Companies — vendor landscape
A quantum-networking workspace that doesn't track vendors loses touch with what can actually be procured. This page has two layers: a deep-dive dossier per vendor — milestones, roadmap, capability metrics, all cited to primary sources — and a static landscape snapshot for vendors where the dossier hasn't been written yet Ezratty 2025 Meddeb 2025 .
Vendors split naturally into three buckets: computers (build quantum processors), networking & QKD (build the network fabric or the QKD endpoints), and components (build the memories, sources, and other infrastructure that the other two consume).
Vendor dossiers
Each dossier below links to a per-vendor page with milestones, roadmap, and modality-specific capability details. Compiled from primary sources (papers, vendor technology pages); see each page for source links. Use the search box and category chips to narrow the grid.
Quantum computers
- Alice & BobASuperconducting quantum-computing hardware built on cat qubits — bosonic qubits encoded in a microwave cavity that autonomously suppress bit-flip errors, leaving mainly phase-flips for an outer error-correction code to handle. Founded in 2020 by two QUANTIC-trained physicists and headquartered in Paris with a Boston office, the company spun out of work with Mines Paris–PSL, ENS, and Inria. It targets fault-tolerant machines with fewer physical qubits per logical qubit than uncorrected-transmon approaches, and offers cat-qubit chips through Google Cloud to early-access researchers and enterprises tracking the fault-tolerant roadmap.Quantum computers
- Alpine Quantum Technologies (AQT)ATrapped-ion quantum computers built around calcium-40 (and ytterbium where the wavelength suits) optical qubits in rack-mounted 19-inch form factor. University of Innsbruck spin-out from the Blatt / Zoller groups, founded in 2018 by Rainer Blatt, Thomas Monz, and Peter Zoller — the team that realised the first controlled-NOT gate on trapped ions. Sells full-stack systems (PINE, MARMOT, IBEX) to HPC centres and research institutes across Europe, with cloud access via Amazon Braket and Scaleway. IBEX Q1 (12 qubits, 24-qubit entanglement demonstrated) went live on Amazon Braket in November 2025.Quantum computers
- Atom ComputingAUS neutral-atom quantum-computing company building nuclear-spin qubits in optical tweezer arrays. Founded at UC Berkeley in 2018; HQ in Berkeley, CA with a 17,000 sq-ft systems-build facility in Boulder, CO. First prototype ("Phoenix", 2021) used strontium-87 atoms in a 10x10 array; the second- generation platform pivoted to ytterbium-171 nuclear-spin qubits and in 2023 became the first gate-based quantum computer to cross 1,000 qubits (1,180 atoms in a 1,225-site array). Now co-developing the 50-logical-qubit Magne machine with Microsoft for delivery to QuNorth (Copenhagen) in 2027.Quantum computers
- DiraqDSilicon CMOS spin-qubit quantum computing. UNSW Sydney spin-out built around Andrew Dzurak's decade-plus programme on electron-spin qubits in silicon MOS quantum dots. The thesis is foundry compatibility: Diraq designs the device, partner foundries (imec on 300 mm, GlobalFoundries on CMOS development) fabricate it with industry-standard tools. September 2025 Nature paper with imec reported >99% one- and two-qubit gate fidelity and >99.9% SPAM from randomly-selected 300 mm samples — achieving scalable error-correction-threshold fidelity from a commercial-fab process rather than a bespoke device.Quantum computers
- Equal1ESilicon-spin quantum computing built on a standard 22 nm fully-depleted SOI (FD-SOI) CMOS process at GlobalFoundries (22FDX). Differentiator is the integration of cryogenic CMOS control, readout, and quantum dots on a single die — the "UnityQ" Quantum System-on-Chip — packaged as a rack-mounted server (Bell-1, 2025; RacQ, 2026) with a self-contained closed-cycle cryocooler at ~0.3 K, removing the dilution refrigerator from the deployment envelope. UCD spin-out commercialising work from the UCD School of Electrical and Electronic Engineering (Staszewski group).Quantum computers
- FujitsuFJapanese IT conglomerate whose quantum-computing programme runs out of the RIKEN RQC-Fujitsu Collaboration Center (Wako, Saitama; established April 2021) with RIKEN and NTT. The joint group built Japan's first domestically developed superconducting quantum computer (64 qubits, October 2023), followed by a 256-qubit machine (April 2025), with a 10,000-plus-qubit / 250-logical-qubit system targeted for FY2030 under NEDO's Post-5G programme. Funding spans MEXT Q-LEAP, Cabinet Office Moonshot Goal 6, and NEDO. The separately marketed "Digital Annealer" is quantum-inspired CMOS hardware, not a quantum computer.Quantum computersSoftware & middleware
- Google Quantum AIGSuperconducting-transmon quantum computing programme inside Alphabet, run as Google Quantum AI under founder and lead Hartmut Neven. The dossier scopes Google Quantum AI (the QC research division headquartered at the Goleta / Santa Barbara campus, with collaborators in Mountain View); it excludes Alphabet's broader cloud, search, and AI businesses. Google publishes a six-milestone hardware roadmap targeting a large-scale error-corrected machine (~10^6 physical qubits) by the end of the decade; the December 2024 Willow chip placed the programme at Milestone 2 (below-threshold quantum error correction on a distance-7 surface-code logical qubit).Quantum computers
- IBM QuantumISuperconducting-transmon quantum computing programme inside IBM Research, with a published 2029 fault-tolerance target — Quantum Starling at 200 logical qubits and 100 million gate operations — and a parallel modular-quantum-networking effort announced with Cisco and Fermilab/SQMS in November 2025. Flagship Nighthawk (120 qubits, square lattice, 218 tunable couplers, 350 us median T1) and the qLDPC-prototype Loon chip were unveiled at the November 2025 Developer Conference. The Bravyi 2024 Nature qLDPC result (Bivariate Bicycle codes) underpins the path through Kookaburra and Cockatoo to Starling and a post-2033 Blue Jay system.Quantum computersNetworking
- InfleqtionIUS neutral-atom quantum-technology company spun out of the University of Colorado (Boulder) in 2007 as ColdQuanta, rebranded to Infleqtion in 2022. Builds rubidium (Rb) neutral-atom quantum computers ("Sqale"), rubidium atomic clocks ("Tiqker"), and cold-atom sensing systems for positioning, navigation, and timing. Acquired the quantum-software developer Super.tech in 2022, integrating the SuperstaQ compiler stack. Listed on NYSE under ticker INFQ on 17 February 2026 following a SPAC merger with Churchill Capital Corp X at a USD 1.8B valuation. Customers include NVIDIA, the US Department of Defense, NASA, and the UK government.Quantum computersQuantum sensingSoftware & middleware
- Intel (Quantum Computing)ISilicon spin-qubit quantum computing research program inside Intel Labs, scoped to Intel's Quantum Computing group (Components Research / Intel Labs). The strategic bet is fab-compatibility — electron-spin qubits encoded in CMOS-style silicon quantum dots, fabricated on Intel's 300-mm production lines at D1 (Hillsboro) using EUV lithography and the same transistor flow as logic chips, paired with cryogenic CMOS control (Horse Ridge) to collapse the room-temperature control rack. Research-stage, not yet a commercial product line; the current flagship Tunnel Falls is distributed to academic partners under the LPS Qubit Collaboratory. Long-running QuTech (TU Delft / TNO) partnership since 2015.Quantum computers
- IonQITrapped-ion quantum computing systems sold through cloud platforms (AWS Braket, Azure Quantum, GCP) and as on-premise installations. A publicly traded (NYSE, 2021) pure-play trapped-ion vendor with cloud and on-premise sales channels. Since 2024 IonQ has been rolling up the adjacent networking and photonics stack — acquiring Qubitekk (2024, entanglement-distribution testbeds), ID Quantique (May 2025, QKD + SNSPDs), Lightsynq (2025, photonic interconnects), and Oxford Ionics (2025, ion-trap chip fabrication) — positioning itself as a vertically integrated quantum-computing + quantum-networking company rather than ions-only.Quantum computers
- IQM Quantum ComputersISuperconducting (transmon) quantum-computer vendor selling on-premises systems to HPC centres, national labs, and universities, with a Europe-led commercial footprint (Munich, Paris, Madrid, Singapore offices alongside Espoo HQ). Founded in 2018 as an Aalto University / VTT spin-out by Jan Goetz, Mikko Möttönen, Kuan Yen Tan, and Juha Vartiainen. Delivered a 54-qubit Radiance to LRZ in 2025 under Euro-Q-Exa and is contracted to deliver a 300-qubit system to VTT in 2027. Raised USD 320M in September 2025 led by Ten Eleven Ventures; SPAC merger with Real Asset Acquisition Corp announced February 2026.Quantum computers
- Microsoft (Quantum)MTopological-qubit quantum-computing programme inside Microsoft Research, built on indium-arsenide / aluminium "topoconductor" heterostructures hosting Majorana zero modes. The dossier scopes the Microsoft Quantum division (led by Krysta Svore) and its Station Q condensed-matter lab in Santa Barbara; it excludes Microsoft's broader cloud, AI, and productivity businesses. The same division operates Azure Quantum, a hybrid cloud platform that brokers access to third-party hardware (IonQ trapped ions, Quantinuum H-series, Pasqal neutral atoms, Rigetti superconducting, plus others) alongside Microsoft's own topological roadmap.Quantum computers
- ORCA ComputingOUK photonic quantum-computing company spun out of the University of Oxford in 2019. Distinguishing technology is a room-temperature photonic quantum memory based on Raman storage in warm atomic vapour, originally developed in the Walmsley group at Oxford. The memory provides controllable, low-loss interactions between travelling photons and atomic ensembles, enabling synchronisation and "repeat-until-success" operations in a photonic processor. Ships rack-mounted photonic appliances (PT-1, PT-2) targeting quantum machine learning and sampling workloads, integrated with classical GPU clusters.Quantum computersQuantum memory
- Origin QuantumOHefei-based superconducting quantum-computing vendor (本源量子) spun out of the CAS Key Laboratory of Quantum Information at USTC in September 2017 by Guo Guangcan and Guo Guoping. Full-stack vertically integrated programme covering the QPU (Wuyuan → Wukong → Wukong-180 chip families), the Tianji measurement-and-control electronics, the Origin Pilot OS, and the Origin Quantum Cloud service. Positioned as China's domestically controllable superconducting QC champion and the country's QC counterpart to QuantumCTek. Initiated A-share STAR-Market IPO counselling in September 2025 at an implied valuation of ~CNY 6.9 B.Quantum computersSoftware & middleware
- Oxford IonicsOTrapped-ion quantum computing built on silicon-CMOS chips with on-chip electronic ion control (EIC) — integrated microwave antennae replace the bulk laser stacks normally used to drive trapped-ion gates, enabling copy-paste scaling using existing semiconductor manufacturing. Spun out of the David Lucas / Chris Ballance ion-trap group at the University of Oxford in 2019 by Chris Ballance and Tom Harty. Reports 99.9992% single-qubit and 99.99% two-qubit gate fidelities on a chip-trap Ca+ system without ground-state cooling (arXiv 2510.17286). Acquired by IonQ in September 2025 for ~USD 1.075B.Quantum computers
- PasqalPFrench neutral-atom quantum-computing company spun out of Institut d'Optique in 2019 by Alain Aspect, Antoine Browaeys, and Thierry Lahaye. Builds rubidium-87 optical-tweezer arrays that run both analog Hamiltonian-simulation and digital gate-based modes; the only neutral-atom vendor with QPUs installed in EuroHPC supercomputing centres and a commercial 200-qubit deployment at Saudi Aramco in Dhahran. Flagship Orion Gamma carries 140+ qubits; the published roadmap targets early FTQC by 2028 (Centaurus) and 100 logical qubits by 2029 (Lyra). SPAC business combination with Bleichroeder Acquisition Corp II announced March 2026.Quantum computers
- Photonic Inc.PSilicon-spin-qubit quantum computing company building a distributed, fault-tolerant architecture around the T centre — a colour centre in silicon that emits telecom-band (1326 nm) photons natively, making each qubit its own repeater node. The pitch is "Entanglement First": scale by photonically linking many modest-size modules over standard telecom fibre rather than chasing a monolithic cryogenic interconnect. Founded in 2016 as a Simon Fraser University spin-out by Stephanie Simmons and Paul Terry. Closed a >USD 200M financing round in May 2026 at a ~USD 2B valuation; Microsoft has been a strategic partner since 2023.Quantum computersQuantum memoryNetworking
- PsiQuantumPSilicon-photonic fault-tolerant quantum computing. Chips are fabricated on 300 mm wafers at GlobalFoundries; the architecture is fusion-based (FBQC) and targets a single utility-scale, million-qubit machine rather than a NISQ product line. Founded in 2016 by Jeremy O'Brien, Terry Rudolph, Pete Shadbolt, and Mark Thompson. Funded in part by the Australian and Queensland governments (A$940M, 2024) to site the first system in Brisbane, with a second US site at the Illinois Quantum and Microelectronics Park in Chicago. The Omega manufacturable chipset launched in February 2025 (Nature). Closed a USD 1B Series E in September 2025 led by BlackRock at a ~USD 7B valuation.Quantum computers
- Q-FactorQIsraeli neutral-atom quantum-computing startup spun out of the Weizmann Institute and Technion atomic-physics groups, emerged from stealth in April 2026 with a USD 24M seed round co-led by NFX and TPY Capital, with Intel Capital, Korea Investment Partners, and the Israel Innovation Authority participating. Pursues a Rydberg-interaction architecture with a stated long-term scaling target beyond one million qubits. Pre-product as of mid-2026, with first-generation high-qubit testbeds under assembly. Founded by Nir Davidson, Ofer Firstenberg, Yoav Sagi, and Guy Raz.Quantum computers
- QolabQSuperconducting quantum-computing hardware startup co-founded by 2025 Physics Nobel laureate John Martinis (CTO), Alan Ho (CEO, ex-Google Quantum AI Head of Product), and UW–Madison professor Robert McDermott (Head of Hardware). Focus is wafer-scale, semiconductor-compatible transmon fabrication, applying 300 mm CMOS tooling and a subtractive-etch window- junction process to replace traditional lift-off for higher-yield, reproducible qubit chips. Engineering office in Los Angeles with the device lab in Madison, Wisconsin; the first quantum startup incubated at UW–Madison.Quantum computersEnabling supply chain
- QuandelaQFrench full-stack photonic quantum-computing company founded in 2017 as a CNRS / Université Paris-Saclay (C2N) spin-out by Pascale Senellart, Niccolò Somaschi, and Valérian Giesz. Builds discrete-variable photonic processors driven by deterministic semiconductor-quantum-dot single-photon sources in micropillar cavities — technology developed in Senellart's group at C2N. Sells the MosaiQ photonic QC line (6 to 24 qubits) and the Prometheus single-photon source. Delivered what the company described as Europe's first customer-installed photonic QC to OVHcloud in 2023; the 12-qubit Lucy was inaugurated at CEA's TGCC in April 2026 under EuroHPC / GENCI.Quantum computersSources & detectors
- QuantinuumQTrapped-ion quantum computing built on a racetrack Quantum Charge-Coupled Device (QCCD) architecture, where ions are physically shuttled between trap zones to give all-to-all connectivity and high-fidelity two-qubit gates. Formed in 2021 from the merger of Honeywell Quantum Solutions and Cambridge Quantum; majority-owned by Honeywell. Sells H-Series systems (H1, H2, Helios) via cloud and on-premise, and ships InQuanto (quantum chemistry) and lambeq (quantum NLP) software stacks. Holds the highest published Quantum Volume scores across its H-Series generations and demonstrated, with Microsoft, logical qubits with error rates below their physical constituents.Quantum computersSoftware & middleware
- Quantum ArtQIsraeli trapped-ion quantum-computing company spun out of the Weizmann Institute ion-trap group in 2022. Builds full-stack systems on multi-core ion chains with dynamic optical segmentation and native multi-qubit gates, reporting a 200-ion fully controlled linear chain as its 2025 technical milestone. Roadmap targets a 1,000-qubit "Perspective" system for quantum advantage, scaling toward a third-generation 2D multi-core architecture. Closed a USD 100M Series A in December 2025 led by Bedford Ridge Capital, extended to USD 140M in April 2026.Quantum computers
- Quantum BrillianceQAustralian-German quantum-computing company spun out of the Australian National University (ANU) in 2019. Builds nitrogen-vacancy (NV) colour- centre processors in synthetic diamond that operate at room temperature, removing the dilution-refrigerator footprint and enabling rack-mount or edge-deployable quantum accelerators. European headquarters in Stuttgart, Germany. Flagship deployment is the on-premises NV diamond accelerator at the Pawsey Supercomputing Centre in Perth, described by the company as the first room-temperature quantum computer installed at a major HPC facility (2022). Sells the Qristal software development kit alongside the diamond processor module.Quantum computers
- Quantum MotionQUK silicon-spin quantum-computing scale-up building qubits on standard 300 mm CMOS wafers through commercial foundry partnerships (GlobalFoundries). Spun out of UCL and Oxford in 2017; differentiator is full-stack co-design of the silicon QPU with cryogenic control electronics, targeting "quantum in a box, not a building" — a data-centre-friendly footprint of a few 19-inch server racks rather than warehouse-scale cryogenic plant. Sells research-access systems via the UK National Quantum Computing Centre testbed; commercial deployment is the Series-C ($160M, May 2026) milestone.Quantum computers
- Quantum SourceQIsraeli photonic fault-tolerant quantum-computing company founded in 2021 by Oded Melamed, Gil Semo, Dan Charash, and Barak Dayan (Weizmann Institute quantum optics). Uses single atoms trapped near a photonic chip as both deterministic photon sources and photon-photon gate mediators — designed to produce large photonic graph (resource) states deterministically rather than via the probabilistic linear-optical multiplexing that dominates competing photonic-FTQC roadmaps. Pre-commercial; closed a USD 50M Series A in September 2024 led by Eclipse Ventures, bringing total funding above USD 77M.Quantum computers
- QuEra ComputingQNeutral-atom quantum computing built on rubidium-87 Rydberg arrays, spun out of the Lukin, Vuletic, and Greiner groups at Harvard and MIT in 2018. Operates Aquila, the 256-qubit analog processor that has been publicly available on AWS Braket since November 2022 — the first neutral-atom machine on a major cloud. Demonstrated 48 logical qubits on a reconfigurable atom array in 2024 (Bluvstein et al., Nature 626, 58). Announced a roadmap targeting 100 logical qubits by 2026 (the Gemini line); closed a USD 230M convertible-note financing in February 2025 led by Google Quantum AI and SoftBank Vision Fund 2.Quantum computers
- QuiX QuantumQDutch photonic-hardware company spun out of the University of Twente in 2019. Builds reconfigurable photonic processors on low-loss silicon-nitride integrated waveguides — universal interferometer meshes used as the linear-optical core of a photonic quantum computer. The flagship 20-mode silicon-nitride processor reports ~2.9 dB loss and >90% transformation fidelity across its 20 programmable modes. Sells processors as modules and as full single-photon systems to academic and industrial customers. Closed a EUR 15M Series A in July 2025 to deliver a first-generation universal single-photon quantum computer.Quantum computersEnabling supply chain
- Rigetti ComputingRFull-stack superconducting quantum-computing vendor. Designs and fabricates transmon-style superconducting qubit processors at its in-house Fab-1 facility in Fremont, California, with a modular multi-chip ("chiplet") architecture that tiles small chips into larger systems to side-step monolithic-yield limits. Founded in 2013 by Chad Rigetti; NASDAQ-listed since March 2022 (RGTI, SPAC merger with Supernova Partners II). The 108-qubit Cepheus-1-108Q general availability launched in April 2026 at 99.1% median two-qubit fidelity, succeeding the 84-qubit Ankaa-3 and a 36-qubit 4x9 multi-chip system that hit 99.5% in 2025.Quantum computers
- Silicon Quantum ComputingSAustralian silicon-spin quantum-computing company spun out of Michelle Simmons' group at UNSW Sydney, headquartered on the UNSW Kensington campus inside the ARC Centre of Excellence CQC2T. Distinctive among silicon-spin vendors for STM-lithographed atomic-precision placement of phosphorus donors in silicon (P-in-Si), rather than the CMOS-foundry electrostatic quantum-dot route taken by Diraq, Quantum Motion and Intel. First commercial product is the Quantum Twins analog quantum simulator (launched February 2026 for materials and chemistry), with early customers including Commonwealth Bank, Telstra and the Australian Department of Defence.Quantum computers
- Universal QuantumUUniversity of Sussex spin-out building modular trapped-ion quantum computers based on ytterbium-171 ions and silicon-microchip ion traps. Moves ions between modules via electric fields rather than photonic links — chip-to-chip ion shuttling under extreme-high vacuum — targeting fault-tolerant scale through copy-paste tiling of small modules. Founded in 2018 by Winfried Hensinger and Sebastian Weidt. Anchor contract is a EUR 67M four-year programme awarded by Germany's DLR in 2022 to deliver a fully scalable trapped-ion quantum computer at DLR Hamburg, scaling toward the ~100-qubit class.Quantum computers
- Xanadu Quantum TechnologiesXPhotonic quantum computing company building room-temperature, fibre-networked machines based on continuous-variable squeezed light and GKP (Gottesman-Kitaev-Preskill) bosonic qubits. Founded in Toronto in 2016 by Christian Weedbrook; demonstrated quantum computational advantage with Borealis (Nature 606, 75, 2022) and launched Aurora in January 2025 — a universal modular photonic QC across four server racks, 35 chips, and 13 km of fibre. Ships the open-source PennyLane SDK alongside the X-series / Borealis / Aurora hardware lines, with Borealis available on AWS Braket. Listed publicly on Nasdaq and TSX via a 2026 SPAC merger with Crane Harbor Acquisition Corp.Quantum computers
QKD
- HEQA Security (formerly QuantLR)HFibre-based QKD vendor (rebranded to HEQA Security in February 2024) positioned on cost: the LoQomo 1 packages a QKD transmitter, receiver, and key-management system into a single 1U enclosure, targeting telecom operators, data centres, critical infrastructure, and government. Founded in 2018 by Yanir Farber and Hagai Eisenberg as a Hebrew University of Jerusalem spin-out. Commercial deployments include the Israeli Ministry of Defense (with HUB Security) and an NVIDIA ConnectX-6 integration for Israeli data centres. Partnered with Singapore's SpeQtral to bridge terrestrial fibre QKD with satellite QKD.QKD
- Huawei Technologies (Quantum programme)HHuawei Technologies runs an internal quantum-communication R&D programme spanning continuous-variable QKD (CV-QKD) prototypes from its Munich Research Center and an OTN-integrated QKD board paired with the OptiXtrans E6600 optical transport platform. Public product detail outside China is thin; the most visible deployment is the 2018 Telefónica + UPM Madrid metro CV-QKD field trial, and the headline product is the OptiXtrans E6600 OTN + QKD board marketed to government, electric-power, and transportation customers. Sales geography is dominated by China and a small set of allied markets given US-led export restrictions on Huawei since 2019.QKDNetworkingEnabling supply chain
- ID QuantiqueIA commercial QKD vendor founded in 2001, among the earliest in the field, spun out of the University of Geneva by Nicolas Gisin, Grégoire Ribordy, Hugo Zbinden, and Olivier Guinnard. Sells turnkey fibre-QKD systems (Cerberis and Clavis XG, with the 4th-generation Clavis XG reaching ~14,000 AES-256 keys/hour at 24 dB loss over up to 150 km of SMF), single-photon detectors (ID230 InGaAs, ID281 SNSPD), and Quantis QRNG chips embedded in Samsung Galaxy "Quantum" phones. Founding member of ETSI ISG-QKD and supplier of the QKD hardware for Slovakia's EuroQCI rollout. Acquired by SK Telecom (majority stake, 2018) and then by IonQ (controlling stake, May 2025).QKDSources & detectorsEnabling supply chain
- Jiuzhou Quantum (QTEC)JZhejiang Jiuzhou Quantum Information Technology Co., Ltd. (QTEC) is a Chinese QKD and quantum-cryptography application vendor headquartered in Tongxiang / Hangzhou, Zhejiang. Sells fibre QKD equipment (QD705 / QD706 series), single-photon detectors, quantum random-number generators, key-management "quantum key cloud" platforms, and integrated quantum- security products (encryption gateways, VPNs, secure mobile phones). Positions itself as the principal secondary vendor in a Chinese QKD market dominated by QuantumCTek. Listed on China's NEEQ since June 2016 (837638).QKDEnabling supply chain
- MagiQ TechnologiesMOne of the earliest commercial QKD vendors. Founded 1999 by Bob Gelfond; in 2003 announced Navajo, marketed as the first commercial QKD product, followed by the QPN series (QPN 5505 / 7505 / 8505) in 2004-2006. Commercial QKD visibility has declined since the mid-2010s; the company has diversified into RF spectrum-recovery hardware for the US Department of Defense (AIMS) and, more recently, fibre-optic seismic sensing (GeoLite). Customer base centres on US defence and research agencies — Air Force, Navy, Army, DARPA, DOE, NASA — alongside energy and critical-infrastructure operators.QKDQuantum sensingEnabling supply chain
- Mitsubishi Electric Corporation (Quantum R&D)MMitsubishi Electric's quantum-communications research programme runs out of the Information Technology R&D Center (Kamakura) and MERL (Cambridge MA). One of the four Japanese operators of the NICT-led Tokyo QKD Network in 2010, supplying a decoy-state BB84 link on the 24 km Otemachi–Hakusan section. Current work spans a LEO on-orbit QKD payload demonstration with NICT (Terran Orbital Nebula bus, selected January 2026) and a February 2025 joint research agreement with Quantinuum K.K., Keio University, SoftBank and partners on scalable quantum information processing. A corporate research programme, not a standalone product line.QKDNetworking
- NEC Corporation (Quantum R&D)NJapanese IT conglomerate whose quantum programme runs out of the Secure System Platform Research Laboratories and the NEC-AIST Quantum Technology Cooperative Research Laboratory. NEC was one of the four original Japanese operators of the NICT-led Tokyo QKD Network in 2010, supplying a 1.25 GHz decoy-state BB84 link with WDM multiplexing on the 45 km Koganei–Otemachi loop. Commercial focus is continuous-variable QKD (CV-QKD) for in-band multiplexing of QKD with classical data over standard telecom fibre. NEC also leads the superconducting-qubit hardware-integration project inside Japan's Cabinet Office Moonshot Goal 6 programme.QKDQuantum computers
- Q*BirdQDutch quantum-secure communications start-up, spun out of QuTech (TU Delft / TNO) in January 2022. Q*Bird positions itself as the only commercial provider of Measurement-Device-Independent QKD (MDI-QKD). The Falqon® Series implements a hub-and-spoke, multi-node architecture in which a central measurement hub performs Bell-state measurements between end-node- emitted photons — removing all detector-side-channel vulnerabilities and letting many users share one hub. Early reference deployments span the Port of Rotterdam pilot, a 132 km cross-border Benelux link, and first national MDI-QKD networks in Spain (UPM Madrid) and Ireland (Walton/SETU).QKD
- QNu LabsQIndia's first commercial quantum-safe cybersecurity vendor. Incubated at IIT Madras Research Park in 2016 and headquartered in Bengaluru, QNu Labs ships a trio of quantum-security products: Tropos (laser-based QRNG, ~100 Mbps, NIST SP 800-90B), Armos (fibre-QKD with a decoy-state Differential Phase Shift protocol, ~200 km / 40 dB loss budget), and Hodos (post-quantum cryptography platform integrating NIST-selected PQC algorithms). Anchor customer is the Indian government — supplies QKD and QRNG to the Indian Army, Indian Navy, BEL, DRDO and WESEE, and is the lead vendor on the National Quantum Mission's 1,000-km indigenous quantum communication testbed announced in April 2025.QKDEnabling supply chainSoftware & middleware
- QuantumCTekQQuantumCTek (国盾量子) is China's largest publicly-listed commercial QKD vendor by deployed network footprint and the hardware supplier behind the national quantum-secure communication backbone. Spun out of Pan Jianwei's University of Science and Technology of China (USTC) group in Hefei in 2009, it listed on the Shanghai STAR Market in July 2020 (688027) as China's first publicly traded quantum company. Its decoy-state BB84 terminals equip the Beijing–Shanghai trunk, metro QKD networks, and the Micius satellite ground stations. Product range also covers QRNGs, quantum-secure VPN gear, single-photon detectors, key- management systems, and (since 2022) superconducting quantum computers.QKDQuantum computersEnabling supply chain
- SES TechcomSWholly-owned subsidiary of SES S.A. delivering end-to-end satellite-enabled solutions to governmental, institutional and supranational customers. Prime contractor and operator for EAGLE-1, a sovereign LEO quantum-key-distribution satellite (announced as Europe's first; ~€130M, ESA + European Commission + a consortium of 20+ European companies, Vega-C launch from Kourou in late 2026 / early 2027). Also leads the Luxembourg national quantum-communication infrastructure (LuxQCI) consortium under the EuroQCI programme.QKDNetworking
- SpeQtralSSingapore-based satellite-QKD vendor commercialising entangled-photon QKD payloads spun out of the Centre for Quantum Technologies (CQT) at the National University of Singapore. Operated the SpooQy-1 3U CubeSat (deployed from the ISS in 2019) as the technology pathfinder; flying the SpeQtre 6U-class entangled-photon-source demonstrator (deployed November 2025); building SpeQtral-1, a commercial QKD-pathfinder LEO satellite on a Kongsberg NanoAvionics bus with an Mbryonics 10 cm optical terminal, targeting BB84 and BBM92 protocols.QKDNetworking
- Toshiba (Quantum Technology Division)TToshiba's quantum business runs across Toshiba Europe's Cambridge Research Laboratory (CRL) and Toshiba Corporation's R&D Center in Kawasaki, with Cambridge as the product-shipping hub. The Cambridge site, led by Andrew Shields, runs the commercial QKD product line — the Multiplexed MU and Long Distance LD systems — and the Twin-Field QKD research programme behind the Nature / Nature Photonics demonstrations; Kawasaki provides the corporate vehicle (taken private by Japan Industrial Partners in December 2023). Flagship references: the BT–Toshiba London quantum-secured metro and the JPMorgan Chase / Ciena 800 Gbps co-existence trial.QKD
Quantum memory
- LightsynqLQuantum-memory and photonic-interconnect company spun out of Harvard's Lukin group and the AWS Center for Quantum Networking, commercialising silicon-vacancy (SiV) colour-centre memory nodes in diamond nanophotonic cavities — the architecture behind the Knaut et al. 2024 Boston-area quantum-network demonstration. Founded in early 2024; came out of stealth in November 2024 with a USD 18M Series A led by Cerberus Ventures, with Murata Electronics and In-Q-Tel participating. Acquired by IonQ on 30 May 2025 for approximately USD 306.8M in IonQ stock; now operates as the SiV-memory / photonic-interconnect business line within IonQ's networking roadmap. CEO Mihir Bhaskar is IonQ SVP of R&D.Quantum memoryNetworking
- memQMSolid-state quantum-memory and quantum-networking hardware startup spun out of the University of Chicago Pritzker School of Molecular Engineering and Argonne National Laboratory, productising erbium-ion quantum emitters and memories in thin-film TiO2 deposited on foundry-fabricated silicon photonics. Targets a CMOS-compatible, telecom C-band (~1.5 µm) memory platform that interfaces directly with installed optical-fibre networks without frequency conversion. Product stack spans Quantum Network Interface Controllers (QNIC), Quantum Memory Modules (QMM), a Quantum Control System, and an xDQC compiler for heterogeneous QPU interconnect.Quantum memoryNetworking
- QunnectQQuantum-networking hardware vendor building room-temperature rubidium-vapour quantum memories, entangled-photon sources, and telecom-band polarization-stabilisation gear as rack-mount appliances. Spun out of Eden Figueroa's group at Stony Brook University in 2017; operates GothamQ, a leased metropolitan dark-fibre testbed under New York City. Flagship Carina turnkey suite launched in 2025; in February 2026 demonstrated first metro-scale entanglement swapping over commercial fibre with Cisco at >99% polarization fidelity. Closed a USD 10M Series A extension in June 2025 led by Airbus Ventures with Cisco Investments.Quantum memoryNetworking
- WelinqWQuantum-networking hardware vendor commercialising laser-cooled rubidium quantum memories and entangled-photon sources as rack-mount appliances for distributed quantum computing. Spun out of Laboratoire Kastler Brossel (Sorbonne Universite / CNRS / ENS-PSL) on roughly two decades of cold-atom ensemble work in Julien Laurat's group. Positions its flagship QDrive memory as the interconnect layer for neutral-atom and photonic quantum processors, with development partnerships at Pasqal and Quandela and first deployments inside the EuroQCI national-testbed perimeter.Quantum memoryNetworking
Networking
- Aliro QuantumAQuantum-networking software vendor building the control, orchestration, and simulation stack for entanglement-based networks. A 2019 Harvard spin-out from the Narang Lab; does not build photonic or matter-qubit hardware but integrates third-party devices into operable networks for telcos, government labs, and data-centre operators. AliroNet was selected in 2023 as controller for the EPB Quantum Network in Chattanooga — the first US commercial quantum network. Closed a USD 15M oversubscribed Series B in February 2026 led by Gutbrain Ventures with Cisco Investments, Argon Ventures, and Murata's Wonderstone Ventures.NetworkingSoftware & middleware
- CAS Quantum NetworkCState-affiliated builder and operator of China's National Wide-Area Quantum Secure Communication Backbone Network. Jointly founded in November 2016 by CAS Holdings (the commercial arm of the Chinese Academy of Sciences) and the University of Science and Technology of China (USTC), it functions as a network operator and systems integrator rather than a QKD-device vendor: it sources decoy-state BB84 hardware from QuantumCTek and Jiuzhou and runs the trusted-node fibre backbone, metro networks, and Micius (墨子号) satellite-to-ground links. Sits inside the Pan Jianwei (潘建伟) USTC ecosystem but is a distinct legal entity from QuantumCTek.NetworkingQKD
- Cisco Quantum LabsCQuantum-networking research arm of Cisco Systems Inc. (NASDAQ:CSCO). This dossier covers Cisco Quantum Labs and the Outshift-by-Cisco quantum-networking programme — not Cisco's broader classical networking business. Cisco does not build a quantum computer; its bet is on the telecom-fibre quantum-networking layer: photonic encoding translators, entanglement-distribution infrastructure, and protocol/control software for inter-QPU networks. Cisco is also an active strategic investor in pure-play quantum-networking startups (Aliro, Qunnect).Networking
- KT CorporationKSouth Korea's incumbent fixed-line and second-largest mobile carrier (KOSPI:030200, NYSE:KT). KT operates a commercial Quantum-Safe Network service on its Korean fibre footprint, using QKD endpoints sourced from ID Quantique and (in pilot) Toshiba; the public reference deployments are the Seoul-Daejeon QKD-as-a-Service testbed (Toshiba) and the ~490 km Seoul-Busan hybrid QKD trunk. KT is the lead Korean contributor to ITU-T SG13 / SG17 QKD-network standardisation and chairs SG13 WP1; the company describes itself as the holder of the most QKD-network-related international standard approvals.NetworkingQKD
- LG U+LSouth Korea's third mobile carrier and a subsidiary of LG Corporation (KOSPI:032640). LG U+'s quantum-safe networking has centred on post-quantum cryptography (PQC) more than QKD: in April 2022 the company launched what it described as the world's first commercial PQC-protected dedicated-line service for enterprise customers, building on a 2020 PQC pilot connecting LG Innotek's Pyeongtaek plant to a Busan data centre and Eulji Medical Center. QKD activity exists alongside the PQC line but is smaller-scale than SK Telecom's or KT's; LG U+'s broader quantum work also includes D-Wave quantum-annealing trials for 6G non-terrestrial network planning.NetworkingQKDEnabling supply chain
- LQUOMLQuantum-repeater technology startup spun out of Tomoyuki Horikiri's lab at Yokohama National University in 2020. Productises a cavity-enhanced entangled-photon source matched to Pr:YSO rare-earth quantum memory at 606 nm for long-distance quantum communication. Sells the LQ-PS-100 two-photon source and runs joint R&D programmes with Japanese telcos and integrators (SoftBank, Toshiba, Anritsu). Demonstrated entangled-photon quantum communication across the Tokyo metropolitan area with SoftBank in 2023; closed a Series B in October 2025 led by SBI Investment and signed a long-distance-QKD joint research agreement with Toshiba in March 2026.NetworkingQuantum memory
- Nu QuantumNCavendish Laboratory spin-out building the "Entanglement Fabric" — a vendor-agnostic quantum-networking layer that interconnects heterogeneous quantum processors into a modular, distributed fault-tolerant machine. Founded in 2018 by Carmen Palacios-Berraquero. Sells the Qubit-Photon Interface and the rack-mounted Quantum Networking Unit, which launched in June 2025 with <3e-3 Bell-state-measurement error, up to 99.7% remote-qubit fidelity, and MHz entanglement-attempt rates. Closed a USD 60M Series A in December 2025 led by National Grid Partners, with Gresham House Ventures, Morpheus Ventures, Amadeus, IQ Capital, Ahren, Cambridge Enterprise Ventures, NSSIF, and Sumitomo/Presidio.NetworkingEnabling supply chain
- QphoXQTU Delft spin-out (Kavli Institute of Nanoscience) building piezo-optomechanical microwave-to-optical transducers — "Quantum Modems" that interface superconducting qubits with telecom-band optical fibre. Founded in 2020 by Simon Gröblacher, Robert Stockill, and Frederick Hijazi. Demonstrated the first optical readout of a superconducting qubit with Rigetti and Qblox in February 2025 (Nature Physics) and won a USD 5.8M three-year AFRL contract with Rigetti later that year. Launched the Quantum Transducer as a commercial product in March 2026 with IBM named as first partner for distributed-quantum-computing testing.NetworkingEnabling supply chain
- Quantum Bridge TechnologiesQUniversity-of-Toronto spin-out commercialising Distributed Symmetric Key Exchange (DSKE) — a quantum-safe key-distribution scheme aimed at telecom and enterprise networks. Founded by Hoi-Kwong Lo (UofT, twin-field QKD) and Mattia Montagna; product positioning is networking-software for quantum-safe key delivery rather than dedicated QKD endpoint hardware. Partnered with Juniper Networks (Beyond Labs) under a strategic investment in August 2024 and has received non-dilutive Canadian federal funding (NRC, ISED).NetworkingQKDSoftware & middleware
- SK TelecomSSouth Korea's largest mobile carrier (KOSPI:017670, NYSE:SKM) and the operator-side anchor of Korea's commercial quantum-network programme. This dossier covers SKT's *own* quantum activities — its Quantum Tech Lab (est. 2011), the QKD overlay deployed on its commercial 5G/LTE backbone by SK Broadband, the QRNG integration into the Samsung Galaxy Quantum line, and SKT's ITU-T/ETSI standardisation work — not the underlying hardware, which is supplied by ID Quantique (separate dossier; formerly an SKT/SK Square subsidiary, controlling stake transferred to IonQ in May 2025). SKT is now a strategic partner of both IDQ and IonQ via a ~3.1% IonQ equity position taken in the same transaction.NetworkingQKDEnabling supply chain
Sources & detectors
- AegiqAUK integrated-photonics vendor commercialising deterministic quantum-dot single-photon sources (iSPS) and full-stack photonic-quantum-computing and networking subsystems. Spun out of the University of Sheffield in 2019 from the III-V semiconductor quantum-dot group by Maksym Sich, Andrii Iamshanov, and Scott Dufferwiel. Flagship iSPS is a fibre-coupled cryogenic quantum-dot source operating at GHz-class repetition rates; selected in 2024 to deliver a full-stack photonic quantum-computer testbed to the UK National Quantum Computing Centre at Harwell.Sources & detectorsEnabling supply chain
- Photon SpotPUS single-photon-detection vendor selling superconducting-nanowire single-photon-detector (SNSPD) systems and sub-Kelvin cryogenic packages to quantum-information, deep-space-optical-comms, and instrumentation customers. Founded in 2009 by Vikas Anant and bootstrapped on product sales and R&D contracts. Longstanding NASA/JPL supplier, with SNSPDs flown on the Deep Space Optical Communications demonstration and the Artemis II laser-comm system. Flagship Eos-series fibre-coupled SNSPDs report >95% system detection efficiency at 1550 nm. Competes with Single Quantum and IDQ; NIST CHIPS Act award funds a large-format SNSPD camera cryostat.Sources & detectorsEnabling supply chain
- Single QuantumSDutch single-photon-detection vendor selling closed-cycle superconducting-nanowire single-photon-detector (SNSPD) systems to quantum-information, LIDAR, and deep-space-optical-communications customers. Spun out of TU Delft in 2012 by Sander Dorenbos and Val Zwiller to commercialise NbN SNSPDs developed in the Delft quantum-optics group. Flagship Eos closed-cycle multi-channel SNSPD system reports >90% system detection efficiency and <15 ps timing jitter across visible-to-telecom bands. Competes with IDQ, Photon Spot, and Quantum Opus in the multi-channel SNSPD market; roadmap targets larger pixel counts and detector arrays for imaging applications.Sources & detectorsEnabling supply chain
Quantum sensing
- AtomionicsACold-atom quantum gravimeter for mineral, hydrocarbon, geothermal and groundwater exploration. Flagship product Gravio is a portable cold-atom interferometer designed to be operated from a moving vehicle (SUV today, drone roadmap), paired with an in-house AI interpretation layer (ORE-O) that turns gravity data into 3D subsurface models. Customers are mining majors and energy explorers; a separate defence-oriented strand develops cold-atom inertial sensors for GPS-denied navigation with DSO National Laboratories.Quantum sensing
- Mesa QuantumMEarly-stage chip-scale quantum-sensor startup commercialising vapour-cell atomic clocks and Rydberg-atom RF sensors out of Svenja Knappe's group at CU Boulder, originally NIST/JILA atomic-clock-on-a-chip work. Founded in 2023 by Sristy Agrawal (CEO) and Knappe; incubated via NSF I-Corps Hub West. Primary market is alternative position-navigation-and-timing (Alt-PNT) for GPS-denied operations, with a USD 1.9M SpaceWERX SBIR contract supporting miniaturised atomic clocks as a GPS alternative. The vapour-cell platform shares physical lineage with warm-atom quantum memories used in quantum-networking.Quantum sensingQuantum memory
Software & middleware
- Arqit QuantumALondon-listed (NASDAQ: ARQQ) quantum-safe cryptography vendor selling QuantumCloud — a cloud-delivered Symmetric Key Agreement (SKA) platform-as- a-service for enterprise and defence customers. Originally founded in 2017 to build a global satellite QKD network ("QKDSat") in partnership with ESA and Virgin Orbit; pivoted away from satellite delivery in December 2022 after reclassifying the partly-built satellite as held for sale. The current product is software-only and does not use quantum hardware to generate or distribute keys.Software & middlewareQKD
- ClassiqCHardware-agnostic quantum software platform. Developers express algorithms as high-level functional models in Qmod; the Classiq synthesis engine compiles them into circuits optimised for a chosen backend (IBM, AWS Braket, Azure Quantum, IonQ, Quantinuum, Rigetti, Pasqal, OQC) under user-specified depth, width, and gate-count constraints. Founded in Tel Aviv in 2020 by Nir Minerbi, Yehuda Naveh, and Amir Naveh. Raised a USD 110M Series C in May 2025 led by Entrée Capital, and added AMD Ventures, Qualcomm Ventures, and IonQ in a November 2025 strategic up-round, bringing cumulative funding above USD 200M.Software & middleware
- Horizon Quantum ComputingHSoftware-first quantum company building a hardware-agnostic IDE (Triple Alpha) and algorithm-synthesis compiler stack that converts classical source code into quantum programs. In December 2025 deployed Ember One — what the company described as the first quantum computer owned and operated by a quantum-software firm — a Singapore-deployed system integrating a Maybell cryogenic platform, Quantum Machines control electronics, and a Rigetti Novera superconducting QPU. Listed on Nasdaq as "HQ" in March 2026 via dMY Squared SPAC merger.Software & middlewareQuantum computers
- QedmaQNoise-learning quantum-error-mitigation software for noisy gate-model quantum processors. Flagship product QESEM (Quantum Error Suppression and Error Mitigation) characterises a device's noise, suppresses some error classes during execution, and corrects the residual bias in post-processing; delivered as an IBM Qiskit Function and demonstrated on IBM Eagle and Heron devices. Founded in Tel Aviv in 2020 by Asif Sinay (CEO), Dorit Aharonov (Hebrew University), and Netanel Lindner (Technion). Closed a USD 26M Series A in July 2025 led by Glilot+ with IBM, TPY Capital, and Korea Investment Partners participating.Software & middleware
- Tata Consultancy Services (Quantum Programme)TTCS's quantum programme sits inside TCS Research and the TCS Cybersecurity practice. As a large IT services firm rather than a hardware vendor, its quantum scope is advisory, integration, and applications software, running three threads: post-quantum cryptography migration advisory and third-party QKD integration (partners include Quantum Bridge and Toshiba); the TCS Quantum Computing Lab on AWS Braket; and the May 2025 IBM / TCS / Andhra Pradesh agreement to deploy an IBM Quantum System Two at the Amaravati Quantum Valley Tech Park. Does not build photonic sources, detectors, memories, or QKD endpoints.Software & middlewareNetworking
Enabling supply chain
- Element SixEElement Six is the synthetic-diamond foundry of the De Beers Group, designing and manufacturing CVD- and HPHT-grown diamond with controlled defect content. Supplies the substrates that solid-state quantum programmes built on NV (nitrogen-vacancy) and SiV (silicon-vacancy) colour centres depend on, via the DNV-B1 / DNV-B14 ensemble product lines and electronic- grade single-crystal diamond for single-defect work in quantum-memory and repeater nodes. Supplies substrates to multiple diamond-defect quantum-networking programmes, including QuTech, Harvard, Lightsynq (equity stake Nov 2024), IonQ, AWS, and Quantum Brilliance. Does not build quantum end-systems itself.Enabling supply chain
- Quantum MachinesQQuantum-control hardware and software vendor. Ships the OPX family of pulse-level controllers (OPX, OPX+, OPX1000) and the QUA programming language used to drive superconducting, trapped-ion, neutral-atom, and spin qubits; the installed base spans more than half of the organisations building quantum computers worldwide. Co-developed NVIDIA DGX Quantum (OPX1000 + Grace Hopper, sub-4 us round-trip) as a GPU-coupled quantum-control reference platform. Founded in Tel Aviv in 2018 by Weizmann Institute alumni Itamar Sivan, Yonatan Cohen, and Nissim Ofek; closed a USD 170M Series C in February 2025 led by PSG Equity, taking cumulative funding to USD 280M.Enabling supply chainSoftware & middleware
- Tesat-SpacecomTIndependently operating subsidiary of Airbus Defence and Space; manufactures space-borne optical-communication terminals — the LCT135 GEO/LEO laser-comm family flown on the European Data Relay System since 2007 and the SCOT family for LEO constellations. The dossier covers Tesat's QKD-payload role: the SCOT80 terminal forms the optical link for Europe's first sovereign LEO QKD satellite, Eagle-1, where Tesat builds both the telescope and the integrated on-board QKD module (C-band phase-encoded BB84 + decoy-state). Eagle-1 launches on Vega-C from Kourou in late 2026 / early 2027.Enabling supply chainQKD
No dossiers match the current filters.
QC systems and roadmaps
A snapshot of what's actually shipping today and what the leading vendors have committed to publicly. Logical-qubit numbers are 0 for NISQ machines; positive integers reflect publicly-demonstrated error-corrected logical qubits from a vendor announcement or a peer-reviewed paper. Roadmap rows carry the vendor's stated target year — these slip routinely, so treat them as direction rather than schedule.
Currently shipping or publicly demonstrated
| Vendor | Machine | Year | Physical | Logical | Modality |
|---|---|---|---|---|---|
| QuEra | Aquila ⓘ | 2022 | 256 | 0 | neutral-atom (analog) |
| Atom Computing | Phoenix ⓘ | 2023 | 1180 | 0 | neutral-atom |
| IonQ | Forte Enterprise ⓘ | 2024 | 36 | 0 | trapped-ion |
| Quantinuum | H2 ⓘ | 2024 | 56 | 0 | trapped-ion |
| Rigetti | Ankaa-3 ⓘ | 2024 | 84 | 0 | transmon |
| Willow ⓘ | 2024 | 105 | 1 | transmon (research) | |
| IBM | Heron R2 ⓘ | 2024 | 156 | 0 | transmon |
| Origin Quantum | Wukong ⓘ | 2024 | 72 | 0 | transmon |
| CAS / QuantumCTek | Tianyan-504 (Xiaohong) ⓘ | 2024 | 504 | 0 | transmon |
| Microsoft | Majorana 1 ⓘ | 2025 | 8 | 0 | topological (claims contested) |
| Xanadu | Aurora ⓘ | 2025 | 12 | 0 | photonic, networked |
| PsiQuantum | Omega (chipset) ⓘ | 2025 | — (chipset) | 0 | silicon-photonic (FBQC) |
| IonQ | Tempo ⓘ | 2025 | 64 (AQ) | 0 | trapped-ion (Ba⁺, networked-cell) |
| Pasqal | Orion Gamma ⓘ | 2025 | 140 | 0 | neutral-atom |
| IBM | Nighthawk ⓘ | 2025 | 120 | 0 | transmon |
| USTC | Zuchongzhi 3.0 ⓘ | 2025 | 105 | 0 | transmon (research) |
| Origin Quantum | Wukong-180 ⓘ | 2026 | 180 (+ 251 coupling) | 0 | transmon |
| Quantinuum | Helios ⓘ | 2025 | 98 | 48 | trapped-ion (Ba-137) |
Public roadmaps
| Vendor | Machine | Target | Physical | Logical | Modality |
|---|---|---|---|---|---|
| IonQ | Roadmap rung ⓘ | 2026 | 100–256 | 12 | trapped-ion (Ba⁺) |
| IBM | Kookaburra ⓘ | 2026 | 4 158 | qLDPC memory demo | transmon |
| QuEra | Gemini-class ⓘ | 2026 | ~3 000 | 30 | neutral-atom |
| IonQ | Roadmap rung ⓘ | 2027 | 10 000 | 800 | trapped-ion (Ba⁺) |
| PsiQuantum | Brisbane QCC ⓘ | 2027 | utility-scale | early FTQC | silicon-photonic (FBQC) |
| Pasqal | Vela ⓘ | 2027 | 200+ | 20 | neutral-atom |
| Quantinuum | Sol ⓘ | 2027 | 192 | tens | trapped-ion |
| IonQ | Roadmap rung ⓘ | 2028 | 20 000 | 1 600 | trapped-ion (Ba⁺, photonic interconnect) |
| Pasqal | Centaurus ⓘ | 2028 | ~10 000 | early FTQC | neutral-atom |
| IBM | Starling ⓘ | 2029 | — | 200 | transmon (qLDPC) |
| Quantinuum | Apollo ⓘ | 2029 | thousands | hundreds | trapped-ion |
| IonQ | Roadmap rung ⓘ | 2029 | 200 000 | 8 000 | trapped-ion (Ba⁺) |
| PsiQuantum | Million-qubit FTQC ⓘ | 2029 | ~1 000 000 | hundreds | silicon-photonic (FBQC) |
| IonQ | Roadmap rung ⓘ | 2030 | 2 000 000 | 80 000 | trapped-ion (Ba⁺) |
| IBM | Blue Jay ⓘ | 2033 | — | 2 000 | transmon (qLDPC) |
Each row is sourced from a vendor press release, peer-reviewed paper, or investor disclosure. Two patterns stand out: trapped ions lead on demonstrated logical-qubit count today (Quantinuum Helios is the only shipping product with publicly-verified error-corrected qubits), and the inflection to ~200 logical qubits at fault-tolerance is uniformly targeted for ~2029 across superconducting, trapped-ion, neutral-atom, and silicon-photonic roadmaps. IonQ's roadmap rungs and PsiQuantum's million-qubit Brisbane target are the most aggressive published; treat the implied delivery dates with the same caution as any vendor schedule.
Notes on this page
- The landscape snapshot is a starting point. Names + platforms + one-line positions, drawn from survey literature. Goes stale within months.
- Dossiers are the long-term tracking surface. Milestones, roadmap, capability metrics, and citations. Fields the dossier couldn't verify to a primary source are shown as unverified rather than filled in with a guess.
- Source priority for dossiers: peer-reviewed paper > arXiv preprint > vendor blog or technology page > press release > industry tracker. Wikipedia is acceptable only for company-history facts, never for technical numbers.
- Staleness. Each dossier records when it was last verified. Entries older than three months get a stale badge on the dossier page — a prompt to re-check the primary sources.
For survey-level reference on the per-platform vendor landscape, see Ezratty UQT Pt 2 Ezratty 2025 and Kumar 2025 IJNDC Kumar et al. 2025 .