| 2026-05-13 | 6 | funding | — | NVision Imaging closes $55M Series B with $17M EIB venture loan; expands from quantum-sensing POLARIS MRI platform into a new PIQC quantum-computing product lineCAL·1 |
| 2026-05-13 | 6 | product | — | Infleqtion launches Quantum Spectrum Rydberg-atom RF sensing platform with three named allied-nation defense programs and named prime-integrator partnersCAL·1 |
| 2026-05-12 | 7 | funding | SPIN | Photonic Inc. closes $200M USD ($275M CAD) investment round at $2B USD post-money valuation, led by Planet First Partners; brings cumulative capital raised to $350M USDCAL·1 |
| 2026-05-12 | 7 | earnings | SC | D-Wave Quantum reports Q1 2026 record bookings of $33.4M (+1,994% YoY), discloses Quantum Circuits dual-rail acquisition financial impact, and announces dual-rail roadmap to 100 logical qubits by end-2032CAL·1 |
| 2026-05-11 | 6 | earnings | SC | Rigetti reports Q1 2026 revenue of $4.4M (+199% YoY), announces Cepheus-1-108Q general availability with 99.8% median two-qubit gate fidelity, $569M cashCAL·1 |
| 2026-05-11 | 6 | earnings | PHOT | Quantum Computing Inc reports Q1 2026 revenue of $3.7M (94x YoY, Luminar-driven), $16M contract backlog, $1.4B cash; Fab 1 generating early revenue, Fab 2 in planningCAL·1 |
| 2026-05-08 | 8 | m&a | ION | Quantinuum publicly files Form S-1 for Nasdaq IPO under ticker symbol QNT, with J.P. Morgan and Morgan Stanley as joint lead book-running managersCAL·1 |
| 2026-05-08 | 8 | m&a | ION | Quantinuum publicly files S-1 with the SEC for a proposed Nasdaq IPO under ticker QNT, targeting >$20B valuation; Q1 2026 revenue disclosed at $5.2M from $19.1M YoYCAL·1 |
| 2026-05-08 | 6 | m&a | ION | SkyWater Technology stockholders approve IonQ merger by ~98.8% of votes cast; Q2/Q3 2026 close still gated by FTC HSR Second RequestCAL·1 |
| 2026-05-08 | 8 | funding | ION | Quantinuum publicly files Form S-1 for Nasdaq IPO under ticker QNT, FY2025 net revenue $30.9M and $677M cash; J.P. Morgan and Morgan Stanley joint lead bookrunnersCAL·1 |
| 2026-05-07 | 7 | funding | SPIN | Quantum Motion closes $160M Series C co-led by DCVC and Kembara, becoming the UK's best-funded quantum computing company and the largest dedicated silicon-spin-qubit financing on recordCAL·1 |
| 2026-05-06 | 7 | benchmark | SC | Q-CTRL and IBM publish a 120-qubit Fermi-Hubbard simulation reporting a 3,000× wall-clock speedup over an optimized tensor-network classical baseline, framed by Q-CTRL as the first evidence of practical quantum advantage on a useful problemCAL·1 |
| 2026-05-06 | 7 | earnings | ION | IonQ reports Q1 2026 record revenue of $64.7M (755% YoY), beats guidance midpoint by 30%, raises full-year 2026 outlook to $260-270M, and ships first 6th-generation 256-qubit chip-based system to the University of CambridgeCAL·1 |
| 2026-05-05 | 8 | funding | SC | QuantWare closes a $178M (€152M) Series B led by Intel Capital with In-Q-Tel — the largest private round to date for a dedicated quantum-processor companyCAL·1 |
| 2026-05-05 | 6 | partnership | ION | Quantinuum and BMW Group extend their materials-science quantum partnership across the Helios → Sol → Apollo system roadmapCAL·1 |
| 2026-05-05 | 7 | funding | ION | eleQtron closes €57M (≈$61.5M) Series A led by Schwarz Digits to scale its MAGIC microwave-driven trapped-ion platformCAL·1 |
| 2026-05-05 | 6 | product | ION | AQT launches the LYNX series of 19-inch rack-mounted trapped-ion quantum computers and reports a European-record Quantum Volume of 32,768CAL·1 |
| 2026-05-05 | 6 | research | SC | IBM, Cleveland Clinic and RIKEN simulate a 12,635-atom protein (trypsin) on IBM Quantum Heron processors — the largest known biological simulation on a quantum computerCAL·1 |
| 2026-05-04 | 7 | funding | PHOT | Xanadu files Form 424B3 prospectus registering up to 293.66 million Class B shares for resale; XNDU stock falls roughly 65% intradayCAL·1 |
| 2026-05-04 | 4 | product | — | IonQ launches an automated commercial InSAR ground-deformation monitoring service running on its Capella Acadia SAR satellite constellation (non-quantum core)CAL·1 |
| 2026-05-04 | 5 | hiring | SC | D-Wave Quantum amends CEO Alan Baratz's employment agreement: base salary raised to $700K and $13.488M RSU grant approved (8-K Item 5.02)CAL·1 |
| 2026-04-29 | 6 | partnership | SC | IBM launches MIT-IBM Computing Research Lab and 750-job FutureNow Hub at the Illinois Quantum and Microelectronics ParkCAL·1 |
| 2026-04-29 | 6 | policy | — | House Science, Space and Technology Committee passes H.R. 8462, the National Quantum Initiative Reauthorization ActCAL·1 |
| 2026-04-27 | 5 | partnership | — | IonQ and Florida LambdaRail sign Master Service Agreement for first US statewide quantum-safe network initiativeCAL·1 |
| 2026-04-27 | 5 | funding | ION | Quantum Art extends Series A to $140M total with Hudson Bay, Poalim Equity, and others joining Bedford Ridge Capital leadCAL·1 |
| 2026-04-27 | 5 | partnership | SC | IQM books first enterprise quantum-computer purchase in Japan: 20-qubit Radiance system to TOYO Corporation, delivery by end-2026CAL·1 |
| 2026-04-26 | 5 | research | — | Bloomberg reports Goldman Sachs disbanded its quantum computing team while JPMorgan continues investing — Wall Street strategy divergesCAL·1 |
| 2026-04-24 | 7 | m&a | ION | FTC issues HSR Second Request on IonQ–SkyWater merger; HSR waiting period extended; parties still target Q2/Q3 2026 closeCAL·1 |
| 2026-04-23 | 6 | product | — | Cisco unveils a Universal Quantum Switch research prototype that aims to convert and route quantum information across all four photonic encoding modalities on existing telecom fiberCAL·1 |
| 2026-04-23 | 7 | m&a | — | Honeywell confirms Quantinuum confidentially filed an S-1 for IPO and expects Q2 2026 deconsolidation as part of portfolio reshapingCAL·1 |
| 2026-04-22 | 6 | earnings | SC | IBM Q1 2026 earnings: EPS $1.91 beats consensus $1.81; CEO reaffirms fault-tolerant quantum computer by 2029 and expands UIUC partnershipCAL·1 |
| 2026-04-21 | 5 | funding | — | Cerca Magnetics secures £3.8M Series A to scale its quantum brain-scanner technologyCAL·1 |
| 2026-04-17 | 5 | partnership | ION | SDT and IonQ partner to bring trapped-ion quantum computing to the Korean QuREKA platformCAL·1 |
| 2026-04-17 | 6 | benchmark | SC | Qclairvoyance Quantum Labs achieves chemically accurate molecular simulations on IQM quantum hardwareCAL·1 |
| 2026-04-17 | 5 | product | PHOT | OVHcloud adds Quandela's Belenos photonic quantum processor to its quantum platformCAL·1 |
| 2026-04-16 | 7 | funding | — | Wellcome Leap launches a $50M Quantum for Bio challenge program, with a $2M prize for breakthrough biological-application resultsCAL·1 |
| 2026-04-16 | 6 | funding | — | SBQuantum closes an oversubscribed $4M seed round, names Eric Giroux CEO, and launches a US defense-market sister entity (Zero Drift Technologies)CAL·1 |
| 2026-04-16 | 6 | partnership | PHOT | PsiQuantum, the University of Tokyo, and Mitsubishi Chemical announce a Japan-focused quantum-workforce-development partnershipCAL·1 |
| 2026-04-16 | 6 | benchmark | SC | ParityQC demonstrates a 52-qubit Quantum Fourier Transform on IBM Heron architectureCAL·1 |
| 2026-04-16 | 5 | research | SC | Research team encodes genomic data onto an IBM quantum computer, demonstrating a biological-data workflow on superconducting hardwareCAL·1 |
| 2026-04-16 | 5 | partnership | ION | Horizon Quantum partners with AQT on quantum software-hardware integrationCAL·1 |
| 2026-04-15 | 7 | policy | — | US Senate Commerce Committee advances the National Quantum Initiative Reauthorization Act, expanding focus to applications, manufacturing, and PQC migrationCAL·1 |
| 2026-04-14 | 5 | product | — | A commercial quantum-communication payload reaches orbit, moving quantum comms toward commercial readinessCAL·1 |
| 2026-04-14 | 5 | product | PHOT | Quandela deploys a photonic quantum computer integrated with an HPC systemCAL·1 |
| 2026-04-14 | 7 | product | — | NVIDIA launches Ising — the first open AI models for quantum computing — with day-one adoption by IonQ, IQM, Atom Computing, Infleqtion, and Q-CTRLCAL·1 |
| 2026-04-14 | 5 | product | SC | IQM introduces AI-based calibration for its scalable superconducting systems via NVIDIA Ising adoptionCAL·1 |
| 2026-04-14 | 8 | benchmark | ION | IonQ is selected for DARPA's HARQ program and demonstrates the first photonic interconnect between two commercial quantum systems via entanglementCAL·1 |
| 2026-04-14 | 5 | partnership | SPIN | Bull and Equal1 partner on hybrid quantum-HPC integration in EuropeCAL·1 |
| 2026-04-13 | 5 | product | — | WISeSat (SEALSQ subsidiary) completes pilot phase with Swiss Space Command and announces a next-generation 6U satellite mission planCAL·1 |
| 2026-04-13 | 6 | partnership | — | IonQ and the University of Maryland expand QLab partnership with a $7.5M multi-year agreement funded by Maryland's Capital of Quantum InitiativeCAL·1 |
| 2026-04-10 | 7 | product | SC | IQM opens its first US Quantum Technology Center in the University of Maryland's Discovery DistrictCAL·1 |
| 2026-04-10 | 6 | earnings | — | Arqit Quantum posts preliminary H1 FY2026 revenue of $620–630K, up roughly 10× versus H1 FY2025's $67KCAL·1 |
| 2026-04-09 | 7 | partnership | ION | Horizon Quantum agrees to buy one of IonQ's first 6th-generation, chip-based 256-qubit trapped-ion systemsCAL·1 |
| 2026-04-08 | 6 | earnings | — | SEALSQ reports Q1 2026 preliminary revenue of ~$4.1M (+200% YoY) and reaffirms FY2026 +50–100% growth guidanceCAL·1 |
| 2026-04-07 | 7 | product | SC | Rigetti moves Cepheus-1-108Q — its 108-qubit, twelve-chiplet modular system — to general availability with 99.1% median two-qubit fidelityCAL·1 |
| 2026-04-07 | 5 | hiring | — | Moth expands into the US, adding senior hires from Amazon and IBM to accelerate growthCAL·1 |
| 2026-04-07 | 6 | partnership | SC | IQM to deliver a 54-qubit Radiance system to Galaxy Systemy Informatyczne — its first private-enterprise sale worldwideCAL·1 |
| 2026-04-07 | 5 | research | — | Fermilab-led team develops an electronically tunable quantum detector for dark-matter searchesCAL·1 |
| 2026-04-07 | 5 | hiring | — | Delft Circuits hires Karen Keenan as COO to scale quantum I/O hardware manufacturingCAL·1 |
| 2026-04-06 | 7 | funding | PHOT | QBoson closes a CNY 1B (~$145M) Series B led by state-backed Beijing Financial Holdings Group and ICBC CapitalCAL·1 |
| 2026-04-06 | 6 | funding | NA | Q-Factor exits stealth with a $24M seed led by NFX and TPY Capital, with Intel Capital participating, targeting a million-qubit neutral-atom computerCAL·1 |
| 2026-04-02 | 5 | product | — | SEALSQ and IC'Alps hit Common Criteria certification milestones and publish a full post-quantum certification roadmapCAL·1 |
| 2026-03-31 | 6 | earnings | — | SEALSQ reports FY2025 audited revenue of $18.3M (+66% YoY) and reaffirms +50–100% 2026 revenue growth guidanceCAL·1 |
| 2026-03-31 | 6 | product | — | UK launches the SPOQC satellite for space-based quantum communications researchCAL·1 |
| 2026-03-31 | 5 | partnership | — | STV Group and Post-Quantum test quantum-secure drone communications in a field exerciseCAL·1 |
| 2026-03-31 | 6 | funding | — | SEALSQ expands its dedicated Quantum Fund to $200M and accelerates sovereign quantum infrastructure investmentsCAL·1 |
| 2026-03-31 | 5 | product | SC | Rigetti sells a Novera QPU to the University of Saskatchewan, its first Canadian university installCAL·1 |
| 2026-03-31 | 6 | partnership | — | QuSecure joins NIST's National Cybersecurity Center of Excellence on post-quantum migration reference architecturesCAL·1 |
| 2026-03-31 | 6 | funding | PHOT | Monarch Quantum closes an oversubscribed $55M growth round, surpassing $100M in total capital and contracts within six months of foundingCAL·1 |
| 2026-03-31 | 5 | funding | — | memQ closes a $10M Series A to advance distributed quantum networking hardware, co-led by Quantonation and Ocean Azul PartnersCAL·1 |
| 2026-03-31 | 7 | research | NA | Caltech and Oratomic publish a resource estimate claiming Shor's algorithm is possible with as few as 10,000 reconfigurable atomic qubitsCAL·1 |
| 2026-03-31 | 5 | funding | SC | Alice & Bob wins a $3.9M ARPA-E award, with LANL and GE Vernova partners, to apply quantum computing to rare-earth-free magnet discoveryCAL·1 |
| 2026-03-30 | 6 | partnership | — | Toshiba and LQUOM partner on long-distance quantum communication research incorporating quantum repeatersCAL·1 |
| 2026-03-30 | 5 | product | PHOT | Quantum Computing Inc deploys a Dirac-3 photonic system on the Quantum Corridor networkCAL·1 |
| 2026-03-30 | 6 | funding | SC | IQM Quantum Computers secures €50M in growth financing to accelerate global expansionCAL·1 |
| 2026-03-28 | 5 | product | SC | Google opens early access to the Willow quantum processor and invites experimental proposalsCAL·1 |
| 2026-03-28 | 6 | research | SPIN | Chinese research team demonstrates logical operations on a silicon-spin-qubit quantum processorCAL·1 |
| 2026-03-27 | 8 | funding | PHOT | Xanadu becomes the first pure-play photonic quantum computing company to go public via SPAC merger, raising ~$302M at a $3.1B valuationCAL·1 |
| 2026-03-27 | 7 | policy | — | UK opens ProQure quantum-procurement programme, with Phase 1 contracts of up to £14M per awardeeCAL·1 |
| 2026-03-27 | 6 | product | — | SBQuantum selected to fly a diamond NV-center magnetometer in NOAA's MagQuest challengeCAL·1 |
| 2026-03-26 | 5 | hiring | ION | IonQ elects William F. Scannell to its board of directorsCAL·1 |
| 2026-03-26 | 5 | partnership | — | Open Quantum Design, Western Digital, and QuScript launch open-source collaboration on quantum error correctionCAL·1 |
| 2026-03-26 | 6 | hiring | SC | John Martinis, Nobel laureate and superconducting-quantum pioneer, joins a White House science and technology panelCAL·1 |
| 2026-03-26 | 6 | benchmark | SC | IBM and academic partners use a quantum computer to reproduce key material propertiesCAL·1 |
| 2026-03-25 | 6 | funding | SC | Rigetti commits up to $100M to UK quantum expansion, targeting a 1,000-qubit system over 3–4 yearsCAL·1 |
| 2026-03-25 | 6 | policy | — | Google shortens its internal timeline for quantum-safe encryption transitionCAL·1 |
| 2026-03-25 | 6 | partnership | — | Cisco and Atom Computing partner to advance quantum networking for scalable computingCAL·1 |