| 2026-06-04 | 8 | funding | ION | Quantinuum prices upsized Nasdaq IPO at $60 per share, raising about $1.68B; trading begins 2026-06-04 as QNTCAL·1 |
| 2026-06-03 | 7 | benchmark | NA | Atom Computing demonstrates sustained multi-round quantum error correction with the toric code on neutral atomsCAL·1 |
| 2026-06-03 | 7 | funding | SPIN | Quobly closes €115M Series A to industrialize FD-SOI silicon spin-qubit processorsCAL·1 |
| 2026-06-02 | 6 | benchmark | TOPO | Microsoft reports Majorana 2 topological-qubit gains: over-20-second parity lifetime and more-than-2x topological gap on a lead-based tetronCAL·1 |
| 2026-06-02 | 5 | m&a | — | SEALSQ raises Wecan Group stake to majority and commits CHF 5M to post-quantum financial-compliance platformCAL·1 |
| 2026-06-02 | 6 | m&a | — | SEALSQ completes acquisition of Swiss quantum-interconnect company Miraex SACAL·1 |
| 2026-06-01 | 7 | funding | ION | Quantinuum upsizes Nasdaq IPO to roughly $1.43B at up to $14.3B valuation in amended Form S-1CAL·1 |
| 2026-06-01 | 6 | product | SC | D-Wave unveils gate-model fault-tolerant roadmap targeting 100 logical qubits by 2032CAL·1 |
| 2026-05-28 | 7 | product | SC | IBM files 8-K Item 7.01 committing more than $10 billion over five years to quantum computing across R&D, capex, ecosystem, manufacturing, and M&A, reaffirming the 2029 large-scale fault-tolerant targetCAL·1 |
| 2026-05-27 | 6 | research | — | ETH Zurich publishes peer-reviewed Nature paper on experimental randomness amplification using entangled superconducting qubits over a 30-meter cryogenic link, certifying perfect-quality random output from imperfect inputsCAL·1 |
| 2026-05-26 | 8 | m&a | — | Terra Quantum AG and Nasdaq-listed SPAC Axiom Intelligence Acquisition Corp 1 sign definitive business combination agreement at $3.5 billion pro-forma equity valuation, targeting Nasdaq listing under ticker TQ in second half 2026CAL·1 |
| 2026-05-26 | 8 | m&a | ION | Quantinuum files Amendment No. 2 to S-1 with the SEC setting IPO pricing terms at $45 to $50 per share for 21,052,632 shares, targeting up to $1.05 billion in gross proceeds at a $12.7 billion fully-diluted valuation, with Nasdaq Global Market listing under ticker QNTCAL·1 |
| 2026-05-26 | 6 | product | — | Standards body GlobalPlatform launches Pavona, the first open-source silicon distribution with hardware-accelerated ML-KEM and ML-DSA post-quantum primitives and FIPS 140-3 / Common Criteria alignment, with founding members including Meta, Qualcomm, Tenstorrent, ZeroRISC, and Max Planck Institute for Security and PrivacyCAL·1 |
| 2026-05-26 | 7 | funding | SC | D-Wave Quantum announces signing of $100 million Letter of Intent with U.S. Department of Commerce under the CHIPS and Science Act, with company commitment to issue $100 million in common stock to the Commerce Department upon execution of final award documentsCAL·1 |
| 2026-05-22 | 7 | policy | — | French President Emmanuel Macron announces an additional €1B ($1.16B USD) for France's quantum plan and €550M ($638M USD) for a future European semiconductor program; total €3B over 5 years across research, military, EU return, and private leverageCAL·1 |
| 2026-05-22 | 6 | funding | SC | Alice & Bob extends its €100 million Series B with a strategic investment from NVIDIA's NVentures, marking NVentures' first publicly-disclosed equity investment in a quantum-hardware companyCAL·1 |
| 2026-05-21 | 6 | research | PHOT | Xanadu announces an algorithmic optimization halving Quantum Read-Only Memory (QROM) Toffoli-gate overhead — ending a roughly seven-year industry-wide plateau on QROM cost — with the implementation already deployed in PennyLaneCAL·1 |
| 2026-05-21 | 6 | research | SC | Flatiron Institute CCQ + Boston University publish in Science a 3D tensor-network belief-propagation classical algorithm that reproduces D-Wave Advantage2's March 2025 'beyond-classical' spin-glass-dynamics result on modest classical hardwareCAL·1 |
| 2026-05-21 | 5 | partnership | ION | Quantinuum and bp announce a scale-up of their seismic-imaging quantum-computing collaboration to simulate more complex subsurface oil and gas properties, building on a prior pilotCAL·1 |
| 2026-05-21 | 6 | product | PHOT | PsiQuantum relocates its $940 million AUD ($620 million USD) Australian utility-scale quantum-computer project from Brisbane Airport to Moreton Bay Central, with groundbreaking in June 2026 and operational target slipped from end-2027 to 2029CAL·1 |
| 2026-05-21 | 9 | policy | — | US Department of Commerce signs nine letters of intent under the CHIPS Research and Development Office allocating $2.013 billion in incentives with minority non-controlling equity stakes to nine quantum hardware and foundry companiesCAL·1 |
| 2026-05-21 | 8 | m&a | SC | IBM and the US Department of Commerce announce the creation of Anderon, a standalone 300-millimeter quantum-wafer foundry in Albany, New York, capitalised with $1 billion in CHIPS incentives and $1 billion in matched IBM cash plus intellectual-property, asset, and workforce contributionsCAL·1 |
| 2026-05-21 | 7 | product | — | GlobalFoundries launches Quantum Technology Solutions, a dedicated quantum-manufacturing business unit, anchored by a $375 million US Department of Commerce CHIPS Research and Development Office letter of intentCAL·1 |
| 2026-05-20 | 6 | research | — | Toshiba Europe and Quantum Bridge Technologies publish details of a transatlantic Cambridge-Toronto quantum-safe key-distribution demonstration combining QKD with a Distributed Symmetric Key Establishment relayCAL·1 |
| 2026-05-20 | 6 | product | — | Kipu Quantum extends its Rimay quantum machine-learning platform with an offline-inference framework that runs trained surrogate models on classical hardwareCAL·1 |
| 2026-05-20 | 5 | product | NA | Infleqtion bundles three neutral-atom advances — a dual-species Rb-Cs Rydberg syndrome-measurement gate at 0.975 fidelity, a static-field optical atom-transport technique, and the open-source resource-superstaq architecture-level estimation packageCAL·1 |
| 2026-05-20 | 6 | correction | SC | Correction: Nord Quantique $30M USD financing was a seven-investor syndicate with no designated lead, not a Fidelity-led round; primary-source Business Wire announcement of 2026-05-18 names BDC, Fidelity Investments Canada ULC, Panache Ventures, Presidio Ventures, Quantacet, Quantonation, and Real VenturesCAL·1 |
| 2026-05-19 | 7 | research | SPIN | imec presents a world-first functioning silicon quantum-dot qubit device fabricated with High-NA EUV lithography on a 300mm CMOS line, with 6nm plunger-and-barrier-gate gaps targeting million-qubit scale-upCAL·1 |
| 2026-05-18 | 6 | partnership | NA | Aramco and Pasqal inaugurate Saudi Arabia's first quantum computer at Dhahran data center and launch Middle East's first commercial Quantum-Computing-as-a-Service platform on a 200-qubit Pasqal neutral-atom QPUCAL·1 |
| 2026-05-16 | 7 | funding | OTH | Sygaldry Technologies, the new venture of Rigetti Computing founder Chad Rigetti, discloses $139M USD aggregate raise (Seed + Series A) to build quantum-accelerated AI servers, with $105M USD Series A led by Breakthrough Energy VenturesCAL·1 |
| 2026-05-15 | 6 | policy | — | US National Science Foundation launches $1.5B USD decade-long X-Labs initiative with two named quantum tracks (Interconnects + Integrated Photonics; Scientific Instrumentation for Sensing + Imaging), OTA Solutions funding mechanismCAL·1 |
| 2026-05-15 | 6 | funding | SC | Nord Quantique discloses $30M USD Fidelity-led financing at ~$1.4B USD post-money valuation, joining the Canadian quantum-unicorn cohortCAL·1 |
| 2026-05-15 | 6 | policy | — | US Department of Energy Office of Science issues RFI for a 2028 fault-tolerant quantum computer with concrete logical-qubit and logical-error-rate procurement targetsCAL·1 |
| 2026-05-14 | 6 | policy | — | NIST advances nine post-quantum digital-signature candidates to Round 3 of the Additional Digital Signatures for PQC Standardization Process via NIST IR 8610CAL·1 |
| 2026-05-14 | 6 | earnings | NA | Infleqtion reports inaugural public-company Q1 2026 earnings: $9.5M USD revenue (+14% YoY, 100% organic, 100% quantum), $569M USD cash, full-year 2026 revenue guidance raised to ≥$40M USDCAL·1 |
| 2026-05-14 | 6 | earnings | PHOT | Xanadu Quantum reports first public-company quarter: Q1 2026 revenue of $2.8M (+4x YoY) with widened $20.6M net loss, $272.5M cash; announces $300M synthetic ATM facilityCAL·1 |
| 2026-05-14 | 7 | m&a | SC | IQM and Real Asset Acquisition Corp. publicly file Form F-4 with the SEC for proposed $1.8B de-SPAC merger; target Nasdaq listing under IQMXCAL·1 |
| 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 | policy | — | G7 Quantum Technologies Working Group, co-chaired by Banque de France and Bank of Canada, publishes first reference report on quantum technologies' implications for the financial sectorCAL·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 |
| 2026-05-09 | 7 | product | SC | Origin Quantum launches Origin Wukong-180, a 180-computational-qubit fourth-generation superconducting quantum computer, with global cloud access from day oneCAL·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 |
| 2026-03-20 | 5 | funding | — | Horizon Quantum completes its dMY Squared SPAC merger and begins trading on Nasdaq (HQ), raising ~$120MCAL·1 |
| 2026-03-11 | 5 | partnership | ION | IonQ and the University of Cambridge to establish a Quantum Innovation Centre with an on-campus 256-qubit systemCAL·1 |
| 2026-03-10 | 4 | partnership | ION | IonQ and ARLIS collaborate on a zero-trust quantum-security framework for national securityCAL·1 |
| 2026-03-04 | 4 | earnings | SC | Rigetti Q4 2025 revenue of $1.9M misses; ~$590M cash, demonstrates 99.9% two-qubit fidelity on a prototypeCAL·1 |
| 2026-03-03 | 4 | partnership | — | Arqit and 6WIND partner to launch quantum-safe VPN servicesCAL·1 |
| 2026-03-02 | 4 | earnings | PHOT | Quantum Computing Inc Q4/FY2025: opened Tempe TFLN Fab 1, raised >$1.5B, POET TFLN-modulator collaborationCAL·1 |
| 2026-02-26 | 6 | partnership | — | IonQ deploys Romania's national quantum communication infrastructure (RoNaQCI), one of Europe's largest QKD networksCAL·1 |
| 2026-02-26 | 6 | earnings | SC | D-Wave Quantum FY2025 revenue up 179% to $24.6M with record $884.5M cashCAL·1 |
| 2026-02-25 | 3 | earnings | — | SkyWater Technology Q4 2025 results, reported amid its pending acquisition by IonQCAL·1 |
| 2026-02-25 | 7 | earnings | ION | IonQ FY2025 revenue of $130M up 202%, becomes first quantum company above $100M annual GAAP revenueCAL·1 |
| 2026-02-23 | 5 | partnership | ION | IonQ awarded a position on the U.S. Missile Defense Agency's SHIELD IDIQ (Golden Dome) contract vehicleCAL·1 |
| 2026-02-17 | 6 | funding | NA | Infleqtion completes its SPAC merger and begins trading (INFQ), the first publicly listed neutral-atom quantum firmCAL·1 |
| 2026-02-11 | 3 | earnings | — | GlobalFoundries Q4 2025 EPS beats; quantum exposure limited to foundry servicesCAL·1 |
| 2026-02-03 | 5 | m&a | PHOT | Quantum Computing Inc completes its $110M acquisition of Luminar SemiconductorCAL·1 |
| 2026-01-27 | 5 | partnership | SC | D-Wave signs a $20M agreement to sell an Advantage2 quantum computer to Florida Atlantic UniversityCAL·1 |
| 2026-01-27 | 5 | partnership | SC | D-Wave, Anduril and Davidson report a missile-defense quantum application with 10x faster time-to-solutionCAL·1 |
| 2026-01-27 | 5 | partnership | SC | D-Wave signs a $10M, two-year enterprise QCaaS agreement with a Fortune 100 companyCAL·1 |
| 2026-01-26 | 8 | m&a | ION | IonQ to acquire U.S. foundry SkyWater Technology for ~$1.8B to vertically integrate its quantum supply chainCAL·1 |
| 2026-01-21 | 5 | partnership | — | SEALSQ signs a non-binding MoU with Gujarat and Kaynes SemiCon for a 300M-unit/year post-quantum chip center in IndiaCAL·1 |
| 2026-01-20 | 5 | partnership | SC | Rigetti receives an $8.4M order for a 108-qubit quantum computer from India's C-DACCAL·1 |
| 2026-01-14 | 5 | m&a | SPIN | SEALSQ enters a non-binding MoU to invest in and potentially acquire a majority stake in silicon-spin-qubit firm Quobly (~$200M)CAL·1 |
| 2026-01-07 | 7 | m&a | SC | D-Wave to acquire Quantum Circuits for $550M, pairing annealing with error-corrected gate-model superconducting techCAL·1 |
| 2025-12-23 | 5 | partnership | ION | IonQ finalizes agreement to deliver a 100-qubit Tempo system to South Korea's KISTI national supercomputing centerCAL·1 |
| 2025-12-17 | 4 | partnership | ION | IonQ expands its long-term partnership with QuantumBasel for next-generation quantum systemsCAL·1 |
| 2025-12-15 | 6 | m&a | PHOT | Quantum Computing Inc agrees to acquire Luminar Semiconductor for $110M to accelerate its photonic roadmapCAL·1 |
| 2025-12-10 | 4 | partnership | ION | Einride and IonQ partner to apply quantum computing to freight-logistics optimizationCAL·1 |
| 2025-12-05 | 5 | funding | — | Horizon Quantum and dMY Squared announce a $110M PIPE to support Horizon's SPAC go-publicCAL·1 |
| 2025-12-02 | 4 | governance | SC | D-Wave forms a dedicated U.S. Government Business Unit led by Jack Sears Jr.CAL·1 |
| 2025-12-01 | 4 | product | — | SEALSQ, WISeKey and WISeSat.Space launch a post-quantum-secure satellite aboard a SpaceX missionCAL·1 |
| 2025-12-01 | 4 | partnership | ION | IonQ and CCRM form a strategic quantum-biotech collaborationCAL·1 |
| 2025-11-24 | 4 | partnership | — | IonQ invests in and partners with Heven AeroTech to develop quantum-enabled drones for national securityCAL·1 |
| 2025-11-21 | 5 | partnership | — | SEALSQ and Quobly collaborate to integrate post-quantum security with CMOS silicon-spin-qubit systemsCAL·1 |
| 2025-11-20 | 6 | partnership | — | IBM and Cisco announce plans to build a network of distributed, fault-tolerant quantum computersCAL·1 |
| 2025-11-17 | 6 | funding | PHOT | Quantum Computing Inc raises an additional ~$750M, reaching ~$1.5B liquidity to fund TFLN volume productionCAL·1 |
| 2025-11-14 | 4 | earnings | PHOT | Quantum Computing Inc Q3 2025 revenue $384K up 280%; positive net income on non-operating items, $352M cashCAL·1 |
| 2025-11-13 | 5 | funding | — | Quantum-software firm Classiq closes a strategic up-round (AMD, Qualcomm Ventures, IonQ), passing $200M cumulativeCAL·1 |
| 2025-11-12 | 3 | earnings | — | GlobalFoundries Q3 2025 EPS beats consensus; quantum exposure limited to foundry servicesCAL·1 |
| 2025-11-11 | 4 | product | — | Arqit launches SKA Central Controller, a quantum-safe key-management product for managed service providersCAL·1 |
| 2025-11-10 | 4 | earnings | SC | Rigetti Computing Q3 2025 revenue of $1.9M misses; $201M GAAP loss is non-cash, ~$600M cash, 1000+ qubit roadmapCAL·1 |
| 2025-11-07 | 8 | product | ION | Quantinuum's Helios: a 98-qubit trapped-ion processor with all-to-all connectivity and 99.921% two-qubit gate fidelityCAL·1 |
| 2025-11-06 | 4 | partnership | SC | SkyWater and QuamCore to co-develop a fabricated single-flux-quantum digital controller for superconducting qubitsCAL·1 |
| 2025-11-06 | 5 | partnership | ION | IonQ advances to Stage B of DARPA's Quantum Benchmarking InitiativeCAL·1 |
| 2025-11-06 | 5 | earnings | SC | D-Wave Quantum Q3 2025 revenue up 100% to $3.7M; 71% gross margin, record cash $836MCAL·1 |
| 2025-11-05 | 3 | earnings | — | SkyWater Technology Q3 2025 EPS swings to a beat; quantum exposure limited to foundry servicesCAL·1 |
| 2025-11-05 | 7 | earnings | ION | IonQ Q3 2025 revenue of $39.9M up 222%, beats guidance by 37%; full-year outlook raised to $106-110MCAL·1 |
| 2025-11-05 | 5 | partnership | SC | BASF and D-Wave complete a hybrid-quantum manufacturing proof-of-concept with measured efficiency gainsCAL·1 |
| 2025-11-03 | 5 | partnership | SC | D-Wave's Advantage2 goes operational for U.S. government work at Davidson Technologies in AlabamaCAL·1 |
| 2025-11-03 | 5 | research | — | Argonne demonstrates software-orchestrated quantum-network applications with 12-hour stable entanglement distribution over deployed campus fiberCAL·1 |
| 2025-10-24 | 4 | share_action | — | SEALSQ uplists to NASDAQ Global Select Market and surpasses $1B market capitalizationCAL·1 |
| 2025-10-24 | 7 | research | SC | IBM runs Relay-BP qLDPC error-correction decoder in real time on off-the-shelf AMD FPGAsCAL·1 |
| 2025-10-22 | 5 | product | — | SEALSQ unveils Quantum Shield QS7001 secure element with hardware-embedded NIST PQC algorithmsCAL·1 |
| 2025-10-22 | 6 | earnings | SC | IBM Q3 2025: revenue and EPS beat, full-year guidance raised, Quantum Nighthawk processor announcedCAL·1 |
| 2025-10-22 | 8 | research | SC | Google reports first verifiable quantum advantage with Quantum Echoes (OTOC) algorithm on Willow, published in NatureCAL·1 |
| 2025-10-21 | 7 | benchmark | ION | IonQ/Oxford Ionics report >99.99% two-qubit gate fidelity on trapped ions without ground-state coolingCAL·1 |
| 2025-10-20 | 4 | partnership | ION | IonQ co-founds Q-Alliance quantum hub aligned with Italy's National Strategy for Quantum TechnologyCAL·1 |
| 2025-10-20 | 4 | share_action | SC | D-Wave Quantum announces redemption of public warrantsCAL·1 |
| 2025-10-15 | 6 | funding | — | SEALSQ prices ~$200M offering ($94.8M registered direct + $105.2M private placement) led by Heights CapitalCAL·1 |
| 2025-10-15 | 6 | partnership | SC | Swiss Quantum Technology signs €10M agreement to deploy a D-Wave Advantage2 annealing systemCAL·1 |
| 2025-10-10 | 8 | share_action | ION | IonQ prices $2.0B equity offering at $93.00 per share (16.5M shares)CAL·1 |
| 2025-10-07 | 6 | m&a | — | IonQ completes all-stock acquisition of Vector Atomic, expanding into quantum sensingCAL·1 |
| 2025-10-06 | 7 | funding | PHOT | Quantum Computing Inc. announces $750M oversubscribed private placement (37.18M shares)CAL·1 |
| 2025-10-03 | 3 | share_action | — | SkyWater Technology files automatic $350M mixed-securities shelf (Form S-3)CAL·1 |
| 2025-09-30 | 4 | product | SC | Rigetti books ~$5.7M in purchase orders for two 9-qubit Novera systemsCAL·1 |
| 2025-09-29 | 5 | governance | ION | IonQ appoints former Space Force chief Gen. John 'Jay' Raymond to its boardCAL·1 |
| 2025-09-26 | 5 | partnership | — | SEALSQ signs $25M definitive deal with Quantix Edge Security for Spain PQC personalization centerCAL·1 |
| 2025-09-26 | 5 | share_action | — | Coherent refinances credit facility with $1.25B new term loans and $700M revolverCAL·1 |
| 2025-09-25 | 6 | benchmark | ION | IonQ reaches #AQ 64 algorithmic-qubit benchmark on Tempo, three months earlyCAL·1 |
| 2025-09-24 | 6 | share_action | PHOT | Quantum Computing Inc. closes $500M oversubscribed private placementCAL·1 |
| 2025-09-23 | 5 | benchmark | — | IonQ demonstrates visible-to-telecom photon frequency conversion for quantum networkingCAL·1 |
| 2025-09-18 | 5 | funding | — | Rigetti and QphoX win 3-year $5.8M AFRL contract for superconducting quantum networkingCAL·1 |
| 2025-09-18 | 5 | policy | — | NIST publishes draft CSWP 48 mapping PQC migration capabilities to its risk frameworksCAL·1 |
| 2025-09-17 | 6 | m&a | — | IonQ announces intent to acquire quantum-sensing firm Vector AtomicCAL·1 |
| 2025-09-17 | 8 | m&a | ION | IonQ completes ~$1.075B acquisition of Oxford IonicsCAL·1 |
| 2025-09-17 | 5 | partnership | — | IonQ signs DOE MOU to advance quantum technologies in space alongside Honeywell and EPBCAL·1 |
| 2025-09-16 | 5 | benchmark | NA | Infleqtion demonstrates logical architecture on 114-qubit neutral-atom QPU with named error-reduction metricsCAL·1 |
| 2025-09-10 | 8 | funding | PHOT | PsiQuantum raises $1B Series E at $7B valuation to build million-qubit machinesCAL·1 |
| 2025-09-10 | 5 | governance | ION | IonQ launches IonQ Federal unit and names Cardillo and Acosta to government-facing rolesCAL·1 |
| 2025-09-10 | 6 | m&a | NA | Infleqtion to go public via Churchill Capital X SPAC at $1.8B pre-money valuationCAL·1 |
| 2025-09-10 | 5 | research | SC | Google Quantum AI reports generative quantum advantage on a 68-qubit superconducting processorCAL·1 |
| 2025-09-09 | 4 | earnings | — | SEALSQ reports H1 2025 results and reaffirms FY2025 revenue guidance of $17.5-20.0MCAL·1 |
| 2025-09-09 | 5 | m&a | — | Horizon Quantum to go public via dMY Squared SPAC at ~$503M valuationCAL·1 |
| 2025-09-04 | 7 | funding | ION | Quantinuum raises ~$600M at $10B pre-money valuation with first NVIDIA venture investmentCAL·1 |
| 2025-09-04 | 5 | research | — | IonQ and Element Six produce foundry-compatible quantum-grade diamond filmsCAL·1 |
| 2025-09-04 | 5 | hiring | ION | IonQ appoints former Arm CFO Inder M. Singh as Chief Financial Officer and COOCAL·1 |
| 2025-09-02 | 4 | partnership | SC | Rigetti and India's C-DAC sign MOU to explore co-development of hybrid quantum computing systemsCAL·1 |
| 2025-08-22 | 6 | benchmark | SC | IQM reports 99.93% CZ-gate fidelity with simultaneous >99.9% single-qubit and readout fidelities on a tunable-coupler transmon deviceCAL·1 |
| 2025-08-21 | 5 | partnership | — | SEALSQ and Ajyal Holding sign LOI for a $100M Abu Dhabi post-quantum chip JV (KUAENTUM)CAL·1 |
| 2025-08-20 | 5 | partnership | SC | Rigetti deploys a 9-qubit Novera QPU on-premises at Montana State University's new QCORE facilityCAL·1 |
| 2025-08-14 | 4 | earnings | PHOT | Quantum Computing Inc Q2 2025 revenue ~$61K; $200M raise lifts cash to $349MCAL·1 |
| 2025-08-12 | 6 | benchmark | PHOT | USTC's Jiuzhang 4.0 photonic processor reports 3050-photon Gaussian boson sampling, a renewed quantum-advantage scale claimCAL·1 |
| 2025-08-12 | 4 | earnings | SC | Rigetti Computing Q2 2025 revenue falls to $1.8M, missing consensusCAL·1 |
| 2025-08-12 | 6 | product | SC | Rigetti makes 36-qubit multi-chip Cepheus-1-36Q generally available, halving two-qubit error vs Ankaa-3CAL·1 |
| 2025-08-07 | 4 | partnership | — | Arqit Quantum selected as first quantum-security firm in Vodafone's Tomorrow Street Scaleup X programmeCAL·1 |
| 2025-08-06 | 3 | earnings | — | SkyWater Technology Q2 2025 EPS beats consensus; quantum exposure limited to foundry servicesCAL·1 |
| 2025-08-06 | 6 | earnings | ION | IonQ Q2 2025 revenue of $20.7M beats guidance; full-year outlook raised to $82-100MCAL·1 |
| 2025-08-06 | 5 | earnings | SC | D-Wave Quantum Q2 2025 revenue up 42% to $3.1M; bookings +92%, cash at record $819MCAL·1 |
| 2025-08-05 | 5 | partnership | PHOT | Quantum Computing Inc wins first direct NIST contract for thin-film-lithium-niobate photonic-chip foundry servicesCAL·1 |
| 2025-08-05 | 3 | earnings | — | GlobalFoundries Q2 2025 EPS beats consensus; quantum exposure limited to foundry servicesCAL·1 |
| 2025-08-04 | 6 | m&a | — | SEALSQ completes EUR12.5M acquisition of French ASIC designer IC'ALPS after Ministry of Economy clearanceCAL·1 |
| 2025-08-01 | 5 | research | SPIN | HRL Laboratories demonstrates an always-on exchange-only (AEON) silicon spin qubit at 99.86% average Clifford fidelityCAL·1 |
| 2025-07-31 | 5 | research | ION | IonQ and Oak Ridge National Laboratory demonstrate hybrid quantum-classical power-grid Unit Commitment optimizationCAL·1 |
| 2025-07-28 | 5 | hiring | ION | IonQ appoints Marco Pistoia, former JPMorgan quantum head, as SVP of Industry RelationsCAL·1 |
| 2025-07-21 | 5 | hiring | ION | IonQ hires Rick Muller, ex-Sandia and ex-IARPA quantum leader, as VP of Quantum SystemsCAL·1 |
| 2025-07-21 | 4 | product | SC | Amazon Braket makes IQM's 54-qubit Emerald superconducting QPU generally availableCAL·1 |
| 2025-07-17 | 5 | research | SC | IBM and Moderna detail quantum-classical simulation of a 60-nucleotide mRNA secondary structure on 80 qubitsCAL·1 |
| 2025-07-16 | 6 | benchmark | SC | Rigetti reports 99.5% median two-qubit gate fidelity on a modular 36-qubit system, halving its two-qubit error rateCAL·1 |
| 2025-07-15 | 5 | partnership | — | Quantum Computing Inc. secures first U.S. commercial cybersecurity sale via ~$332K purchase order from a Top-5 U.S. bankCAL·1 |
| 2025-07-15 | 6 | m&a | — | IonQ completes acquisition of Capella Space to build a space-based quantum key distribution networkCAL·1 |
| 2025-07-14 | 5 | share_action | — | SEALSQ prices $60M registered direct offering at a premium to fund its post-quantum roadmapCAL·1 |
| 2025-07-14 | 4 | hiring | ION | IonQ appoints Paul T. Dacier as Chief Legal Officer and Corporate SecretaryCAL·1 |
| 2025-07-09 | 5 | partnership | ION | IonQ named primary quantum partner as South Korea's KISTI secures government funding for a National Quantum Computing Center of ExcellenceCAL·1 |
| 2025-07-07 | 7 | share_action | ION | IonQ prices $1.0 billion equity offering, the largest single-institution common-stock investment in quantum-industry historyCAL·1 |
| 2025-07-03 | 5 | funding | — | Qedma raises $26M Series A with IBM participation for quantum error-mitigation softwareCAL·1 |
| 2025-07-01 | 7 | share_action | SC | D-Wave Quantum completes $400M at-the-market equity offering, lifting cash to ~$815MCAL·1 |
| 2025-06-24 | 6 | product | SC | IBM and RIKEN deploy first IBM Quantum System Two outside the U.S., co-located with FugakuCAL·1 |
| 2025-06-23 | 6 | share_action | PHOT | Quantum Computing Inc. prices $200 million private placement of common stockCAL·1 |
| 2025-06-20 | 5 | hiring | PHOT | Quantum Computing Inc. CFO Christopher Boehmler departs; Christopher Roberts returns as CFOCAL·1 |
| 2025-06-19 | 5 | benchmark | ION | IonQ and Kipu Quantum report record protein-folding and optimization results on Forte systemsCAL·1 |
| 2025-06-17 | 5 | funding | — | SEALSQ board approves $10 million investment in WISeSat.Space for a 9% stakeCAL·1 |
| 2025-06-10 | 6 | research | SC | IBM details Starling roadmap to a large-scale fault-tolerant quantum computer by 2029CAL·1 |
| 2025-06-10 | 6 | share_action | SC | D-Wave establishes up-to-$400 million at-the-market equity sales agreementCAL·1 |
| 2025-06-09 | 8 | m&a | ION | IonQ agrees to acquire Oxford Ionics in $1.075 billion mostly-stock dealCAL·1 |
| 2025-06-04 | 4 | share_action | SC | D-Wave Quantum reports ~$15.3 million in additional warrant-exercise proceedsCAL·1 |
| 2025-06-03 | 4 | share_action | SC | D-Wave Quantum files universal Form S-3 shelf registrationCAL·1 |
| 2025-05-30 | 5 | m&a | — | IonQ closes all-stock acquisition of Lightsynq, issuing about 12.4M sharesCAL·1 |
| 2025-05-29 | 6 | share_action | SC | Rigetti establishes up to $350M at-the-market equity facility with Jefferies to fund quantum scale-upCAL·1 |
| 2025-05-29 | 5 | research | SC | D-Wave publishes 'Blockchain with Proof of Quantum Work' and runs distributed annealing across four cloud systemsCAL·1 |
| 2025-05-27 | 4 | m&a | — | SEALSQ signs share purchase agreement to acquire 100% of ASIC specialist IC'ALPS for EUR 12.5M plus earn-outCAL·1 |
| 2025-05-22 | 4 | earnings | — | Arqit Quantum reports first-half FY2025 results with $67,000 revenue amid delayed enterprise contractCAL·1 |
| 2025-05-20 | 7 | product | SC | D-Wave announces general availability of its sixth-generation 4,400-qubit Advantage2 annealing quantum computerCAL·1 |
| 2025-05-14 | 6 | partnership | ION | Quantinuum and Qatar's Al Rabban Capital launch joint venture backed by up to $1B in planned quantum investment over a decadeCAL·1 |
| 2025-05-12 | 4 | earnings | SC | Rigetti reports Q1 2025 results; GAAP net income on warrant remeasurement despite lower revenue, EPS missesCAL·1 |
| 2025-05-12 | 6 | funding | — | Classiq raises $110M Series C led by Entrée Capital, the largest quantum-software funding round to dateCAL·1 |
| 2025-05-08 | 5 | hiring | PHOT | Quantum Computing Inc. promotes Milan Begliarbekov to COO and Pouya Dianat to CROCAL·1 |
| 2025-05-08 | 6 | m&a | — | IonQ announces intention to acquire Lightsynq Technologies to accelerate quantum networking and scalingCAL·1 |
| 2025-05-08 | 6 | m&a | — | IonQ announces intention to acquire Capella Space to build a space-based quantum key distribution networkCAL·1 |
| 2025-05-08 | 6 | earnings | SC | D-Wave reports record Q1 2025 revenue of $15.0M, up 509% YoY, on first Advantage system saleCAL·1 |
| 2025-05-07 | 3 | earnings | — | SkyWater Technology reports Q1 2025 results, EPS -$0.08 vs -$0.13 estimateCAL·1 |
| 2025-05-07 | 6 | earnings | ION | IonQ reports Q1 2025 revenue of $7.6M above guidance midpoint, beats EPS, reaffirms 2025 revenue outlookCAL·1 |
| 2025-05-07 | 5 | compensation | SC | D-Wave amends employment agreements for CFO John Markovich and another officer, effective 2025-05-06CAL·1 |
| 2025-05-07 | 3 | earnings | — | Coherent reports fiscal-Q3 2025 results, EPS $0.91 vs $0.86 estimateCAL·1 |
| 2025-05-06 | 3 | earnings | — | GlobalFoundries reports Q1 2025 results, EPS $0.34 vs $0.29 estimateCAL·1 |
| 2025-05-06 | 6 | product | — | Cisco unveils prototype Quantum Network Entanglement Chip and opens Cisco Quantum LabsCAL·1 |
| 2025-05-05 | 4 | share_action | — | SEALSQ prices $20.0M registered direct offering of 10M ordinary shares at $2.00 to fund PQC semiconductor build-out and IC'ALPS acquisitionCAL·1 |
| 2025-04-30 | 5 | funding | SC | Rigetti closes $35M strategic equity investment from Quanta ComputerCAL·1 |
| 2025-04-28 | 5 | funding | SC | Rigetti granted $5.48M Air Force Office of Scientific Research award to develop ABAA chip-fabrication technologyCAL·1 |
| 2025-04-28 | 5 | funding | SC | IBM pledges $150B U.S. investment over five years, including $30B for mainframe and quantum-computer manufacturing and R&DCAL·1 |
| 2025-04-25 | 5 | partnership | — | IonQ announces $22M deal with EPB to deploy a Forte Enterprise system and establish Chattanooga as the first U.S. quantum computing & networking hubCAL·1 |
| 2025-04-23 | 5 | partnership | ION | IonQ signs flagship distributor agreement with Toyota Tsusho to enter the Japanese marketCAL·1 |
| 2025-04-22 | 5 | funding | SC | Rigetti wins £3.5M Innovate UK Quantum Missions pilot to advance real-time error correction and upgrade NQCC system to 36 qubitsCAL·1 |
| 2025-04-16 | 4 | governance | PHOT | Quantum Computing Inc. CEO William McGann to retire; board names Yuping Huang interim CEOCAL·1 |
| 2025-04-16 | 4 | partnership | — | IonQ signs non-binding MoU with Intellian to explore quantum networking for satellite communicationsCAL·1 |
| 2025-04-04 | 6 | funding | — | SandboxAQ closes $450M Series E with new backing from Nvidia, Google and BNP Paribas at a $5.75B valuationCAL·1 |
| 2025-03-31 | 3 | earnings | PHOT | Quantum Computing Inc. reports immaterial FY2024 revenue amid securities class actionsCAL·1 |
| 2025-03-31 | 5 | partnership | OTH | Ford Otosan deploys D-Wave hybrid-quantum scheduling application in productionCAL·1 |
| 2025-03-13 | 5 | partnership | SC | IBM and the Basque Government announce plan to install Europe's first IBM Quantum System TwoCAL·1 |
| 2025-03-13 | 4 | earnings | OTH | D-Wave reports flat FY2024 revenue but record bookings up 502% in Q4CAL·1 |
| 2025-03-12 | 7 | benchmark | OTH | D-Wave reports peer-reviewed quantum supremacy on a materials-simulation problemCAL·1 |
| 2025-03-10 | 6 | share_action | ION | IonQ raises ~$372.6M via at-the-market offering, then terminates the programCAL·1 |
| 2025-03-05 | 3 | earnings | SC | Rigetti reports FY2024 revenue of $10.8M and a wide EPS missCAL·1 |
| 2025-02-27 | 5 | m&a | — | SEALSQ enters exclusive negotiations to acquire French ASIC house IC'ALPSCAL·1 |
| 2025-02-27 | 6 | partnership | SC | Rigetti and Quanta Computer enter superconducting-quantum collaboration with $35M PIPECAL·1 |
| 2025-02-26 | 5 | earnings | ION | IonQ reports Q4/FY2024: revenue $43.1M, up 95% YoY; loss widens vs estimatesCAL·1 |
| 2025-02-26 | 5 | governance | ION | IonQ names Niccolo de Masi CEO; Toledano joins board; Chapman becomes executive chairCAL·1 |
| 2025-02-26 | 6 | m&a | — | IonQ to acquire Geneva-based ID Quantique for ~CHF 140M (~$155M) and forge SK Telecom quantum partnershipCAL·1 |
| 2025-02-24 | 3 | earnings | — | SkyWater Technology reports Q4 2024 EPS of $0.04, beating estimateCAL·1 |
| 2025-02-21 | 4 | product | ION | IonQ unveils extreme-high-vacuum ion-trap package prototype for compact room-temperature systemsCAL·1 |
| 2025-02-19 | 6 | research | TOPO | Microsoft unveils Majorana 1, claimed first topological-qubit quantum processorCAL·1 |
| 2025-02-11 | 3 | earnings | — | GlobalFoundries reports Q4 2024 EPS of $0.46, narrowly above estimateCAL·1 |
| 2025-02-10 | 5 | partnership | ION | IonQ partners with General Dynamics IT to target US government and defense quantum workCAL·1 |
| 2025-02-03 | 3 | earnings | — | SEALSQ posts preliminary FY2024 revenue ~$11M, down ~63% amid PQC pivotCAL·1 |
| 2025-01-30 | 5 | partnership | — | Telefonica Tech and IBM sign quantum-safe technology collaborationCAL·1 |
| 2025-01-27 | 4 | partnership | ION | IonQ renews customer agreement with UAE's Technology Innovation InstituteCAL·1 |
| 2025-01-23 | 4 | partnership | ION | IonQ signs non-binding quantum MOU with Busan Metropolitan CityCAL·1 |
| 2025-01-15 | 5 | partnership | OTH | D-Wave names Carahsoft master government aggregator for public-sector distributionCAL·1 |
| 2025-01-13 | 5 | partnership | — | IonQ announces USD 21.1 million AFRL secure-quantum-networking projectCAL·1 |
| 2025-01-07 | 5 | funding | PHOT | Quantum Computing Inc. prices USD 100 million private placementCAL·1 |
| 2025-01-06 | 5 | m&a | — | IonQ completes acquisition of quantum-networking firm QubitekkCAL·1 |