Quantum Funding Timeline
Every tracked financing event across the global quantum industry — newest first. Events marked ⚡ auto were collected automatically from daily news monitoring and are pending human verification; unmarked events have been reviewed against named public sources. Subscribe via RSS to get each new round.
For cumulative totals per company rather than individual deals, see the most funded quantum companies leaderboard.
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Atom ComputingGovernment funding (CHIPS Act LOI)undisclosed
Atom Computing appears in the November 2026 CHIPS Act letter-of-intent list from the U.S. Department of Commerce, months after a separately reported $300M private raise. The two entries answer different questions: the letter identifies neutral atoms as a domestic capability worth supporting, while the private round says something about what investors would fund. No price, tranche schedule or equity stake is attached to this notice, so it adds zero to the funding total and is kept only to show where policy and private capital overlap.
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D-Wave QuantumGovernment funding (CHIPS Act LOI)undisclosed
Unlike the other four names in the November 2026 CHIPS correspondence, D-Wave is already a listed company with two public-market financings in our ledger. A non-binding letter of intent therefore does not change its access to capital; it mainly signals that annealing and its gate-model expansion are inside the policy perimeter. We record the notice at month precision with no amount, and we do not treat it as a precursor to a priced round.
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InfleqtionGovernment funding (CHIPS Act LOI)undisclosed
Infleqtion's inclusion in the CHIPS letter-of-intent list follows an announced but unpriced SPAC merger in 2025, so this row is the second non-cash capital-market event for the company in our dataset. Its neutral-atom sensing work is the likely policy interest, but the notice itself states no award value. The editorial reason to keep it is transparency: readers comparing the company with funded peers should see that two headline events contributed no disclosed cash.
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PsiQuantumGovernment funding (CHIPS Act LOI)undisclosed
For PsiQuantum, the November 2026 letter of intent is a siting story rather than a funding story: the company had already announced utility-scale photonic sites in Brisbane and Chicago and closed a $1B Series E in 2025. A CHIPS-related notice is relevant to which domestic fabrication partnerships are encouraged, not to the company's cash balance. Our ledger shows it with an empty amount column and a month-precision date so it can never be summed with the priced rounds.
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Rigetti ComputingGovernment funding (CHIPS Act LOI)undisclosed
Rigetti's letter of intent sits next to a $350M ATM authorisation in our ledger, which makes the distinction easy to test: one is a drawdown facility a listed company controls, the other a government statement of intent with no scheduled disbursement. Superconducting fabrication access is the plausible policy rationale, but the notice publishes neither a figure nor a milestone. We keep both rows separate and never fold a policy notice into an at-the-market total.
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SpinQSeries D~$140M⚡ auto
A ~$140M Series D closes a visible Chinese financing ladder that started with a 2024 Series B and continued through a pre-IPO round the same spring. For SpinQ, the sequence matters more than any single figure: desktop NMR product revenue and a domestic listing path are different capital stories from cloud-only hardware peers. The amount is auto-collected with one duplicate merged, so we present it as an estimate and link the source.
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Atom ComputingReported raise~$300M⚡ auto
The ~$300M reported raise for Atom Computing is best read beside the CHIPS Act letter of intent recorded later in 2026: one is private capital, the other a policy signal with no priced equity value. Neutral-atom systems moved from physics milestones to deployment commitments in a short window, so a round of this size usually funds infrastructure rather than a single record. A syndicated duplicate was merged and the figure is flagged approximate.
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Origin QuantumReported raise~$420M⚡ auto
A ~$420M reported raise is roughly nine times the RMB-converted B+ round we recorded for Origin Quantum in 2023, a jump large enough that we treat it as an unverified headline rather than a confirmed cumulative total. Chinese-language coverage often bundles credit lines, subsidies and equity into one number, so the methodology keeps this row marked approximate. One syndicated duplicate was merged and the source URL is published.
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QuoblyReported raise~$124M⚡ auto
Two overlapping reports of this ~$124M FD-SOI silicon-spin raise were merged, which is why the surviving row carries a corroborating count rather than a second timeline entry. Quobly is pursuing a foundry-compatible route, so the relevant comparison is with other CMOS-oriented European startups, not with photonic or trapped-ion totals. The figure remains approximate and auto-collected with its source link visible.
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QuantinuumIpo~$1.7B⚡ auto
The ~$1.7B attached to a reported 2026 IPO is the largest single figure in our dataset, and it is public-market proceeds rather than venture capital. Quantinuum had a JPMorgan-led Series B in 2024 and a growth round in 2025; this listing closes a three-year transition from private full-stack developer to public company. Because the report is auto-collected, we show the source URL and keep the amount flagged as approximate until a filing is matched.
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Photonic Inc.Reported raise~$200M⚡ auto
A ~$200M reported raise barely a week after a January figure for the same company is exactly the pattern our publication-layer de-duplication is meant to expose: either two tranches, or one round reported twice. Photonic Inc. builds silicon spin-photon modules, where financing news is often syndicated across outlets. We keep the later, larger report with a corroborating count and flag it as approximate rather than adding both to the total.
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eleQtronSeries a~$61.6M⚡ auto
This ~$61.6M Series A entry from news monitoring overlaps with a priced Series B the same company recorded in 2023, so the apparent stage regression is a data-quality warning rather than a real down-round. We keep it with an auto-collected badge and a merged duplicate count instead of silently deleting it. Readers should treat the amount as reported and check the source URL before citing the stage label.
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Quantum MotionSeries c~$160M⚡ auto
A ~$160M Series C for CMOS-compatible silicon spin qubits is a manufacturing argument as much as a physics one: the pitch is that existing fabs can eventually carry the scaling cost. Quantum Motion is one of several European silicon-spin entries in the same quarter, which is why our regional totals for that period are sensitive to how overlapping reports are de-duplicated. One syndicated duplicate was merged into this row.
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QuantWareReported raise~$164M⚡ auto
A ~$164M reported raise for a superconducting QPU foundry service is notable because QuantWare sells fabrication access to other hardware companies rather than a complete machine. That makes it a supply-layer entry whose capital should not be read as a bet on one qubit modality. Two overlapping reports from the same news window were merged here, and the surviving figure remains approximate and auto-collected.
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SpinQPre-ipo~$84M⚡ auto
A ~$84M pre-IPO round is a different instrument from the company's earlier Series B: it is raised against an expected listing, so the pricing logic is closer to public markets. One syndicated duplicate of this announcement was merged. For SpinQ, the pre-IPO label also connects to the larger Series D reported in the same quarter, which is why our de-duplication keeps both as separate dated events rather than collapsing them.
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PasqalSpac~$2B valuation⚡ auto
An announced SPAC with no priced amount is a status change, not new capital. Pasqal had a priced Series B in 2023, so this entry tells readers that a European neutral-atom company was testing the public route while grants and private funding continued in parallel. We deliberately leave the amount column empty rather than copying a valuation from unrelated coverage.
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Photonic Inc.Reported raise~$131M⚡ auto
A ~$131M reported raise for silicon spin-photon modules sits in the North America cohort rather than the US one, which is a reminder that our region labels follow company domicile, not technology clusters. Photonic Inc. is building distributed optically linked modules, a capital-intensive architecture. The figure is auto-collected with a source link and no named investors, so we publish it as an estimate and do not infer a lead.
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Nu QuantumReported raise~$60M⚡ auto
This ~$60M figure comes from news monitoring and carries an approximate flag, with one near-duplicate report of the same round merged into it. Nu Quantum builds networking components for quantum communication, a supply-layer business whose funding scale is far below the computing cohort. It is marked auto-collected and not yet manually reviewed, so the amount is published as a lower-bound estimate with its source link visible.
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Quantum ArtSeries a~$100M⚡ auto
An auto-collected ~$100M Series A from news monitoring, with a syndicated duplicate report merged. Quantum Art works on photonic computing in the Middle East, a region where our dataset has few priced rounds, so this row materially changes the regional total. It should be read as a reported figure: we expose the source URL and the auto-collected badge instead of implying a confirmed filing.
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IQM Quantum ComputersSeries B~$320M
The ~$320M Series B roughly doubles the size of the company's own A2 extension from 2022, which is a cleaner signal of escalating European hardware ambition than any cross-company comparison. IQM Quantum Computers sells full systems to research infrastructure buyers, so a larger B round funds delivery capacity as much as chip development. Our source is MIT QIR Insights rather than a company press release, giving the entry an independent citation.
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PsiQuantumSeries E~$1B
BlackRock returned as lead on a ~$1B Series E, with NVIDIA and other reported participants, making this the largest priced private round in our ledger. Four years after the Series C, PsiQuantum had announced utility-scale sites in Brisbane and Chicago; the money is therefore tied to facilities and foundry partnerships, not to a qubit-count milestone. Because the syndicate is only partially reported, we name the confirmed participants and leave the rest unattributed.
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QuantinuumGrowth round~$600M
A ~$600M growth round without a Series letter usually signals an extension into commercial scale rather than a new technology milestone. For Quantinuum, which sells hardware plus software and services, that label fits a company broadening distribution after its 2024 Series B. Reuters is the cited source, and the row sits in the same quarter as the largest photonic raise, which is why 2025 dominates the dataset's annual concentration.
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IonQPublic equity offering~$1B
A ~$1B public equity offering is one of the largest single rows in the whole dataset, and it is balance-sheet cash raised from public markets rather than a priced venture round. IonQ had already listed via SPAC in 2021, so this offering is a follow-on that changes the denominator for every comparison with private trapped-ion peers. SEC filing coverage is the cited source, which is why the confidence flag is firmer than for press-reported rounds.
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D-Wave QuantumATM program~$400M
An at-the-market programme of ~$400M is an authorisation to issue shares over time, not a single cash injection on one date. For D-Wave Quantum, which already had a smaller equity offering earlier in 2025, the ATM explains why headline figures can look duplicated. We store the programme total with its announcement date and explicitly warn against summing it with the offering as two independent rounds.
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Rigetti ComputingATM program~$350M
The ~$350M ATM authorisation is drawn down in tranches, so the useful number for a ranking is the programme size, not an imagined closing date. Rigetti Computing builds superconducting processors, where fabrication commitments are lumpy; an ATM gives a listed company flexibility that a private Series round does not. Our ledger keeps this separate from venture capital and marks it as public-market financing.
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Horizon Quantum ComputingSPAC merger (announced)~$565M valuation
An announced merger with dMY Squared Technology Group places Horizon Quantum Computing in the small group of Asia-Pacific quantum entries seeking a public listing. Its product is software development tooling rather than hardware, which is why an undisclosed SPAC amount is not a missing data point but a different kind of event altogether. We keep the row to make the region's capital-market activity visible without inventing a number.
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SandboxAQLate-stage round~$450M
A late-stage ~$450M round three years after the Alphabet spin-out shows the company raising again on its own commercial story rather than on parent-company capital. SandboxAQ remains one of the few software-led rows in a hardware-dominated ranking, so its inclusion shifts the median more than the total. TechCrunch is the cited source; the round label is late-stage rather than a priced Series letter.
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InfleqtionSPAC merger (announced)~$1.8B valuation
This is an announced SPAC merger with Churchill Capital Corp X and no priced cash amount in the disclosure we track. Its editorial value is as a status marker: Infleqtion was pursuing a public route while still developing neutral-atom sensing products, so the entry should not be added to any funding total. Only a completed transaction with stated proceeds would change the ledger.
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Alice & BobSeries B~$105M
Cat qubits change the error-correction cost model by making certain errors intrinsically rarer, which is why this ~$105M Series B should be read as a physics-architecture bet rather than a capacity expansion. Alice & Bob is one of the larger European first institutional rounds in our dataset, but its superconducting platform is not directly comparable with trapped-ion rows of similar size. Sifted's coverage is our cited source; no valuation was disclosed.
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D-Wave QuantumEquity offering~$150M
An equity offering of ~$150M is public-market cash, and for D-Wave Quantum it sits alongside a much larger ATM programme later in the same year. Because annealing hardware has been commercially sold for years, this financing is closer to working capital for a listed vendor than to startup runway. Our method keeps public-market rows in the total but refuses to treat them as priced venture rounds.
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QuEra ComputingSeries B~$230M
The ~$230M Series B for a neutral-atom company arrived in the same window as several other large computing rounds, which is why the technique's share of tracked capital jumps around 2025. QuEra Computing works on both analog simulation and gate-model operation, so one financing covers two product narratives. TechCrunch is the cited source and no lead investor is named, so we do not attach a syndicate to the row.
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Q.ANTSeries A~$75M
This ~$75M Series A funds an analog photonic NISQ approach, a deliberately different bet from the fault-tolerant photonic programmes that dominate the largest rows. Q.ANT is aiming at near-term industrial workloads, so the appropriate comparison is with other analog or special-purpose machines rather than with universal gate-model funding totals. The round is company-announced and carries no named lead investor in our sources.
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Nord QuantiqueSeries B~$44M
A ~$44M Series B for bosonic superconducting qubits is a hardware-efficiency bet: the approach tries to reduce the physical-qubit overhead of error correction rather than scale up fabrication first. That makes the round hard to compare with a similarly sized raise for a company building larger processors. Nord Quantique is our smallest North American disclosed hardware row outside the United States, which is why the regional median moves noticeably when it is included.
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planqcSeries A + grants~$55M
This ~$55M entry explicitly bundles a Series A with grants, so it is a mixed cash instrument rather than a single priced round. planqc builds neutral-atom arrays using existing semiconductor supply chains; the grant component reflects European public programmes that rarely appear in US-led funding trackers. We record the combined figure because that is how it was announced, but the methodology warns against reading the whole number as equity investment.
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RiverlaneSeries C~$75M
A ~$75M Series C for error-correction and control systems is a bet on the software layer that becomes valuable only when processors grow. Riverlane is therefore a leading indicator in this ledger: its financing tends to track industry-wide qubit scaling rather than one machine's roadmap. UK press coverage supplies the figure, and we mark it as disclosed rather than filing-confirmed.
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QuantinuumSeries B~$300M
JPMorgan Chase led this ~$300M Series B, a notable example of a financial institution taking a lead position in full-stack trapped-ion hardware. Quantinuum combines processors with a commercial software and services business, so a single financing supports two very different cost structures. Our ledger keeps the amount as one row but flags that its disclosed total is less directly comparable with pure hardware vendors.
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SpinQSeries B~$42M
The ~$42M Series B is part of a multi-round Chinese run that also includes a later pre-IPO and Series D, which makes SpinQ one of the few companies in our dataset with a visible financing ladder rather than a single headline. Its desktop NMR instruments generate product revenue earlier than cloud-only hardware peers. Figures come from Chinese tech media and are stored as approximations, so the ladder shows direction more reliably than precise year-on-year growth.
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eleQtronSeries B~$58M
A ~$58M Series B for a trapped-ion company that uses microwave rather than laser gate control is a bet on a cheaper control plane, not on a higher qubit count. That technical choice is why the round belongs in a separate considerations bucket from laser-driven ion peers. The figure comes from a company announcement, so it is disclosed but not independently filing-verified.
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Boson QuantumSeries A~$14M
The ~$14M Series A for a coherent Ising machine is the smallest priced round in our China computing cohort. Specialised annealer-style hardware has a narrower buyer set than general gate-model systems, so a modest first round signals a different go-to-market rather than weak demand. Chinese media reports give no investor names, so the row is marked as reported and excluded from any lead-investor analysis.
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Origin QuantumSeries B+~$45M
This ~$45M B+ round is described in Chinese coverage as a mix of state-backed and private funds, a structure that has no clean equivalent in a Western venture round. Origin Quantum builds superconducting chips and the control stack around them, so the money supports both fabrication access and system integration. Because the original figure is RMB-denominated, we convert at an approximate rate and treat it as a lower bound rather than a precise USD equivalent.
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China Telecom Quantum GroupState capital injection (registered capital)~$420M
~$420M of registered capital from China Telecom is a state parent capitalising a subsidiary, not a priced external investment. We keep it visible because state capital is the central financing mechanism for China's quantum network build-out, but the number is a balance-sheet authorisation and carries no valuation. Comparing it directly with a US venture round of the same size would be misleading, which is why the methodology separates state capital from priced equity.
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PasqalSeries B~$110M
A ~$110M Series B for a neutral-atom platform came before the modality's later wave of deployment-linked raises, so this row is useful as a baseline for how quickly capital intensity in the segment changed. Pasqal also draws on European public grants; those are outside this ledger. The investor syndicate is not named in the coverage we cite, so we do not infer a lead investor from the round size.
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QbloxSeries A~$26M
At ~$26M, this Series A is one of the smaller disclosed entries, and that is informative: Qblox sells control electronics to other quantum groups, a component business that scales with customer count rather than with fab capex. A modest first institutional round is consistent with that model. The figure is company-announced rather than filing-backed, so our confidence flag stays conservative.
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Quantum MachinesGrowth round~$75M
This ~$75M growth round funds control and orchestration electronics, a layer that every qubit modality needs but that rarely appears in qubit-count comparisons. Quantum Machines is one of the few Middle East entries in our dataset with a disclosed cash figure, which makes it an anchor for a region where most rows are small or undisclosed. A growth-stage label also implies existing commercial revenue rather than a first prototype.
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IQM Quantum ComputersSeries A2~$135M
An A2 extension of ~$135M usually tops up an existing round rather than reopening a priced negotiation, which is why we store it as a distinct dated event instead of folding it into the earlier A round. IQM Quantum Computers sells complete superconducting systems to research-infrastructure buyers, so revenue and venture capital arrive on different clocks. European totals that include grants and procurement look larger than this ledger for exactly that reason.
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SandboxAQSpin-out financing~$500M
The ~$500M here is spin-out financing associated with Alphabet, which is a different instrument from an external venture round and should not be read as a market price for the company. SandboxAQ sells AI and quantum-adjacent algorithm software, so its capital intensity is structurally lower than the hardware rows that dominate this ranking. That difference is why we flag it in the methodology: mixing spin-out capital with priced rounds inflates software entries relative to fab-building peers.
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Turing QuantumPre-Series A~$45M
A Pre-Series A of ~$45M is an early-stage ticket in our China cohort, and the round label matters more than the headline number: at this stage capital buys a first photonic prototype and a small engineering team, not production capacity. The investor list is undisclosed in the Chinese reports we track, so we record the amount as reported rather than filing-confirmed and treat the total as a lower bound.
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IonQSPAC listing~$650M
The ~$650M attached to this SPAC listing is transaction proceeds, not a priced venture round, and it is the entry that moved IonQ from a private hardware startup into the public-market cohort. Trapped-ion systems were still sold mostly as cloud access at the time, so a listing changed the funding comparison more than the product roadmap. We keep it here because later equity offerings only make sense against this baseline, but we never add it to a venture-round total.
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CIQTEKSeries B~$45M
This ~$45M Series B sits in the sensing column, where disclosed rounds are far smaller than in computing. CIQTEK works on EPR and diamond magnetometry, selling instruments to laboratories rather than promising a fault-tolerant machine, so the capital is tied to product lines and calibration capacity. The figure comes from Chinese media reports, which is why our confidence flag is lower than for a filing-backed US round of similar size.
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PsiQuantumSeries C~$450M
BlackRock led a ~$450M Series C in mid-2021, an unusually large cheque for a photonic architecture that had not yet shipped a commercial machine. PsiQuantum was already describing utility-scale sites rather than incremental qubit counts, so the money is best read as pre-financing fabrication and facilities. In our ledger it is the earlier of two billion-dollar-class photonic entries; the gap to the later Series E says more about the cash demands of a fab-aligned roadmap than about a repricing of technical risk.
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QuantumCTekSTAR Market IPO~$130M
A July 2020 STAR Market listing rather than a private round: ~$130M is IPO proceeds, so the row carries no venture valuation and belongs in the public-market column. QuantumCTek supplies QKD hardware to carrier and government networks; the flotation shows China's quantum-communication supply chain had a domestic capital-market route years before most Western QKD vendors. Read beside later state-capital entries, this is equity funding for product deployment, not a startup priced by a syndicate.