Quantum Software Startup Funding
In our updated market reports, you will find everything you need
SUMMARY
We analyzed every publicly disclosed equity round raised by pure-play and near-pure-play quantum software companies between August 2024 and July 2026, a 24-month window covering every geography. We only kept rounds of $300K or more, excluded hardware-first quantum computer builders, and ended with 15 counted deals across 15 unique companies.
Over this period, fundraising in the quantum software market was not deal-rich, but it was capital-dense. The dataset includes $627M raised from only 15 disclosed equity rounds.
Capital in the quantum software market is highly concentrated. The top deal alone represents 34.3% of all disclosed capital, while the top 3 deals reach 63.8% and the top 5 reach 78.6%.
The median round size was $20.3M, while the average round size was $41.8M. That gap shows how strongly a few large rounds reshape the market’s headline funding picture.
Deal flow was modest across the quantum software market. Over 24 months, the dataset averages roughly 0.6 disclosed deals per month, which means many months had little or no visible funding activity.
Optimization Software leads the market by capital raised, with $215M and 34.3% of the total. But that entire category signal comes from one company, Multiverse Computing.
Quantum Development Tools show a broader capital signal. The category raised $169M across two major rounds, led by Q-CTRL and Classiq, and represents 27.0% of total capital.
Europe is the clear geographic center of gravity in the quantum software market. European companies raised $362.8M across 8 deals, representing 57.9% of capital and 53.3% of deal count.
The quantum software market is more late-stage weighted than early-stage weighted. Series B and Series C rounds together captured $524.5M, or 83.7% of disclosed capital.
Repeat investors are limited. Bullhound Capital / GP Bullhound, Quantonation, and CDP Venture Capital are the only names that clearly appear more than once in counted or relevant disclosed activity.
What are all the funding deals in the quantum software market from August 2024 to July 2026?
The table below lists every disclosed equity round raised by pure-play or near-pure-play quantum software companies between August 2024 and July 2026. We count as quantum software companies those focused on quantum algorithms, development tools, error correction software, simulation, optimization, quantum cloud platforms, security software, or hybrid quantum workflows.
Each row shows the company, what it does, its category, the deal date, the funding stage, the round size, the region, the main investors, and the announcement source.
| Company | What they do | Category | Date | Stage | Deal size | Region | Main investors | Source |
|---|---|---|---|---|---|---|---|---|
| Riverlane | Quantum error correction stack for fault-tolerant quantum computers | Quantum Error Correction Software | Aug 2024 | Series C | $75M | Europe | Planet First Partners | Riverlane |
| QMill | Quantum algorithms for near-term industrial optimization problems | Quantum Algorithms | Sep 2024 | Seed | $4.45M | Europe | Quantonation | QMill |
| Q-CTRL | Quantum infrastructure software for control, performance, and error suppression | Quantum Development Tools | Oct 2024 | Series B | $59M | Asia-Pacific | GP Bullhound | Q-CTRL |
| QunaSys | Quantum algorithms and software for chemistry and industrial simulation | Quantum Simulation Software | Nov 2024 | Series B | $11.2M | Asia-Pacific | Not disclosed in provided dataset | QunaSys |
| BlueQubit | Quantum software-as-a-service platform and emulators for enterprise applications | Quantum Cloud Platforms | Dec 2024 | Seed | $10M | North America | Not disclosed in provided dataset | BlueQubit |
| QuSecure | Post-quantum cryptography and crypto-agility enterprise software | Quantum Security Software | Feb 2025 | Series A | $28M | North America | Two Bear Capital; Accenture | QuSecure |
| QPerfect | Quantum emulation, design automation, and fault-tolerant control software | Quantum Simulation Software | Apr 2025 | Unknown | $2.3M | Europe | BTQ Technologies | PR Newswire |
| Classiq | High-level quantum software development platform and circuit synthesis tools | Quantum Development Tools | May 2025 | Series C | $110M | Middle East | Entrée Capital | Classiq |
| Multiverse Computing | Quantum-inspired optimization and AI model compression software | Optimization Software | Jun 2025 | Series B | $215M | Europe | Bullhound Capital; Quantonation; CDP Venture Capital | Multiverse Computing |
| QEDMA | Quantum error suppression, mitigation, and correction software | Quantum Error Correction Software | Jul 2025 | Series A | $26M | Middle East | IBM | PR Newswire |
| Phasecraft | Quantum algorithms for materials, chemistry, energy, and optimization | Quantum Algorithms | Sep 2025 | Series B | $34M | Europe | Plural; Playground Global; Novo Holdings; Quantonation | Phasecraft |
| Haiqu | Quantum operating system and software for practical quantum computing | Hybrid Quantum Workflows | Jan 2026 | Seed | $11M | Europe | Primary Venture Partners | Tech.eu |
| Project Eleven | Post-quantum cryptography software for blockchain and digital assets | Quantum Security Software | Jan 2026 | Series A | $20M | North America | Castle Island Ventures | CoinDesk |
| Qoro Quantum | Hybrid quantum-classical orchestration software | Hybrid Quantum Workflows | Apr 2026 | Seed | $0.75M | Europe | Ada Ventures | The Quantum Insider |
| Algorithmiq | Quantum algorithms and noise-mitigation software for scientific applications | Quantum Algorithms | May 2026 | Series B | $20.3M | Europe | United Ventures; CDP Venture Capital | Algorithmiq |
OUR METHODOLOGY TO BUILD THIS TRACKER
We built this quantum software funding tracker by reviewing every publicly disclosed equity round raised by pure-play and near-pure-play quantum software companies between August 2024 and July 2026. A company counts as pure-play when more than 80% of its activity is dedicated to quantum software, quantum algorithms, quantum development tools, error correction software, simulation software, optimization software, cloud platforms, security software, or hybrid quantum workflows.
We applied four filters to build the dataset. First, we only included equity rounds, so grants, credit lines, debt, and acquisitions without primary equity funding are excluded. Second, we only counted rounds of $300K or more. Third, we excluded hardware-first quantum computer builders, component suppliers, and broader adjacent companies unless the product was built specifically for quantum software workflows. And fourth, every entry had to be confirmed by a direct company announcement, a press release, or a tier-1 media report, with the source URL preserved for every row.
We excluded two Classiq extension announcements where the exact deal size was not publicly disclosed, because including them would distort every dollar-based metric in the quantum software market. Those extensions matter qualitatively, but they do not appear in the table or in any total. The final dataset contains 15 disclosed deals across 15 unique companies, and every average, median, share, and concentration ratio is computed on that disclosed sample.
How active has fundraising been in the quantum software market?
As of July 2026, fundraising in the quantum software market has been modest on deal count but meaningful on dollars. Over the past 24 months, companies raised 15 disclosed equity rounds and $627M combined, which works out to roughly 0.6 deals per month.
This is not a high-volume venture market. The 15 disclosed deals came from 15 unique companies, so the dataset shows breadth across names but not repeated public fundraising at scale.
The dollar signal is stronger than the deal signal. Average round size is $41.8M, while the median round size is $20.3M, which means a few large rounds raise the apparent market size.
Monthly activity should be read carefully. Over a 24-month period, a single large announcement can reshape the annual picture, and several months may show no qualifying public equity round at all.
How concentrated has fundraising been in the quantum software market?
As of July 2026, fundraising in the quantum software market is extremely concentrated. Over the past 24 months, the largest deal represents 34.3% of disclosed capital, the top 3 deals reach 63.8%, and the top 5 reach 78.6%.
The largest deal is Multiverse Computing’s $215M Series B. That single round is larger than the entire combined capital raised by Quantum Algorithms, Quantum Security Software, Quantum Simulation Software, Hybrid Quantum Workflows, and Quantum Cloud Platforms.
The top 3 deals are Multiverse Computing, Classiq, and Riverlane. Together, they make the market look much larger than the median company experience would suggest.
This concentration means the quantum software market should not be interpreted through headline totals alone. A better reading starts by asking which companies drove the total, and whether those companies represent broad adoption or isolated category leaders.
How much of the quantum software funding signal is driven by outliers?
As of July 2026, most of the funding signal in the quantum software market is driven by outliers. Over the past 24 months, only 4 of 15 deals were above $50M, but those 4 deals represented 73.2% of total disclosed capital.
Rounds above $100M were even rarer. Only Multiverse Computing and Classiq crossed that threshold, yet together they account for $325M, or 51.8% of all disclosed capital.
The market looks very different when large rounds are removed. Total capital raised excluding rounds above $50M falls to $168M, which shows how dependent the headline number is on a small set of scale rounds.
The median round of $20.3M is therefore a better guide to the typical company than the $41.8M average. The average is useful, but it mainly describes the power-law shape of the dataset.
Is the quantum software market broad with many targets, or narrow with few fundable companies?
As of July 2026, the quantum software market is narrow rather than broad. Over the past 24 months, the dataset includes only 15 disclosed deals and 15 unique companies, so the visible opportunity set remains small.
The category count looks broad at first because the dataset spans algorithms, development tools, error correction, simulation, optimization, security, cloud platforms, and hybrid workflows. But most categories contain only one or two disclosed deals.
Quantum Algorithms is the most active category by deal count, with 3 deals. Six other categories have either one or two deals, which means no segment has yet built a deep public financing pipeline.
This is typical of a market still tied to technical validation and hardware readiness. Many companies can form around promising software layers, but only a few have raised venture-scale capital.
Is quantum software mostly an early-stage formation market or a late-stage scaling market?
As of July 2026, the quantum software market is more late-stage weighted than early-stage weighted. Over the past 24 months, Series B and Series C rounds captured $524.5M, or 83.7% of disclosed capital.
Seed and Series A activity is still present. Seed rounds account for 4 deals and Series A rounds account for 3 deals, which together represent 46.7% of disclosed deal count.
The dollar balance tells a different story. Seed and Series A rounds together raised only $100.2M, or 16.0% of disclosed capital, while Series B alone raised $339.5M.
This means company formation is active but not capital-heavy. Investors are writing the largest checks only when companies appear to have credible platform, infrastructure, or ecosystem positioning.
Which categories attract the most investor attention in quantum software?
As of July 2026, investor attention in the quantum software market is split between deal diversity and capital intensity. Over the past 24 months, Quantum Algorithms led by deal count with 3 deals, while Optimization Software led by capital with $215M.
Optimization Software holds 34.3% of all disclosed capital, but that signal comes from one deal: Multiverse Computing. It should be read as a single-company validation, not broad category depth.
Quantum Development Tools have a stronger multi-company signal. Q-CTRL and Classiq together raised $169M, giving the category 27.0% of total capital across two sizeable rounds.
Quantum Error Correction Software also attracted meaningful attention. Riverlane and QEDMA together raised $101M, which suggests investors see error correction and mitigation as mandatory layers for future useful quantum computing.
Which categories attract disproportionately large checks in the quantum software market?
As of July 2026, Optimization Software attracts the most disproportionately large checks in the quantum software market. Over the past 24 months, it represented only 6.7% of disclosed deals but 34.3% of disclosed capital, producing a capital share to deal share ratio of 5.14x.
Quantum Development Tools also over-index on check size. The category holds 13.3% of deals and 27.0% of capital, which gives it a ratio of 2.02x.
Quantum Error Correction Software is the only other category above parity. It holds 13.3% of deals and 16.1% of capital, giving it a ratio of 1.21x.
Most other categories under-index on capital. Hybrid Quantum Workflows has 13.3% of deals but only 1.9% of capital, which suggests orchestration middleware is still in formation mode rather than scale mode.
Which geographies matter most for fundraising in the quantum software market?
As of July 2026, Europe matters most for fundraising in the quantum software market. Over the past 24 months, European companies raised $362.8M across 8 deals, representing 57.9% of capital and 53.3% of deal count.
Europe’s leadership is not just a deal-count artifact. It includes the largest deal in the dataset, Multiverse Computing’s $215M Series B, plus meaningful rounds from Riverlane, Phasecraft, Haiqu, Algorithmiq, QMill, and Qoro Quantum.
The Middle East ranks second by capital with $136M, or 21.7% of total funding. That capital comes from only two companies, Classiq and QEDMA, so the region’s signal is concentrated but high-quality.
Asia-Pacific raised $70.2M across two deals, while North America raised $58M across three deals. North America is visible, but its sample is more weighted toward security and early-stage software than large quantum workflow platforms.
Is the quantum software opportunity set broad or concentrated in one hub?
As of July 2026, the quantum software opportunity set is concentrated but not limited to one hub. Over the past 24 months, Europe leads clearly, but the dataset also includes North America, Asia-Pacific, and the Middle East.
Europe has both depth and dollars. It represents more than half of deal count and more than half of capital, making it the main geographic center of gravity in this dataset.
The Middle East has fewer companies but higher average deal size. Its two deals average $68M, driven by Classiq’s $110M Series C and QEDMA’s $26M Series A.
North America’s role is narrower in this dataset. Its 3 deals total $58M, with QuSecure, BlueQubit, and Project Eleven showing activity in security software, cloud platforms, and blockchain-facing post-quantum protection.
Is quantum software a market of small experiments or scaled financings?
As of July 2026, the quantum software market is a mix of small experiments and scaled financings, but the dollars are controlled by scaled rounds. Over the past 24 months, 4 deals above $50M captured 73.2% of disclosed capital.
The size distribution is uneven. There were 3 deals below $5M, 3 deals between $5M and $20M, 5 deals between $20M and $50M, and 4 deals at or above $50M.
This creates a barbell shape. Smaller seed and unknown-stage rounds show continued formation, while the largest Series B and Series C rounds show selective investor conviction around companies that can become infrastructure layers.
The median round size of $20.3M is more grounded than the average round size of $41.8M. The average is pulled upward by Multiverse Computing, Classiq, Riverlane, and Q-CTRL.
Who are the investors that appear the most in quantum software fundraising?
As of July 2026, only a small group of investors appears more than once in quantum software fundraising. Over the past 24 months, Bullhound Capital / GP Bullhound, Quantonation, and CDP Venture Capital are the clearest repeat names in the dataset and related disclosed activity.
Bullhound Capital / GP Bullhound appears in Q-CTRL and Multiverse Computing. That gives it exposure to both quantum infrastructure software and quantum-inspired optimization.
Quantonation appears in QMill, Phasecraft, and Multiverse Computing. Its repeat presence matters because those companies span algorithms, industrial advantage, and optimization software.
CDP Venture Capital appears in Multiverse Computing and Algorithmiq, and also in a Classiq extension that was not counted because the amount was undisclosed. That makes it relevant qualitatively, even where it is not included in dollar totals.
Most other named investors appear only once. This limited investor repetition suggests the quantum software market still lacks a broad base of specialist repeat capital.
INSIGHTS
The insights below come from reviewing every disclosed equity round in the quantum software market between August 2024 and July 2026. They are not row-by-row summaries. They are the reusable patterns that kept showing up across the 15-deal dataset, and they are meant to stay useful when reading any future quantum software funding announcement.
Quantum software is not a deal-rich market, but it is capital-dense. Only 15 counted deals produced $627M of disclosed funding. That means investor conviction exists, but it is concentrated in a small number of companies.
Headline market size is mostly a story about a few category-control assets. The top 3 deals represent 63.8% of disclosed capital. Any top-down reading of the market should therefore start with Multiverse Computing, Classiq, and Riverlane.
The gap between the median and average round is a useful warning signal. The median round is $20.3M, while the average is $41.8M. The market’s apparent maturity is partly created by a few very large raises.
Series B is the main capital stage in quantum software. Series B rounds captured $339.5M, or 54.1% of total capital. Investors are not just funding scientific formation; they are backing companies that may become commercial infrastructure layers.
Seed activity exists, but it is financially lightweight. Seed rounds represent 26.7% of deals but only 4.2% of capital. That shows company formation is alive, but most new entrants remain small.
The market has a visible validation gap between early formation and scale capital. Several companies raise seed or Series A checks, but the largest dollars arrive only after stronger platform credibility emerges. The hard part is moving from technical promise to commercial scale.
Europe is the strongest geographic signal in this dataset. It holds 53.3% of deals and 57.9% of capital. Quantum software is one deeptech layer where Europe appears to be a financing hub, not only a research base.
North America is visible but underweight on capital. It has 20.0% of deals but only 9.3% of capital. In this sample, U.S. activity is more weighted toward security and early-stage platforms than large workflow infrastructure rounds.
The Middle East punches above its deal count. It has only 13.3% of deals but 21.7% of capital. Classiq and QEDMA make the region look more like a concentrated software infrastructure cluster than a broad formation market.
Optimization Software looks dominant, but the signal is narrow. The category represents 34.3% of capital from only one deal. Its apparent leadership is really a Multiverse Computing signal.
Quantum Development Tools show a healthier category signal. Q-CTRL and Classiq together raised $169M across two regions and product positions. That makes development tooling more broadly validated than one-company categories.
Quantum Error Correction Software has strong strategic inevitability. Riverlane and QEDMA together raised $101M. If quantum hardware scales, error correction and mitigation become mandatory rather than optional software layers.
Hybrid Quantum Workflows remain early despite visible formation. The category has 13.3% of deals but only 1.9% of capital. Investors are exploring orchestration software, but they are not yet underwriting it at scale.
Quantum Simulation Software looks undercapitalized relative to its conceptual importance. It has the same number of deals as several other categories, but only 2.2% of capital. Scientific usefulness has not yet translated into large disclosed rounds.
Quantum Security Software follows a different demand clock. Post-quantum cryptography demand is driven by migration urgency, not by quantum hardware readiness. That makes it commercially nearer-term but less tied to the core compute-software funding cycle.
Investors appear to favor software that makes quantum hardware more usable. Development tools and error correction together represent 43.1% of disclosed capital. The strongest funding signals attach to bottleneck-reducing layers rather than broad end-user applications.
The market is moving away from vague quantum promise. Investors reward companies tied to measurable improvements such as error correction, noise mitigation, control, circuit optimization, and model compression. Specific technical leverage matters more than category language.
Capital share to deal share ratios separate strong categories from weak ones. Only Optimization Software, Quantum Development Tools, and Quantum Error Correction Software sit above 1.0. Those are the only categories with above-average dollar intensity.
Strategic investors matter qualitatively, even when exact extension sizes are undisclosed. Classiq’s undisclosed extensions brought in major strategic names, but they should not affect quantitative totals without exact amounts. The distinction between qualitative signal and measurable funding is important.
Repeat investor coverage is still thin. Only a few names, including Bullhound, Quantonation, and CDP, appear more than once. That suggests the market has specialist champions, but not yet a broad specialist capital base.
The best diligence rule is to weight partner validation above category claims. The largest rounds cluster around companies that can claim measurable integration with the quantum roadmap. In quantum software, credibility comes from proving where the software removes a real bottleneck.
Riverlane (Series C), QMill (Seed), Q-CTRL (Series B expansion), QunaSys (Series B), BlueQubit (Seed), QuSecure (Series A), PR Newswire (QPerfect), Classiq (Series C), Multiverse Computing (Series B), PR Newswire (QEDMA), Phasecraft (Series B), Tech.eu (Haiqu), CoinDesk (Project Eleven), The Quantum Insider (Qoro Quantum), Algorithmiq (Series B), Classiq (SoftBank extension), Classiq (strategic extension)
Related blog posts
- An overview of funding deals in the quantum software market
- Who has raised the most money in the quantum software market?
- Who are the most valuable companies in the quantum software market?
