Radar · Quantum Computing in United States
Best Quantum Computing Companies in United States
The 149 best Quantum Computing companies in United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: PsiQuantum.
By Riya SenguptaFinancials
149companies tracked
$5.3Bdisclosed funding
4unicorns
77have raised
Ranked by disclosed equity funding and recent momentum, this directory tracks 149 Quantum Computing companies across the United States, with a combined $5.3B in disclosed capital and four unicorns already in the mix. The market's forecast to hit roughly $2.0B by 2027 at a 30.5% CAGR, and you can feel that velocity in the funding stack: PsiQuantum alone has pulled $1.3B, Quantum Computing sits at $1.1B, and Quantinuum has secured $625M. Three companies, over $3B between them. SandboxAQ adds another $500M. These aren't seed bets, they're structural capital commitments.
So what's actually driving the pile-on? Banking and finance adoption is accelerating demand, and the U.S. federal posture has hardened considerably, with Washington committing $2 billion to quantum firms including IBM in mid-2026. I'd note that most active investors here, OSTI, In-Q-Tel, and the National Science Foundation, skew heavily toward dual-use and deep-tech mandates, which shapes which companies attract capital and at what pace. Hot themes right now are quantum algorithms and cloud infrastructure, and the hardware-software convergence question, whether a quantum algorithm can run cleanly on classical chips, is moving from theoretical to tested.
Sources & further reading
- Quantum computing market is anticipated to surge over the next decade
- Quantum Computing Market Report 2025-2030 [230 Pages & 220 Tables]
Ranked: Best Quantum Computing companies in United States
| # | Company | Disclosed funding | Last round | Employees | Founded | Founder | Market signals (1y) | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | PsiQuantum 🦄 Developer of photon-based universal quantum computers 92Patents top 9%Funding top 13%Innovation top 16%Moat top 22% All 12 signals ▾Patentstop 9% Fundingtop 13% Innovationtop 16% Moattop 22% Newstop 26% Growthtop 27% AItop 28% Talenttop 30% Markettop 35% Partnerstop 41% Techtop 45% Globaltop 50% Patents: 889 patents matched (strict assignee match) · 691 filings since 2022 vs 198 in 2017-21 Funding: Raised $1.3B across 6 rounds · 6 rounds over 7 yrs (0.9/yr) rank vs industry peers · Fliar Intelligence Index 92/100 | $1.3B | 9 mo ago | 213 | 2015 | Mark Thompson Co-Founder & CTO | 8 signals ▲700% Leadership · Funding · Capital raise | 889 patents Patents concentrated in computing, sensing & instrumentation | 1 launch |
| 2 | Quantum Computing Provider of application software development and consultancy services 69Growth top 19%Funding top 20%News top 23%AI top 28% All 12 signals ▾Growthtop 19% Fundingtop 20% Newstop 23% AItop 28% Talenttop 33% Techtop 41% Innovationtop 42% Patentstop 44% Moattop 47% Fin. healthbottom 43% Marketbottom 39% Globalbottom 37% Growth: Headcount 25 → 38 (+52%) across vintages · Revenue +83% YoY Funding: Raised $1.1B across 7 rounds · 7 rounds over 7 yrs (1.0/yr) rank vs industry peers · Fliar Intelligence Index 69/100 | $1.1B | 8 mo ago | 38 | 2018 | Richard Malinowski Chief Information and Operations Officer and Founder | 34 signals ▲112% Earnings · M&A · Funding | 10 patents Quantum algorithm design and entropy‑based quantum computing for machine‑learning acceleration. | 1 job opening · 1 internship · 1 expansion |
| 3 | Quantinuum 🦄 Provider of quantum solution through research | $625M | 10 mo ago | 211 | 2021 | Harrison Dietz Business Analyst to the Founder and Chief Product Officer | 9 signals Capital raise · Funding · IPO | 409 patents Quantum computing hardware: qubit control, error correction, entanglement distribution, and architecture. | 2 partnerships |
| 4 | SandboxAQ 🦄 Developer of quantitative artificial intelligence models for various industry applications 69Funding top 17%Moat top 26%AI top 30%Market top 36% All 11 signals ▾Fundingtop 17% Moattop 26% AItop 30% Markettop 36% Producttop 41% Growthtop 42% Techtop 47% Talentbottom 49% Innovationbottom 47% Globalbottom 39% Newsbottom 24% Funding: Raised $500M across 3 rounds · 3 rounds over 4 yrs (0.8/yr) Moat: Editorial + unicorn rating 8/10 · Unicorn rank vs industry peers · Fliar Intelligence Index 69/100 | $500M | 14 mo ago | 181 | 2022 | Jack Hidary Chief Executive Officer | — | — | 1 launch |
| 5 | Infleqtion Provider of neutral-atom quantum technology, products and solutions 69Funding top 8%News top 27%Growth top 33%Market top 44% All 8 signals ▾Fundingtop 8% Newstop 27% Growthtop 33% Markettop 44% Talenttop 45% Techtop 47% Globalbottom 45% Moatbottom 38% Funding: Raised $347M across 25 rounds · 25 rounds over 3 yrs (8.3/yr) News: 11 BI events in 12 mo (of 15 tracked, 5 types) · +1000% YoY rank vs industry peers · Fliar Intelligence Index 69/100 | $347M | 3 mo ago | 197 197 → 233 (+18%) | 2007 | Pranav Gokhale Co-Founder & CTO | 11 signals ▲1000% M&A · Earnings · IPO | — | 1 job opening |
| 6 | D-Wave Developer and delivery of quantum computing systems, software, and services | $256M | 63 mo ago | 222 | 1999 | Haig Farris Co-Founder | 12 signals ▲50% Earnings · Leadership · Funding | 24 patents Advanced antenna designs and distributed wireless network performance optimization | 1 launch |
| 7 | Rigetti Computing Developer of an AI-powered full-stack quantum computing solution based on superconducting qubits 78Product top 14%Partners top 15%Tech top 21%Innovation top 25% All 13 signals ▾Producttop 14% Partnerstop 15% Techtop 21% Innovationtop 25% Fundingtop 25% Talenttop 28% Newstop 30% AItop 45% Markettop 46% Moattop 48% Growthtop 49% Fin. healthtop 49% Globalbottom 39% Product: 5 distinct product lines · Company stage: Public Partners: 7 contract events in 12 mo · Named contractor/client in 7 deals rank vs industry peers · Fliar Intelligence Index 78/100 | $198M | 13 mo ago | 145 145 → 198 (+37%) | 2013 | — | 26 signals ▲100% Earnings · Contracts · Funding | — | — |
| 8 | Sygaldry Developer of quantum-accelerated AI servers for training and inference acceleration | $139M | 3 mo ago | — | 2024 | Michael Keiser Co-Founder | — | — | 1 job opening |
| 9 | Quantum Circuits Develops quantum computers using superconducting quantum circuits | $105M | 22 mo ago | 20 20 → 26 (+30%) | 2015 | Michel Devoret Co-Founder & CSO | — | 10 patents Quantum photonic entangling gates, cryogenic‑room‑temp interfaces, and qubit resistive attenuators. | — |
| 10 | Atom Computing Developer of quantum computers using arrays of optically-trapped neutral atoms | $101M | 21 mo ago | 40 | 2018 | Jonathan King Co-Founder | — | 100 patents Neutral atom quantum computing hardware: atom array assembly, beam control, and error correction | 2 partnerships |
| 11 | IonQ Provider of cloud and trapped ion technology-based universal quantum computers | $84M | 72 mo ago | 202 | 2015 | Peter Chapman President/CEO | 53 signals ▲112% Earnings · Leadership · M&A | 546 patents IonQ patents advance ion‑trap quantum hardware, control, and algorithmic optimization. | 2 launchs |
| 12 | Orquestra Provider of workflow management systems for quantum computing | $55M | 36 mo ago | 70 | 2019 | Yudong Cao Co-Founder | — | — | — |
| 13 | Quantum Xchange Provider of secure communication solutions for cyber security | $40M | 65 mo ago | 15 | 2018 | Eddy Zervigon CEO | — | — | — |
| 14 | NTRU Cryptosystems Quantum-attack resistant data encryption for embedded security | $37M | 296 mo ago | — | 1996 | Jeffrey Hoffstein Founder & President | — | 6 patents Patents concentrated in electrical & electronics | — |
| 15 | Seeqc Provider of system-on-chips for quantum computing applications | $34M | 14 mo ago | 13 | 2019 | — | — | 87 patents Superconducting quantum processors, SFQ control/readout, cryogenic memory, quantum‑classical integration | 1 partnership · 1 award |
| 16 | Maybell Quantum Provider of a controlling system for superconducting qubits | $33M | 9 mo ago | 9 | 2021 | Corban Tillemann-Dick Co-Founder & CEO | — | 32 patents Cryogenic dilution refrigeration systems for quantum computing hardware | 1 partnership |
| 17 | QC Ware Provider of a cloud-based computational platform for quantum computing | $33M | 58 mo ago | 50 | 2014 | — | — | 74 patents Quantum algorithms and photonic hardware for chemistry, machine learning, and linear algebra | — |
| 18 | QuSecure Provider of platform for cryptographic discovery, remediation, and compliance reporting | $28M | 16 mo ago | 79 | 2019 | Kosta Vilk Co-Founder | 3 signals Leadership | 24 patents Quantum-safe cryptography infrastructure and post‑quantum security for communications and payments | — |
| 19 | Strangeworks Developer of quantum computing software solutions | $28M | 39 mo ago | 27 | 2018 | William Hurley Co-Founder & CEO | — | — | — |
| 20 | Projecteleven Provider of quantum computing technology for securing digital assets against quantum threats 53Growth top 28%Funding top 29%Tech top 44%Talent top 45% All 6 signals ▾Growthtop 28% Fundingtop 29% Techtop 44% Talenttop 45% Globalbottom 48% Marketbottom 31% Growth: Web rank 50,000,000 → 10,000,000 YoY · Fresh capital in last 24 mo Funding: Raised $26.0M across 2 rounds · 2 rounds over 1 yrs (2.0/yr) rank vs industry peers · Fliar Intelligence Index 53/100 | $26M | 5 mo ago | — | 2004 | Finn Murphy Co-Founder | — | — | — |
| 21 | Snowcap Compute Developer of a superconducting computing platform utilizing cryogenic cooling technology | $23M | 11 mo ago | — | 2024 | Rick Hyman Co-Founder & Member Board of Directors | — | — | — |
| 22 | Lightsynq Developer of optical quantum interconnects for quantum computers | $18M | 17 mo ago | — | 2024 | Bart Machielse Co-Founder & CTO | — | — | — |
| 23 | QuEra 🦄 Manufacturer of universal quantum computers based on Rydberg atoms 60Talent top 23%Moat top 24%Funding top 32%Tech top 39% All 8 signals ▾Talenttop 23% Moattop 24% Fundingtop 32% Techtop 39% Markettop 46% Growthbottom 47% Globalbottom 38% Newsbottom 17% Talent: 6 named leaders on record · 6 C-suite/founder profiles curated Moat: Editorial + unicorn rating 7/10 · Unicorn rank vs industry peers · Fliar Intelligence Index 60/100 | $17M | 9 mo ago | 48 | 2018 | Dirk Englund Co-Founder | — | — | 1 award |
| 24 | Zapata Quantum Developer of software platforms for building and deploying quantum applications 37Funding top 37%Talent top 38%AI top 45%Tech top 47% All 6 signals ▾Fundingtop 37% Talenttop 38% AItop 45% Techtop 47% Globalbottom 33% Marketbottom 25% Funding: Raised $15.0M across 1 rounds · 1 rounds over 1 yrs (1.0/yr) Talent: 2 named leaders on record · 2 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 37/100 | $15M | 2 mo ago | — | 2017 | Jonathan Olson Co-Founder | — | — | — |
| 25 | Hypres Superconductor ICs and systems for government and commercial applications | $14M | 13 mo ago | 35 35 → 29 (-17%) | 1982 | Richard Hitt CEO & President | — | 180 patents Patents concentrated in electrical & electronics | — |
| 26 | STAR Cryoelectronics Developer of SQUID sensors, electronics, and cryogenic systems | $12M | 52 mo ago | — | 1999 | Robin Cantor Founder & President | — | — | — |
| 27 | Naoris Protocol Provider of a platform offering a suite of cybersecurity solutions | $12M | 5 mo ago | 3 | 2017 | Fernando Martinho Co-Founder | — | — | — |
| 28 | Equal1 Developer of AI and cloud-powered silicon quantum computers | $12M | 5 mo ago | 32 | 2017 | Robert Staszewski Co-Founder | — | 70 patents Patents concentrated in computing, sensing & instrumentation | — |
| 29 | Qunnect Provider of telecommunications infrastructure services | $11M | 16 mo ago | 22 | 2018 | Mael Flament Co-Founder | — | 30 patents Patents concentrated in electrical & electronics | 1 partnership |
| 30 | Atlantic Quantum Developer of quantum computers for computations and processing information | $9M | 39 mo ago | 6 | 2022 | Bharath Kannan Co-Founder & CEO | — | — | — |
| 31 | Cavilinq Developer of optical interconnects designed to link individual quantum processors 35Talent top 28%Funding top 38%Global bottom 48%Tech bottom 46% All 5 signals ▾Talenttop 28% Fundingtop 38% Globalbottom 48% Techbottom 46% Marketbottom 31% Talent: 4 named leaders on record · 4 C-suite/founder profiles curated Funding: Raised $8.8M across 1 rounds · 1 rounds over 1 yrs (1.0/yr) rank vs industry peers · Fliar Intelligence Index 35/100 | $9M | 3 mo ago | — | 2025 | Hannes Bernien Co-Founder | — | — | — |
| 32 | BQP Developer of quantum-inspired simulation software for optimization, physics, and data analysis | $9M | 11 mo ago | — | 2020 | Jash Minocha Co-Founder & COO | — | — | — |
| 33 | BlueQubit Developer of AI-based quantum computing software solutions | $7M | 23 mo ago | 10 | 2022 | Hayk Tepanyan Founder and CTO | — | — | 1 launch |
| 34 | EeroQ Provider of gate-based quantum processor chips for universal quantum computers | $7M | 6 mo ago | 17 | 2016 | Johannes Pollanen Co-Founder | — | — | — |
| 35 | Welinq Provider of quantum networking solutions for scalable quantum computing | $5M | 40 mo ago | 10 | 2022 | Eleni Diamanti Co-Founder | — | — | 4 partnerships · 1 award |
| 36 | Quoherent Provider of AI-based portable quantum computer processor using qubits | $5M | 33 mo ago | — | 2021 | Alton Reich Co-Founder | — | 6 patents Control and integration of topological qubits for quantum computing hardware | — |
| 37 | Haiqu Provider of software solutions for quantum computing | $4M | 5 mo ago | 8 | 2016 | Richard Givhan Co-Founder | — | 5 patents Quantum algorithm compression and approximate circuit execution for distributed quantum computing | 1 launch · 1 partnership |
| 38 | QSimulate Laboratory focused on developing of quantitative simulation tools to help in quantum molecular 32Growth top 35%Talent top 38%Funding top 41%Moat top 48% All 7 signals ▾Growthtop 35% Talenttop 38% Fundingtop 41% Moattop 48% Techbottom 36% Globalbottom 36% Marketbottom 24% Growth: Fresh capital in last 24 mo Talent: 2 named leaders on record · 2 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 32/100 | $4M | 6 mo ago | 14 14 → 21 (+50%) | 2018 | Toru Shiozaki Co-Founder & CEO | — | — | 1 job opening |
| 39 | Radical Semiconductor Provider of embedded systems for hardware security | $4M | 39 mo ago | 4 | 2019 | — | — | — | — |
| 40 | Mesa Quantum Developer of chip scale quantum sensing and precision measurement solutions | $4M | 5 mo ago | — | 2023 | Sristy Agrawal Co-Founder & CEO | — | — | 1 job opening |
| 41 | QuSpin Developer of magnetic field sensors 10Moat top 38%Product top 48%Funding bottom 48%Patents bottom 47% All 9 signals ▾Moattop 38% Producttop 48% Fundingbottom 48% Patentsbottom 47% Talentbottom 45% Innovationbottom 42% Globalbottom 31% Techbottom 19% Marketbottom 17% Moat: Editorial + unicorn rating 4/10 · IP moat: 16 patents Product: 4 distinct product lines · 1 published app (19 installs) rank vs industry peers · Fliar Intelligence Index 10/100 | $3M | 13 mo ago | 9 | 2012 | Vishal Shah Founder | — | 16 patents Atomic and optically pumped magnetometer technologies for MEG sensor arrays | — |
| 42 | EuQlid Provider of quantum sensing and imaging solutions for electronic systems | $3M | 7 mo ago | — | 2022 | Sanjive Agarwala Co-Founder and CEO | — | — | — |
| 43 | Anametric Quantum cybersecurity solutions provider | $3M | 21 mo ago | 7 | 2017 | Wil Oxford Founder & CEO | — | 36 patents Hardware security primitives: reversible hash circuits, entropy generators, quantum RNGs, PUFs. | — |
| 44 | Aliro Technologies Provider of cloud-based platform to access quantum computers 29Talent top 28%Growth top 35%Moat top 42%Funding top 44% All 10 signals ▾Talenttop 28% Growthtop 35% Moattop 42% Fundingtop 44% Globalbottom 39% Techbottom 37% Patentsbottom 34% Innovationbottom 29% Marketbottom 25% Newsbottom 22% Talent: 3 named leaders on record · 3 C-suite/founder profiles curated Growth: Fresh capital in last 24 mo rank vs industry peers · Fliar Intelligence Index 29/100 | $3M | 4 mo ago | 10 | 2019 | Bob Davoli Co-Founder & CEO | — | 7 patents Secure encrypted transaction arbitration for intermediary‑author interactions in digital commerce | — |
| 45 | QubitSolve Provider of quantum simulation software for fluid dynamics | $3M | 6 mo ago | — | 2022 | Madhava Syamlal Founder & CEO | — | — | — |
| 46 | memQ Provider of chip device technology services for quantum information storage and processing | $2M | 2 mo ago | 10 | 2021 | Manish Singh Co-Founder & CEO | — | — | 1 job opening · 1 expansion |
| 47 | Bifrostelectronic Developer of electronics for quantum computing readout and control systems | $2M | 11 mo ago | — | 2025 | Zenith Tillemann-Dick CEO | — | — | — |
| 48 | QMatter Developer of algorithms for compressing industrial problems for quantum computers | $1M | 2 mo ago | — | 2025 | Alexis Ralli Co-Founder | — | — | — |
| 49 | Qodex Quantum Developer of quantum-native AI models and a platform to deploy them | $1M | 5 mo ago | — | 2025 | Ethan Evans Co-Founder & CRO | — | — | — |
| 50 | qBraid Provider of an AI and cloud-based IDE tool for quantum computing | $350K | 9 mo ago | 16 | 2020 | Kanav Setia Co-Founder & CEO | — | — | 1 job opening · 3 launchs · 2 partnerships |
Top 12 Quantum Computing companies in United States
#1
Public · Louisville, Colorado · founded 2007 · 197 employees$346.6Mraised▾
Public · Louisville, Colorado · founded 2007 · 197 employees
Provider of neutral-atom quantum technology, products and solutions. The company specializing in neutral-atom quantum computing, precision quantum sensing, and quantum software. They are focused on driving the industry forward and building an ecosystem of quantum technologies. It is used for defense and national security, space, telecommunications, scientific research and enterprise computing.
Fliar Intelligence Index™ 69how this company ranks against its industry peers
Funding
top 8%News
top 27%Growth
top 33%Market
top 44%Talent
top 45%Tech
top 47%Funding: Raised $347M across 25 rounds · 25 rounds over 3 yrs (8.3/yr) · Last round Grant (prize money) (Mar 2026)
News: 11 BI events in 12 mo (of 15 tracked, 5 types) · +1000% YoY · 8 high-value events (IPO/M&A/funding/contracts) in 12 mo
Growth: Headcount 173 → 197 (+14%) across vintages · 2 acquisition/expansion moves in 24 mo · Fresh capital in last 24 mo
Audience (LinkedIn): 39k LinkedIn followers — 5.7% of this cohort's audience
Hiring (LinkedIn): 1 hiring post in 12 mo (public) · hiring: quantum physicist, software engineer
Funding rounds
- Mar 2026Grant (prize money)$3.9M
- Mar 2025Grant (prize money)$6.2M
- Dec 2024Series C$100M
- Dec 2024Grant (prize money)$11M
Founders & team
Investors
Maverick Ventures, Defense.gov, Ukri, DOE, Glynn Capital, Morgan Stanley
Tech stack
Apache Http ServerBootstrapCloudflareCloudflare Bot ManagementCookiebotCore-Js
#2
Public · Leesburg, Virginia · founded 2018 · 38 employees$1.1Braised▾
Public · Leesburg, Virginia · founded 2018 · 38 employees
Provider of application software development and consultancy services. It provides users with a company that designs and develops application software based on quantum computation and machine learning. It offers hardware designing, application development, security support, and consultancy services. It has a quantum annealing computer capable of simulating the capabilities of a quantum computer.
Fliar Intelligence Index™ 69how this company ranks against its industry peers
Growth
top 19%Funding
top 20%News
top 23%AI
top 28%Talent
top 33%Tech
top 41%Growth: Headcount 25 → 38 (+52%) across vintages · Revenue +83% YoY · 6 acquisition/expansion moves in 24 mo
Funding: Raised $1.1B across 7 rounds · 7 rounds over 7 yrs (1.0/yr) · Last round Post IPO (Oct 2025)
News: 34 BI events in 12 mo (of 62 tracked, 9 types) · +112% YoY · 15 high-value events (IPO/M&A/funding/contracts) in 12 mo
Audience (LinkedIn): 27k LinkedIn followers — 4.1% of this cohort's audience
Hiring (LinkedIn): 1 hiring post in 12 mo (public) · hiring: Mechanical Engineer
Activity (LinkedIn): 1 expansions announced in 12 mo
Funding rounds
- Oct 2025Post IPO$750M
- Jun 2025Post IPO$200M
- Jan 2025Post IPO$100M
- Jan 2021Post IPO$3.2M
Founders & team
Investors
Falcon Capital
Tech stack
CloudflareCloudflare Bot ManagementContentfulEmotionGodaddyGoogle Workspace
#3
Series E · Palo Alto, California · founded 2015 · 213 employees$1.3Braised▾
Series E · Palo Alto, California · founded 2015 · 213 employees
Developer of photon-based universal quantum computers. It uses photonic technology to develop error-corrected general-purpose quantum computers. It has applications in drug discovery, personalized medicine, artificial intelligence, and materials sciences.
Fliar Intelligence Index™ 92how this company ranks against its industry peers
Patents
top 9%Funding
top 13%Innovation
top 16%Moat
top 22%News
top 26%Growth
top 27%Patents: 889 patents matched (strict assignee match) · 691 filings since 2022 vs 198 in 2017-21 · Latest publication 2026
Funding: Raised $1.3B across 6 rounds · 6 rounds over 7 yrs (0.9/yr) · Last round Series E (Sep 2025)
Innovation: 889 patents (top 1% of patent-holders) · 691 filings since 2022 vs 198 in 2017-21 · Deep-tech classification: Tech Hardware
Audience (LinkedIn): 85k LinkedIn followers — 12.5% of this cohort's audience
Activity (LinkedIn): 1 product launches announced in 12 mo
Funding rounds
- Sep 2025Series E$1B
- May 2025Series E$22M
- Apr 2024Series E$614.1M
- Apr 2024Conventional Debt—
Founders & team
Investors
M12, Atomico, Founders Fund, Redpoint Ventures, BlackRock, Playground Global
Tech stack
Amazon Web ServicesAngularApple Icloud MailCart FunctionalityCdnjsCloudflare
#4
Series A · Mountain View, California · founded 2024$139Mraised▾
Series A · Mountain View, California · founded 2024
Developer of quantum-accelerated AI servers for training and inference acceleration. It builds tools to integrate quantum capabilities into AI models and workflows. The company aims to deliver infrastructure for quantum superintelligence. Its AI servers combine qubit modalities within a fault-tolerant architecture. This approach seeks to provide the cost, scale, and speed necessary for advanced AI applications.
LinkedIn Pulse recent public activity · Jul 2026
Audience: 3k LinkedIn followers
Hiring: 4 hiring posts in 12 mo (public) · momentum -1 · hiring: Head of HR & Talent Acquisition, Experimental Quantum Physicist
Funding rounds
- Mar 2026Series A$105M
- Seed$34M
Founders & team
Investors
Breakthrough Energy, Y Combinator, Rock Yard Ventures, In-Q-Tel, University of Michigan, QDNL Participations
Tech stack
Apple Icloud MailCloudflareCloudflare Browser InsightsHttp/3Open GraphPwa
#5
Series E · Broomfield, Colorado · founded 2021 · 211 employees$625Mraised▾
Series E · Broomfield, Colorado · founded 2021 · 211 employees
Provider of quantum solution through research. It provides users with research labs dedicated to quantum computing technology. It caters to drug discovery, healthcare, materials science, cybersecurity, energy transformation, and climate change.
LinkedIn Pulse recent public activity · Jul 2026
Audience: 66k LinkedIn followers — 9.8% of this cohort's audience
Activity: 2 partnerships (incl. Microsoft Group) announced in 12 mo
Funding rounds
- Aug 2025Series E$838.8M
- Dec 2023Series D$500M
Founders & team
Investors
Mitsui, Amgen, JPMorgan Chase, Honeywell, Quanta Computer, Serendipity Capital
Tech stack
Amazon SesAmazon Web ServicesCdnjsCloudflareCloudflare TurnstileGoogle Analytics
#6
Series E · Palo Alto, California · founded 2022 · 181 employees$500Mraised▾
Series E · Palo Alto, California · founded 2022 · 181 employees
Developer of quantitative artificial intelligence models for various industry applications. The company provides large quantitative models rooted in science and engineered for impact. These models offer real-world solutions with clear outputs and reduced uncertainty. The company's models are deployed in areas such as drug discovery, new chemicals and materials, cybersecurity, navigation, and medical diagnostics.
Fliar Intelligence Index™ 69how this company ranks against its industry peers
Funding
top 17%Moat
top 26%AI
top 30%Market
top 36%Product
top 41%Growth
top 42%Funding: Raised $500M across 3 rounds · 3 rounds over 4 yrs (0.8/yr) · Last round Series E (Apr 2025)
Moat: Editorial + unicorn rating 8/10 · Unicorn · 9 curated direct competitors tracked
AI: Classified as an AI company · Product described with: artificial intelligence
Audience (LinkedIn): 54k LinkedIn followers — 8.0% of this cohort's audience
Activity (LinkedIn): 1 product launches announced in 12 mo
Funding rounds
- Apr 2025Series E$150M
- Dec 2024Series A$300M
- Feb 2023Series A$500M
- May 2022Seed—
Founders & team
Investors
Schmidt’s, Breyer Capital, T. Rowe Price, TIME Ventures, Parkway VC, Guggenheim Partners
Tech stack
CloudflareCore-JsDocusignGoogle AnalyticsGoogle Tag ManagerGoogle Workspace
#7
Late Stage · Boston, Massachusetts · founded 2017$15Mraised▾
Late Stage · Boston, Massachusetts · founded 2017
Developer of software platforms for building and deploying quantum applications. This technology stack facilitates the design, validation, and execution of algorithms across various hardware architectures. The software provides tools for resource estimation, error correction, and circuit compilation to assist in the development of computational workflows. These capabilities support research and practical implementation in fields such as molecular simulation, optimization, machine learning, and data analysis. The platform integrates with classical computing resources to manage and optimize the execution of quantum tasks.
Fliar Intelligence Index™ 37how this company ranks against its industry peers
Funding
top 37%Talent
top 38%AI
top 45%Tech
top 47%Global
bottom 33%Market
bottom 25%Funding: Raised $15.0M across 1 rounds · 1 rounds over 1 yrs (1.0/yr) · Last round Post IPO (Apr 2026)
Talent: 2 named leaders on record · 2 C-suite/founder profiles curated
AI: Product described with: machine learning
Funding rounds
- Apr 2026Series B$15M
Founders & team
Investors
Triatomic
Tech stack
Acquia Cloud PlatformAcquia Cloud Site FactoryAdobe AnalyticsAdobe Experience Platform Identity ServiceAdobe Experience Platform LaunchAmazon Web Services
#8
Series A · Stanford, California · founded 2004$26Mraised▾
Series A · Stanford, California · founded 2004
Provider of quantum computing technology for securing digital assets against quantum threats. It leverages applied quantum computing to provide high quality information on quantum computation, cryptography and blockchains.
Fliar Intelligence Index™ 53how this company ranks against its industry peers
Growth
top 28%Funding
top 29%Tech
top 44%Talent
top 45%Global
bottom 48%Market
bottom 31%Growth: Web rank 50,000,000 → 10,000,000 YoY · Fresh capital in last 24 mo
Funding: Raised $26.0M across 2 rounds · 2 rounds over 1 yrs (2.0/yr) · Last round Series A (Jan 2026)
Tech: 21 technologies across 4/8 capability areas · Cloud: Cloudflare, Vercel · Security: Hsts, Http/3
Funding rounds
- Jan 2026Series A$20M
- Jun 2025Seed$6M
Founders & team
Investors
Variant Fund, Quantonation, Castle Island Ventures, Nebular, Formation, Coinbase
Tech stack
BunnyCloudflareCloudflare Browser InsightsGoogle Tag ManagerHstsHttp/3
#9
Public · Berkeley, California · founded 2013 · 145 employees$198Mraised▾
Public · Berkeley, California · founded 2013 · 145 employees
Developer of an AI-powered full-stack quantum computing solution based on superconducting qubits. It designs and fabricates quantum chips, integrate them with a controlling architecture, and develops software for programmers to use to build algorithms for the chips. Its product portfolio includes a cloud-computing platform and a fabrication lab to create 3D-integrated quantum circuits.
Fliar Intelligence Index™ 78how this company ranks against its industry peers
Product
top 14%Partners
top 15%Tech
top 21%Innovation
top 25%Funding
top 25%Talent
top 28%Product: 5 distinct product lines · Company stage: Public
Partners: 7 contract events in 12 mo · Named contractor/client in 7 deals · Marquee-customer mentions: top 17% of tracked companies
Tech: 58 technologies across 6/8 capability areas · Cloud: Amazon Ses, Amazon Web Services · Devops: Nginx
Audience (LinkedIn): 50k LinkedIn followers — 7.4% of this cohort's audience · 94 engagements/post (2.7× cohort median)
Funding rounds
- Apr 2025Post IPO$35M
- Mar 2025Grant (prize money)$2M
- Feb 2024Grant (prize money)—
- Jun 2022Grant (prize money)—
Investors
Vy Capital, Andreessen Horowitz, Y Combinator, DCVC, Founders Fund, AME Cloud Ventures
Tech stack
Acquia Cloud PlatformAcquia Cloud Site FactoryActivecampaignAdobe AnalyticsAdobe Experience Platform Identity ServiceAdobe Experience Platform Launch
#10
Series A · Fremont, California · founded 2017 · 32 employees$11.6Mraised▾
Series A · Fremont, California · founded 2017 · 32 employees
Developer of AI and cloud-powered silicon quantum computers. It provides users with a platform that designs and develops universal quantum computers that use silicon-based qubits. Its features include cryogenic cooling systems, high-performance FPGA boards, and neural networks.
LinkedIn Pulse recent public activity · Jul 2026
Audience: 7k LinkedIn followers
Funding rounds
- Jan 2026Series A$60M
- Jun 2022Grant (prize money)$2.7M
- Dec 2021Seed—
- Oct 2021Grant (prize money)$58K
Founders & team
Investors
Atlantic Bridge, 808 Ventures, Enterprise Ireland, b2venture, Europa, EIC Fund
Tech stack
CloudflareGoogle Font ApiGoogle Hosted LibrariesGoogle WorkspaceHstsHttp/3
#11
Seed · Cambridge, Massachusetts · founded 2025$8.8Mraised▾
Seed · Cambridge, Massachusetts · founded 2025
Developer of optical interconnects designed to link individual quantum processors. These interconnects enable multiple quantum processors to function as a single unit. Further development aims to extend the range of these connections. This lays the groundwork for a future quantum network.
Fliar Intelligence Index™ 35how this company ranks against its industry peers
Talent
top 28%Funding
top 38%Global
bottom 48%Tech
bottom 46%Market
bottom 31%Talent: 4 named leaders on record · 4 C-suite/founder profiles curated
Funding: Raised $8.8M across 1 rounds · 1 rounds over 1 yrs (1.0/yr) · Last round Seed (Mar 2026)
Global: Investors from 1 country beyond United States
Funding rounds
- Mar 2026Seed$8.8M
Founders & team
Investors
QVT Family Office, Safar Partners, MFV Partners, Serendipity Capital
Tech stack
BootstrapGoogle CloudGoogle Cloud CdnGsapHstsHttp/3
#12
Series A · Wilmington, Delaware · founded 2017 · 3 employees$12.1Mraised▾
Series A · Wilmington, Delaware · founded 2017 · 3 employees
Provider of a platform offering a suite of cybersecurity solutions. It is a cybersecurity enforcement protocol employing a HyperStructure ethos that is unstoppable, permissionless, and credibly neutral. It also turns centralized computer networks with traditionally untrusted devices into a decentralized cyber secure mesh.
LinkedIn Pulse recent public activity · Jul 2026
Audience: 4k LinkedIn followers
Funding rounds
- Jan 2026Series A—
- May 2025Series A$3M
- Jul 2022Series A$11.5M
- Jul 2022Seed$554.6K
Founders & team
Investors
The Holt Xchange, Holdun, Expert DOJO, Level One Robotics, Uniera, SDC Management
Tech stack
CalendlyCloudflareFirebaseGoogle AnalyticsGoogle WorkspaceHsts
Funding & investor landscape
$5.3Btotal disclosed funding
76companies funded
273disclosed rounds
3rounds last 90 days
Most active investors
Gov4 rounds
Notable founders
Pranav Gokhale
Co-Founder & CTO · Infleqtion
Dana Anderson
Co-Founder & CTO · Infleqtion
Richard Malinowski
Chief Information and Operations Officer and Founder · Quantum Computing
Eric Schwartz
Board Member · Quantum Computing
Mark Thompson
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Terry Rudolph
Co-Founder · PsiQuantum
Michael Keiser
Co-Founder · Sygaldry
Chad Rigetti
Co-Founder & CEO · Sygaldry
Harrison Dietz
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Ilyas Khan
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Jack Hidary
Chief Executive Officer · SandboxAQ
Jonathan Olson
Co-Founder · Zapata Quantum
Prism market signals · United States · country-scoped Prism corpus, 11,467,466 docs
Market landscape — 10 sub-themes by coverage
Share of Quantum Computing coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
RESEARCH SIGNALS · United States
How research on Quantum Computing is moving in the United States
A read on the academic research around Quantum Computing — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 7,908 United States-affiliated papers.
research sentiment over time
200820172026
enthusiastic · positive · guarded tone
Tone is overwhelmingly optimistic and intensifying — the enthusiastic (strongly-positive) share moved 28% → 38% across 2008–2026.
top research entities
- University of Chicago414
- Massachusetts Institute of Technology410
- California Institute of Technology345
- University of Maryland, College Park311
- Harvard University283
leading researchers
Liang Jiang · Franco Nori · Sabre Kais · Sophia E. Economou · Daniel A. Lidar · Edwin Barnes · S. Das Sarma · Hichem Eleuch
▲
Breakthroughs4,721 · 60%
▼ 63%→59% share
▼0.9× share momentum4 median citations83% since 2021mostly methods-led
Qubit breakthroughs are surging — U.S. papers rose from 352 to 2,240, with Quantum Fourier transform newly emerging at 52 papers.
rising sub-themes (early→recent)
- Qubit352→2240
- Quantum computer130→1425
- Quantum algorithm45→688
- Quantum entanglement60→425
- Quantum mechanics94→394
Newly emergingQuantum Fourier transform 0→52 · Overhead (engineering) 0→49 · Parameterized complexity 0→43
Landmark Quantum supremacy using a programmable superconducting processor · 6,740 cites
◆
Advancements2,039 · 26%
▲ 23%→26% share
▲1.1× share momentum3 median citations84% since 2021mostly methods-led
Quantum computer advancement research intensified — papers grew from 54 to 784, with Quantum simulator newly emerging as a distinct sub-topic.
rising sub-themes (early→recent)
- Qubit125→1026
- Quantum computer54→784
- Quantum algorithm17→327
- Algorithm10→165
- Quantum entanglement19→147
Newly emergingQuantum simulator 0→52 · Artificial neural network 0→31 · Quadratic unconstrained binary optimization 0→22
Landmark The theory of variational hybrid quantum-classical algorithms · 2,165 cites
▼
Concerns679 · 9%
▲ 8%→9% share
▲1.1× share momentum3 median citations86% since 2021mostly empirical
Quantum error correction concerns are rising sharply — U.S. papers grew from 5 to 59, with Quantum circuit newly flagged as a concern area.
rising sub-themes (early→recent)
- Qubit40→334
- Quantum computer22→310
- Quantum algorithm11→125
- Quantum error correction5→59
- Quantum entanglement8→62
Newly emergingQuantum circuit 0→31 · Computer engineering 0→18 · Quantum gate 0→17
Landmark Quantum Computing in the NISQ era and beyond · 7,809 cites
RESEARCH HOTSPOTS · United States
Where quantum computing is researched across United States
Location clusters by institution affiliation — each city's volume, stance tone, and a quick read on its hot topic, what's advancing, the opening opportunity, and the main concern.
Boston753 · +0.69
Los Angeles564 · +0.70
SF Bay Area543 · +0.72
Chicago518 · +0.72
New York251 · +0.64
Ann Arbor110 · +0.67
Atlanta94 · +0.62
Austin94 · +0.68
Pittsburgh83 · +0.67
Seattle78 · +0.68
PATENT SIGNAL · United States
Who's filing quantum computing patents in the United States
United States quantum computing patent filing is accelerating — 19,380 filings from 8,000 assignees (2016–2025), led by IBM, Intel, Google; annual filings 894→2995.
19,380 filings8,000 assigneespeak 3067/yr2016–2025
filing momentum (YoY 2016–2025)
top patent filers
- IBM6399
- Intel3080
- Google1855
- Microsoft1068
- Molecular Imprints1048
- Hewlett Packard Development646
- Northrop Grumman Systems637
- UNIV California602
Common questions
How many Quantum Computing companies are there in United States?
Radar tracks 149 indexable Quantum Computing companies headquartered in United States that meet our profile-completeness bar.
What is the total funding raised by Quantum Computing companies in United States?
The Quantum Computing companies in United States on this list have raised a combined $5.3B in disclosed equity funding across 76 funded companies.
Which is the highest-funded Quantum Computing company in United States?
PsiQuantum is the highest-funded Quantum Computing company in United States, with $1.3B in disclosed equity funding.
How many Quantum Computing companies in United States are funded?
76 of the 149 Quantum Computing companies in United States on this list have disclosed at least one equity funding round.
How many Quantum Computing unicorns are there in United States?
4 Quantum Computing companies in United States on this list are valued at $1B or more.
Who are the top investors in United States Quantum Computing companies?
The most active investors in United States Quantum Computing companies on this list include OSTI, In-Q-Tel, America’s Seed Fund, Duality, National Science Foundation.
Riya SenguptaFinancials
Riya reads income statements for fun. She covers the real money in a sector — revenue, growth, who actually earns — and never met a vague claim she didn't want a number for.