20 Quantum Computing Companies You Need To Know | Built In
If there's anemoji that perfectly encapsulates quantum computing, it's the exploding head.
Consider, for example, thatthe temperature of most quantum processing chips must be kept as close to absolute zero (roughly -460 degrees Fahrenheit) as possible. Or that some physiciststhinkquantum computing isthe first technology that allows useful tasks to be performed in collaboration between parallel universes.Or that a quantum computer recently made history go backward. True, it was only a simulation, but still brain blowing stuff.
Before we get carried away, though, lets consider the foundational basics. Classical computers operate using binary bits, storing data and running processes using ones and zeroes. Quantum machines, however, runon multi-state components called qubits, which can reach the superposition of essentially being both one and zero while also entanglingincombined states. In lay terms, that means quantum computerscan do lots of things typical computers can't, including crunching massive amounts of complex information faster than an over-caffeinated cheetah in a time-lapse video.
At this point, imagining those applications is a bit like daydreaming about Christmas in May:there's plenty of anticipation and even wonder, butthe big day itself remains a long way off. That's becauseso far, no one approach to quantum computing has proven ideal. Also, the key work of stabilizing those qubits is arduous and expensive.As theoretical computer scientist Scott Aaronson told Gizmodo, actually building a useful quantum computer is a massive technological undertaking.
Even so, an increasing number of companies including well-funded startups andseveralmajor players(think Google, IBM, Microsoft)that have partnered with research institutions to pool wallets and brain power are trying to close the gap between present and future. When quantum computing is perfected, they know, it will transform a host of industries:medicine, fusion energy, plasma science, climate change, electric vehicles, finance, artificial intelligence and (in rather scary ways) information security.
Which companywill lay claim to the first big quantum-computing breakthrough? Check out these 20 leading contenders.
Location: Austin, Texas
What it does: With apologies to poetic pioneer Peter Shor, the biggest personality in quantum computing is probably William Hurley, aka Whurley, the Austin serial entrepreneur who heads up Strangeworks. The impressively bearded founder is well-known for headline-grabbing stunts, like the time he zapped an intern with a Taser-strapped drone. But hes a serious quantum evangelist whose company completed a $4 million seed round last year, while eyeing a near-term goal of launching quantum-application subscription services for the aerospace, energy, pharmaceutical and finance industries. Fun fact: Hes also the coauthor of Quantum Computing for Babies.
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Location: Cambridge, Mass.
What it does: Quantum Circuits isnt the only Ivy League quantum spinoff. Using proprietary technology and exclusive algorithms developed at Harvard University, Zapata Computing not unlike QC Ware is building quantum software platforms with big-fish enterprise companies in mind. (A recent round of $21 million VC money will help the cause.) According to Forbes, Zapata is making virtual chemistry, machine learning and optimization its first-wave QC focal points.
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Location: Boulder, Colo.
What it does:While you cant exactly hit up TaskRabbit when your quantum computer needs help, service and product support are must-haves for developers. ColdQuanta manufactures various quantum components like vacuum systems and processors to keep atoms brutally cold, which aids the all-important work of cutting down qubit motion and noise. The startup recently brought on D-Wave veteran Bo Ewald as president and CEO.
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Location: Berkeley, Calif.
What it does: When XPRIZE founder Peter Diamandis listed what he believes to be the three major players in the push toward quantum supremacy in America, he named two titans (Google and IBM) and one startup: Rigetti Computing. Rigetti recently announced the public beta of its Quantum Cloud Services platform, which the company calls the first cloud service powered by quantum computing.
Location: College Park, Md.
What it does: Its tempting to reduce quantum computing to a simple numbers game, namely number of total qubits. The truth is, you have to consider qubit qualityrather than mere quantity. Still, when IonQ last year bested the qubit counts of IBM (50)and Google(72) with its 160-qubit processor, jaws dropped. Whereas most QC companies employ superconductors, IonQ which recently welcomed famed Amazon Prime boss Peter Chapman as CEO is pioneering the trapped-ion method through which ions are isolated in a vacuum chamber and subatomic particles are cooled via lasers, eliminating the need for the gigantic copper-looking contraptionsthat are common to quantum computers.
Location: Palo Alto, Calif.
What it does: A developer ofenterprise software for quantum computers, QC Ware counts Citi and Goldman Sachs among its investors. It has alsoteamed with a number of other outfits, includingD-Wave, IBM and, perhaps most notably, Google, whose open-source quantum interface Cirq was recently integrated into QC Wares cloud service.
Location: Armonk, N.Y.
What it does: Most quantum computing developers are pursuing the universal gate model, rather than, say, annealers (more on those later). The gate model puts qubits into circuits, not unlike traditional ones-and-zeros bits, via superconducting. Tech mainstay IBM is a leader in this lane, having developed at least eight gate-model prototypes, one as high as 50 qubits. (Thats a lot.) Earlier this year, IBM unveiled the Q System One, a step forward for stability and commercial research. It also recently partnered with Exxon Mobil to work on a network that, both parties hope, could lead to innovations in predictive climate models and electric grid management.
Location: Burnaby, B.C.
What it does: About that annealing. In the simplest terms, the quantum annealing process aims to return the lowest possible energy solutions by focusing mostly on questions of optimization. D-Wave Systems which recently announced their least noisy entry, the Pegasus is most synonymous with this approach. But is it actually quantum? Not really, some critics say. It doesnt operate on the gate model, which means Pegasus ultra-high qubit rate isnt really all that comparable to almost all of D-Waves contemporaries. Still, its hybrid software developments could very well help advance QC's thorny question of scalability.
Location: Washington, D.C.
What it does: Quantum computing is poised to revolutionize fintech, where its supercomputing prowess will simplify risk management, credit scoring, portfolio optimization and just about every other facet of finance. (You wont be surprised to learn that Goldman Sachs invests in D-Wave Systems.) Data analytics company and IBM partner QxBranch is building quantum computing software rather than hardware that could prove a boon in this context. Another predictive bona fide: its poised to out-predict NateSilver, creating gobsmackingly sophisticated election forecasting models.
Location: New Haven, Conn.
What it does: Founded in 2015 by three veterans of Yales applied physics department, Quantum Circuits unveiled its testing facility this past January. The cofounders are considered trailblazers in quantum computing with superconducting circuits (hence the name), and the company is illustrative of the science-meeting-tech, academia-meeting-big-business cross-pollination that marks the quest for quantum supremacy.
Location: Berkeley, Calif.
What it does: The exponential boost in data-processing power that quantum computing holds over classical computing opens the door for a, well, quantum leap in pharmaceutical research. Bleximo which raised $1.5 million in seed funding and was named to the Cyclotron Road fellowship last year has singled out QC-enabled medical development as its first practical goal. To that end, the company is trying to develop what it calls quantum accelerator, essentially quantum-based computational systems designed for a single, specific application, its narrower use being a tradeoff for greater performance.
Location: Vancouver, B.C.
What it does: On the topic of pharma research, 1QBit made waves when it partnered with two major players: tech consultants Accenture and biotech multinational Biogen. The ultimate goal is to use quantum computing to create a molecular modeling application, which in turn couldlead to breakthroughs in drug development to treat neurodegenerative conditionslike dementia. The early-entry quantum company, founded in 2012 and described by Forbes as the worlds first dedicated quantum computing focused commercial business, also teamed with Dow Chemical Company in 2017 to explore how nature-simulating QC might propel materials science.
Location: Toronto
What it does: This well-financed Toronto startup is notable for exploring photonic quantum computing, which uses the quantum properties of light particles to run. Last year it released free, open-source software that basically lets anyone run commands on publicly accessible, cloud-based quantum computers, like the IBM Q Experience or the University of Bristols Quantum in the Cloud part of a wider push to familiarize enthusiasts with QC operational basics. More recently, Xanadu announced a whopping $32 million in early stage financing.
Location: Santa Clara, Calif.
What it does: Venerable processor-makerIntel has been seriously exploring quantum computing since at least 2015, when it partnered with leading Dutch research group QuTech. Among its most recent contributions to the cause: a first-of-kind QC testing device, dubbeda cryoprober. The tool purportedly can (relatively) quickly measure qubit characteristics even at the hundreds-below-zero temperatures often required for qubit stabilization, speeding up a process that once took days just to gather small amounts of data. As for the long term, according to its director of quantum hardware,Intel is eyeing nothing less than a million-qubit system the number at which truly transformational power will occur.
Location: Waterloo, Ont.
What it does: RSA security encryption relies on prime numbers to secure your information. More specifically, it relies on the fact that prime factorization of large numbers is prohibitively time-consuming for would-be hackers. But if a quantum computer powerful enough to run Shors factorization algorithm ever came along, all that security essentially vanishes. This looming threat has birthed an entire sub-industry dedicated to patching potentially huge vulnerabilities. Isara has emerged as an early frontrunner, working to develop security systems that essentially allow communication between classical and quantum algorithms.
Location: Mountain View, Calif.
What it does: The as-yet still-theoretical concept of quantum supremacy is easily explained (the power ofquantum computers to perform tasks that classical computers can't) and extremely difficult to achieve. Some developers claim its arrival is imminent; others say its several years away. Googles Research wing, which has partnered with NASA to win the great quantum supremacy races, appears to be in the former camp. Hartmut Neven, director of the tech giants Quantum Artificial Intelligence lab, recently told Quanta that quantum computers are growing doubly exponentialwhere it looks like nothing is happening, nothing is happening, and then whoops, suddenly youre in a different world.
Location: Redmond, Wash.
What it does: While most quantum-computing research hitches its qubits to the superconductor/solid-state wagon or, to a lesser degree, trapped ions, Microsoft rolls along a third route: topological qubits. These qubits would sidestep so many pesky stability requisites (those mind-bogglingly cold temps, no physical vibrations) by splitting an electron essentially, double anti-interference protection and exhibiting two ground states (a.k.a. ground state degeneracy). We say would, however, because the process still remains strictly theoretical.
Location: Charlotte, N.C.
What it does: Despite years of gestation, this many-tentacled conglomerate only recently peeled back the lab curtains on its quantum efforts. Somewhat surprisingly, Honeywell is going the less-traveled trapped-ion route, similar to IonQ. Honeywell runs its trap system with ytterbium atoms, which it claims has a leg up over solid-state competitors. Because each of these atoms is identical, defined in nature by its atomic structure, our system can be uniformly formed and controlled more easily and quickly compared to alternative systems that do not directly use atoms, says president Tony Uttley, a former operations manager at NASA. It was apparently enough to convince the Canadian Space Agency, which recently inked a multi-million deal with Honeywell to run a satellite mission to test quantum encryption.
Location: Berkely, Calif.
What it does: As its names hints, Atom Computing uses qubits made from neutral atoms, described by Science as a dark horse candidate in the quantum-computing sweepstakes. Backed by at least $5 million in venture capital and founded by Benjamin Bloom, a former senior quantum engineer at Rigetti and member of the team that smashed the atomic clock record, Atom hopes its novel approach will lead to scalable beyond-super computers that advance pharmaceutical research, computational chemistry and more.
Location: Toronto
What it does: North of the border, the Creative Destruction Lab non-profit has incubated several notable quantum alumni, including Xanadu, D-Wave partners Solid State AI and this forward-thinking biotech startup. A Rigetti partner, ProteinQure uses quantum computing and machine learning to computer-simulate designs for protein-based drugs.
Images via Shutterstock, social media and company webpages
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20 Quantum Computing Companies You Need To Know | Built In
- First full simulation of 50-qubit universal quantum computer achieved - Phys.org - November 11th, 2025 [November 11th, 2025]
- D-Wave (NYSE: QBTS) Advantage2TM Quantum Computer Now Available for U.S. Government Applications at Davidson Technologies - TradingView - November 11th, 2025 [November 11th, 2025]
- Superconducting Pairing Correlations Measured on Quantum Computer in Three Regimes of Fermi-Hubbard Models - Quantum Zeitgeist - November 11th, 2025 [November 11th, 2025]
- 'This is easily the most powerful quantum computer on Earth': Scientists unveil Helios, a record-breaking quantum system - Live Science - November 10th, 2025 [November 10th, 2025]
- Helios-1: New quantum computer is on the path to unravelling superconductivity - New Scientist - November 10th, 2025 [November 10th, 2025]
- Princeton puts quantum computing on the fast track with new qubit - Princeton University - November 7th, 2025 [November 7th, 2025]
- Here's How Hot Quantum Stocks Have Been LatelyAnd What to Know About Them - Investopedia - November 7th, 2025 [November 7th, 2025]
- SkyWater Technology and QuamCore Announce Collaboration to Fabricate Digital Superconducting Controller for Scalable Quantum Computing - Business Wire - November 7th, 2025 [November 7th, 2025]
- Quantum computing jolted by DARPA decision on most viable companies - Fast Company - November 7th, 2025 [November 7th, 2025]
- Quantum Could Be Techs Next Big Thing. But for Investors, Its All About Timing. - The Wall Street Journal - November 7th, 2025 [November 7th, 2025]
- Silicon Quantum Computing Selected by DARPA to Advance into 2nd Stage of Quantum Benchmarking Initiative - HPCwire - November 7th, 2025 [November 7th, 2025]
- Beyond the Hype: Quantum Computers Start Solving Real Problems - USC Viterbi School of Engineering - November 7th, 2025 [November 7th, 2025]
- Alumnus, leader in quantum computing to deliver inaugural joint colloquium - W&M News - November 7th, 2025 [November 7th, 2025]
- IBM Advances to Next Phase of DARPA Quantum Benchmarking Initiative - PR Newswire - November 7th, 2025 [November 7th, 2025]
- Universal Coupler Promises to Cut the Costs of Photonic Quantum Computers | Business | Nov 2025 - Photonics Spectra - November 7th, 2025 [November 7th, 2025]
- Atom Computing selected by DARPA for the next stage of exploring near-term utility-scale quantum computing with neutral atoms - PR Newswire - November 7th, 2025 [November 7th, 2025]
- Quantum Computing Explained: Unlocking the Future of Quantum Technology and Its Impact - Tech Times - November 7th, 2025 [November 7th, 2025]
- IBM Gets Selected for Stage B of DARPAs Quantum Computing Initiative - TipRanks - November 7th, 2025 [November 7th, 2025]
- Quantum computing: What's all the hype about? - marketplace.org - November 7th, 2025 [November 7th, 2025]
- Quantum Motion Selected by DARPA for Second Phase of the Quantum Benchmarking Initiative - insidehpc.com - November 7th, 2025 [November 7th, 2025]
- DARPAs Quantum Benchmarking Initiative targets utility-scale quantum by 2033 - TechInformed - November 7th, 2025 [November 7th, 2025]
- This Is the Smartest Stock to Buy to Take Advantage of the Quantum Computing Revolution -- and It Isn't IonQ, Rigetti Computing, or D-Wave Quantum -... - November 7th, 2025 [November 7th, 2025]
- Target This Quantum Computing Stock Before Another Rally - Forbes - November 7th, 2025 [November 7th, 2025]
- Singapores National Quantum Office and Quantinuum Forge Strategic Partnership to Accelerate Quantum Computing - The Quantum Insider - November 7th, 2025 [November 7th, 2025]
- SkyWater partners with QuamCore to advance quantum computing - Evertiq - November 7th, 2025 [November 7th, 2025]
- SkyWater Technology And QuamCore Announce Collaboration to Fabricate Digital Superconducting Controller For Scalable Quantum Computing - The Quantum... - November 7th, 2025 [November 7th, 2025]
- Canadas Nord Quantique Selected for 2nd Phase of DARPA Quantum Benchmarking Initiative - HPCwire - November 7th, 2025 [November 7th, 2025]
- Why People Confuse AI with Quantum Computing and Why You Should Care - Investopedia - November 7th, 2025 [November 7th, 2025]
- Exclusive | The Next Big Quantum Computer Has Arrived - The Wall Street Journal - November 7th, 2025 [November 7th, 2025]
- DARPAs Quantum Benchmarking Initiative (QBI) Advances with Eleven Teams Moving to Stage B - Quantum Computing Report - November 7th, 2025 [November 7th, 2025]
- Behold Helios, the Most Powerful Quantum Computer on the Planet - oodaloop.com - November 7th, 2025 [November 7th, 2025]
- The Next Big Quantum Computer Has Arrived - oodaloop.com - November 7th, 2025 [November 7th, 2025]
- Government showcases UK quantum computing pledge - Computer Weekly - November 7th, 2025 [November 7th, 2025]
- Behold Helios, the Most Powerful Quantum Computer on the Planet - Gizmodo - November 7th, 2025 [November 7th, 2025]
- Quantum Computing Stocks: Q3 Earnings Preview - Investor's Business Daily - November 3rd, 2025 [November 3rd, 2025]
- Quantum computers reveal that the wave function is a real thing - New Scientist - November 3rd, 2025 [November 3rd, 2025]
- You Won't Believe What Elon Musk Just Said About Quantum Computing (Spoiler Alert: It's Good News) - Nasdaq - November 3rd, 2025 [November 3rd, 2025]
- The US government announces strategic 'prosperity deals' with Japan and South Korea to 'drive breakthroughs' in AI, quantum computing, and more - PC... - November 3rd, 2025 [November 3rd, 2025]
- Are Quantum Computing Stocks in a Bubble? - The Motley Fool - November 3rd, 2025 [November 3rd, 2025]
- Quantum technology is coming to the real world - Financial Times - November 3rd, 2025 [November 3rd, 2025]
- The Donald Trump Administration May Want Stakes in Quantum Computing Stocks IonQ, Rigetti Computing, and D-Wave Quantum -- and That May Be Terrible... - November 3rd, 2025 [November 3rd, 2025]
- IBM Stock Is Outperforming Nvidia's This Year. Are Shares a Buy? - The Motley Fool - November 3rd, 2025 [November 3rd, 2025]
- An Epic Reversal Is Coming for Quantum Computing Stocks IonQ, Rigetti Computing, and D-Wave Quantum, Based on a Time-Tested Indicator - The Motley... - November 3rd, 2025 [November 3rd, 2025]
- Saturday Citations: Test flight of the X-59; a confounding quantum calculation; the universe is not simulated - Phys.org - November 3rd, 2025 [November 3rd, 2025]
- What will change in 2026? Brazil will have its first quantum computer, coming from China with a US$10 million investment. - CPG Click Petrleo e Gs - November 3rd, 2025 [November 3rd, 2025]
- Cloud platforms keep breaking down, and this time its quantum - Cybernews - November 3rd, 2025 [November 3rd, 2025]
- Time to Invest in Quantum Computing Stocks - Cabot Wealth Network - November 3rd, 2025 [November 3rd, 2025]
- Imperial Researchers Win Top Prizes For Quantum-AI Advances - Quantum Zeitgeist - November 3rd, 2025 [November 3rd, 2025]
- Quantum Circuits Harnesses Power of Data to Deliver New Class of Advanced Quantum Computing Solutions with NVIDIA - HPCwire - November 3rd, 2025 [November 3rd, 2025]
- NVIDIA Bridges Classical and Quantum Computing with NVQLink | Business | Oct 2025 - Photonics Spectra - November 3rd, 2025 [November 3rd, 2025]
- 3 Reasons to Buy This Under-the-Radar Quantum Computing Stock Today - Yahoo Finance - October 28th, 2025 [October 28th, 2025]
- What's the Best Quantum Computing Stock to Buy? It Just Became Crystal Clear (Hint: It's Not IonQ). - The Motley Fool - October 28th, 2025 [October 28th, 2025]
- 3 Reasons to Buy This Under-the-Radar Quantum Computing Stock Today - The Motley Fool - October 28th, 2025 [October 28th, 2025]
- Move Over, IonQ, Rigetti Computing, and D-Wave Quantum -- There's a Much Smarter Way to Invest in the Quantum Computing Revolution - Nasdaq - October 28th, 2025 [October 28th, 2025]
- Without Question, These Are the 2 Safest Quantum Computing Stocks to Buy (Hint: Not Rigetti Computing) - The Motley Fool - October 28th, 2025 [October 28th, 2025]
- UC Merced Leads National Effort to Unlock Quantum Secrets of Twisty Molecules - University of California, Merced - October 28th, 2025 [October 28th, 2025]
- Quantum computer demonstrates controlled advantage over supercomputer for the first time - warpnews.org - October 28th, 2025 [October 28th, 2025]
- Quantum Computing Stocks D-Wave, IonQ, and Rigetti Talk With Trump Administration About Equity Stakes. Is It Time to Buy? - The Motley Fool - October 28th, 2025 [October 28th, 2025]
- IBM Stock Surges 8% As It Expands Quantum Computing Capabilities with AMD Chip - TIKR.com - October 28th, 2025 [October 28th, 2025]
- Without Question, These Are the 2 Safest Quantum Computing Stocks to Buy (Hint: Not Rigetti Computing) - Nasdaq - October 28th, 2025 [October 28th, 2025]
- Electrons can now be controlled to build smarter quantum devices - Interesting Engineering - October 28th, 2025 [October 28th, 2025]
- Google announces a breakthrough that could bring quantum computing into everyday life - Dagens.com - October 28th, 2025 [October 28th, 2025]
- Quantum computing may be tech investings next big thing, but picking winners is a challenge - The Globe and Mail - October 28th, 2025 [October 28th, 2025]
- Move Over, IonQ, Rigetti Computing, and D-Wave Quantum -- There's a Much Smarter Way to Invest in the Quantum Computing Revolution - The Motley Fool - October 28th, 2025 [October 28th, 2025]
- Think It's Too Late to Buy IonQ Stock? Here's the 1 Reason Why There's Still Time. - The Motley Fool - October 28th, 2025 [October 28th, 2025]
- QTUM: Capturing The Synergistic Relationship Between Quantum Computing And AI - Seeking Alpha - October 28th, 2025 [October 28th, 2025]
- IonQ (IONQ): Evaluating Valuation After U.S. Government Interest and Quantum Computing Breakthroughs - simplywall.st - October 28th, 2025 [October 28th, 2025]
- Tech in 2035: The Future of AI, Quantum, and Space Innovation - DirectIndustry e-Magazine - October 28th, 2025 [October 28th, 2025]
- Commentary: China is closing the quantum technology gap - CNA - October 26th, 2025 [October 26th, 2025]
- How quantum computing could become the next frontier in national security - MarketWatch - October 26th, 2025 [October 26th, 2025]
- IBM says conventional AMD chips can run quantum computing error correction algorithm - Reuters - October 26th, 2025 [October 26th, 2025]
- Exclusive | Trump Administration in Talks to Take Equity Stakes in Quantum-Computing Firms - The Wall Street Journal - October 26th, 2025 [October 26th, 2025]
- This Quantum Computing Stock Is Up 3,000% Over the Last Year, and the CEO Just Cashed Out. Are Retail Investors Fueling a Bubble? - AOL.com - October 26th, 2025 [October 26th, 2025]
- AMD Stock Surges on IBM Quantum Partnership and Major AI Deals - CoinCentral - October 26th, 2025 [October 26th, 2025]
- Quantum Teleportation Was Achieved Over The Internet For The First Time - Currently.com - October 26th, 2025 [October 26th, 2025]
- IBM's boffins run a nifty quantum error-correction algorithm on standard AMD FPGAs, and it is' 10 times faster than what is needed' research propels... - October 26th, 2025 [October 26th, 2025]
- Googles quantum computer just achieved a massive breakthrough: Verifiable Quantum Advantage - Chrome Unboxed - October 26th, 2025 [October 26th, 2025]
- Forthcoming IBM Paper Expected to Show Quantum Algorithm Running on Inexpensive AMD Chips - The Quantum Insider - October 24th, 2025 [October 24th, 2025]
- Why AMD and IBM Shares Just Took Quantum Leaps to Record Highs? - Investopedia - October 24th, 2025 [October 24th, 2025]
- 1984 Was Supposed to Be Fiction - Brownstone Research - October 24th, 2025 [October 24th, 2025]