Quantum Circuits, Inc. (QCI) is developing a full-stack quantum computing platform using superconducting devices and a modular, robust, and scalable architecture. QCI's mission is to build the first truly useful quantum computers.
Our novel approach to building quantum computers is based on technology developed over a decade of research at Yale University's world-class quantum labs. Our machines have built-in error correction, unique software features that enable lightning-fast algorithm execution, and multiple modes of operation to solve more algorithms than ever, all in one quantum computer.
Our novel approach to building quantum computers is based on technology developed over a decade of research at Yale University's world-class quantum labs. Our machines have built-in error correction, unique software features that enable lightning-fast algorithm execution, and multiple modes of operation to solve more algorithms than ever, all in one quantum computer.
Location: United States, Connecticut, New Haven
Employees: 11-50
Total raised: $78M
Founded date: 2015
Investors 7
| Date | Name | Website |
| 22.05.2024 | Connecticu... | ctinnovati... |
| - | Tribeca Ve... | tribecavp.... |
| 26.03.2022 | ARCH Ventu... | archventur... |
| 23.01.2024 | F-Prime Ca... | fprimecapi... |
| - | Sequoia Ca... | sequoiacap... |
| - | Fitz Gate ... | fitzgate.c... |
| - | Canaan Par... | canaan.com |
Funding Rounds 2
| Date | Series | Amount | Investors |
| 19.08.2024 | Series B | $60M | - |
| 14.11.2017 | Series A | $18M | Sequoia Ca... |
Mentions in press and media 18
| Date | Title | Description |
| 24.07.2026 | Connecticut Innovations Generates Record $66.5 Million In Proceeds In FY2026 | Connecticut Innovations, the state’s strategic venture capital arm, announced a record fiscal year, generating $66.5 million in cash proceeds from a series of portfolio exits and a combined $76.1 million from all investment activities. Duri... |
| 01.07.2026 | D-Wave To Receive $1.5 Million NSF Grant To Strengthen U.S. Quantum Computing Leadership | D-Wave Quantum announced that it has been selected to receive a $1,566,250 grant from the U.S. National Science Foundation through the agency’s National Quantum Virtual Laboratory program. The funding will support D-Wave’s role as a key ind... |
| 07.01.2026 | D-Wave Quantum acquires ARCH-backed Quantum Circuits to accelerate the development of quantum computers | - |
| 10.12.2025 | Fitz Gate Ventures: Third VC Fund Closed, Bringing AUM To About $70 Million | Fitz Gate Ventures has closed its third venture capital fund, bringing the firm’s total assets under management to approximately $70 million as it continues to expand its early-stage investment activities across deep tech and other high-gro... |
| 19.08.2024 | Quantum Circuits: Yale Computing Solution Spinout Raises Over $60 Million (Series B) | Quantum Circuits announced it has secured a final Series B investment round of over $60 million. This funding round provides additional capital support as it prepares to commercialize its quantum systems with an industry first: error detect... |
| 19.08.2024 | Startups Take Longer To Close Rounds, As Funding Cliff Looms | 16 Shares Email Facebook Twitter LinkedIn The time lapse between funding rounds for early-stage startups has reached the highest point in more than a decade. That was the finding from a Crunchbase survey of U.S. companies that raised Series... |
| 16.08.2024 | Quantum Circuits Raises Over $60M in Series B Funding | Co-founder and Chief Scientist Rob Schoelkopf (left) with CEO and President Ray Smets. Quantum Circuits, a New Haven, CT-based developer of quantum computers, raised over $60M in Series B funding. The round was led by ARCH Venture Partners,... |
| 15.08.2024 | Quantum Circuits Inks $60M+ Series B Round | NEW HAVEN, CT, Quantum Circuits has secured a final Series B investment round of more than $60 million, >> Click here for more funding data on Quantum Circuits Inc >> To export Quantum Circuits Inc funding data to PDF and Excel... |
| 15.08.2024 | Quantum Circuits raises $60M to build scalable error-correcting quantum platform Your vote of support is important to us and it helps us keep the content FREE. One click below supports our mission to ... | Quantum Circuits Inc., a spinout from Yale University building a novel quantum computing platform, today announced it has raised more than $60 million in an early-stage funding round that will allow the company to commercialize its scalable... |
| 15.08.2024 | Quantum Circuits Secures More Than $60 Million in Series B Investment | Final Closing of Funding Round Follows Hiring of CEO Ray Smets, Reinforces Industry First That Paves Faster Path to Commercial-ready Quantum Computing – More Powerful Qubits With Built-in Error Detection NEW HAVEN, Conn., Aug. 15, 2024 /PRN... |
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