# Quantum Circuits funding: rounds and investors > Quantum Circuits has raised $78M across 2 rounds since 2017. Investors include Canaan, Sequoia Capital and ARCH Venture Partners. Every round with its source. Source: https://millionrounds.com/company/quantum-circuits (Millionrounds; every figure on the page links to its filing or article) United States · [Series B startup](https://millionrounds.com/companies) # Who invested in *Quantum Circuits* 2 rounds we have observed, with the 8 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it. IT Services Funding summary Updated 26 Oct 2026 **$78M** raised across 2 rounds since 2017, from 2 sources **$18M** Series A **$60M** Series B - **Latest round:** Series B, $60M May 2024 - **Step-up i:** 3.3× - **Investors:** 8 See who backed them ## The funding story Each circle is a round, placed by date and sized by amount. The line above is the running total. 2018 2019 2020 2021 2022 2023 2024 **$18M** Series A **$60M** Series B - **First round:** Series A, $18M - **Biggest round:** $60M - **Between rounds:** 6.5 years ## The rounds - **May 2024** Series B **$60M** *4 new* *1 returning* [Sequoia Capital](https://millionrounds.com/fund/sequoia-capital) [Canaan](https://millionrounds.com/fund/canaan-partners) [ARCH Venture Partners](https://millionrounds.com/fund/arch-venture-partners) [Connecticut Innovations](https://millionrounds.com/fund/connecticut-innovations) [Tribeca Venture Partners](https://millionrounds.com/fund/tribeca-venture-partners) Source recorded SEC filing: $27M sold, first sale Feb 2024 - **Nov 2017** Series A **$18M** *4 new* [Canaan](https://millionrounds.com/fund/canaan-partners) [Osage University Partners](https://millionrounds.com/fund/osage-university-partners) [Fitz Gate Ventures](https://millionrounds.com/fund/fitz-gate-ventures) Sequoia/ Tribe Reported by Boston ## Founders and team From Quantum Circuits's own website and the SEC filings it signed: 2 founders, 9 on the team. **Luigi Frunzio** Chief Technologist & Co-Founder **Rob Schoelkopf** Chief Scientist & Co-Founder - **Ray Smets** President & CEO - **Allen Dinh** Chief Financial Officer - **Andrei Petrenko** Head of Product - **Harvey Moseley** VP of Quantum Hardware Engineering - **Mowaffak Midani** Head of Partnerships & Alliances - **Neil Wu Becker** Head of Marketing - **Stephen Horton** VP of Software Engineering - **Sean Weinberg** Director of Applications - **Martin Mengwall** Executive Officer i On the board, as filed i *Brendan Dickinson* *Corey Ritter* *Robert Schoelkopf* *Stephen Knight* *William Coughran* Advisers *Tom Lubinski* ## Who was in which round The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led. **Series A** 2017 **Series B** 2024 [Canaan](https://millionrounds.com/fund/canaan-partners) [Sequoia Capital](https://millionrounds.com/fund/sequoia-capital) [ARCH Venture Partners](https://millionrounds.com/fund/arch-venture-partners) [Connecticut Innovations](https://millionrounds.com/fund/connecticut-innovations) [Tribeca Venture Partners](https://millionrounds.com/fund/tribeca-venture-partners) [Osage University Partners](https://millionrounds.com/fund/osage-university-partners) [Fitz Gate Ventures](https://millionrounds.com/fund/fitz-gate-ventures) Sequoia/ Tribe ## Everyone who backed them [Canaan](https://millionrounds.com/fund/canaan-partners) VC firm **2** rounds [Sequoia Capital](https://millionrounds.com/fund/sequoia-capital) VC firm **1** round [ARCH Venture Partners](https://millionrounds.com/fund/arch-venture-partners) VC firm **1** round [Connecticut Innovations](https://millionrounds.com/fund/connecticut-innovations) Government **1** round [Tribeca Venture Partners](https://millionrounds.com/fund/tribeca-venture-partners) VC firm **1** round [Osage University Partners](https://millionrounds.com/fund/osage-university-partners) VC firm **1** round [Fitz Gate Ventures](https://millionrounds.com/fund/fitz-gate-ventures) VC firm **1** round Sequoia/ Tribe no record of our own yet **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=quantum-circuits). ## Quick answers about Quantum Circuits ### Who invested in Quantum Circuits? Quantum Circuits's investors include Canaan, Sequoia Capital, ARCH Venture Partners, Connecticut Innovations and Tribeca Venture Partners, and 3 more on record. ### How much has Quantum Circuits raised? Quantum Circuits has raised $78M across 2 rounds since 2017. ### When did Quantum Circuits last raise? Quantum Circuits's most recent round was a Series B of $60M in May 2024. ### What was Quantum Circuits's biggest round? Its most recent round, $60M in May 2024, is also its largest on record. ### Who backed Quantum Circuits first? Quantum Circuits's first round on record, in Nov 2017, was backed by Canaan, Osage University Partners and Fitz Gate Ventures and 1 others. ### What stage is Quantum Circuits at? Quantum Circuits's latest named round is a Series B, in May 2024. ### Where is Quantum Circuits based? Quantum Circuits is based in the United States. ## Companies like Quantum Circuits In the same sector, and raised in the last eighteen months. [**Chariot Claims** $23M · Oct 2026](https://millionrounds.com/company/chariot-claims)[**Subeca** $9.0M · Oct 2026](https://millionrounds.com/company/subeca)[**FlexCompute** $53M · Oct 2026](https://millionrounds.com/company/flexcompute)[**Negosh** $3.1M · Oct 2026](https://millionrounds.com/company/negosh)[**StarLifter** $4.0M · Oct 2026](https://millionrounds.com/company/starlifter)[**Litewave.AI** $1.7M · Oct 2026](https://millionrounds.com/company/litewave-ai) ## Find investors like these Search every investor by what they have actually funded, then narrow to your stage and market. Free. Open the investor searchOr these rounds in the app