United States · 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.
2018201920202021202220232024
$18MSeries A$60MSeries B
United States · Series B startup
Who invested in Quantum Circuits
Funding summaryUpdated 26 Oct 2026
$78Mraised across 2 rounds since 2017, from 2 sources
$18MSeries A$60MSeries B
- Latest round
- Series B, $60MMay 2024
- Step-upi
- 3.3×
- Investors
- 8
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Series A, $18M Nov 2017
- Biggest round
- $60M Series B · May 2024
- Between rounds
- 6.5 years from the last two
The rounds
- May 2024Series B$60M4 new1 returning
Source recordedSEC filing: $27M sold, first sale Feb 2024
- Nov 2017
Founders and team
From Quantum Circuits's own website and the SEC filings it signed: 2 founders, 9 on the team.
- Ray SmetsPresident & CEO
- Allen DinhChief Financial Officer
- Andrei PetrenkoHead of Product
- Harvey MoseleyVP of Quantum Hardware Engineering
- Mowaffak MidaniHead of Partnerships & Alliances
- Neil Wu BeckerHead of Marketing
- Stephen HortonVP of Software Engineering
- Sean WeinbergDirector of Applications
- Martin MengwallExecutive Officeri
On the board, as filediBrendan DickinsonCorey RitterRobert SchoelkopfStephen KnightWilliam Coughran
AdvisersTom 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 A2017Series B2024
Canaan
Sequoia Capital
ARCH Venture Partners
Connecticut Innovations
Tribeca Venture Partners
Osage University Partners
Fitz Gate VenturesSequoia/ Tribe
CanaanSequoia CapitalARCH Venture PartnersConnecticut InnovationsTribeca Venture PartnersOsage University PartnersFitz Gate VenturesSequoia/ TribeEveryone who backed them
Sequoia/ Tribeno record of our own yet1round
Missing a round, or an investor who was in one? Tell us.
Quick answers about Quantum Circuits
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.
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