Quantum Circuits

Accelerating the path to fault-tolerant quantum computing with powerful dual-rail qubits with built-in error detection.

Latest funding

$60M Series B+ · August 16, 2024

Total raised: $78M across 2 sourced rounds

Acquired by DD-Wave Quantum on January 6, 2026 for $550M · barrons.com.

Website: quantumcircuits.com.

LinkedIn: quantum-circuits-inc.

Categories: Robotics and hardware Manufacturing and industrial.

Sectors: Computer, Hardware, Manufacturing, Quantum Computing, Software.

Stage: Series B+.

Based in: New Haven, United States.

Founded: 2015.

Total raised: $78M in 2 sourced rounds.

Last round: Aug 16, 2024 · 821 days ago.

Headcount: 101–250 employees.

On Recent Funding since: Sep 29, 2026.

Signals

Website registeredMar 9, 2005 (21 years old)

TIMELINE · MONEY RAISED

Raised $78M in 2 sourced rounds

Money raised, round by round (amounts linked to their source). Pins are dated signals; hover the icons for dates.

Date	Round	Amount	Lead	Source
Aug 16, 2024	Series B+	$60M	FF-Prime Capital	startupintros.com
Nov 14, 2017	Series A	$18M	CCanaan Partners	startupintros.com

BP
Brian Pusch Founder

LinkedIn
LF
Luigi Frunzio Founder
MD
Michel Devoret Founder

LinkedIn
RS
Rob Schoelkopf Chief Scientist & Co-Founder

LinkedIn · source: quantumcircuits.com
RS
Ray Smets President and CEO
AP
Andrei Petrenko Head of Product
HM
Harvey Moseley VP Hardware Engineering
JS
Johnathon Strenczewilk Senior Control Systems Technician
TL
Tom Lubinski Chief Software Architect

Sources and API

Every amount links to the page it came from. * Estimated from an accelerator's published standard deal, not a company-specific disclosure. How Recent Funding sources and verifies funding data. The same data as JSON: /api/v1/companies/quantum-circuits (get a free API key).