How much funding has Quantum Circuits raised?

Quantum Circuits has raised $104.5M in total funding, most recently a Series B round.

Who are Quantum Circuits's investors?

Quantum Circuits's investors include Sequoia Capital, ARCH Venture Partners, F-Prime Capital, Canaan Partners, Hither Creek Ventures.

When was Quantum Circuits founded?

Quantum Circuits was founded in 2015.

Where is Quantum Circuits headquartered?

Quantum Circuits is headquartered in New Haven, Connecticut, United States.

What industry is Quantum Circuits in?

Quantum Circuits operates in Hardware, Manufacturing.

How many employees does Quantum Circuits have?

Quantum Circuits has 11-50 employees.

Quantum Circuits

Acquired

Stability. Repeatability. Consistency.

New Haven, United States · Founded 2015 · $104.5M raised

Hardware

Manufacturing

Headquarters: New Haven, Connecticut
Employees: 11–50
Founded: 2015
Business Model: B2B

Website: quantumcircuits.com
Total Funding: $104.5M
Last Round: $60.0M Series BAug 2024
Rounds: 3

About

Quantum Circuits Inc. (QCI) built fault-tolerant quantum computers based on superconducting Dual-Rail Cavity Qubits with built-in error detection. QCI pioneered the industry's first dual-rail qubit with quantum error detection (QED), real-time control flow (RTCF), and error detection handling enabling high-fidelity algorithm execution. Founded at Yale University in 2015 by applied physicist Robert Schoelkopf, QCI was acquired by D-Wave Quantum Inc. in January 2026 for $550 million, forming the world's first dual-platform quantum computing company.

Summary

Quantum Circuits is a Hardware company based in New Haven, United States, founded in 2015. It has raised $104.5M in total across 3 rounds, most recently a $60.0M Series B round in Aug 2024. Investors include Sequoia Capital, ARCH Venture Partners and F-Prime Capital.