Quantum Circuits

Active#18 worldwide · Quantum computers

Estimated valuation · Quantum computers · United States

Spun out of Yale, builds superconducting quantum computers based on dual-rail qubits with built-in error detection, offered on-premises and through cloud access.

Industrial, deeptech & space›Quantum computers quantumcircuits.com

HQUnited States

Last roundSeries B · Aug 2024

Estimated valuation

AI · Quantum computers ranking (worldwide)

≈ USD 310MUSD 210–460M · Hundreds of M$

Hundreds of k$

Millions $

Tens of M$

Hundreds of M$

Unicorn

Decacorn

Hectocorn

Anchor: Last known equity round: Series B · USD 60M · Aug 2024

An indicative editorial estimate produced by AI, imperfect by nature: neither a financial valuation nor investment advice. Only the market sets a company’s value. Method

Uback rankings

How the AI ranks →

Ranking	Tier	Rank	Edition	Next update
Quantum computers · worldwide	Top 46	#18	Edition 0 · Oct 2026	6 Dec 2026

Rank historyOct 2026 · #18 Quantum computersFirst edition: no movements yet.

Funding history

Date	Round	Amount	Type	Investors
Aug 2024	Series B	USD 60M	Equity	ARCH Venture Partners, F-Prime Capital, Sequoia Capital, Hither Creek Ventures, Canaan, Fitz Gate, In-Q-Tel, Osage University Partners

More than USD 60M, in two tranches.

Rounds as cited by Uback’s rankings. Equity, debt and grants are shown separately; only equity rounds count towards the valuation anchor.

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What the AI reads

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Last updated: Oct 2026Report an error

Uback is a content publisher and an aggregator of non-binding expressions of interest. It provides no investment advice, receives no mandate and takes part in no transaction. Rankings, ranges and brackets are editorial estimates produced by AI, purely indicative.