Quantum Circuits

New Haven, CT · Founded 2015 · Acquired/Merged (Operating Subsidiary)

Manufacturer of quantum computers intended to accelerate research and enable the scaling of quantum computing. Quantum Circuits is based in New Haven, CT and was founded in 2015. Its last known valuation is $550 million (Jan 2026). It has raised $125 million across 1 recorded round; the latest was a $26.6 million early-stage round in Feb 2024.

Last price · $/share
—
Implied valuation
$550.0M
Total raised
$125.4M
Last round
Early Stage VC
Feb 2024
What is Quantum Circuits worth?
$550.0Mlast known valuation

Quantum Circuits last raised $26.6M in its Early Stage VC (Feb 2024).

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Quantum Circuits funding history

1 rounds
DateRoundRaisedPost-money
Feb 2024Early Stage VC$26.6M▮
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Quantum Circuits valuation

Quantum Circuits's last known valuation is $550 million, from Jan 2026. The figure stands until a priced round, a secondary trade or an institutional fund mark prices the stock again.

How much has Quantum Circuits raised?

Quantum Circuits has raised $125 million in total; 1 of its rounds is on record. The largest on record was a $26.6 million early-stage round in Feb 2024.

Quantum Circuits has filed 3 Form Ds with the SEC since 2016, most recently in May 2024 ($26.6 million sold to 15 investors).

How Quantum Circuits's valuation is determined

Private company valuations aren’t quoted on an exchange — they’re established in moments: a priced funding round sets a post-money valuation, secondary trades print at a price per share, and SEC-registered funds holding the stock report fair-value marks in their N-PORT filings.

For Quantum Circuits, too few pricing signals exist to publish a composite mark; the figures above reflect the most recent observed valuation event. Full methodology →

Frequently asked about Quantum Circuits

What is Quantum Circuits worth?
Quantum Circuits's last known valuation is $550.0M.
How much has Quantum Circuits raised?
Quantum Circuits has raised $125.4M in total funding across 1 recorded rounds.
When did Quantum Circuits last raise?
Quantum Circuits last raised in Feb 2024 (Early Stage VC), raising $26.6M.