Atom Computing key facts
as of Oct 2026- Developer of quantum computers designed for scientific and industrial purposes.
- Atom Computing is valued at approximately $752.0M as of Oct 2026, set at its Series C, Mar 2026; nothing has traded since, per PrivateMarketView’s mark.
- It has raised $272.0M across 6 recorded rounds; the latest was Series C ($182.0M) in Mar 2026.
- Notable investors include Alumni Ventures, US National Science Foundation, Gaingels, BoxGroup, Liquid 2 Ventures — 34 tracked in total.
- 2 investment vehicles were formed to buy Atom Computing shares in the last 12 months, reporting $4.0M sold to 160 investors, per SEC Form D filings.
- Atom Computing has filed 2 Form Ds with the SEC since 2021, most recently Jan 2022 ($58.8M sold to 18 investors).
- Status: Privately Held (backing).
Valued at $752.0M at its Series C, Mar 2026. Nothing has traded since.
- ·Post-money valuations for 5 rounds
- ·The complete investor list: 34 names
- ·Watch Atom Computing: the Monday email on marks, rounds and moves
Atom Computing funding rounds
6 roundsVehicles formed to buy Atom Computing shares
secondary demand · SEC Form D filingsIn the last 12 months, 2 investment vehicles were formed to buy Atom Computing shares, reporting $4.0M sold to 160 investors across 2 sponsors. Most recent filing Mar 2026.
Membership and data by Private Market View
Who backs Atom Computing
34+Membership and data by Private Market View
Atom Computing valuation
Atom Computing was valued at $752 million at its Series C in Mar 2026. That is the last priced event on record: no secondary trade or institutional fund mark has moved the figure since.
How much has Atom Computing raised?
Atom Computing has raised $272 million across 6 recorded rounds since 2018. The largest was a $980,000 grant in Jan 2020; the most recent was an $182 million Series C in Mar 2026. 5 of the rounds disclosed a post-money valuation.
Atom Computing has filed 2 Form Ds with the SEC since 2021, most recently in Jan 2022 ($58.8 million sold to 18 investors).
Institutional holders and vehicles
In the last 12 months, 2 investment vehicles were formed to buy Atom Computing shares, reporting $4 million sold to 160 investors across 2 sponsors, per SEC Form D filings (most recent Mar 2026).
Atom Computing investors
34 investors are on record for Atom Computing, including Alumni Ventures, US National Science Foundation, Gaingels and BoxGroup. By type, the record holds 23 venture capital firms and 1 hedge fund. The Series C in Mar 2026 drew 5 investors.
About Atom Computing
Developer of quantum computers designed for scientific and industrial purposes. The company's platform utilizes arrays of optically-trapped neutral atoms that are cooled and controlled wirelessly via lasers, featuring nuclear-spin qubits with high-fidelity gate operations, industry-leading coherence times, and advanced mid-circuit measurement capabilities, enabling researchers and businesses to explore complex quantum algorithms and achieve scalable, error-corrected computational breakthroughs.
- Sector
- Information Technology
- HQ
- Berkeley, CA, United States
- Founded
- 2018
- Employees
- 110
- Website
- atom-computing.com/
- Ownership
- Privately Held (backing)
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