Funding round
Atom Computing Growth
Reported as "Growth Equity"
Atom Computing, which works in quantum computer hardware manufacturing in Berkeley, raised $300M in a Growth round announced on 16 Jun 2026. It is Atom Computing's fourth venture round on record; the one before was a Series B in Jan 2022.
$300M
Amount raised
of which $100M debt
Not disclosed
Post-money valuation
Valuation
What this round says about the price
Atom Computing did not disclose a valuation in this round. It came 53 months after Atom Computing's Series B. It is 63% of the $480M Atom Computing has raised in the venture rounds on record. Atom Computing raised again: a Series C round of $100M in Jun 2026.
Use of proceeds
What the money is for
According to the announcement, the money goes to product development and scaling operations.
- Product development
- Scaling operations
Comparable rounds
How it compares
5 Growth rounds in Device Manufacturing within a year either side disclosed an amount; the median was $158M, and this round was 1.9 times the median. The closest in time, other companies' Growth rounds in Device Manufacturing:
| Company | Announced | Amount | Post-money | Led by |
|---|---|---|---|---|
| Rebellions Device Manufacturing | 30 Mar 2026 | $400M | $2.34B | Mirae Asset Financial Group and Korea National Growth Fund |
| Device Manufacturing | 15 Oct 2026 | $100M | $700M | not named |
| Device Manufacturing | 27 Jan 2026 | $11M | not disclosed | not named |
| Device Manufacturing | 13 Nov 2025 | $158M | not disclosed | FII HOLDINGS USA INC. |
| Device Manufacturing | 30 Jul 2025 | $300M | $5.00B | Blackstone |
Sources
Where this comes from
Reported by 2 sources.
Questions
Frequently asked
How much did Atom Computing raise in its Growth round?
Atom Computing raised $300M in its Growth round, announced in Jun 2026.
What was Atom Computing's valuation at the Growth round?
It was not disclosed.
How does it compare with other Growth rounds in Device Manufacturing?
5 Growth rounds in Device Manufacturing within a year either side disclosed an amount; the median was $158M, and this round was 1.9 times the median.
Did Atom Computing raise again after this round?
Yes: a Series C round in Jun 2026 of $100M.