Funding round

Hermeus Series B
Hermeus, which works in hypersonic aircraft design and manufacturing in Atlanta, raised $100M in a Series B round announced on 10 Mar 2022, led by Sam Altman. 11 firms took part. It is Hermeus' second venture round on record; the one before was a Series A in Oct 2020.
$100M
Amount raised
Not disclosed
Post-money valuation
11
Investors
1 lead
Valuation
What this round says about the price
Hermeus did not disclose a valuation in this round. It came 17 months after Hermeus' Series A. It is 21% of the $466M Hermeus has raised in the venture rounds on record. Hermeus raised again 49 months later: a Series C round of $350M in Apr 2026, at $1.00B post-money.
Investors
Who put money in
Sam Altman led the round with 10 other firms.
Lead investor
- Sam Altman
Also in the round
- Founders Fund backs 368 venture-backed companies new investor
- In-Q-Tel backs 97 venture-backed companies new investor
- Khosla Ventures backs 396 venture-backed companies new investor
- backs 169 venture-backed companies new investor
- backs 64 venture-backed companies new investor
- backs 141 venture-backed companies new investor
- AJI Capital new investor
- Circadian new investor
- Pallas Ventures new investor
- RTX Ventures new investor
Use of proceeds
What the money is for
According to the announcement, the money goes to product development, scaling operations and working capital.
- Product development
- Scaling operations
- Working capital
Comparable rounds
How it compares
7 Series B rounds in Aircraft Parts & Services within a year either side disclosed an amount; the median was $32M, and this round was 3.1 times the median. The closest in time, other companies' Series B rounds in Aircraft Parts & Services:
| Company | Announced | Amount | Post-money | Led by |
|---|---|---|---|---|
| Aircraft Parts & Services | 20 Jul 2022 | $68M | not disclosed | not named |
| Aircraft Parts & Services | 1 Jul 2022 | $7.7M | not disclosed | not named |
| Skyryse Aircraft Parts & Services | 27 Oct 2021 | $200M | $650M | Fidelity Management & Research Company and Monashee Investment Management |
| Aircraft Parts & Services | 19 Oct 2021 | $26M | not disclosed | Mirai Creation Fund |
| Aircraft Parts & Services | 1 Nov 2022 | $32M | not disclosed | Tesi |
| Aircraft Parts & Services | 15 Apr 2021 | $40M | $400M | Blackhorn Ventures |
| Aircraft Parts & Services | 21 Mar 2023 | $22M | not disclosed | not named |
Sources
Where this comes from
Reported by 4 sources.
Questions
Frequently asked
How much did Hermeus raise in its Series B round?
Hermeus raised $100M in its Series B round, announced in Mar 2022.
Who led Hermeus' Series B round?
Sam Altman led it, with Founders Fund, In-Q-Tel, Khosla Ventures, Canaan and Bling Capital and 5 more.
What was Hermeus' valuation at the Series B round?
It was not disclosed.
How does it compare with other Series B rounds in Aircraft Parts & Services?
7 Series B rounds in Aircraft Parts & Services within a year either side disclosed an amount; the median was $32M, and this round was 3.1 times the median.
Did Hermeus raise again after this round?
Yes: a Series C round in Apr 2026 of $350M at $1.00B post-money.