Key facts
- Arcjet’s last known valuation is $39.0M (May 2025).
- It has raised $12.0M; the latest was Early Stage VC ($8.5M) in May 2025.
- Notable investors include Andreessen Horowitz, Seedcamp, Plural, Feross Aboukhadijeh, Geoff Belknap — 11 tracked in total.
- Status: Privately Held (backing).
- ·The complete investor list — 11 names
- ·Watchlist + deal alerts for Arcjet
- ·The full record, as it builds
Funding rounds
No funding rounds for Arcjet are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.
About Arcjet
Developer of a security platform designed to protect applications against security risks. The company's platform provides a quality developer experience along with security features like protecting against spam or fraudulent signups, blocking unwanted bots, and preventing abuse of the application programming interface, enabling developers to protect applications against a range of security risks so they can get on with everything else.
- Sector
- Information Technology
- HQ
- San Francisco, CA, United States
- Founded
- 2023
- Employees
- 6
- Website
- arcjet.com/
- Ownership
- Privately Held (backing)
Arcjet doesn't have a composite mark yet — a PA Mark is published once enough pricing inputs exist (trade prints, fund marks, round prices). The rest of the record below builds toward it.
Recorded secondary trades
No secondary trades in Arcjet shares have been recorded yet. When a print lands — third-party, direct report, or platform — it appears here with structure, source, and price.
Institutional fund marks
No SEC-registered fund has reported a fair-value mark on Arcjet in its N-PORT filings yet. We sweep new filings monthly.