Twin Prime
Twin Prime AI, Inc.
Twin Prime is a frontier lab developing AI models for defense and security
twinprime.ai · New York, NY
Funding event
The round itself, as filedInferred stageSeries A
Sold of offered$10.0M of $10.0M
Filed2026-08-14
Days since filing51
- Exemption claimed
- Rule 506(b)
- First-ever Form D
- Yes
- Date of first sale
- 2026-02-10
Investors
No investors named: Form D does not list them
Officers on the filing
Names and roles as filed; addresses are never stored- Stephane Arsene SezerExecutive Officer · Director · Promoter
- Mikolaj FirlejDirector
Health flags
Three flags, each with the raw inputs behind it · as of 2026-10-03UndersubscribedNot flagged100% sold7.7 months since first sale
Prior raiseNot flaggedPrior raise not known—
AmendedNot flaggedNo amendmentNo D/A on file
Open roles
On the employer's own careers page · checked 2026-09-246
Pre-posting windowNot enough dataShown once this sector and stage have 20 observed lags from filing to first posting.
- US Growth LeadSEP 24Washington, D.C., USA · GTM · FullTime · open 10 days
- DevOps EngineerSEP 24Athens, Greece · Engineering · FullTime · open 10 days
- Software EngineerSEP 24New York City, USA · Engineering · FullTime · open 10 days
- Engineering LeadSEP 24Athens, Greece · Engineering · FullTime · open 10 days
- AI ResearcherSEP 24New York City, USA · Research · FullTime · open 10 days
- Strategy & Operations LeadSEP 24Athens, Greece · Operations · FullTime · open 10 days
Also raised in Defense & space
Same sector, 28 days to 2026-10-04Varda Space IndustriesSeries D · $251M · El Segundo, CAQuietTwentySeries C+ · $131M of $131M · Arlington, VAHiring actively
10 rounds in Defense & space in the 28 days to 2026-10-03, against 7 in the 28 days before.