Determinate Systems
Determinate Systems, Inc.
The secure software supply chain for critical infrastructure.
determinate.systems · Boston, MA
Funding event
The round itself, as filedInferred stageSeries A
Sold of offered$15.3M of $15.3M
Filed2026-11-10
Days since filing3
- Exemption claimed
- Rule 506(b)
- First-ever Form D
- No
- Date of first sale
- 2026-10-27
Investors
No investors named: Form D does not list them
Officers on the filing
Names and roles as filed; addresses are never stored- Jeffrey MartensExecutive Officer · Director · Promoter
- Graham ChristensenExecutive Officer · Director · Promoter
- Eelco DolstraExecutive Officer · Director · Promoter
- Lenny PrussDirector
- Mitch CooneyDirector
Health flags
Three flags, each with the raw inputs behind it · as of 2026-11-13UndersubscribedNot flagged$15.3M of $15.3M sold0.6 months since first sale
Prior raiseNot flaggedRaised $15.3M against a prior $3.5M$3.5M prior raise, filed 2022-05-19
AmendedNot flaggedNo amendmentNo D/A on file
Open roles
On the employer's own careers page · checked 2026-11-110
Pre-posting windowNot enough dataShown once this sector and stage have 20 observed lags from filing to first posting.
No open roles foundWe read careers pages daily.
Also raised in AI & data
Same sector, 28 days to 2026-11-15falSeries A · $10.8M of $10.8M · San Francisco, CAHiring activelyPluraiSeed · $13.0M · New York, NYQuiet
27 rounds in AI & data in the 28 days to 2026-11-12, against 24 in the 28 days before.