United States · 
What does Marlinspike invest in?
Marlinspike invests most often at Series A and Series B (100% of the rounds on record), in sectors such as Dual-use, Dual Use and Defence.
Marlinspike highlights
- 01
3 cheques in the last 12 months
- 02
Mostly Series A and Series B: 100% of its rounds
- 03
Led 2 rounds
What they do
Filed 1 private fund offerings with the SEC, the most recent in 2025-10From their own website
- Type
- VC firm (from a list, unverified)
- Cheque size
- $500K – $5.0M as they say
- Stages
- SeedSeries ASeries BGrowth
- Sectors
- Dual-useDual UseDefence
- Based in
- Washington, United States
- Cold pitches
- Not stated
The record
Every round we can evidence, newest first3 appearances
- 2026
3 rounds
- Oct
- Jun
- May
An announcement gives the size of the round, not the size of this investor's cheque: the only rounds that imply a cheque are those where they were the sole named investor.
The team
Named by the firm itself, on a filing, its Form ADV or its company registration5 named
MPMark PowellManager of the Sole MemberiFiling they signed
MNMislav n/a TolusicManaging Member of the General PartneriFiling they signed
NNNeil n/a KeeganManaging Member of the General PartneriFiling they signed
TBTim BuzbyDirectoriFiling they signed
TLTimothy Lawrence BuzbyExecutive OfficeriFiling they signed
We also hold 12 people at this firm from the lists this database was built from: a weaker source than the filings, since a list does not say when a title ended. Login to see them.
What they claim to have backed
From their own portfolio page (on their website)
19 of 25 we have independently watched raise
AndurilChaosChariotdefenseElroyairExialabsFoundryroboticsGeckoroboticsHyporiJetzeroKindoKodiakLayuppartsLazarusMarlinspikeMissionObservablePalantirShieldVoyagertechnologiesBrightCambium-usaRenderedRenesasVolundmfgWithmagenta
Weaker than a round we watched, stronger than a list somebody sold us. A firm is far less willing to put a company on its own site that it never funded.