Justin Zeefe
InvestorFounderInvestor at Green Flag · Board director at Swarmer
Los Angeles Metropolitan Area
FoundedSwarmer
About
Founder and operator with deep defense experience.
Board director at Swarmer
Intro paths
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In turn, Justin can intro founders to Swarmer's investors below.
Swarmer's investors · 2
Co-founders at Swarmer
SK
Serhii KupriienkoExecutive Officer, Director
AF
Alexander FinkExecutive Officer, Director
Experience
- Green Flag VenturesFounding Partnercurrent2022 — presentLos Angeles, California, United States
- SwarmerBoard Member (NASDAQ: SWMR)current2025 — present
- SwarmerSeed (and Series A) Investorcurrent2024 — present
- NisosCo-Founder & Board Member (CEO ‘15-‘20)current2015 — present
- MaXon SystemsSeed Investorcurrent2026 — present
- BaBayte OÜSeed Investor (Lead)current2026 — present
- Falcons, LLCSeed Investor (Lead)current2025 — present
- TELETACTICASeed Investorcurrent2025 — present
- HIMERASeed Investorcurrent2024 — present
- Kara Dag TechnologiesSeed Investor (Lead)current2024 — present
- AstraNavSeed Investorcurrent2023 — presentUnited States
- European Defense Investor NetworkMembercurrent2023 — presentEurope
- Anduril IndustriesInvestor (SERIES D) [EXITED POSITION]2021 — 2025
- U.S. GovernmentOperations Officer2004 — 2014Worldwide (Including multiple warzone deployments and overseas postings)
- Bethesda-Chevy Chase Rescue SquadEmergency Medical Technician (Volunteer)2003 — 2008Bethesda, MD
- Williams & Connolly LLPAttorney2002 — 2004Washington DC-Baltimore Area
Education
- Boston University School of LawJ.D., International Law1999 — 2002
- The Ohio State UniversityB.A. (Honors College of Arts & Sciences), Political Science1995 — 1999
Skills & more
IntelligenceStrategic Planning8Strategy8Analysis3Management5Leadership2Dual use4Startups5Cyber3Artificial Intelligence (AI)Seed Capital1Entrepreneurship1
+12 more
UkraineManaged IntelligenceVenture CapitalFundraisingTeam BuildingProfitable GrowthEnterprise Risk ManagementGovernment LawContract NegotiationsMilitary LawGovernment ContractsGovernment ProcurementLanguages English · German
- Emergency Medical Technician — District of Columbia, DOH
- Member of the Bar (INACTIVE) — District of Columbia
From Justin's professional profile.
Deals · 7
SwarmerBoard seat
via Green Flag · filed Oct 2025 · $19.7M raise
HimeraSolo GP
via Green Flag
TeletacticaSolo GP
via Green Flag
BabayteSolo GP
via Green Flag
FalconsSolo GP
via Green Flag
Kara Dag TechnologiesSolo GP
via Green Flag
MaXon SystemsSolo GP
via Green Flag
Attribution from SEC filings, press coverage, and firm rosters. Some rows are inferred. Not right? Tell us.
Colleagues at Green Flag
Frequently asked questions
- Where does Justin Zeefe work?
- Justin Zeefe is at Green Flag and Founder at Swarmer.
- What companies did Justin Zeefe found?
- Justin Zeefe founded Swarmer.
Founder mafias
The Ohio State University mafia29
Also came through, then founded or led a company.
Ray GrieselhuberBachelor of Arts - BAFounded Functionize +1Kevin UnkrichBachelor’s DegreeFounded Superpower +1John RiceBSFounded Akebia Therapeutics +1Jason KaliraBSBAFounded ParsableVibhu MittalMSFounded EdmodoSean MinterBachelor of Science (BS)Founded AmplifAI
+ 22 more
Boston University School of Law mafia2
Also came through, then founded or led a company.
Same school
Also attended Boston University School of Law19
Justin NahamaGeneral Partner at The Veteran FundDavid LePortfolio Success Team at Autotech VenturesGiff CarterInvestor at Valar Ventures LlcSteven LeunertPartner and CFO at Apollo Health VenturesMarcy AxelradChief Operating Officer at MassChallenge MexicoPat CostelloMD & General Counsel at The Resource Group
+ 13 more
Also attended The Ohio State University109
Keatten SmithCapital Formation Coordinator at March Capital PartnersSara Risch, PhDAdvisor at CincyTechWill McKelveyPrincipal at Lerer HippeauLaura SebastianiVP of Finance at Scale Venture PartnersSuresh BalasubramanianInvestor at Storm VenturesJohn D. SimonExecutive Venture Partner at Caduceus Capital Partners
+ 103 more
Shared employers
Also worked at Swarmer2
Also worked at Anduril Industries34
Hemant TanejaCEO & Managing Director of General CatalystTrae StephensPartner at Founders Fund and co-founder of AndurilKatherine BoyleGeneral Partner at Andreessen Horowitz (American Dynamism)Paul KwanInvestment Team at General CatalystMark XuInvestor at Index VenturesMichael RobinsonInvestor at Craft Ventures
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+ 28 more