Find your path to Garrett
177 people in our graph share verified history with Garrett — schools, employers, funds. One of them is your warm intro.
Jun LiunlockedGarrett: together at Band of Angels (2017–2026)
Garrett: together at Irrigreen
×4Garrett: together at Pepperdine University
×6Garrett: together at United States Air Force Academy
About
Garrett Gilbertson is a decorated Afghan War veteran whose military leadership—from Kabul to Caltech—drives a hands-on approach to early-stage startups while running his VC and chairing a top angel network.
Invests in
AI & Machine LearningClimate TechFintechHealthtechPropTech
Experience
- SUM VenturesFounder & Managing Partnercurrent2016 — presentLos Angeles, California, United States
- Band of AngelsChairman, Los Angeles Groupcurrent2017 — presentMenlo Park, CA
- Wilder Systems RobotsSeed Investorcurrent2026 — present
- Purple RhombusSeed Investorcurrent2025 — present
- Vectorial AIPre-Seed Investorcurrent2026 — present
- Matthew Berry's Fantasy LifeSeed Investor & Advisorcurrent2024 — present
- BRIUS®Pre-seed - Series A investor & Board Membercurrent2019 — presentLos Angeles Metropolitan Area
- Hellbender Inc.Seed Investorcurrent2026 — present
- PlantSwitchSeed and Series A Investorcurrent2023 — present
- RootSeed Investorcurrent2026 — present
- Purlin Co.Pre-Seed and Seed Investor & Board Membercurrent2020 — present
- PayAmigoPre-Seed and Seed Investorcurrent2023 — present
- DressXPre-Seed - Series A Investor, Advisor & Board Observercurrent2020 — presentLos Angeles Metropolitan Area
- AutomotusPre-Seed and Seed Investor & Advisorcurrent2020 — present
- AssistMeSeed Investorcurrent2026 — present
- ClearClubPre-Seed and Seed Investor & Board Membercurrent2021 — present
- IrriGreenPre-Seed- Series A Investor & Advisorcurrent2019 — present
- UNestPre-Seed Investor & Board Chairmancurrent2019 — presentLos Angeles Metropolitan Area
- Ovation VenturesPre-seed -Seed Investor & Advisorcurrent2021 — present
- geCKo MaterialsSeed Investorcurrent2025 — present
Skills & more
Government80Defense34Entrepreneurship35Startup Marketing13Venture Capital14Start-ups24Financial Modeling9Military22Management Consulting9Marketing Strategy13Early-stage Startups6Fundraising6
+10 more
Business StrategyLean StartupAgile MethodologiesFinancial ProjectionAir ForceGrowth HackingGovernment ContractingNew Business DevelopmentManagementLeadership- Venture Capital — CFA Institute
- Defense Acquisition University Level I Contracting — Defense Acquisition University
- Certified ScrumMaster — Scrum Alliance
- Certified Scrum Product Owner — Scrum Alliance
- Defense Acquisition University Level II Contracting — Defense Acquisition University
From Garrett's professional profile.
Colleagues at Sum Ventures
Brent Celek
Partner at Sum Ventures
Brian Stephenson
Partner at Sum Ventures
Chris Sporck
Venture Partner at Sum Ventures
Derek Hu
Partner at Sum Ventures
Elizabeth Spears
General Partner at Sum Ventures
Harry Hopper
Senior Partner at Sum Ventures
Margot Shapiro
Venture Partner at Sum Ventures
Nachi Gupta
Venture Partner at Sum Ventures
Frequently asked questions
- Who is Garrett Gilbertson?
- Garrett Gilbertson is a decorated Afghan War veteran whose military leadership—from Kabul to Caltech—drives a hands-on approach to early-stage startups while running his VC and chairing a top angel network.
- Where does Garrett Gilbertson work?
- Garrett Gilbertson is Managing Partner at Sum Ventures.
- What does Garrett Gilbertson invest in?
- Garrett Gilbertson invests in AI & Machine Learning, Climate Tech, Fintech, Healthtech, PropTech.
- Where did Garrett Gilbertson go to school?
- Garrett Gilbertson studied at Harvard Business School Executive Education (Venture Capital & Private Equity); United States Air Force Academy (Bachelor of Science (BS), Business Management); Pepperdine University (MS Entrepreneurship, Business).
Same school
Also attended Harvard Business School Executive Education225
Konstantin DzhengozovCo-founder & CFO of PayhawkChris FeeneySenior Fellow, Bank Policy Institute at MissionOGRyan LaurinManaging Director at Marlin Equity PartnersPaul SlosarInvestor at FortySix Venture CapitalRaghu MadabushiInvestment Director at Samsung Catalyst FundTom KalinskeInvestor at Alsop Louie Partners
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+ 219 more
Also attended United States Air Force Academy73
John MartinsonFounder at Martinson VenturesPatrick HenshawManaging Director at Render CapitalLeSean BrownAssociate at Context VenturesSteve SargeantSenior Advisory Board at IronGate Capital AdvisorsForrest UnderwoodVenture Partner at IronGate Capital AdvisorsIan BalserAnalyst at Tech Square Ventures
+ 67 more
Also attended Pepperdine University57
Kenneth KellerAssociate at Marlin Equity PartnersDr. John L Evans JrVenture Partner at Parkway Venture CapitalKelly KoVice President of Technology Ventures and Innovation at Flare Capital PartnersJerel DavisManaging Director at Versant VenturesJasmine EssalatSenior Recruiter at Red Cell IncubationNia PatelVice President at Electric Feel Ventures Llc
+ 51 more
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