Garrett Gilbertson
Founder & Managing Partner at SUM Ventures
Hermosa Beach, California
Garrett Gilbertson, Founder & Managing Partner at SUM Ventures is an active investor based in Hermosa Beach, California. This profile covers what Garrett Gilbertson backs, at which stage, and how founders can reach out in 2026.
- Investor type
- VCPEOperator
- Stages
- Early Stage VenturePre SeedSeed
- Invests in
- FintechArtificial IntelligencePropTech & Real EstateRobotics & Automation
- Location
- Hermosa Beach, California
- Typical check
- $250K
- Past investments
- 7
Notable investments
DressX
United States Air ForceIrrigreenBRIUS®VerifirMechanodonticsHow to reach Garrett Gilbertson
Angels and operators like Garrett Gilbertson reply to specific, personalized notes that show real traction, not mass blasts. Build a verified list, write a note that fits their thesis, and track replies, all on Round Funded.
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About this profile
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Cite this page
Round Funded. "Garrett Gilbertson." Round Funded investor database, updated September 24, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/garrett-gilbertson
Frequently Asked Questions
What does Garrett Gilbertson invest in?
Garrett Gilbertson invests in Fintech, Artificial Intelligence, PropTech & Real Estate and Robotics & Automation, typically at Early Stage Venture, Pre Seed and Seed. Match your sector and stage, then reach out with a personalized pitch.
What stage does Garrett Gilbertson invest at?
Garrett Gilbertson typically invests at Early Stage Venture, Pre Seed and Seed. Lead with traction that fits the stage when you reach out.
What is Garrett Gilbertson's typical check size?
Garrett Gilbertson typically writes checks around $250K. Use it as a signal for whether your raise fits their stage.
How do founders reach investors like this?
Round Funded lists active investors with verified, professional contact details for signed-up founders. Filter by sector, stage and location, then send a personalized pitch from your own inbox.
What is Round Funded?
Round Funded is an investor database and outreach platform for startup founders. It lists 60,000+ active investors with verified contacts, filtered to recent investment activity, and lets founders send personalized pitches from their own Gmail, track replies, and share a free Data Room. Round+ starts at $99 per month with a 3-day trial.