Mark Kamstra

Active Investor

Managing Principal at Triple Eagle Ventures

San Antonio, Texas

Mark Kamstra, Managing Principal at Triple Eagle Ventures is an active investor based in San Antonio, Texas. This profile covers what Mark Kamstra backs, at which stage, and how founders can reach out in 2026.

Managing Principal at Triple Eagle Ventures; background in federal procurement consulting, with federal program management and strategy certifications.

Mark Kamstra invests in GovTech & Defense, typically at Seed and Series A.

Investor type
VC
Stages
SeedSeries A
Invests in
GovTech & Defense
Location
San Antonio, Texas
Typical check
$625K

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Round Funded. "Mark Kamstra." Round Funded investor database, updated November 3, 2026.

Stable URL, it will not change: https://www.roundfunded.com/en/investor/mark-kamstra

Frequently Asked Questions

Who is Mark Kamstra?

Mark Kamstra, Managing Principal at Triple Eagle Ventures is an active investor based in San Antonio, Texas. Mark Kamstra invests in GovTech & Defense, typically at Seed and Series A.

What does Mark Kamstra invest in?

Mark Kamstra invests in GovTech & Defense, typically at Seed and Series A. Match your sector and stage, then reach out with a personalized pitch.

What stage does Mark Kamstra invest at?

Mark Kamstra typically invests at Seed and Series A. Lead with traction that fits the stage when you reach out.

What is Mark Kamstra's typical check size?

Mark Kamstra typically writes checks around $625K. 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.