Matt Geiger
Managing Partner at MJG Capital Fund, LP
San Francisco, United States
Matt Geiger, Managing Partner at MJG Capital Fund, LP is an active investor based in San Francisco, United States. This profile covers what Matt Geiger backs, at which stage, and how founders can reach out in 2026.
Matt Geiger manages MJG Capital Fund, LP, a limited partnership specializing in long-only, concentrated portfolios of natural resource equities.
Matt Geiger invests in Climate & Energy, typically at Seed and Series A.
- Location
- San Francisco, United States
- Typical check
- $625K
What does Matt Geiger invest in?
- Investor type
- VC
- Invests in
- Climate & Energy
Where is Matt Geiger based?
Matt Geiger is based in San Francisco, United States.
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How to reach Matt Geiger
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About this profile
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Cite this page
Round Funded. "Matt Geiger." Round Funded investor database, updated September 22, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/matt-geiger
Frequently Asked Questions
Who is Matt Geiger?
Matt Geiger, Managing Partner at MJG Capital Fund, LP is an active investor based in San Francisco, United States. Matt Geiger invests in Climate & Energy, typically at Seed and Series A.
What does Matt Geiger invest in?
Matt Geiger invests in Climate & Energy, typically at Seed and Series A. Match your sector and stage, then reach out with a personalized pitch.
What stage does Matt Geiger invest at?
Matt Geiger typically invests at Seed and Series A. Lead with traction that fits the stage when you reach out.
What is Matt Geiger's typical check size?
Matt Geiger typically writes checks around $625K. Use it as a signal for whether your raise fits their stage.
Where is Matt Geiger based?
Matt Geiger is based in San Francisco, United States.
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.
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