James Prussing
Managing Partner at Boundary Stone Partners
Los Angeles, California
James Prussing, Managing Partner at Boundary Stone Partners is an active investor based in Los Angeles, California. This profile covers what James Prussing backs, at which stage, and how founders can reach out in 2026.
James Prussing has 20 years of experience at the intersection of energy innovation, finance, and national security, advising founders on navigating federal bureaucracy.
James Prussing invests in Climate & Energy and GovTech & Defense, typically at Early Stage Venture.
- Investor type
- VC
- Stages
- Early Stage Venture
- Invests in
- Climate & EnergyGovTech & Defense
- Location
- Los Angeles, California
- Typical check
- $500K
How to reach James Prussing
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About this profile
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Cite this page
Round Funded. "James Prussing." Round Funded investor database, updated November 3, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/james-prussing
Frequently Asked Questions
Who is James Prussing?
James Prussing, Managing Partner at Boundary Stone Partners is an active investor based in Los Angeles, California. James Prussing invests in Climate & Energy and GovTech & Defense, typically at Early Stage Venture.
What does James Prussing invest in?
James Prussing invests in Climate & Energy and GovTech & Defense, typically at Early Stage Venture. Match your sector and stage, then reach out with a personalized pitch.
What stage does James Prussing invest at?
James Prussing typically invests at Early Stage Venture. Lead with traction that fits the stage when you reach out.
What is James Prussing's typical check size?
James Prussing typically writes checks around $500K. 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.