Nathan Fox, Founder & Managing Partner at F-3 Capital is an active investor based in Portsmouth, New Hampshire. This profile covers what Nathan Fox backs, at which stage, and how founders can reach out in 2026.
Nathan Fox is the Founder & Managing Partner at F-3 Capital, providing fiduciary-focused wealth planning.
Nathan Fox invests in Fintech and WealthTech, typically at Early Stage Venture.
- Location
- Portsmouth, New Hampshire
- Typical check
- $500K
What does Nathan Fox invest in?
- Investor type
- VC
- Stages
- Early Stage Venture
- Invests in
- FintechWealthTech
Where is Nathan Fox based?
Nathan Fox is based in Portsmouth, New Hampshire.
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- Startup investors in the United States
How to reach Nathan Fox
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About this profile
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Cite this page
Round Funded. "Nathan Fox." Round Funded investor database, updated September 22, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/nathan-fox
Frequently Asked Questions
Who is Nathan Fox?
Nathan Fox, Founder & Managing Partner at F-3 Capital is an active investor based in Portsmouth, New Hampshire. Nathan Fox invests in Fintech and WealthTech, typically at Early Stage Venture.
What does Nathan Fox invest in?
Nathan Fox invests in Fintech and WealthTech, typically at Early Stage Venture. Match your sector and stage, then reach out with a personalized pitch.
What stage does Nathan Fox invest at?
Nathan Fox typically invests at Early Stage Venture. Lead with traction that fits the stage when you reach out.
What is Nathan Fox's typical check size?
Nathan Fox typically writes checks around $500K. Use it as a signal for whether your raise fits their stage.
Where is Nathan Fox based?
Nathan Fox is based in Portsmouth, New Hampshire.
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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