John Buck is a Principal at Catalyst Investors, joining in 2020. He focuses on deal origination, due diligence, and portfolio management, with prior experience in investment banking at GCA Advisors.
What John can write
Catalyst Investors writes $10M to $30M checks, larger than 97% of firms in the atlas.
Bars: how many firms report each check band. Highlighted: Catalyst Investors.Career
- GCA Advisors · investment banking associate
- Catalyst Investors · PrincipalNow
Focus
Education
Also at Catalyst Investors
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One email when John's firm raises a fund, adds a partner or shows new activity.
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Raising a pre-seed or seed round? We write $1M to $5M first checks and help founders with distribution. A partner reads every deck.
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Who is John Buck?
John Buck is a Principal at Catalyst Investors, joining in 2020. He focuses on deal origination, due diligence, and portfolio management, with prior experience in investment banking at GCA Advisors.
How much does John Buck invest?
John Buck invests through Catalyst Investors, which writes checks of $10M to $30M at series b.
How do I pitch John Buck?
A warm intro from a founder Catalyst Investors backed works best.
What did John Buck do before Catalyst Investors?
investment banking associate at GCA Advisors.
Last updated 2026-10-15. Is this you? Ask for a correction.