Brian Feinstein vs Mark Dumas

Brian Feinstein vs Mark Dumas

Brian Feinstein is a venture capital based in Larchmont. Mark Dumas is a venture capital based in Norfolk across 150 portfolio companies. Sector focus diverges: Brian Feinstein concentrates on generalist deals and Mark Dumas on Artificial Intelligence, Cybersecurity and Healthcare.

• Investor type: Brian Feinstein — Venture Capital; Mark Dumas — Venture Capital
• Headquarters: Brian Feinstein — Larchmont; Mark Dumas — Norfolk
• Portfolio companies: Brian Feinstein — not disclosed; Mark Dumas — 150
• Sectors: Brian Feinstein — not disclosed; Mark Dumas — Artificial Intelligence, Cybersecurity, Healthcare

• Brian Feinstein — Venture Capital · LARCHMONT · Brian Feinstein portfolio
• Mark Dumas — Venture Capital · Norfolk · 150 tracked deals · Mark Dumas portfolio

Similar investors

• Annual Series GP ULC Overbay 2026 Fund
• Lee Moser
• Private Credit Fund I GP, LP Dynamic
• Nimble Partners, LLC
• Edward Tsai
• Michael Collins
• Roy Glasberg
• Wellington Funds (US) LLC
• Nimble Partners GP, LLC
• Ventures II GP, LLC

Investors like Brian Feinstein · Investors like Mark Dumas · Brian Feinstein co-investors · Full investor directory