David M Rein vs Mark Dumas

David M Rein vs Mark Dumas

David M Rein is a venture capital based in Lakewood, NJ. Mark Dumas is a venture capital based in Norfolk across 150 portfolio companies. Sector focus diverges: David M Rein concentrates on generalist deals and Mark Dumas on Artificial Intelligence, Cybersecurity and Healthcare.

• Investor type: David M Rein — Venture Capital; Mark Dumas — Venture Capital
• Headquarters: David M Rein — Lakewood, NJ; Mark Dumas — Norfolk
• Portfolio companies: David M Rein — not disclosed; Mark Dumas — 150
• Sectors: David M Rein — not disclosed; Mark Dumas — Artificial Intelligence, Cybersecurity, Healthcare

• David M. Rein — Venture Capital · Lakewood, NJ · David M Rein portfolio
• Mark Dumas — Venture Capital · Norfolk · 150 tracked deals · Mark Dumas portfolio

Similar investors

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

Investors like David M Rein · Investors like Mark Dumas · David M Rein co-investors · Full investor directory