4 people on the investing team, 4 of them partners who can make the call. Partners are listed first.
Work here and something is wrong? Ask for a correction.

Raising a pre-seed or seed round? We write $1M to $5M first checks and help founders with distribution. A partner reads every deck.
Send your deckOne email when this firm shows new activity. Nothing else.
J4.Ventures reports entry at pre-seed, seed, series a.
J4.Ventures has not reported a check size.
J4.Ventures has not reported a lead preference.
Bruce Jaffe (General Partner), Erik Johnson (General Partner), Jamie Rapperport (General Partner), John Mitchell (General Partner).
No recent activity since September 2026.
Work at J4.Ventures? Claim or correct this profile.