Bruce Jaffe, General Partner at J4.Ventures is an active investor based in New York, New York. This profile covers what Bruce Jaffe backs, at which stage, and how founders can reach out in 2026.
Bruce Jaffe is a General Partner at J4.Ventures and has managed Mergers & Acquisitions at Microsoft.
Bruce Jaffe invests in SaaS & Enterprise and Hardware & Deep Tech, typically at Seed and Series A.
- Location
- New York, New York
- Typical check
- $625K
What does Bruce Jaffe invest in?
- Investor type
- VC
- Invests in
- SaaS & EnterpriseHardware & Deep Tech
Where is Bruce Jaffe based?
Bruce Jaffe is based in New York, New York.
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- Startup investors in New York CityStartup investors in the United States
How to reach Bruce Jaffe
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About this profile
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Round Funded. "Bruce Jaffe." Round Funded investor database, updated September 22, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/bruce-jaffe
Frequently Asked Questions
Who is Bruce Jaffe?
Bruce Jaffe, General Partner at J4.Ventures is an active investor based in New York, New York. Bruce Jaffe invests in SaaS & Enterprise and Hardware & Deep Tech, typically at Seed and Series A.
What does Bruce Jaffe invest in?
Bruce Jaffe invests in SaaS & Enterprise and Hardware & Deep Tech, typically at Seed and Series A. Match your sector and stage, then reach out with a personalized pitch.
What stage does Bruce Jaffe invest at?
Bruce Jaffe typically invests at Seed and Series A. Lead with traction that fits the stage when you reach out.
What is Bruce Jaffe's typical check size?
Bruce Jaffe typically writes checks around $625K. Use it as a signal for whether your raise fits their stage.
Where is Bruce Jaffe based?
Bruce Jaffe is based in New York, New York.
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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