Jack Dreifuss, Founder & Managing Partner at Impatient Ventures is an active investor based in United States. This profile covers what Jack Dreifuss backs, at which stage, and how founders can reach out in 2026.
Jack Dreifuss invests in builders with an obsessive and deep "why" behind their mission, focusing on early-stage investments.
Jack Dreifuss invests in SaaS & Enterprise, Fintech and Artificial Intelligence, typically at Pre Seed, Seed and Series A.
- Location
- United States
- Typical check
- $250K
What does Jack Dreifuss invest in?
- Investor type
- VC
Where is Jack Dreifuss based?
Jack Dreifuss is based in United States.
- Browse more startup investors near Jack Dreifuss:
- Startup investors in the United States
How to reach Jack Dreifuss
Angels and operators like Jack Dreifuss reply to specific, personalized notes that show real traction, not mass blasts. Build a verified list, write a note that fits their thesis, and track replies, all on Round Funded.
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About this profile
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Cite this page
Round Funded. "Jack Dreifuss." Round Funded investor database, updated September 22, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/jack-dreifuss
Frequently Asked Questions
Who is Jack Dreifuss?
Jack Dreifuss, Founder & Managing Partner at Impatient Ventures is an active investor based in United States. Jack Dreifuss invests in SaaS & Enterprise, Fintech and Artificial Intelligence, typically at Pre Seed, Seed and Series A.
What does Jack Dreifuss invest in?
Jack Dreifuss invests in SaaS & Enterprise, Fintech and Artificial Intelligence, typically at Pre Seed, Seed and Series A. Match your sector and stage, then reach out with a personalized pitch.
What stage does Jack Dreifuss invest at?
Jack Dreifuss typically invests at Pre Seed, Seed and Series A. Lead with traction that fits the stage when you reach out.
What is Jack Dreifuss's typical check size?
Jack Dreifuss typically writes checks around $250K. Use it as a signal for whether your raise fits their stage.
Where is Jack Dreifuss based?
Jack Dreifuss is based in United States.
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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