Jack Mosbacher
Partner at Watchfire Ventures
San Francisco, California
Jack Mosbacher, Partner at Watchfire Ventures is an active investor based in San Francisco, California. This profile covers what Jack Mosbacher backs, at which stage, and how founders can reach out in 2026.
- Investor type
- VCMicro VCPEInvestor
- Stages
- Early Stage VenturePre SeedSeed
- Location
- San Francisco, California
- Typical check
- $250K
How to reach Jack Mosbacher
Angels and operators like Jack Mosbacher 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 Accelerator.
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Frequently Asked Questions
Who is Jack Mosbacher?
Jack Mosbacher is an active investor, Partner at Watchfire Ventures. Round Funded tracks their focus and activity alongside thousands of investors.
What stage does Jack Mosbacher invest at?
Jack Mosbacher typically invests at Early Stage Venture, Pre Seed and Seed. Lead with traction that fits the stage when you reach out.
What is Jack Mosbacher's typical check size?
Jack Mosbacher typically writes checks around $250K. Use it as a signal for whether your raise fits their stage.
How do I contact Jack Mosbacher?
Unlock Jack Mosbacher's verified email on Round Funded Accelerator and send a personalized pitch. We surface only deliverable contacts so your outreach lands.