Jack Senneff
Managing Director at Thompson Street Capital Partners
St. Louis, Missouri
Jack Senneff, Managing Director at Thompson Street Capital Partners is an active investor based in St. Louis, Missouri. This profile covers what Jack Senneff backs, at which stage, and how founders can reach out in 2026.
- Investor type
- AngelVCInvestor
- Stages
- Series B
- Location
- St. Louis, Missouri
- Typical check
- $3M
How to reach Jack Senneff
Angels and operators like Jack Senneff 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 Senneff?
Jack Senneff is an active investor, Managing Director at Thompson Street Capital Partners. Round Funded tracks their focus and activity alongside thousands of investors.
What stage does Jack Senneff invest at?
Jack Senneff typically invests at Series B. Lead with traction that fits the stage when you reach out.
What is Jack Senneff's typical check size?
Jack Senneff typically writes checks around $3M. Use it as a signal for whether your raise fits their stage.
How do I contact Jack Senneff?
Unlock Jack Senneff's verified email on Round Funded Accelerator and send a personalized pitch. We surface only deliverable contacts so your outreach lands.