Jack Seaver
Managing Partner and co-founder of Tanis Venture Management, a New York City early-stage VC firm investing in biotech and defense-tech companies; led the firm's investment in Dive Technologies (acquired by Anduril, 2022) and sat on its board.
Jack Seaver co-founded Tanis Venture Management, LLC alongside Alex Seaver and Brad Kent, and serves as the firm's Managing Partner, leading day-to-day operations and working with portfolio companies on their strategic, operating, and financial needs. He holds a B.A. in History and Classics from Amherst College and an M.B.A. from Stanford University's Graduate School of Business. Earlier in his career he worked on Mitt Romney's presidential campaign and at DCI Group managing issue-advocacy campaigns for Fortune 25 companies in Washington, D.C., then held operating roles at several Bay Area startups before moving into venture investing. At Tanis, he led the firm's 2020 investment in Dive Technologies and served as the company's outside board director through its 2022 acquisition by Anduril Industries.
Overview
- Role
- Managing Partner & Co-Founder, Tanis Venture Management
- Based in
- New York, NY
- Prior experience
- Romney presidential campaign staffer; DCI Group; Bay Area startups (operating roles)
Companies0
No linked records yet.
Frequently asked
- Who is Jack Seaver?
- Jack Seaver co-founded Tanis Venture Management, LLC alongside Alex Seaver and Brad Kent, and serves as the firm's Managing Partner, leading day-to-day operations and working with portfolio companies on their strategic, operating, and financial needs. He holds a B.A. in History and Classics from Amherst College and an M.B.A. from Stanford University's Graduate School of Business. Earlier in his career he worked on Mitt Romney's presidential campaign and at DCI Group managing issue-advocacy campaigns for Fortune 25 companies in Washington, D.C., then held operating roles at several Bay Area startups before moving into venture investing. At Tanis, he led the firm's 2020 investment in Dive Technologies and served as the company's outside board director through its 2022 acquisition by Anduril Industries.
- What is Jack Seaver's role?
- Jack Seaver is Managing Partner & Co-Founder, Tanis Venture Management, based in New York, NY.
- Where did Jack Seaver work before?
- Jack Seaver's prior roles include Romney presidential campaign staffer; DCI Group; Bay Area startups (operating roles).
Tags
Sources & citations5
Each claim links to its underlying source. Confidence reflects how directly the source supports the claim.
- 1
Jack Seaver is Managing Partner and Co-Founder of Tanis Venture Management; holds a BA in History and Classics from Amherst College and an MBA from Stanford Graduate School of Business; previously worked at DCI Group and as a U.S. presidential campaign staffer.
CND Life Sciences: About / LeadershipVerified2026-08-11 - 2
Tanis Venture Management, Mill Town Capital, and VTC Ventures announce the acquisition of Dive Technologies by Anduril Industries; identifies Jack Seaver as Dive board director and Managing Director of Tanis.
Caribbean News Global (Businesswire): Tanis Venture Management, Mill Town Capital, and VTC Ventures Announce Acquisition of Dive Technologies by Anduril IndustriesVerified2022-02-04 - 3
Tanis Venture Management led Dive Technologies' $4M financing round; Jack Seaver, Managing Director at Tanis, quoted on the investment.
Pulse2: Subsea Robotics Designer Dive Technologies Raises $4 MillionReported2020-12-21 - 4
Tanis Venture Management is a New York City-based venture capital firm co-founded by Jack Seaver, Alex Seaver, and Brad Kent, focused on early-stage biotech and defense-tech companies with access to non-dilutive R&D funding.
CB Insights: Tanis Venture Management — investor profileReported2026-08-11 - 5
First-person account by Jack Seaver referencing his time at Stanford's Graduate School of Business and prior work on the Romney presidential campaign and in Washington DC lobbying.
Medium (non-disclosure): Donald Trump's Challenge to the GSBVerified2016-11-08