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Alex Poulin

Partner at Lavrock Ventures

DirectorRoles at 2 startups
Updated Nov 4, 2026·Latest SEC filing Nov 2, 2026·Suggest an edit

About Alex Poulin

Alex Poulin is a partner at Lavrock Ventures, a venture firm that invests in frontier technologies for national security. Lavrock led the seed round of Aventra Defense Systems, which makes Piranha, a balloon-dropped glider and guidance kit for long-range precision strikes.

Experience

This experience comes from official bios and from SEC filings. For roles taken from filings, the years are when the filings name Alex Poulin in the role, so the role may have started earlier or lasted longer.

Lavrock Ventures Current
Partner
Aventra Defense Systems, Inc.
Director
2026 · Herndon, VA
Aventra makes low-cost guidance kits and gliders that turn unguided munitions into precision weapons for long-range strikes.
Castelion Corp
Director
2023 – 2026 · Torrance, CA
Makes hypersonic weapons for the U.S. military and allied forces.

Key Colleagues at Startups

The people Alex Poulin works with at each company, as listed on that company's latest Form D.

Aventra Defense Systems, Inc. · Form D, Nov 2, 2026
MW
Michael Weigand
Chief Executive Officer and director
BR
Brian Retherford
Executive officer, director and promoter
JM
Jessup Meng
Executive officer and promoter
Castelion Corp · Form D, Aug 28, 2026
Andrew Kreitz
Andrew Kreitz
Co-Founder & CFO, director
Sean Pitt
Sean Pitt
Co-Founder & COO, director
Charles Hargis
Charles Hargis
Co-Founder & CEO, director

Alex Poulin in the News

Sources

  1. SECAventra Defense Systems, Inc. Form D, filed Nov 2, 2026
  2. SECCastelion Corp Form D, filed Aug 28, 2026