Patient capital and operating experience for founders building with AI.

Jameson Capital Management is the family office of Michael Dongieux. We invest in and advise a small number of technology companies whose CEOs we know well.

Operator-led

We have built and run companies. We bring that experience directly to the founders we back.

Concentrated

We hold a small number of positions. Every relationship receives genuine attention.

Long-term

We invest our own capital with no fund lifecycle pressure. We can wait.

Selected relationshipsDRAFT — PENDING COMPANY PERMISSION
AmenifyDRAFT
Squire SolutionsDRAFT

Listed with permission. Not a complete list.

© 2026 Jameson Capital Management

Jameson Capital Management is a family office; it does not solicit outside investment, and nothing here is an offer to sell securities.