First In Ventures Management, Inc.Firm match from fund name (lower confidence)
First In Patriot Castelion LLC
Open, writing first checksEmerging manager
Open: first sale Aug 2025, per Form D (fund age approximates vintage)
- Vintage
- 2025
- Fund size
- $17.62M (Form D)
- Stages
- Not stated
- Sectors
- Manufacturing, Data analytics, Cybersecurity, Space, Aerospace and defense, Robotics
- Regions
- Not stated
01 · Thesis
No thesis found on the firm's website yet.
02 · Initial check
$176K to $294K (estimated from fund size)
Estimated from Form D
03 · Who to approach
Named on this fund's Form D
- Arthur Karell, General Partner
- Forbes McPherson, ISSUER'S MANAGING MEMBER.
04 · Deals
No deals attributed to this fund yet.
05 · Evidence
Firm-wideFirst In invests in security technology across advanced manufacturing, AI and data, communications and networking, cybersecurity, space, strategic systems, and unmanned systems.
we are SECURITY TECHNOLOGY investors
https://wearefirstin.com/
06 · Sources
Last verified: Oct 28, 2026