Marlinspike is a Washington, D.C.-based venture fund focused on defense technology that helps its portfolio companies navigate the Pentagon and the broader D.C. policy world, based on the belief that industries are shifting from human-run systems to more autonomous ones over the next one to two decades. Unlike many funds, it invests heavily once it's confident in an idea, aims to stay small so its team can move quickly, hires people coming out of military transition programs, and backs companies following in the footsteps of Anduril and Palantir.