YCF25· OtherIcarus
Stratospheric birds for defense
Founders
Not read from YC yet; the weekly run fills these in.
Same space
Competitors
Closest in what they build, same category.
HEO RoboticsS21We visually monitor space objects for governments and defenseShared: aerospace, defenseActive
OrnadyneX26We're building robot birds for surveillance.Shared: aerospace, defenseActive
Null LabsF25End-to-end Simulation for Defense AutonomyShared: aerospaceActive
RadicalW23Building persistent, high-performance infrastructure in the skyShared: aerospaceActive
Adjacent
Overlapping tags, a different niche.
VendraS24Custom Parts, Manufactured in America 🇺🇸Shared: hardware, aerospace, defenseActive
Kalam LabsS21Autonomous Stratospheric UAVsShared: hardware, aerospaceActive
Vernius Systems, Inc.S26Mass-deployable radars for air defenseShared: aerospace, defenseActive
WardstoneF25The Modular Interceptor PlatformShared: aerospace, defenseActive
SorcererS24Building a nervous system for the atmosphereShared: hardware, aerospaceActive
Also from F25
Batchmates in Fall 2025.
LakoniaF25Delivering AI-powered situational awareness in tactical environments.Active
LightberryF25Robots with soulActive
MOVEdotF25AI Agents for Hardware EngineeringActive
NorraF25Automating equipment operations for nursing facilitiesActive
AbsurdF25The Creative OS for AI videoActive
AirCapsF25The AI copilot for in-person conversations.Active
About Icarus
Icarus is building the modern-day U-2 spy plane. Our autonomous solar aircraft fly at 60,000 feet for weeks at a time, eventually months and years, above weather and below satellites. They deliver persistent intelligence and connectivity for the military at a fraction of the cost of existing systems. The stratosphere is the forgotten frontier.
Los Angeles, CA, USA
Icarus: questions
Which YC batch was Icarus in?
Icarus was in Y Combinator's Fall 2025 batch (F25).
Is Icarus still active?
Y Combinator lists Icarus as active.
Where is Icarus based?
Icarus lists Los Angeles, CA, USA as its location on YC's directory.
Not affiliated with Y Combinator. From YC's public directory. Logos via logo.dev; trademarks belong to their owners.