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14,448 startups · 29 programs

Wardstone

Active · The Modular Interceptor Platform

WebsiteYC profile

Why it ranks

How the rank works
11signal of 100 · rising 10
  • team of 8Team size · YC's directory+4.9
  • went through YCProgram · this site+4
  • hiringHiring · Titles (titles.fru.dev), YC+2

A sum of public facts, not a judgement and not investment advice.

Competitors

OtherKeresShared: air defense, aerospace, interceptorYC F26DenverStartup →OtherVernius Systems, Inc.Shared: air defense, aerospace, interceptorYC S26San FranciscoStartup →AIPolemos IndustriesShared: ballistic missile, defenseYC F26San FranciscoStartup →OtherAres IndustriesShared: low cost, aerospace, missileYC S24Los AngelesStartup →OtherTesseractShared: rocketry, satellites, costYC S17LivermoreStartup →
Companies closest to Wardstone
Company
KeresShared: air defense, aerospace, interceptorYC F26ActiveOther
Vernius Systems, Inc.Shared: air defense, aerospace, interceptorYC S26ActiveOther
Polemos IndustriesShared: ballistic missile, defenseYC F26ActiveAI
Ares IndustriesShared: low cost, aerospace, missileYC S24ActiveOther
TesseractShared: rocketry, satellites, costYC S17ActiveOther

Adjacent

OtherElodinShared: rocketry, satellites, aerospaceYC W24San FranciscoStartup →OtherPhotonSpearShared: missile defense, ballistic missile, interceptorspeedrun SR007Los AngelesStartup →AIIMPACT DronesShared: air defense, interceptor, threatYC S26Los AngelesStartup →AIExosatShared: low cost, satellites, aerospaceYC S26San FranciscoStartup →OtherVelontraShared: air breathing, aerospace, systemYC S22DaytonStartup →
Companies next to Wardstone
Company
ElodinShared: rocketry, satellites, aerospaceYC W24ActiveOther
PhotonSpearShared: missile defense, ballistic missile, interceptorspeedrun SR007Not statedOther
IMPACT DronesShared: air defense, interceptor, threatYC S26ActiveAI
ExosatShared: low cost, satellites, aerospaceYC S26ActiveAI
VelontraShared: air breathing, aerospace, systemYC S22ActiveOther

Also from F25

All of F25
AIDarwinRobot technicians for AI infrastructureYC F25San FranciscoStartup →AILakoniaDelivering AI-powered situational awareness in tactical environments.YC F25San FranciscoStartup →AILightberryRobots with soulYC F25San FranciscoStartup →AIAbsurdThe production canvas for AI film teamsYC F25Los AngelesStartup →AIAirCaps AIVoice AI that hears what other models miss.YC F25San FranciscoStartup →AIAlderAI employees for finance, starting with accounts receivable.YC F25San FranciscoStartup →
Company
DarwinRobot technicians for AI infrastructureteam of 4hiringActiveAI
LakoniaDelivering AI-powered situational awareness in tactical environments.team of 2ActiveAI
LightberryRobots with soulteam of 3hiringActiveAI
AbsurdThe production canvas for AI film teamsteam of 10ActiveAI
AirCaps AIVoice AI that hears what other models miss.team of 5hiringActiveAI, Devtools
AlderAI employees for finance, starting with accounts receivable.team of 2hiringActiveAI

About Wardstone

Wardstone builds a low-cost, modular interceptor platform for air and missile defense. Our platform enables the warfighter to right sizes their interceptors against the threat. This allows us to defeat air-breathing and ballistic missile threats at a fraction of the cost of exquisite interceptors, adding affordable magazine depth to existing air defense systems.

YC batch
F25 · Fall 2025
Status, per YC
Active
Category
Other
Team size
8
Location
Los Angeles, CA, USA
Checked
7h ago

YC tags: Hard Tech, Satellites, Rocketry, Aerospace, Defense

Wardstone in F25: 146 companies, 88% AI

Wardstone: questions

Which YC batch was Wardstone in?

Wardstone was in Y Combinator's Fall 2025 batch (F25).

Is Wardstone still active?

Y Combinator lists Wardstone as active.

Where is Wardstone based?

Wardstone lists Los Angeles, CA, USA as its location on YC's directory.