Top accelerator startups

Startups14,448Programs29

14,448 startups · 29 programs

Surtr Defense Systems

Active · The hardware-agnostic operating system for drone defense

WebsiteYC profile

Why it ranks

How the rank works
7signal of 100 · rising 7
  • went through YCProgram · this site+4
  • team of 2Team size · YC's directory+2.5

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

Competitors

AIOpenRelayShared: hardware agnosticYC S26San FranciscoStartup →AIvoraus robotik GmbHShared: agnostic operating, hardware agnostic, systemPlug and PlayGermanyStartup →AIIsengard Industries IncShared: counter uas, drone, systemYC S26San FranciscoStartup →OtherPerseus DefenseShared: counter uas, defense, droneYC S25AustinStartup →OtherAICEShared: defense, drone, threatYC X26ParisStartup →
Companies closest to Surtr Defense Systems
Company
OpenRelayShared: hardware agnosticYC S26ActiveAI, Devtools
voraus robotik GmbHShared: agnostic operating, hardware agnostic, systemPlug and Play Not statedAI
Isengard Industries IncShared: counter uas, drone, systemYC S26ActiveAI
Perseus DefenseShared: counter uas, defense, droneYC S25ActiveOther
AICEShared: defense, drone, threatYC X26ActiveOther

Adjacent

OtherWalarisShared: counter uas, drone, systemAlchemist Class 18AtlantaStartup →AIAmbixOSShared: sensor data, operating, systemAntler 2025UKStartup →AIRelimetricsShared: hardware agnosticPlug and PlayUnited StatesStartup →OtherConduitShared: hardware agnostic, systemPlug and PlayUnited StatesStartup →AIOwayShared: open operating, hardware, systemYC S24San FranciscoStartup →
Companies next to Surtr Defense Systems
Company
WalarisShared: counter uas, drone, systemAlchemist Class 18Not statedOther
AmbixOSShared: sensor data, operating, systemAntler 2025Not statedAI
RelimetricsShared: hardware agnosticPlug and Play Not statedAI
ConduitShared: hardware agnostic, systemPlug and Play Not statedOther
OwayShared: open operating, hardware, systemYC S24ActiveAI, Devtools

Also from X26 in AI

All of X26
AIAbInitio BioThe Intelligence layer for Drug ManufacturingYC X26BostonStartup →AIAdvanced Metal ResearchMachine intelligence for American WeldingYC X26Los AngelesStartup →AIAgentPhonePhone Numbers for AI AgentsYC X26San FranciscoStartup →AIAGI Deploy CoDiffusing AI into critical industriesYC X26San FranciscoStartup →AIAkkariAutonomous Customer OperationsYC X26San FranciscoStartup →AIAlchemizeBuilding AI Native Customs BrokeragesYC X26San FranciscoStartup →
Company
AbInitio BioThe Intelligence layer for Drug Manufacturingteam of 2ActiveAI
Advanced Metal ResearchMachine intelligence for American Weldingteam of 3ActiveAI
AgentPhonePhone Numbers for AI AgentshiringActiveAI
AGI Deploy CoDiffusing AI into critical industriesteam of 2ActiveAI
AkkariAutonomous Customer Operationsteam of 5ActiveAI
AlchemizeBuilding AI Native Customs Brokeragesteam of 2ActiveAI

Founders

  • Anshul AhluwaliaFounder/CEO
  • Cameron FioreFounder/CTO

About Surtr Defense Systems

Surtr builds ParallaxOS, the open operating system for counter-UAS. It takes sensor data from any radar, RF detector, camera, or acoustic array and fuses it into a single unified picture with AI-driven threat classification and engagement recommendations. One interface, any hardware, human in the loop.

YC batch
X26 · Spring 2026
Status, per YC
Active
Category
AI
Team size
2
Location
San Francisco, CA, USA
Founded
2026
Checked
7h ago

Surtr Defense Systems in X26: 194 companies, 84% AI

LinkedIn

Surtr Defense Systems: questions

Which YC batch was Surtr Defense Systems in?

Surtr Defense Systems was in Y Combinator's Spring 2026 batch (X26).

Is Surtr Defense Systems still active?

Y Combinator lists Surtr Defense Systems as active.

Who founded Surtr Defense Systems?

Surtr Defense Systems's founders, as listed on its YC page: Anshul Ahluwalia (Founder/CEO), Cameron Fiore (Founder/CTO).

Where is Surtr Defense Systems based?

Surtr Defense Systems lists San Francisco, CA, USA as its location on YC's directory.