Top accelerator startups

Startups14,448Programs29

14,448 startups · 29 programs

StarSling

Active · Agent-native GitHub Actions runners

WebsiteYC profile

Why it ranks

How the rank works
7signal of 100 · rising 5
  • went through YCProgram · this site+4
  • team of 3Team size · YC's directory+3.1

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

Competitors

AIWarpBuildShared: github action, devops, cheaperYC S21San FranciscoStartup →Developer toolsBuildJetShared: github action, cheaperYC W23BerlinStartup →AIAcquiredCruiseShared: self drivingYC W14San FranciscoStartup →Developer toolsBlacksmithShared: github actionYC W24Startup →AIAutoXShared: self drivingPlug and PlayUnited StatesStartup →
Companies closest to StarSling
Company
WarpBuildShared: github action, devops, cheaperYC S21ActiveAI, Devtools
BuildJetShared: github action, cheaperYC W23ActiveDevtools
CruiseShared: self drivingYC W14AcquiredAI
BlacksmithShared: github actionYC W24ActiveDevtools
AutoXShared: self drivingPlug and Play Not statedAI

Adjacent

OtherRivoShared: self drivingSPC 2025San FranciscoStartup →OtherAcquiredlvl5Shared: self drivingYC W17San FranciscoStartup →OtherAatonomyShared: self drivingAlchemist Class 16Startup →OtherPublicEmbark TrucksShared: self driving, openYC W16San FranciscoStartup →AICongruentShared: self driving, action, nativeYC W26San FranciscoStartup →
Companies next to StarSling
Company
RivoShared: self drivingSPC 2025Not statedOther
lvl5Shared: self drivingYC W17AcquiredOther
AatonomyShared: self drivingAlchemist Class 16Not statedOther
Embark TrucksShared: self driving, openYC W16PublicOther
CongruentShared: self driving, action, nativeYC W26ActiveAI

Also from X25 in AI

All of X25
AIAttuneFaster builds, zero effort.YC X25San FranciscoStartup →AIAcquiredBlaxelThe infrastructure for autonomous agentsYC X25San FranciscoStartup →AICapacitiveThe data gateway for agents.YC X25San FranciscoStartup →AIChironGrammarly for Math ✏️YC X25LondonStartup →AIClideyTurn scattered data into one platform for decision-makingYC X25San FranciscoStartup →AIcubicAI-powered code review platformYC X25LondonStartup →
Company
AttuneFaster builds, zero effort.team of 3hiringActiveAI, Devtools
BlaxelThe infrastructure for autonomous agentsteam of 12acquiredAcquiredAI, Devtools
CapacitiveThe data gateway for agents.team of 2ActiveAI, Devtools
ChironGrammarly for Math ✏️team of 2ActiveAI, Devtools
ClideyTurn scattered data into one platform for decision-makingteam of 5ActiveAI, Devtools
cubicAI-powered code review platformteam of 6hiringActiveAI, Devtools

Founders

  • Yonas BeshawredFounder/CEO
  • Daniel WorkuFounder/CTO

About StarSling

Drop-in Ubuntu runners plus AI agents that open optimization PRs for your workflows. StarSling Runners continuously improve your CI to make it up to 10x faster and 13x cheaper.

YC batch
X25 · Spring 2025
Status, per YC
Active
Category
AI, Developer tools
Team size
3
Location
San Francisco, CA, USA
Founded
2025
Checked
13h ago

YC tags: Developer Tools, B2B, DevOps, AI

Changes seen

One-linerNov 9, 2026

Rewrote its one-liner; it read "Self-Driving CI: fast AI-native GitHub Actions runners"

Source ↗
TagsOct 19, 2026

No longer tagged Artificial Intelligence.

Source ↗

StarSling in X25: 144 companies, 90% AI

GitHub LinkedIn

StarSling: questions

Which YC batch was StarSling in?

StarSling was in Y Combinator's Spring 2025 batch (X25).

Is StarSling still active?

Y Combinator lists StarSling as active.

Who founded StarSling?

StarSling's founders, as listed on its YC page: Yonas Beshawred (Founder/CEO), Daniel Worku (Founder/CTO).

Where is StarSling based?

StarSling lists San Francisco, CA, USA as its location on YC's directory.