TAG
#YC-Backed
26 AI startups tagged "YC-Backed"
Replit
Build software collaboratively from any device.
Greptile
AI code review agent with complete codebase context
Stack AI
No-code platform for enterprise AI agents and forms
Motion
AI calendar + project manager that auto-prioritizes your day.
Coval
Simulation and evaluation platform for voice and chat AI agents, modeled on self-driving car testing.
Klaimee
Liability insurance for AI agents — you deploy them, we cover you.
Arzana
AI automation for the manufacturing office — order entry, quoting, and customer updates.
Sherpa
Autonomous conversion rate optimization that watches sessions, ships A/B tests, and lifts signups.
General Instinct
Deploy frontier AI into any edge device, fully offline, at maximum performance.
Ontora
AI agents that interview every employee to map how work actually gets done.
Superlog
AI-native observability that installs itself and ships pull requests to fix the bugs it finds.
ReasonBlocks
Agent runtime that catches mid-run failures and builds a private reasoning library.
Astraea
Agents that compress clinical trial biometrics from months to days.
Manicule
AI-native documentation studio for developer tool companies.
AgentPhone
Phone numbers for AI agents — voice and messaging through one unified API.
Degla
Fully autonomous intelligence layer in the sky for multi-drone missions.
Deep Interactions
A collaborative AI app builder that lets entire teams ship production AI products together in an afternoon.
Runtime
Sandboxed coding agents for everyone on your team — with guardrails and observability.
Limrun
Cloud XCode, iOS and Android simulators that let any coding agent build mobile apps without a Mac.
matforge
AI scientists that discover next-generation semiconductor materials in months instead of a decade.
Replicas
Background coding agents that delegate engineering work to sandboxed AI in Slack, Linear, and GitHub.
Callab AI
AI voice agents that plug into legacy on-premises PBX telephony systems without infrastructure migration.
Elyra
AI voice and email agents that handle restaurant reservations and optimize table allocation in real time.
Boundary (BAML)
BAML, a programming language and toolchain for building type-safe, structured-output LLM applications.
Helicone
Helicone is an AI gateway and LLM observability platform that helps companies route, debug, and analyze their AI applications.
Atrisa
An agentic workflow for modern analog design, acting as an assistant engineer for circuit creation, debugging, and simulation.