YC Fall 2025 Engineering, Product and Design Startups

Y Combinator's Fall 2025 batch included 23 Engineering, Product and Design startups. Of these, 22 remain active, 0 have been acquired, and 1 have shut down.

• Arcten (2 people) — Lab working on long-horizon autonomous research and coding agents
• Perseus (4 people) — Applied Lab focused on Search in Latent Spaces.
• Lemma (2 people) — Production Monitoring for AI agents
• Rovr (3 people) — AI FDE Engine that runs your engineering workflows
• Compyle (2 people) — The coding agent that actually collaborates with you
• Semiotic (3 people) — Studio-Grade Design at Scale
• MOVEdot (10 people) — AI Agents for Hardware Engineering
• Minro (2 people) — Identify churn risk and stay close to users at scale
• AtlasGrid (6 people) — Accelerate Product Iteration
• hillclimb (4 people) — Training Data for Recursive Self-Improvement
• Sol (2 people) — Code and browse in the same place
• Sourcebot (3 people) — Helping humans and AI agents understand massive codebases
• Fastshot (3 people) — Lovable for mobile apps
• Rivet — Visual editor to design in production code
• Coasts (2 people) — Localhost service isolation and orchestration for git worktrees
• Aspect (3 people) — Intelligent media storage for creative teams.
• Locus (2 people) — Payment infrastructure for AI agents
• Caddy (4 people) — Your partner for everyday work, lives in iMessage
• OpenBuilder (3 people) — The vibe coding platform where builders actually finish.
• Specific (2 people) — AWS for coding agents
• The Context Company (2 people) — Monitor AI agents and understand user behavior
• dari.dev (2 people) — The Production Layer for AI Agents
• Antigen (3 people) — Continuous offensive security for the enterprise.