YC Summer 2025 B2B Startups

Y Combinator's Summer 2025 batch included 117 B2B startups. Of these, 115 remain active, 1 have been acquired, and 1 have shut down.

• Halluminate (5 people) — Data and RL environments to automate knowledge work
• Alter (2 people) — Secure access control and authorization platform for agent workflows
• Riverbank (1 people) — AI-native Red Teaming and Offensive Security
• Char (4 people) — The AI notepad that knows and works for you
• Omnara (4 people) — Mobile & Web Interface for Claude Code & Codex
• Uplift AI (3 people) — Foundational Voice Models for regional languages
• Paloma (3 people) — Digital transformation for real economy businesses
• AgentMail (10 people) — Email Inboxes for AI Agents
• F2 (15 people) — The AI platform for private markets investors
• Bizzy AI — Bizzy works 24/7 so you never miss a lead.
• Autumn (5 people) — Billing infrastructure for AI
• Monte (3 people) — Continual Learning for Agents
• Ambral (3 people) — AI for account management and customer success
• Serafis (4 people) — Narrative intelligence for investors
• Cactus (8 people) — Low-latency AI engine for mobile devices & wearables
• ProcIndex (4 people) — AI Agents for Accounting Operations
• Minimal AI (3 people) — AI Agents for E-commerce Customer Support
• Nixo (4 people) — The first ops platform for forward deployed engineers
• Magnitude (2 people) — The best coding agent for open models
• Preseen (1 people) — The AI forecasting company for global macro events.
• GETASAP (30 people) — Distribution at the Speed of Compute
• Dedalus Labs (10 people) — Compute substrate for AI agents
• The Prompting Company (7 people) — We help products get discovered & used by AI agents.
• MangoDesk (2 people) — Long-horizon RL environments
• truthsystems (6 people) — Automatically blocking risky behavior with real-time governance agents
• Lanesurf (8 people) — Book any load in 10 minutes
• Golpo (4 people) — Create Whiteboard Explainer Videos with AI from a Prompt or Document
• Liva AI (4 people) — Audio & Video Data
• Pond (2 people) — Superhuman for text messages
• ContextFort (2 people) — Visibility and Controls for Browser Agents
• LLM Stats (2 people) — Independent AI evaluations lab
• bitrig (3 people) — Vibe code, test, and deploy Swift apps. All from your iPhone.
• Lotas (2 people) — AI for Data Science and 3D
• Monarcha (2 people) — Turn maps into data
• Cyberdesk (2 people) — Self learning computer use agent for developers
• Janet AI (4 people) — The Autonomous Product Management System
• Imprezia (4 people) — The World's First AI Ad Network.
• Proliferate — Manage a team of agents from your desktop
• Tesora (3 people) — Frontier AI for Actuaries
• Pangolin (3 people) — Identity-aware VPN and proxy for remote access to anything, anywhere.
• Panoptive (2 people) — The continuous oversight engine for clinical trials
• Fulcrum (2 people) — The agentic debugger for AI systems
• Doe (4 people) — The boring stuff, handled. Everything else, supercharged.
• Theora (3 people) — OpenEvidence for Pharmaceutical Evidence
• Trace (3 people) — Context-aware orchestration between humans and AI.
• Channel3 (5 people) — Database of every product on the internet
• Comena (2 people) — AI agents for distributors and manufacturers to automate order entry.
• Mimos (1 people) — The growth OS for plaintiff-side law firms
• VibeFlow (3 people) — Lovable, n8n and a database all in one platform
• Manufact (5 people) — Cloud infrastructure for MCP servers and Claude / ChatGPT apps.
• Relling — deploying the first billion robots for manufacturing
• Motives — Consumer focus groups run by AI
• Finto (7 people) — AI accounting for enterprise finance teams
• Autosana (4 people) — AI agents for E2E testing across mobile & web
• Knowlify (6 people) — The AI Explainer Video Maker
• Alara — Procurement Platform for Dental Offices
• Floot (4 people) — The easiest way for non-coders to build apps with AI.
• Maximal (3 people) — Truckload Planning at Machine Precision
• Humoniq (6 people) — AI-Native BPO for travel & transport
• Quotain (2 people) — AI sales simulations using your real deals