168 startups in this batch
YC Summer 2025 was the definitive cohort of the Agentic Pivot, occurring just as foundational models reached the reliability required for autonomous action. The macro environment was defined by a shift from "AI as a feature" to AI as a workforce, with YC funding a record number of startups focused on replacing high-cost human workflows in legacy sectors. This was the era where the industry moved past chat interfaces toward headless, autonomous systems.
This batch proved that the most resilient business models were those that targeted high-stakes vertical bottlenecks, such as insurance underwriting and dental procurement. They validated that enterprises were willing to pay a premium for agentic infrastructureβspecifically tools that allowed AI to communicate via legacy protocols like email or voice. The success of these companies showed that the market didn't want better tools for humans; it wanted software that performed the work itself.
Many startups in this cohort eventually struggled because they built thin orchestration layers that were easily replaced when foundational model providers released native agentic capabilities. The failure point for many was over-indexing on infrastructure before proving the core utility of the agent. A builder today should learn that defensibility comes from deep integration into the messy reality of business operations, not just the elegance of the AI simulation.
The 2026 opportunity lies in sovereign, local-first agentic networks for highly regulated niches. While S25 focused on cloud-based enterprise agents, a solo builder can now use lightweight, open-source models to relaunch privacy-centric versions of these workflows. The wedge today is building hyper-specific agentic micro-SaaS that solves one unglamorous taskβlike dental supply arbitrageβwithout the data-privacy overhead of the 2025 giants.
Autonomous undersea vehicles to deter maritime invasions.
Secure access control and authorization platform for agent workflows
We audit medical claims for self-insured employers and health plans.
AI platform that automates chemical experiments with one-click execution and real-time insights for pharma and biotech.
RNA-based AI for better drugs and smarter clinical trials.
Firmware in minutes, not months - rigorously tested on real hardware
AI agents for in-person sales teams, starting with coaching
AI-native video production software that automates post-production
AI agents for distributors and manufacturers to automate order entry.
Connect any LLM to any MCP tools and create complex agents in minutes.
Help AI data centers unlock more compute and become more efficient
World's largest crowdsourced benchmark for AI-generated design
Helping scientists and engineers run experiments with AI.
Most Powerful AI Video Gen Model for Explainer Videos From Documents
A hardware-free GPS alternative that tracks movement anywhere on Earth using device-embedded sensors and neural networks.
Crazy fast, open source infra for AI agents to use the Internet
Build AI agents for field technicians to diagnose and sell 10x better
Build AI coworkers using natural language, it's Lovable for agents
Palace plans, coordinates, and executes daily ops for trucking fleets
AI-native CRM for putting post-sales operations on autopilot
Identity-aware VPN and proxy for remote access to anything, anywhere.
Infrastructure for hospitals to monitor and deploy clinical AI
Helping commercial real estate brokers find and close more deals.
Automating clinical trials, starting with patient recruitment.
We automate creator marketing for the world's largest brands
AI agents that automate administrative work across college campuses.
The Cursor for Chip Design - Delivering Silicon-Ready Chip Designsβ¦
AI powered brokerage reducing residential rental commissions in NYCβ¦
Building tiny frontier AI models that run on edge devices
Al platform that makes social marketing as easy as running a Googleβ¦
Automatically blocking risky behavior with real-time governance agents