Browser
Simulated and live web environments where agents learn to navigate sites, fill forms, complete checkouts, and accomplish multi-step tasks across the open web. Because the real web is non-stationary and full of side effects, these startups build deterministic replicas of popular sites and sandboxed browsers with verifiable task completion signals.
10 startups
| Name | Domains | Location | Team | Funding | Raising |
|---|---|---|---|---|---|
| Anchor Browser Reliable browser automation platform for agentic AI | Browser, Agents Infrastructure | Tel Aviv | 1-10 | Seed, $6M (Blumberg Capital, Gradient Ventures, Nov 2025) | - |
| BenchFlow Open-source benchmark hub and eval infrastructure for agents | Enterprise, Browser, Coding | San Francisco | 1-10 | ~$1M (reported) | - |
| Browserbase Headless browser infrastructure powering web agents | Browser, Agents Infrastructure | San Francisco | 26-50 | Series B, $40M at $300M valuation (June 2025); $67.5M total | - |
| Halluminate Sandboxed RL environments for finance and enterprise workflows | Finance, Enterprise, Browser | San Francisco | 26-50 | - | - |
| Kaizen Browser agents that simulate and automate legacy web portal work | Browser, Enterprise | San Francisco | 1-10 | Seed, $500K (Y Combinator, Pioneer Fund) | - |
| Kernel Browser infrastructure for AI agents | Browser, Agents Infrastructure | San Francisco | 1-10 | Seed + Series A, $22M (Accel, 2025) | - |
| Matrices Browser-native training environments for web agents | Browser, Computer Use | San Francisco | 1-10 | ~$5M (reported) | - |
| Plato High-fidelity replicas of websites and software for agent training | Browser, Enterprise, Simulation | San Francisco | 1-10 | - | - |
| Silverstream AI Infrastructure and training data for reliable autonomous web agents | Browser, Machine Learning | San Francisco | 1-10 | Pre-seed, $1.2M (Gradient Ventures) | - |
| Steel Open-source browser API for AI agents | Browser, Agents Infrastructure | - | 1-10 | ~$17M (reported) | - |