MarkosWebWeb intelligence for the agentic economy

Active companies

Companies their accelerator lists as active, or whose site is alive. 17,199 companies.

clusterConsumer 1,789B2B SaaS 1,712Fintech 1,483Healthcare and bio 1,425Vertical AI agents 1,409Robotics and physical world 1,248Commerce and marketplaces 1,098Climate and energy 799Other 615Developer tools 552Agent infrastructure 440Security and compliance 402Data for AI 381AI infra and compute 295Horizontal AI assistants 244Defense and space 221
year2027 12026 1,0422025 1,5772024 1,7762023 1,5742022 1,4102021 1,2142020 8112019 7922018 6562017 5302016 4432015 3912014 249
sourceTechstars 4,974Plug and Play 4,832Y Combinator 4,296500 Global 1,551Entrepreneur First 468Alchemist Accelerator 445a16z speedrun 241South Park Commons 184Pear VC 175Sequoia Arc 33
CompanyClusterProgramStatusLast signal
FastAPI Labs

FastAPI Labs helps developers build apps and APIs.

Developer toolsApp and API development toolsSequoia ArcArc 2024Active, new domain2026-08-23