MarkosWebWeb intelligence for the agentic economy

Active companies

Companies their accelerator lists as active, or whose site is alive. 17,200 companies.

clusterConsumer 1,779B2B SaaS 1,691Fintech 1,477Healthcare and bio 1,404Vertical AI agents 1,377Robotics and physical world 1,231Commerce and marketplaces 1,090Climate and energy 789Other 612Developer tools 546Agent infrastructure 433Security and compliance 395Data for AI 377AI infra and compute 284Horizontal AI assistants 234Defense and space 216
year2027 12026 1,0412025 1,5792024 1,7772023 1,5742022 1,4102021 1,2142020 8112019 7922018 6572017 5302016 4432015 3912014 249
sourceTechstars 4,974Plug and Play 4,832Y Combinator 4,296500 Global 1,552Entrepreneur First 468Alchemist Accelerator 445a16z speedrun 241South Park Commons 184Pear VC 175Sequoia Arc 33
CompanyClusterProgramStatusLast signal
Rivet

Build Real-Time, Stateful Applications Without Servers

Agent infrastructureBackend infrastructure for AI agentsa16z speedrunSR002Active, new domain2026-08-23