Guide Startups

Semble AI

Fall 2025 · Active

Autonomous building-system design for construction companies.

Location: San Francisco, US

Founded: 2025

Team size: 2

About

Semble AI builds AI agents that design building-systems (fire, HVAC, plumbing, security). Construction companies use Semble to cut down weeks on commercial and residential projects. The $600B building-system integration industry still runs on spreadsheets and manual drawings, even as building codes rapidly evolve and become more localized. It’s a massive blind spot for the tech world. Jonathan and Ethan met studying computer science at Stanford. Jonathan worked at Convergint, one of the world's largest building system integrators, specifically for the purpose of learning how this industry works. Ethan is obsessed for a different reason: His house burned down in 2017 due to a faulty fire system. They are determined to make Semble the industry standard for construction design.

Founders

  • Jonathan TyshlerFounder

    Co-founder and CEO of Semble AI; previously economics and computer science at Stanford.

  • Ethan BoyersFounder

    Co-founder and CTO at Semble AI; previously, math and computer science at Stanford.