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PermitFlow

New York, NY, USA80+ employeesSeries B+ raised
Construction's AI Platform

Construction's AI Platform

YC W22

About the Company

PermitFlow is redefining how America builds. Pre-construction remains one of the most broken and manual parts of the $1.6T construction industry, causing massive delays, wasted capital, and lost opportunity across the built world. Our AI workforce delivers unprecedented speed, accuracy, and visibility to pre-construction — accelerating housing development, enabling clean-energy projects, and driving economic growth in communities nationwide. To date, we’ve powered over $20B in real estate development, helping builders and contractors move faster, reduce risk, and scale with confidence.

We’re entering hypergrowth with clear product-market fit and a world-class team from top AI and construction companies. We’ve raised over $36.5M from Kleiner Perkins, Initialized Capital, Y Combinator, Felicis Ventures, and Altos Ventures, alongside backers from OpenAI, Google, Procore, ServiceTitan, Zillow, PlanGrid, and Uber. We are on a mission is to modernize how the built world operates.

Founders

Samuel Lam
Samuel Lam

Sam developed workflow tooling for reporting and payments with unique company and municipality requirements as a software engineer at Uber Eats. He previously co-founded NXTFactor, an online marketing agency and studied Computer Science & Statistics at Harvard.

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