PermitFlow provides software to prepare, submit, and manage construction permit applications.
PermitFlow provides software that helps developers, contractors, and architects prepare, submit, track, and manage construction permits and related documents. It supports building, mechanical, electrical, and plumbing permits. Founded in 2021 by Samuel Lam and Francis Thumpasery, it is based in New York, US, and was at Series B stage. In December 2025, it raised USD 54 million led by Accel; Kleiner Perkins, Felicis Ventures, Initialized Capital, Altos Ventures, and Y Combinator also participated.
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