
FlowManual builds AI software for construction contractors' back office, covering drawing takeoff, estimating, bid leveling, and document review.
flowmanual.comCrawled Sep 24, 2026
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Takeoff and estimating software for mechanical, ductwork, concrete, and general counting. Turn drawing quantities into estimates with your own rates.
How FlowManual collects, uses, and protects your data: encryption at rest, account-scoped access, and your rights to export and delete.
FlowManual terms of service, including disclaimers about document-analysis output and your responsibilities.
Aug 2026 · FlowManual (YC S26)External social post
FlowManual builds AI software for construction contractors’ back offices, covering document intelligence, bid-versus-contract comparison, invoice verification, takeoff counts, bid leveling, and material purchasing with price history. Founded in 2026 by Harvard dropouts David Shijoon Bae and Michael Lin, the San Francisco startup is part of Y Combinator’s Summer 2026 batch under partner Gustaf Alstromer and has raised a $130,000 seed in June 2026.
Jul 2026 · YespressNews article
Y Combinator’s 2026 construction and proptech cohort focuses on the industry’s costliest operational bottlenecks. FlowManual takes a broader approach, presenting an all-in-one AI bidding and purchasing platform for general and specialty contractors that automates the construction buying process during pre-construction.
Jul 2026 · MarketScaleNews article
KG Hub Insights reviews Y Combinator’s 2026 real estate and construction cohort, highlighting FlowManual, Foreman, Rudus, PLAN0 AI, and Helonic. The startups focus on structuring the repetitive information work around construction rather than replacing construction judgment, and the review outlines what buyers and observers should know about the cohort.
Jul 2026 · KG Hub InsightsNews article