FlowManual (YC S26) — AI for Construction's back office
FlowManual is the all-in-one AI estimating, bidding, and purchasing platform for both general and MEP construction contractors. Built by two engineers and Harvard dropouts, FlowManual automates the buying process during pre-construction.
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What it does AI for Construction's Back Office (source)
Example from a real report (our sample on Target): “In March 2026, Target announced a planned incremental $1 billion operating investment” Source: Target Corporation (press release)
FlowManual is the all-in-one AI estimating, bidding, and purchasing platform for both general and MEP construction contractors.
Built by two engineers and Harvard dropouts, FlowManual automates the buying process during pre-construction. With FlowManual, specialty contractors win more work while general contractors deliver at higher standards.
What the site is built with
Next.jsframework
Read from the page's own HTML and response headers on 10 September 2026, at https://flowmanual.com/. Each badge matched a string the site serves about itself — hover one to see which. Nothing here is a traffic, ranking or revenue figure: those cannot be read off a page and are not claimed.
Checked away from the directory entry. What is below does not come from the company's Y Combinator page.
FlowManual: AI for Construction's Back Office
The all-in-one AI platform for construction's back office. FlowManual cuts the repetitive work across bid, buyout, and contract review so contractors win more work.
The title and description the site itself served, answering 200. Not a cached copy and not the company's directory entry — what was live when we asked.
David Shijoon Bae
Founder/CEO
Co-founder & CEO @ FlowManual. Automating Construction Contract Procurement. Previously MechE @ Harvard.
Michael Lin
Founder/CTO
Co-Founder and CTO at FlowManual. Previously SWE intern at Dijie, where he built a video-based landing page that scaled revenue from $3K to $336K MRR and reduced latency from 800ms to 100ms. Published CS researcher at UC Santa Cruz, co-authored paper submitted to IEEE IV 2025.
Founders, titles and bios as the company published them. Photographs are our own copies of the ones on that record, so they do not break when the original link expires.
One of 51 companies held here in Real Estate and Construction › Construction.
No investor is drawn from a Form D — the form states how many invested and never who. The one investor on this graph is named because a batch has exactly one.
Want the whole picture on FlowManual?
Example from a real report (our sample on Target): “In March 2026, Target announced a planned incremental $1 billion operating investment” Source: Target Corporation (press release)
A Full Report on FlowManual: verified, sourced, every claim cited, ready in a few minutes. See pricing.
What the Full Report on FlowManual covers
The Short Answer
Which Company This Is
What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
Warning Bells
Sources
6 cited sources found
Plus the sections for what you are deciding, which you pick after ordering.
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