Downtobid (YC S19)
AI tools for construction preconstruction teams. Y Combinator S19.
Downtobid builds AI tools for construction preconstruction. The product essay describes an AI reader for construction plans: identify scopes of work, match a subcontractor list, generate a plan room and invitations to bid, and put that into a construction spreadsheet. Work on that reader started in October 2023. The essay says the team posted progress to Reddit’s estimator community while the citations UI went through several versions.
Downtobid went through Y Combinator (S19). The fundraising essay includes the YC application video and says a $1.1m pre-seed was raised after demo day.
The 2024 about page said Downtobid was profitable, served more than 100 customers, was no longer on the venture track, and that Andy had stepped away to work on a next idea while founders still helped part-time. The same page, and the fundraising essay, use $4.5m as the total raised across BasisBoard and Downtobid.
Writing: Building an AI-construction plans reader and Raising $4.5m to modernize preconstruction .

TODO(andy): The old homepage said “$4.7m”. The fundraising essay’s rounds add up to $4.5m ($3.4m BasisBoard seed + $1.1m pre-seed), across both products. The August 2026 Kin essay says you and Kev sold Downtobid. What should this page say about the amount raised, and is the company sold or still operating? Also confirm https://downtobid.com/ is still the right link (the old homepage used www.downtobid.com with no scheme, which 404’d as a relative URL).