ai-takeoffs
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Rebar
Rebar is a New York-based vertical AI company building hyper-specialized estimating software for commercial HVAC equipment suppliers. Its proprietary computer vision models read construction blueprints and spec books, identify and count HVAC equipment, and generate a bill of materials and quote - cutting takeoff time by roughly 60-70%. Founded in October 2024 by Evan Brown and Andrew Schwartz, Rebar raised a $14M Series A led by Prudence in March 2026 and plans to expand into plumbing and electrical.
Tangible
Tangible is a San Francisco climate-tech company that turns static construction drawings and 3D models into live materials data. Its AI-powered platform reads Revit models and PDF drawings to give preconstruction teams structured quantities, cost, and EPD-backed embodied carbon in one place - so developers, contractors, and architects can see the carbon and cost impact of a design and cut both before a building is ever poured. Founded in 2021 by Anneli Tostar and Nicole Granath, Tangible has raised roughly $8.8M and counts builders like Skanska, Prologis, and Hensel Phelps among its users.