Rebar Raises $14M Series A for Construction Vertical AI — Computer Vision Reads Blueprints, Doubled ARR in 6 Weeks

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Rebar raised $14M Series A to scale its AI operating system for commercial HVAC, electrical, and plumbing suppliers. Founded by ex-HVAC estimator Evan Brown, the platform uses proprietary computer vision to analyze construction blueprints, automatically identifying and counting equipment. Rebar doubled its ARR in the first six weeks of 2026, demonstrating the velocity possible when AI-native vertical tools target high-friction manual workflows in industries with shallow software penetration.