The round was led by Prudence, an early-stage venture firm investing in vertical AI companies leading the global transformation of the built world, with participation from Zero Infinity Partners, Founder Collective, Villain Capital and Optimist Ventures.

Rebar has developed the AI operating system for the HVAC industry, leveraging their proprietary models to automate the estimating and quoting process for contractors and distributors. Customers can quote jobs in minutes instead of hours or even days, allowing them to submit more bids at a lower cost and win more business.