Less than a year into commercialization, the company is working with multiple large enterprise customers across thousands of projects per month

NEW YORK–(BUSINESS WIRE)–Rebar, a vertical AI platform building the core operating system for the HVAC, Electrical, and Plumbing industries, announced the closing of a $14 million Series A financing. 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’s proprietary vertical AI platform automates the processing of construction documents such as blueprints and spec books, extracting tens of thousands of data points from every new project. The company is leveraging this technology to automate the estimating and quoting process, fundamentally changing the ability for its customers – starting with HVAC contractors and distributors – to deliver quotes quickly and accurately. A process that has typically taken hours or even days can now be completed in minutes with greater levels of accuracy.

“I spent years completing estimates by hand and have a deep understanding of this process that industry participants deal with every day,” said Evan Brown, CEO of Rebar. “This is a pain point that previously seemed unsolvable with legacy technology, but leveraging our proprietary AI platform, contractors and distributors can spend less time buried in back-office work and more time with customers, winning new business.”

Quoting is one of the most critical workflows in construction, yet it remains highly tedious and manual. Historically, stakeholders have had to manually review large sets of architectural plans, in some cases amounting to hundreds of pages, in order to generate a quote for each job. Legacy technologies have been nothing more than a digital replication of the pen-and-paper process. Using Rebar, contractors and distributors are delivering more bids at a lower cost, leading to higher win rates and increased revenue.

“HVAC, electrical and plumbing are massive end markets that have historically had very little purpose-built technology and rely mainly on manual processes,” said Jordan Viniar, General Partner at Prudence. “By leveraging Rebar’s proprietary AI platform, these businesses are leapfrogging software and adopting a solution that is orchestrating and automating end-to-end workflows. This is orders of magnitude better than anything this end market has seen before and is both a cost saver and revenue generator. The Rebar team is perfectly positioned to capitalize on this opportunity with their mix of industry expertise and deep technical capabilities.”

The funding will further fuel the expansion of Rebar’s operating system, allowing the company to build additional agentic solutions solving pain points for more workflows and additional stakeholders across the HVAC value chain. The company is also planning to expand its product into adjacent verticals, such as electrical and plumbing, and to additional geographies both in the U.S. and internationally.

About Rebar
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. For more information visit www.withrebar.ai.

About Prudence
Prudence is an early-stage venture capital firm investing in vertical AI companies leading the global transformation of the built world. The firm invests across multiple verticals, including construction, real estate, and infrastructure. Prudence is an early investor in companies such as AI Clearing, Casafari, Clearstory, Compass (COMP), CREXi, Evernest, Hemlane, Maxwell, Planera, Propexo, Salus, Sundae, Trunk Tools, Uniti AI and VendorPM. The firm is headquartered in New York City and invests globally. Learn more at https://prudence.vc/

Contacts

Press Contact:
Name: Evan Brown
evan@withrebar.ai

(c)2026 Business Wire, Inc., All rights reserved.