Irvine, California-based Bluon, Inc. — a company that offers tools, training and round-the-clock tech support to HVAC-R technicians — announced the closing of its Series B round with $27.6 million in equity financing.

The financing round was led by Bluon’s existing primary capital partner, Ecosystem Integrity Fund, and included significant participation from MacKinnon, Bennett & Company, a Canadian growth equity firm.

The efforts add to Bluon’s recently completed $9 million in venture debt, the company said. “The new capital will be primarily used in developing Bluon’s e-commerce platform (BluonLive) and in particular for software development and rapid growth in its sales teams and technician support teams,” the company said.

Bluon said the round also included participation from two significant HVAC industry players: Ferguson and Reece through their venture arms, Ferguson Ventures and Superseed Ventures, respectively.

“This is a seminal moment for Bluon,” said Peter Capuciati, chairman and CEO. “With the caliber and type of investors participating and our ever-growing list of commercial partners, it is clear the HVAC-R industry can see the power and potential of Bluon’s demand-based support platform and our imminent evolution into the first true brand-agnostic, e-commerce platform in all of HVAC-R.”

Bluon said its app and support platform is the first mobile app to become self-adopted at scale by HVAC-R technicians.