Daikin Applied Americas (Minneapolis) made a majority investment in Modular Comfort Systems (Syracuse, N.Y.).

Airtron Heating & Air Conditioning (Columbus, Ohio) acquired Sierra Air Conditioning Inc. (Las Vegas) and two related companies.

RESIDENTIAL CONTRACTORS

Leap Partners (Nashville, Tenn.) acquired Master Plumbers Heating and Cooling (Greensboro, N.C.).

MANUFACTURERS

Bryant Heating & Cooling (Indianapolis), a Carrier company, celebrated its 120th anniversary by raising $113,000 to support food banks.

Madison Air (Lexington, Ky.) named Leah Larson group president of its Air Movement and Heat division.

A.O. Smith Corp. (Milwaukee) was recognized as one of the World’s Most Ethical Companies by Ethisphere (Scottsdale, Ariz.).

ORGANIZATIONS

Michelle Dreyer, chief revenue officer at Visual Communications Co. (Carlsbad, Calif.) joined the global industry practices committee of the Electronic Components Industry Association (Alpharetta, Ga.).

SCHOOLS

HVAC Excellence (Mount Prospect, Ill.) accredited the HVACR educational programs at Northern Virginia Community College (Woodbridge, Va.), River Parishes Community College (Reserve, La.), the State Technical College of Missouri (Linn, Mo.), and Pulaski Technical College at the University of Arkansas (North Little Rock, Ark.).

CONTRACTOR SERVICES

Site Pro Rentals (Dallas) named Lon Jennings its new president. Jennings was formerly president of Hydradyne (Fort Worth, Texas).

FINANCIAL REPORTS

Hudson Technologies Inc. (Woodcliff Lake, N.J.) reported fourth-quarter 2024 revenue of $34.6 million, a 23% decrease compared to the same period in 2023. Total 2024 revenue of $237.1 million, a decrease of 18% compared to 2023, was also reported.

Service Titan (Glendale, Calif.) reported revenue of $209.3 million for the quarter that ended January 31, a 29% increase over the same quarter of the previous fiscal year. Total revenue for the last fiscal year was $771.9 million.