Airgas, the largest US supplier of industrial, medical, and specialty gases, and related products, announced it has acquired the assets and operations of four businesses that complement the Airgas portfolio of products and services.

Combined annual revenues for the four acquired businesses are approximately $20m. Financial terms of the transactions were not disclosed.

US Welding and Safety Supply Co., with operations in Miami, Flordia, specialises in the distribution of welding equipment and welding-related hardgoods, such as consumables. US Welding joined Airgas USA, LLC’s South region effective December 3rd.

Industrial gas and welding supply distributors Rebel Welding and Industrial Supply, Inc., with operations in Vicksburg, Missisippi, and Tallulah, Louisiana, and Sadler Welding Products, LLC, with operations in Dothan, Eufaula, and Troy, Alabama, and Panama City, Florida, joined Airgas USA, LLC’s South region effective December 3rd and December 17th, respectively.

Rochester Welding Supply Corp., an industrial gas and welding supply distributor with operations in Rochester and Manchester, New York, joined Airgas USA, LLC’s Northeast region effective December 17th.

“Each of these businesses has a history of outstanding customer service and enhances Airgas’ position in its respective area,” said Les Graff, Airgas Senior Vice President - Corporate Development. “We welcome all of our new associates to the Airgas family and look forward to providing our new customers with the most complete offering of products, services, and expertise in the industry.”

Since the beginning of its fiscal year, Airgas has acquired 12 businesses with aggregate annual revenues of approximately $39m.