Founded by the Roberts family in Rockville, Maryland, in 1966, Roberts Oxygen Company remains an independent distributor serving customers across nine states. With 57 locations, the company is known for pairing regional availability with technical support for industrial and medical gas users, laboratories, and welding customers.
Dale Oxygen, IncDale Oxygen, Inc. is a family-owned and operated regional gases and welding supply distributor founded in Johnstown, Pennsylvania, in 1939. Now in its third generation of family leadership, the company supplies industrial, medical, and environmental markets and operates five retail and warehouse locations across Pennsylvania, with service reaching nearby Maryland and West Virginia.JOHNSTOWN, PA
Indiana Oxygen CompanyFounded in 1915 by Walter Brant and his brother John, Indiana Oxygen Company is an independently operated, family-owned gas and welding supply business that serves Indiana and surrounding markets. The company distributes industrial, medical, and specialty gases and welding supplies, and also fills gas cylinders and designs and builds gas supply systems. Its company history describes it as the country's oldest gas and welding supply distributor.DAYTON, OH
Keen Compressed Gas CoKeen Compressed Gas Co. supplies welding equipment and industrial and medical gases, with on-site dry ice production and related rental, repair, and delivery support. Founded in Wilmington as Keen Auto Parts in 1919, the family-owned company began selling acetylene and oxygen in 1928 and now operates 13 Mid-Atlantic locations with more than 140 employees. Its automated fill plant received ISO accreditation in 2019, the company’s centennial year.NEW CASTLE, DE
CGI International CorporationFounded as a welding company in 1948, CGI International Corporation has grown into a third-generation Zullo family business that manufactures and distributes hydrogen, carbon dioxide, and other industrial and residential gases. Based in Washington, Pennsylvania, it operates as one of the largest independent gas suppliers in the Northeast and Mid-Atlantic, with distribution reaching 18 states. CGI also launched the first privately held hydrogen production facility in the United States during the 1980s and remains closely tied to emerging low-carbon energy markets.WASHINGTON, PA