Serving Western Pennsylvania since 1941, Greco Gas is a regional supplier known for pairing local welding-industry service with in-house gas production. Its Tarentum headquarters supplies manufacturers, fabricators, and welders through a packaged-gas filling plant and specialty gas laboratory, with additional branches in Butler and Kittanning.
PurityPlus Specialty Gas Quality Program
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U.S. Department of Transportation Hydrostatic Testing License
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FDA Medical Gas Purity and Packaging Regulations
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Geer Gas CorporationEstablished in Columbus in 1986, Geer Gas supplies packaged and bulk gases to businesses across central Ohio and operates full-service welding-supply showrooms at four locations. Its service ranges from single-cylinder delivery to on-site propane and CO2 fills, emergency response, and authorized welder repair. The Newark branch also carries the legacy of Wince Welding Supply, a local welding business whose roots reach back to the 1920s.COLUMBUS, 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
Butler Gas ProductsA three-generation, family-owned Pittsburgh business, Butler Gas Products has been serving packaged-gas customers since 1948. The company is known for bringing manufacturing capabilities together with regional distribution, helping businesses manage their gas supply from individual cylinders through bulk systems. Its CYLTRAK tracking service reflects the practical, hands-on approach that has shaped the company’s family business culture.MORGANTOWN, WV
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