For more than 40 years, United States Fittings, Inc. has built its reputation in Twinsburg as a made-in-America manufacturer serving demanding industrial customers. The company produces custom pipe fittings for major corporations such as 3M, Dow, Exxon and Pfizer, tailoring its work to exact specifications and supplying the testing and material documentation those customers require.
SSP Fittings CorpFor a century, SSP Fittings Corp has manufactured fittings and valves from its single, vertically integrated U.S. operation in Twinsburg, Ohio. The third-generation family-owned company employs 200 associates and makes 100% Made-in-the-USA products, including specialized Alloy 400/405 and C-276 components, for demanding systems across industries such as aerospace and chemical processing.TWINSBURG, OH
Tylok International, IncCleveland-based Tylok International manufactures American-made fittings and valves for industrial flow and instrumentation systems. Its roots reach back to the mid-1940s, when Cullen Crawford patented the original flare-less fitting and founded Crawford Fitting Company, helping create the compression-fittings industry; Tylok has continued manufacturing in the United States for roughly seven decades. The family organization has specialized in oil and gas connections since 1955 and also supports demanding power, food-processing, and pulp-and-paper applications.CLEVELAND, OH
The Hollaender Manufacturing CompanyNow in its fourth generation of family ownership, The Hollaender Manufacturing Company has grown from Pete Hollaender’s 1930 Cincinnati plumbing shop into a U.S. manufacturer known for keeping production at home. Incorporated in 1946, the company makes aluminum pipe fittings and architectural railing systems for demanding settings ranging from industrial facilities to Kennedy Space Center launch towers. Its Cincinnati headquarters and Somerset, Kentucky operation now support more than 85 associates.CINCINNATI, OH
Flowline FittingsSince 1948, Flowline Fittings has been a New Castle, Pennsylvania manufacturer known for supplying mission-critical components to the U.S. Navy and other demanding industries. Its 100,000-square-foot U.S. facility supports custom pipe fittings and forgings for nuclear, defense, and industrial applications, with production backed by ISO 9001:2015 certification and Level 1 SubSafe approval.NEW CASTLE, PA