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Lone Star Technologies, Inc. is a management and holding company with six principal subsidiaries, Lone Star Steel Company (Steel), Fintube Technologies, Inc. (Fintube), Bellville Tube Company, L.P. (Bellville), Wheeling Machine Products, Inc. and
Cutting Edge Supply is a Colton, CA-based company in the Manufacturing sector.
Pyramid Precision Machine is a San Diego, CA-based company in the Manufacturing sector.
Harmon Steel, Inc. is a North Vernon, IN-based company in the Manufacturing sector.
Synergistech, Inc. is a Lewisberry, PA-based company in the Manufacturing sector.