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"Bath Built Is Best Built" Part of General Dynamics Marine Systems, Bath Iron Works is a full service shipyard specializing in the design, building and support of complex surface combatants for the U.S. Navy.
TSM Corporation is a Auburn Hills, MI-based company in the Manufacturing sector.
Alma Products, founded in 1944, specializes in the remanufacture/manufacture of automotive and industrial components including:
Austin Westran is a Byron, IL-based company in the Manufacturing sector.
Even though Sigma Tek has only been around since 1983, it has a long, rich history. People such as Captain Lewis A. Yancy, Rear Admiral Richard E. Byrd, Colonel Jimmy Dolittle and Colonel Charles A. Lindbergh have indirectly been a part of Sigma Tek`s past through their association with EDO Corporation and Aircraft Radio Corporation, know to us today simply as ARC.