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D&D Instruments is a Minneapolis, MN-based company in the Manufacturing sector.
Devils Lake Water Sports is a Manitou Beach, MI-based company in the Manufacturing sector.
Hercules Manufacturing Company is a Henderson, KY-based company in the Manufacturing sector.
Western Power Products Inc. is a company that provides engines, parts, and components for various applications, including OEMs, marine, irrigation, drivetrain products, alternative fuel engines, and machinery.
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.