MGM Transformer Company, was established in 1975 as a dry transformer manufacturer. After the acquisition of Sierra Transformer Company in 1982, MGM introduced liquid units to its product line. By 1990, MGM Transformer had grown to become the largest independent transformer manufacturer west of the Mississippi. Some of the products specialized to offer through GT Sales include: 600 volt dry type distribution transformers. MGM transformers meet the new DOE 2016 efficiency standards. Also specialize in custom built, D.I.T, K-Factor, Substation Transformers, Copper or Aluminum Winding and more.

Stocking Location


GT Sales

Located in Salt Lake City, UT, GT Sales is your hub for links and information to the finest manufacturer’s of electrical products being sold in the commercial, industrial, residential, utility, HVAC and O.E.M. markets.

MGM Transformer

Located in Los Angeles, CA, MGM Transformer Company opened a 120,000 square foot satellite manufacturing plant in 1991 for the production of 600V class general purpose lighting transformers.