Phoenix Utility Services Company Purchased By Dallas’ Shermco Industries

August 7, 2019

Irving-based electrical maintenance and repair giant Shermco Industries Inc. is buying a Phoenix electrical testing and engineering company that services utilities.

Southwest Energy Systems, LLC of Arizona has specialized in electrical system management and testing since its inception in 2006.

Terms of the transaction have not been disclosed.

Shemco started in Dallas in the 1970s and has since grown into one of the largest electrical testing companies in the nation, with offices now spanning the US and portions of Europe.

The corporation is majority-owned by San Francisco-based middle market private equity firm Gryphon Investors.