Welcome to ESS Corporation Providing high quality products and solutions for an array of high voltage needs

At ESS, we value our reputation as one of the most highly respected electrical substation contractors in the western United States. Based in Phoenix, AZ, we build electrical substations and install EHV apparatus, including large power transformers, for electric utility companies throughout the Southwest.

We only build one way – with a focus on quality and safety. That's why our client list contains some of the biggest names in our industry. We invite you to check out our services, explore our client list, and review some recently completed projects.

Our goal is to deliver complete substation construction projects that meet our customers' expectations the very first time, every time. If you have any questions or would like to discuss a project, please contact us at 480-926-0166.

  • Our Services

    At ESS Corporation we are committed to providing high quality products and solutions for an array of high voltage needs.

    Explore Our Services
  • Our Customers

    We’re trusted by many global manufacturers of power transformers as well as many utilities throughout the Southwest…

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  • Completed Projects

    Experienced in building substations from the ground up, including install of high voltage transformers, switching stations, reactors…

    Check Out Our Work