About Us

ESU is a California corporation founded by John DeFazio in 1976. The company is a manufacturers’ representative firm, specializing in construction, industrial, and energy management products for the electrical industry. Since its inception, the company has strived to exceed the demands and expectations of both its principals and customers, and surpass commonly accepted standards of performance. With these values and goals serving as the foundation of the organization, the company has since grown to become one of the largest, most effective representative firms in the electrical industry.

ESU’s corporate headquarters in Santa Fe Springs, California, boasts more than 200,000 square feet of office and distribution space. ESU maintains resident sales representatives in all markets served, with both mobile and home offices.

The ESU staff of fifty (50) dedicated professionals includes fourteen (14) management and sales representatives, twenty three (23) customer service and operations associates, twelve (12) service center associates and one (1) IT Manager.

ESU continues to reinvest capital in state-of-the-art sales force automation, communication and information technology in an effort to remain at the forefront of the electrical industry.