ESL Celebrates 25 Years!


On April 21st ESL celebrated our 25th Anniversary with customers, vendors, friends and family at our facility in Corona, CA. The highlight of the night was catching up with the many individuals whom have helped us get to where we are today.

ESL's 25th Anniversary

Founded in 1991, ESL began as a custom control panel business located in Yorba Linda, CA with just 4 part-time assemblers. In 1995, ESL Power Systems, Inc. emerged as a manufacturer of safety-interlocked reefer outlets, and soon began to develop cord-connected electrical power equipment for a wide variety of industrial and commercial applications. Thirteen years after founding, the ESL Family of Companies moved 8 miles east to our current facility in Corona, CA. After 25 exciting years, ESL Power Systems, Inc. now operates once again as a single company and has over 130 employees. We are one of the largest manufacturers of reefer outlets worldwide supporting Intermodal Container industry and Port Terminals, and we are known as the “best-in-class” builders of Ship-to-Shore Power Mounds, Company Switches for Set Stage applications, and also for our StormSwitch and TripleSwitch product lines for back-up power solutions during grid outages. And, of course, ESL is still the premier Custom Control panel Builder in Southern California!

ESL thanks those who have contributed to our success the past 25 years and we look forward to continuing to work with you for many years to come!

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