About RESA Power

RESA Power strives to be the premier, first-choice, trusted provider in the U.S. and Canada for critical power services and products by delivering the best customer and employee experience in the industry. We assist in addressing system safety, reliability, operability, and efficiency. We have provided electrical solutions to thousands of companies throughout the United States and Canada, on both a routine and an emergency basis, since 2003.

Our mission is to ensure reliable and safe mission-critical power across our customers’ electrical infrastructure lifecycle.

When you need an expert power solutions company to handle the servicing of major power distribution and control equipment, choose RESA Power. We have one of the largest inventories of vintage and hard-to-find components in the industry. Partnering with RESA Power enables our customers to extend the life of their systems through our predictive and preventative maintenance services.

careers team work icon

Our Motto: “Reliable and Safe. The Power of Us.”

RESA Power is a power solutions company that offers reliable and safe services that add value for our customers and their everyday operations. We live our motto, “Reliable and Safe. ​​​​​​​The Power of Us,” as we perform our daily operations safely, efficiently, and thoroughly while empowering and enabling our customers to do the same.

line chart numbers increasing icon

National Footprint

At RESA Power, we combine the national access and expertise of a large-scale provider with the speed and service quality of a trusted local partner. Our national footprint (25+ Businesses in more than 20 locations across the U.S. and Canada) enables us to deliver a consistent level of expertise and power services wherever our customers are located. To view the current RESA Power locations and service areas, just click on the map below. Please check back often, we are constantly growing.

white check mark icon

RESA Power Heritage

RESA Power began in 2003 when Relectric Supply Company, LLC, our components subsidiary, was founded in San Jose, California. The name RESA Power developed over time from the combination of two companies’ names: Relectric and the acquisition of Satin American, founded in 1928 in Shelton, CT. The combining of these two companies laid the foundation on which RESA Power was built.

Over the next 10 years, in response to customer demand and market opportunity, RESA Power expanded to include electrical testing and engineering services. By 2016, multiple acquisitions expanded our portfolio to include Switchgear Unlimited in Plant City, FL; DYMAX Services in St. Paul, MN; Energy Systems Services in Stow, OH; West Coast Switchgear in Cerritos, CA; and Transformer Testing and Repairs in Fairfield, CA.

Now, the RESA Power family includes more than 20 locations throughout the United States and Canada. We are proud to serve our customer base of power management companies nationwide with full-service solutions.

As the “Acquirer of Choice” within the power service industry, RESA Power expects to welcome many more companies into our network over the next few years. If you are interested in learning more about joining the RESA Power family, please visit Company Acquisitions for more information.

careers team work icon

RESA Empowered

Originally, back in 2012 name “RESA” came from the combination of two company’s names – Relectric (founded in 2003 in San Jose, CA) and Satin American (founded in 1928 in Shelton, CT) – which laid the foundation of our company.

Over time, RESA has grown significantly and increased the significance of its meaning, and we believe that our current motto accurately represents how we now are in the present – “Reliable and Safe. ​​​​​​​The Power of Us”.

WHY Choose RESA Power?

RESA Power is the power solutions company you can trust to handle every aspect of your power equipment needs. Years of experience have guided us to make sure our customers have access to everything they need, from engineering and design to installation and electrical maintenance and testing services.

Workplace Safety

Industry-leading safety culture ensures our employees are well-equipped to work safely in our facilities and at customer sites.

Tailored Solutions and Service Quality

Customized solutions for our customers’ unique power systems needs.

Holistic Solutions Offering

The comprehensive suite of power distribution centers for power system safety, reliability, and efficiency.

National Reach

Our national footprint enables RESA Power’s broad reach and ensures timely service delivery.

Technical Expertise and Reliable Equipment

Ensures customers are empowered to meet increasingly stringent regulatory & insurance needs.

Hard-To-Find Vintage Component Inventory

Provider of new, reconditioned, and obsolete circuit breakers, electrical distribution, and control components.

Highly Skilled NETA-Certified Technicians

RESA Power provides preventive NETA-certified maintenance and acceptance testing services for both new and existing power components and systems.

Transformer Oil Testing Lab Services

Our laboratory offers a full range of transformer oil tests in accordance with ASTM Standard Test Procedures and diagnostic recommendations are based on IEEE Standard guidelines. Gain free access to the RESA Power Transformer Assessment Portal (RESA TAP) today.

A Power Solutions Company for All Account Sizes

We provide certification and licenses to service and distribute to large regional and national accounts.

Learn More About RESA POWER Services

Electrical Testing & Diagnostics


Electrical Testing & Diagnostics
Maintenance & Repair
Acceptance Testing
Engineering Studies

Learn more
Maintenance & Assembly


Maintenance & Assembly
Coil Rewinding
Oil Testing Services
New & Used
Transformer Sales

Learn more
Remanufacture & Custom Build


Remanufacture &
Custom Build of
Infrastructure &

Learn more
Broad Inventory of Electrical Equipment


Broad Inventory of
Electrical Equipment &
Components Including
Older Vintage &

Learn more

A Power Solutions Company With a National Footprint

At RESA Power, we provide our customers with the resources and expertise of a national power solutions company with the speed and service quality of a local partner you can trust. Our network includes more than 20 locations across the U.S. and Canada. We’re proud to provide reliable power services wherever our customers are located. Explore the map below to see our locations.


RESA Power has more than 30 service locations across the United States and Canada, including a transformer oil testing laboratory and specialty distribution centers to ensure our customers’ critical power systems are safe, reliable, and operating at peak efficiency. Click on the service center nearest to you for more information.