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.


At RESA Power, we provide our customers with reliable and safe power solutions that add value to their everyday operations. Our motto, “Reliable and Safe. The Power of Us,” embodies the commitment we have to perform our daily operations with safety, efficiency, and thoroughness. We believe in empowering and enabling our customers to do the same, and we work tirelessly to ensure that our services meet their needs and exceed their expectations. With RESA Power, you can trust that your power solutions are in good hands.


At RESA Power, we take great pride in our history and the roots that laid the foundation for our company. Originally, back in 2012, our name “RESA” came from the combination of two company names – Relectric and Satin American – which came together to form a new, innovative power service company. Relectric, founded in 2003 in San Jose, CA, and Satin American, founded in 1928 in Shelton, CT, brought together decades of expertise and experience in the power industry, and their combination set the stage for the growth and success that RESA Power has experienced over the years.

Over time, RESA Power has continued to evolve and grow, expanding our services and capabilities to meet the ever-changing demands of the power industry. As we have grown, the significance of our name has also increased, and we believe that our current motto, “Reliable and Safe. The Power of Us,” accurately represents who we are and what we stand for today. We are committed to providing reliable and safe power solutions to our customers, and we believe that the power of our team and our network is what sets us apart from the competition.


At RESA Power, we understand the importance of local expertise when it comes to power solutions. That’s why 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 of 40+ locations across the U.S. and Canada allows us to deliver a consistent level of expertise and power services no matter where our customers are located. Whether you need maintenance, testing, or emergency services, we have the experience and resources to get the job done right. To see our current locations and service areas, simply click on the map below. And don’t forget to check back often, as we are constantly growing to better serve our customers.


RESA Power has a rich history that dates back to 2003, when our components subsidiary, Relectric Supply Company, LLC, was founded in San Jose, California. Over time, the name RESA Power emerged from the combination of two companies: Relectric and the acquisition of Satin American, which was founded in Shelton, CT in 1928. By bringing together the expertise and resources of these two companies, RESA Power was able to establish a solid foundation for providing reliable and safe power solutions to customers across the country. Today, we continue to build on this legacy by delivering exceptional service and expertise to our customers every day.

At RESA Power, we are committed to meeting the evolving needs of our customers and staying ahead of the curve when it comes to power solutions. That’s why over the past 10 years, we have expanded our services to include electrical testing and engineering. Through multiple acquisitions, we have added to our already-impressive portfolio, including 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. These acquisitions have allowed us to broaden our expertise and provide even more comprehensive solutions for our customers.

At RESA Power, we have come a long way since our beginnings in 2003. Today, our family includes more than 40+ locations throughout the United States and Canada, allowing us to serve our customers with unparalleled speed and efficiency. We are proud to offer full-service solutions to power management companies nationwide, providing everything from maintenance and testing to engineering and emergency services. Our commitment to excellence has earned us a reputation as one of the most trusted names in the industry, and we are dedicated to continuing to provide exceptional service to our customers for years to come.


RESA Power is dedicated to providing the best possible service to our customers, and we know that means constantly expanding our network of experts and professionals. As the “Acquirer of Choice” within the power systems industry, we are always on the lookout for companies that share our commitment to excellence and are interested in joining our family. We believe that by bringing together the best and brightest minds in the industry, we can continue to deliver exceptional service and innovative solutions to our customers for years to come. If you are interested in learning more about joining the RESA Power family, we encourage you to explore our Company Acquisitions page. Here, you will find more information about our acquisition process, as well as the benefits of becoming a part of our network. We believe that together, we can achieve great things and transform the power service industry for the better. So, if you share our passion for excellence and innovation, we invite you to join us on this exciting journey.


If you’re looking for a company that you can trust to handle every aspect of your power equipment needs, look no further than RESA Power. With years of experience in the industry, we have built a reputation for excellence and reliability, providing our customers with everything they need to keep their power systems running smoothly and efficiently.

At RESA Power, we are committed to providing the highest level of service and support to our customers, from the initial design and engineering stages to the installation and ongoing maintenance of your power equipment. Our team of experts is dedicated to staying up-to-date with the latest technologies and innovations in the industry, ensuring that we can provide our customers with the best possible solutions. So whether you’re in need of electrical testing services, emergency response, or any other power-related service, you can trust RESA Power to get the job done right.

At RESA Power, we are committed to providing exceptional customer service and support to meet your electrical power needs – whether it’s a small or large order, we strive to deliver the highest quality products and services to ensure your satisfaction. We look forward to the opportunity to serve you!

Workplace Safety

At RESA Power, we have built an industry-leading safety culture that ensures our employees are well-equipped to work safely in our facilities and at customer sites.

Tailored Solutions and Service Quality

We take pride in providing customized solutions that meet our customers’ unique power systems needs at RESA Power

Holistic Solutions Offering

At RESA Power, we offer a comprehensive suite of power distribution centers that are designed to enhance power system safety, reliability, and efficiency.

National Reach

With a national footprint, RESA Power is able to provide a broad reach and ensure timely service delivery to all of our valued customers.

Technical Expertise and Reliable Equipment

Our commitment to providing top-quality power system solutions empowers our customers to comply with increasingly stringent regulatory and insurance requirements.

Hard-To-Find Vintage Component Inventory

As a leading provider in the industry, RESA Power offers an extensive range of circuit breakers, electrical distribution, and control components that includes new, reconditioned, and obsolete products.

Highly Skilled NETA-Certified Technicians

At RESA Power, we specialize in offering NETA-certified preventive maintenance and acceptance testing services for both new and existing power components and systems, ensuring optimal performance and reliability for our customers.

Transformer Oil Testing Lab Services

Our state-of-the-art laboratory offers a comprehensive suite of transformer oil tests  that adhere to strict ASTM Standard Test Procedures and diagnostic recommendations based on  IEEE  Standard guidelines, and with the RESA Power Transformer Assessment Portal (RESA TAP), you can access these services for free today.

Learn More About RESA POWER Services

Electrical Testing & Diagnostics


Electrical Testing & Diagnostics
Maintenance & Repair
Acceptance Testing
Engineering Studies

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Maintenance & Assembly


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

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Remanufacture & Custom Build


Remanufacture &
Custom Build of
Infrastructure &

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Broad Inventory of Electrical Equipment


Broad Inventory of
Electrical Equipment &
Components Including
Older Vintage &

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A Power Solutions Company with a National Footprint and Local Reliability

RESA Power is a leading electrical power solutions company that provides critical power services and electrical solutions to customers across various industries. With a broad range of products and services, RESA Power offers engineering services, field services, specialty services, electrical maintenance, electrical testing, repair, commissioning, energy compliance, power system studies, and substation design and commissioning. The company’s primary focus is on providing reliable and efficient power solutions to customers in order to help them maintain their operations and minimize downtime.

As a power systems company, RESA Power has a team of experienced professionals who are dedicated to delivering high-quality services and products to customers. The company’s electrical power solutions are designed to meet the unique needs of each customer, and its team of engineers and technicians work closely with clients to ensure that their systems are operating at optimal levels. Whether it’s testing and commissioning of new equipment, or maintenance and repair of existing systems, RESA Power provides a comprehensive range of services to ensure that customers have access to the most reliable and efficient power solutions available. With a commitment to quality and customer satisfaction, RESA Power is a trusted partner for businesses across a wide range of industries.

At RESA Power, we understand that our customers need reliable power services that they can trust. That’s why we provide our customers with the resources and expertise of a national power solutions company, combined with the speed and service quality of a local partner. With more than 40 locations across the U.S. and Canada, we are proud to offer reliable power services no matter where our customers are located. Our team of experienced professionals is committed to providing exceptional service and support, and we use only the highest quality equipment and materials to ensure our customers receive the best possible service. Explore the map below to see our locations and learn more about how we can help meet your power needs.


RESA Power has more than 40 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.