
The global market for electrical transformers was valued at $63.13 billion in 2024, with Asia Pacific holding the largest share at 38% and North America accounting for 30% of the revenue. Thomasnet.com lists over 1,280 transformer suppliers in the USA, with California, Illinois, and New York among the top states for transformer suppliers. MPS Industries, Inc., for example, is based in California and manufactures transformers for the automotive, medical, and consumer electronics sectors.
| Characteristics | Values |
|---|---|
| Location | United States |
| Organization | Transformer Manufacturing Association of America (TMAA) |
| Year of Formation | 1955 |
| Focus | Industry standards, best practices, safety, technology, regulatory compliance, innovation, and collaboration |
| Notable Members | The Electric Service Company (ELSCO), UTB Transformer, Olsun Electrics, Meta Power Solutions (MPS), Core Transformer |
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What You'll Learn

The Transformer Manufacturing Association of America (TMAA)
TMAA was formed in 1955 to advocate for industry standards and promote best practices. It provides its members with safety, technology, and regulatory compliance information. The association encourages producers to collaborate and innovate to progress the industry, and it acts as a singular voice for the industry in Washington, D.C., advocating for the interests of the domestic transformer manufacturers and their vendors.
TMAA's members cover the globe but all support the production of power and distribution transformers in the U.S. The association has been actively involved in numerous initiatives impacting the sector. TMAA's influence and advocacy are particularly important as the U.S. replaces its aging infrastructure and transitions to renewable and distributed generation.
TMAA's members include prominent companies in the transformer industry, such as Delta Star, Inc., GEORG, and Niagara Power Transformer, who have benefited from the association's representation of their interests and its flow of information impacting operations.
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Electric Service Company (ELSCO)
The Electric Service Company, or ELSCO, was founded in 1912 by former Westinghouse engineers led by John F. Shoemaker. As the first independent transformer repair facility in the US, the company swiftly rose to prominence due to early transformer failures, with Westinghouse and other major manufacturers as significant clients. Over the years, ELSCO has become a prominent voice in the electrical transformer sector, advocating for industry standards and promoting best practices. They provide their members with safety, technology, and regulatory compliance information, and encourage collaboration and innovation to advance the industry.
ELSCO is a privately owned company that has been controlled by five generations of electrical engineers. They have always specialised in transformers and are committed to meeting the demands of their customers. The organisation handles various types of transformers, offering affordable rates and transparent transactions. While I cannot confirm whether they own the map of electrical transformers, their expertise and longevity in the industry suggest they may have a significant role in its development and maintenance.
The manufacturing and maintenance of power transformers in the United States is vital to the country's electrical infrastructure. Companies like ELSCO that provide high-quality, dependable solutions across a wide range of sectors are shaping the future of electric power systems. They focus on innovation, strict standards, and great customer service, ensuring strong performance and safety.
Other leading power transformer manufacturers in the US include UTB Transformer, which designs and manufactures electrical transformers for various industries, and Olsun Electrics, a major American manufacturer of specialist transformers with approximately 75 years of expertise. Meta Power Solutions (MPS) is another top North American manufacturer, specialising in both bespoke and conventional transformers for utilities, solar power, and bitcoin mining. These companies, along with ELSCO, play a crucial role in ensuring the reliability and advancement of electrical systems in the country.
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UTB Transformer
UTB has a large database of used, new, and rebuilt transformers, including substation transformers, unit substation transformers, generator step-up transformers (GSU), transmission auto transformers, mobile transformers, and distribution pad mount and pole mount transformers. The company provides a full turnkey package to its customers, offering services such as inspection, testing, dis-assembly, loading, transportation, parts replacement, reconditioning, off-loading, assembly, and commissioning.
UTB's reconditioning process addresses oil leaks, which can be caused by aging and deterioration, rust, mechanical defects, or inadequate maintenance. They also provide rewinding services for transformers.
The company prides itself on its quick response times, creative solutions, and dedication to customer satisfaction. UTB aims to be a trusted and valued partner to its customers, approaching every project with enthusiasm, professionalism, honesty, and integrity.
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Olsun Electrics
Olsun's product scope quickly expanded to include power and distribution transformers and reactors. The company initially focused on serving original equipment manufacturers (OEMs) and brand label opportunities. They have successfully served various OEM transformer accounts continuously since the 1960s, and brand labeling of Olsun American transformers for leading broad-line electrical manufacturers remains an important part of their business.
Olsun's dry-type transformers are known for their unique features, such as tamper-resistant, high-security, compartmentalized designs with padlockable doors. They are also UL Listed and Labeled, efficient, cost-effective, and low maintenance. Olsun Electrics is certified as a Women's Business Enterprise (WBE) by the Women's Business Enterprise National Council (WBENC), recognising it as a woman-owned business in the United States.
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Meta Power Solutions (MPS)
The global transformers market was valued at $63.13 billion in 2024, with Asia Pacific holding the largest share at 38% and North America accounting for 30% of the revenue. There are over 1,280 transformer suppliers in the USA, with California, Illinois, and New York being the top three states by the number of suppliers.
MPS's expertise lies in its ability to customize products to meet the specific needs of its clients. Their transformers are designed to efficiently transmit electrical power across grids, buildings, and machinery, ensuring safe and reliable operations. With a focus on quality and compliance, MPS has established itself as a trusted supplier in the power solutions industry.
The company's location in California, a state with a high concentration of transformer suppliers, underscores its proximity to a robust supply chain and a talented engineering pool. This strategic positioning enables MPS to respond swiftly to market demands and collaborate with leading industry players.
By leveraging its technical expertise and adhering to industry standards, MPS has solidified its presence in the competitive landscape of power solutions. Their commitment to innovation and customer satisfaction positions them well for sustained growth and continued contribution to the advancement of power transmission technology.
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Frequently asked questions
Some of the leading power transformer manufacturers in the USA include UTB Transformer, Olsun Electrics, and Meta Power Solutions (MPS).
The TMAA was formed in 1955 to represent transformer manufacturers in the United States. It advocates for industry standards, promotes best practices, and provides its members with safety, technology, and regulatory compliance information.
ELSCO, or the Electric Service Company, was the first independent transformer repair facility in the US, founded in 1912 by former Westinghouse engineers led by John F. Shoemaker.
MPS, established in 2014 by industry veteran Daniel Howard, specializes in both bespoke and conventional transformers for sectors such as utilities, solar power, and bitcoin mining.


















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