Our members cover the globe, but all build and support the production of power and distribution transformers in the U.S.
The Value TMAA provides:
TMAA serves as a strong, consolidated voice of the domestic transformer manufacturers and their supply chains.
Some of our current members are highlighted below:
At Delta Star, we’ve set our sights on being the leading transformer manufacturing and substation services company in the industry, and one that continuously improves the performance, delivery and reliability of power to meet the energy needs of the future.
For over 100 years, Niagara Power Transformer has produced special application and medium power transformers for service in the most extreme conditions and demanding applications anywhere in the world.
Since 1929, Pennsylvania Transformer has been a leader in building the US electric grid. Our long legacy of supplying high-quality, long-lasting power transformers continues under the Quanta Services umbrella.
We at Virginia Transformer are transforming power for America as the largest U.S.-owned manufacturer of transformers in North America with more than five decades of experience in the custom design and manufacturing of power transformers
Prolec GE, a Prolec subsidiary of a joint venture between GE and Xignux, a Mexico-based private company, is an electric industry leader in the Americas with six manufacturing facilities strategically located in Mexico, the United States, and Brazil and an installed product base in more than 35 countries. Its broad power transformer services offering in the U.S., as well as its wide variety of transformer components, complement Prolec GE’s full line of transformer solutions for the generation, transmission, and distribution of electrical energy for utilities, co-ops, municipalities, renewable project developers and original equipment manufacturers.
JFE Shoji is one of the largest processors and part producers for electrical steel products globally. Owned by JFE Holdings (Japan), and along with JFE Steel, global electrification relies on our products. We have a long and proud history in North America and are one of the largest suppliers of electrical steel cores to North American power and distribution transformer OEMs.
Copper Development Association Inc. (CDA) is a U.S.-based, not-for-profit association of the global copper industry, bringing together the North American copper and copper alloy semis fabricators and global copper mining and production industries. CDA is committed to promoting the proper use of copper materials in sustainable, efficient applications for business, industry, and the home
At Rea Magnet Wire, we power the world – at work, at home, and on the road. As a leading supplier of magnet wire and nonferrous metals, we’ve earned a reputation for providing an exceptional customer experience and first-class quality & collaboration.
As world-leading supplier of transformer production equipment, GEORG is a proud member of TMAA helping the transformer manufacturers to enhance and improve their production capacities and technologies.