Transformer Manufacturers, Inc.
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Custom Transformers and Custom Magnetic Products

Custom TransformersSince 1949, Transformer Manufacturers, Inc.’s (TMI) expertise in manufacturing quality custom transformers and magnetic products has enabled us to solve problems for our customers while meeting or exceeding their specifications and requirements. We manufacture custom-designed audio transformers, power transformers (isolation transformers and autotransformers), choke transformers, toroid transformers, and printed circuit-mounted transformers for a wide range of industries.  Coil types include bobbin, layered, precision wound and toroidal, in single phase or 3 phase.

Transformer manufacturing is our core business and all products are proudly made in America. TMI serves the global market from our facilities centrally located in the Chicago transportation hub.

Rely upon Transformer Manufacturer Inc.  as your magnetics manufacturing partner for:

  • Value engineering
  • Prototyping
  • Quality centered manufacturing
  • Value-added manufacturing services
  • Just-in-time and other delivery options
  • High quality products
  • Custom solutions
Transformer Manufacturers, Inc.