VT has long-established relationships with many of the major engineering-consulting firms throughout the U.S. that design and procure substation equipment for utilities, and is recognized as the fourth largest supplier of power transformers in the U.S. VT is known for its extensive in-house engineering staff, and respected as a custom designer and manufacturer of transformers. This fact is of critical importance to our clients, who are charged with the responsibility to provide dependable, uninterrupted power to hundreds of thousands of customers.