SDMyers has been a pioneer in transformer maintenance and service for nearly a half-century, a span that includes over 500,000 serviced transformers, one billion gallons of dielectric fluid processed, and 37 million test results. More than just an analytical lab, SDMyers is an innovator in transformer maintenance training, educating over 17,000 students, and 20,000 Transformer Maintenance Guides (TMI Guides) in circulation worldwide. We provide our clients with the expertise needed to maximize the life of their power transformers.