About Us

Sigma Electronics, Inc. was established as a custom design and manufacturing company by Dan Japhet, John Brooks, and Arthur Epley after purchasing the transformer division of Datatex, Inc. in October, 1981. Datatex, renamed after originally being part of Geospace, started in the custom transformer business in 1965. After all of the years and changes, an abundance of knowledge of custom transformers was brought together to form Sigma. Sigma’s present facility was built in 1982 to house the newly established company. Sigma quickly gained a strong customer base and expanded on its presence in the highly specialized custom transformer field.

Sigma enjoys a reputation for quality and service, providing its customers with innovative solutions to challenging transformer problems. Designing to customer specifications, building to prints, and duplicating existing units are all part of the work provided by our engineering staff. Quality standards are rigorously enforced with standards, which are traceable to the United State Bureau of Standards.

Sigma’s engineering will be happy to work with your staff on new applications – from designing, engineering and manufacturing, through final testing – to ensure that you have the custom units needed to meet your exact requirements. We have computerized design programs, which optimize the time required to formulate a design proposal based on your specifications. We can also quote and build to your print, as well as duplicate an existing unit and rework any problems you may have.

“Custom” does not mean we produce only small quantities. Our modern manufacturing facilities are equipped for high volume as well as small-specialized jobs, all at premium quality. With well-trained people who care, and a management team with many years of experience in all facets of custom transformer work, Sigma provides economical answers to your transformer needs. We also have a Mexico based manufacturing facility. This added facility widens our capabilities while freeing up time in our main headquarters. We can build high volume production runs there, with all the quality and high standards our Houston facility has built our reputation on.

At Sigma, we are constantly changing and adapting to the times to give Sigma a wider range of capabilities and we appreciate any opportunity to review your unit requirements. We will give all inquiries the same attention and make every customer know their value to Sigma.