Top 7 Transformers Manufacturers in Texas 2026
Last updated
FirmsLedger lists 7 transformers manufacturers headquartered in Texas. The largest cluster is in Houston (3), and the other 4 are in 4 more cities. Houston listings include Powell Industries, Sigma Electronics and Houston Transformer Company.
By specialty, Texas has switchgear (23), solar panels (20), electrical wire & cable (12), circuit breakers (2) and control panels (2) listings.
| Company | City | Specialty | Phone | Website |
|---|---|---|---|---|
| General Transformer Corporation | Wylie | Custom design and engineering | (972) 442-1285 | generaltransformer.com |
| Powell Industries | Houston | Switchgear manufacturing | (713) 860-0404 | powellind.com |
| Sigma Electronics Inc | Houston | Custom transformer design and manufacturing | (281) 933-4700 | sigmaxfmr.com |
| Houston Transformer Company | Houston | Custom magnetic design | (713) 977-6009 | houstontransformer.com |
| VanTran Transformers | Waco | Custom engineering | (254) 772-9740 | vantran.com |
| Alamo Transformer Supply Company | San Antonio | Custom transformer design and manufacturing | (210) 661-8411 | alamotransformer.com |
| Texas Transformers and Equipment | Dallas | — | (806) 855-0086 | — |
Sigma Electronics Inc
Houston, Texas
Sigma Electronics has operated from Houston, Texas for over 45 years as a family-owned business specializing in custom wire-wound magnetics. The company is led by President and CEO Dan Japhet Jr., a Houston resident with a finance and oil-and-gas background who has held the role for 12 years after investing alongside a group of investors and board members.
VanTran Transformers
Waco, Texas51-200 employees
VanTran Transformers was founded in 1963 in Vandalia, Illinois, and relocated to Waco, Texas in 1974, where it remains headquartered and operates its manufacturing facility. The company is now part of the Forgent power infrastructure group, which combines VanTran with MGM Transformers, States Manufacturing, and PwrQ to deliver end-to-end power solutions.