Sigma Electronics, Inc. is a custom design transformer and wirewound magnetic component manufacturing company based in Houston, Texas. Sigma is dedicated to providing high quality custom transformers, inductors, chokes, coils and related wirewound magnetic components for original equipment manufacturers, with an emphasis on high pressure/high temperature 260°C applications. Our experience and expertise makes us a leader in the design and manufacturing of extreme environment transformer and wirewound magnetic components required in Oilfield Services downhole applications. Sigma’s success is a result of experience, quality, and service that has been provided to our customers for more than 45 years.

Sigma Electronics, Inc. management is dedicated to providing superior quality custom products and services with reasonable lead times. The experienced engineering staff at Sigma provides design and manufacturing for customers requiring custom solutions for specific applications. With over 10,000 designs on file and the most innovative computerized design tools, the design and manufacturing engineers have the experience and resources to meet any design or manufacturing challenge. We are dedicated to working with customers on new or existing applications from custom design and prototype to the finished product. At Sigma, we utilize the latest technology for testing and the dedication of our quality control team assures that every product meets customer specifications. Product integrity and reliability is the cornerstone of Sigma’s quality control program. Sigma is ISO 9001:2008 certified and committed to providing our services under these standards. Production facilities consist of a 35,000 sq. ft. design and manufacturing plant located in Houston, Texas and a wholly owned manufacturing facility located in Mexico. Additionally, Sigma has developed manufacturing partnerships in Asia to accommodate higher volume production.