Houston Transformer Company is regarded as THE Extreme Environment Magnetic manufacturer throughout the oil and gas industry as well as other critical service industries where extreme temperatures/high vibration are everyday occurrences. With 50 years in custom designing and manufacturing the highest reliability magnetics, our knowledge base in this specialty field cannot be matched. If your tool must be able to withstand temperatures of 250C or more and you have a project where losing time with a tool down cost you hundreds of thousands of dollars or even millions per day, Houston Transformer is the company essential to fill your requirements.


  • Units able to operate at +250C
  • High vibration resistant designs
  • Long term quality and reliability experts
  • Many configurations available

Product Types:

  • High Temp Magnetics for Logging While Drilling (LWD) and Measuring While Drilling (MWD)
  • Down-hole Chokes for Electronic Submersible Pump (ESP) Monitoring
  • Down-hole Case and Collar Locator Coils
  • Solenoid Coils for Subsea Valves
  • Telemetry transformers for Wireless Seismic Systems
  • Common Mode Chokes
  • and many other extreme environment or down-hole magnetics (transformers, Inductors, chokes, reactors, coils, etc.)