- AContact.com
 - Houston - Specialises in rental of heavy power distribution equipment such as transformers, transfer switches, circuit breakers, and generator accessories. - DBSTV.com
- Houston - Group of satellite dealers that will provide answers to questions and provide the latest product information.
- East West International
- Houston - Offers electronics, appliances, and transformers for international and overseas use.
- HSI - Houston Scientific International Inc.
- Houston - Position transducers, tensiometers, tension links, force washers, and velocity transducers.
- Innova Electronics, Inc.
- Houston - Contract manufacturer specialising in the building of extreme environment electronics, hazardous area computers, and sunlight-viewable LCD monitors
- Sigma Electronics
- Houston - Designers and manufacturers of custom crafted transformers, toroids, coils, inductors, reactors, inverters, converters, and chokes.
- Toshiba International Corporation
- Houston - Manufacturer of industrial motors, motor controls, uninterruptible power systems, adjustable speed drives, programmable logic controllers, instrumentation, and switchgear.
- Trilogy Systems Corporation
- Webster - Manufacturer of linear motors and positioners.
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