- Appliance Controls of Texas
 - Rowlett - Manufactures solid state motor speed controls for the appliance and related industries, specialising in designing AC motor speed controls for custom applications. - Audio Electronics Dallas@
- Dallas
- Clairex Technologies
- Plano - 430nm to 950nm LEDs and IREDs, photoconductors, chips-photodiodes through ICs and more.
- Contemporary Research Corporation
- Dallas - Manufactures audio, video and remote control products such as routers/switchers, RF TV tuner/demodulators, TV controllers for Zenith, RCA and Philips smart TVs and TV control software.
- Continental Electronics Corporation
- Dallas - Manufacture and sell broadcast equipment world-wide.
- Crouse-Kimzey Company
- Grand Prairie - Distributors of professional audio and broadcast equipment lines.
- Express Programming Technologies
- Carrollton - Minority-owned business providing repair services for cable assemblies, PCB assemblies, programmable devices, and other electro-mechanical products.
- HOBI International, Inc
- Dallas - Electronics recycling and remarketing company.
- Interflux USA, Inc.
- Dallas
- Multicore Solders
- Richardson - Manufacturing of solders, chemicals and related products.
- THT Electronics Co., Inc.
- Dallas
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