- Arizona Instrument Corporation
 - Phoenix - Precision instruments used in quality control, industrial control and environmental monitoring applications. - Continental Industries
- Mesa - Solid state relays and power modules.
- Dalux Equipment America Ltd.
- Tempe - Wet process equipment for printed circuits, flex circuits, liquid crystal displays, and plasma displays.
- Datatronics, Inc.
- Romoland - Manufacturer of transformers, inductors, coils, chokes, and custom magnetics.
- DMG Engineering
- Scottsdale - Circuit board technical training courses.
- Durel Corporation
- Chandler - Manufacturer of electroluminescent lamps and matching IC based DC to AC inverters targeted for the automotive, watch and clock, and wireless communication markets.
- Jack Kriegel & Associates
- Gilbert
- M.G.I. Electronics, Inc.
- Tempe - Manufacture wafer handling and identification systems for the semiconductor industry.
- Meredith Instruments
- Glendale - Sells surplus lasers, tubes, collimating lenses, and light show equipment. Also repairs lasers.
- MTX Audio
- Phoenix - Manufacturers of home, car, and professional audio equipment.
- MWK Industries
- Corona - HeNe, argon, semiconductor, CO2 and other laser instruments.
- Norcimbus
- Phoenix - Manufacturer of UHP semiconductor equipment including electronic control systems and specialty process gas and chemical delivery equipment.
- PMR Systems
- Tempe - Ultrasonic SMT stencil cleaning systems and SMT and Semiconductor inspection systems.
- Southwest Microwave, Inc.
- Tempe - Broad based technology company involved in microwave security and communications systems.
- SouthWest Silicon, Inc.
- Phoenix - Supplier of Czochralski and float zone silicon for prime wafer applications.
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