- Bertec Corporation
 - Columbus - Research and development of force plates for biomechanical applications. - Nexergy
- Columbus - Specialises in battery packs, battery chargers, cable assembly, and short-run printed circuit assembly for OEM customers.
- Progressive Audio
- Columbus - Home automation, high-end audio, and home theatre installation specialists.
- Sensotec Inc
- Columbus - Manufacturer of precision transducers, transmitters, digital gages, and instrumentation for measuring pressure, load, force, torque, displacement, and acceleration.
- Thompson Electronics Service Center
- Columbus - Servicing all brands of consumer electronic equipment.
- Worthington Products, LLC.
- Columbus - Fibreglass reinforced, chemically resistant motor covers; made to NEMA frame sizes.
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