- Farber Specialty Vehicles
 - Columbus - Designs and builds mobile vehicles including mammography, bookmobile, medical/dental, computer labs and more. - Geet
- Columbus - Makers of energy-conserving thermal paint and fuel processor systems.
- National Auto Care Corp.
- Columbus - Providers of vehicle service contracts. Extended warranties available for several types of automobiles.
- Ohio Vehicle Leasing Association (OVLA)
- Worthington - Automobile leasing assistance to consumers, as well as many services to members and dealerships in the car and light truck auto industry.
- Precision Pontiac
- Columbus - Offering classic Pontiac parts and Hurst collectibles, as well as restoration and sales of Firebird, Fiero, GTO, and more.
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