- Convention center
- Conference center
- Coworking space
- Chemical industry
- Cleaning products supplier
- Civil engineering company
- Construction company
- Closed circuit television
- Car repair and maintenance
- Computer accessories store
- Cell phone store
- Cell phone charging station
- Computer hardware manufacturer
- Corporate gift supplier
- Cell phone accessory store
- Commercial printer
- Commercial refrigeration
- Computers
- Countertop store
- Commercial refrigerator supplier