Vectors
- Computer Press
- Computer Horizons
- Competitive Technologies
- Commersant
- Columbia Tristar
- Coltec Industries
- Colonil
- CollaGenex
- Coats
- CNS
- Classic
- Cirrus Logic
- Cinergy
- Stratus
- Chronimed
- Chiquita
- Chevy Trucks
- Chevy Tracker
- Chevy Specialty Vehicles
- Chevy Metro
- Xtreme
- Chevrolet Team Monte Carlo
- Chevrolet Tahoe
- Chevrolet Suburban