- Car rental
- Car repair
- Car wash and detail
- Caravans, rvs and motor homes
- Commercial fishing and hunting
- Children and baby clothing
- Clothing accessories
- Clothing stores
- Cable tv and satellite tv
- Charities
- Child care & daycare
- Churches
- Courts of law
- Computer programming, web design
- Computer repair
- Civil engineering
- Construction machinery
- Construction of buildings
- Construction of houses
- Computer training