- Cafe Direct
- Canderel Green
- Cardiored
- Carmans
- Castus
- Cavalier
- Cawston Vale
- Celadrin
- Celestial
- Centrum
- Certo
- Che Mate
- Chefaro UK Ltd
- Cherrybrook Kitchen
- Chesswood
- Chia Bia
- Childrens
- Choc Chick
- Chocolate Banana
- Chocoreale
- Cinderella
- Clearspring
- Clif Bar
- Clipper Teas
- Cocofina
- Collagen
- Community Foods
- Comvita
- Condiments
- Confectionery
- Country Life
- Cranks
- Crazy Jack
- Creative Nature
- Crudigno
- Cyclopret
- Cytodyne