| 5 | Caffe Nero | Farmers/growers | Cambridge City | CB2 3AX |
| 5 | Caffe Nero | Restaurant/Cafe/Canteen | Cambridge City | CB2 3PA |
| 5 | Cakespelliarmus | Other catering premises | South Cambridgeshire | CB23 |
| 5 | Caldecote Preschool | Hospitals/Childcare/Caring Premises | South Cambridgeshire | CB23 7NX |
| 5 | Caldecote Social Club | Pub/bar/nightclub | South Cambridgeshire | CB23 7NX |
| 4 | Cam Spice | Takeaway/sandwich shop | South Cambridgeshire | CB23 8EL |
| 5 | Cambourne Community Food Project | Retailers - other | South Cambridgeshire | CB23 6GW |
| 5 | Cambourne Cricket Club - The Third Man Pavilion | Restaurant/Cafe/Canteen | South Cambridgeshire | CB23 6FY |
| 5 | Cambourne Global Mart | Retailers - other | South Cambridgeshire | CB23 6HJ |
| 4 | Cambourne Grill at M J Rolls | Mobile caterer | South Cambridgeshire | CB23 2TU |
| 5 | Cambourne Pre-School | School/college/university | South Cambridgeshire | CB23 6DZ |
| 4 | Cambourne Town Football Club | Takeaway/sandwich shop | South Cambridgeshire | CB23 6FY |
| 5 | Cambridge Arts Theatre | Other catering premises | Cambridge City | CB2 3PJ |
| 5 | Cambridge Bar Hill Hotel | Hotel/bed & breakfast/guest house | South Cambridgeshire | CB23 8EU |
| 5 | Cambridge Belfry | Hotel/bed & breakfast/guest house | South Cambridgeshire | CB23 6BW |
| 5 | Cambridge Cheese Company | Retailers - other | Cambridge City | CB2 3LS |
| 4 | Cambridge Country Club | Restaurant/Cafe/Canteen | South Cambridgeshire | CB23 2TT |
| 5 | Cambridge Design Partnership | Restaurant/Cafe/Canteen | South Cambridgeshire | CB23 7FW |
| 4 | Cambridge Kids Club @ Bourn | Hospitals/Childcare/Caring Premises | South Cambridgeshire | CB23 2SP |
| 5 | Cambridge Kids Club @ Cambourne | Hospitals/Childcare/Caring Premises | South Cambridgeshire | CB23 6FR |
| 5 | Cambridge Kids Club @ Meridian | Hospitals/Childcare/Caring Premises | South Cambridgeshire | CB23 7DD |
| 5 | Cambridge Paella Company | Mobile caterer | South Cambridgeshire | CB23 |
| 5 | Cambridge Spices | Retailers - other | South Cambridgeshire | CB23 |
| 5 | Careclubs | Hospitals/Childcare/Caring Premises | South Cambridgeshire | CB23 7NX |
| 5 | Carluccio's | Restaurant/Cafe/Canteen | Cambridge City | CB2 3QF |
| Awaiting | Caterlink @ Bar Hill Primary | School/college/university | South Cambridgeshire | CB23 8DY |
| 5 | Caterlink @ Jeavons Wood Primary School | School/college/university | South Cambridgeshire | CB23 6DZ |
| Awaiting | Caxton Community Cafe | Restaurant/Cafe/Canteen | South Cambridgeshire | CB23 3PL |
| 1 | Ceylon Delights | Retailers - other | South Cambridgeshire | CB23 |
| 5 | Change Coffee Roasters | Manufacturers/packers | South Cambridgeshire | CB23 8AY |
| 5 | Charlie's Sweet Treats/Making Dreams Crafting Memories | Retailers - other | South Cambridgeshire | CB23 |
| 5 | Childrens Ark Day Nursery | Hospitals/Childcare/Caring Premises | South Cambridgeshire | CB23 3RD |
| 5 | Chopstix | Takeaway/sandwich shop | South Cambridgeshire | CB23 4WU |
| 5 | Christs College | School/college/university | Cambridge City | CB2 3BU |
| 5 | Churchill's Fish & Chips | Takeaway/sandwich shop | South Cambridgeshire | CB23 8DZ |
| 5 | Churchill’s Fish and Chips | Takeaway/sandwich shop | South Cambridgeshire | CB23 6JN |
| 5 | Chutney Joe | Restaurant/Cafe/Canteen | South Cambridgeshire | CB23 6JX |
| 5 | Claytons Butchers at childerley gate service station | Retailers - other | South Cambridgeshire | CB23 8AY |
| 4 | Co-Operative Retail Services Ltd | Retailers - other | South Cambridgeshire | CB23 3UY |
| 5 | Co-Operative Retail Services Ltd | Retailers - supermarkets/hypermarkets | South Cambridgeshire | CB23 6FJ |
| 5 | Co-Operative Retail Services Ltd | Retailers - supermarkets/hypermarkets | South Cambridgeshire | CB23 5DZ |
| Awaiting | Coffee & Cuddles | Other catering premises | South Cambridgeshire | CB23 |
| 5 | Comberton Baptist Church | Other catering premises | South Cambridgeshire | CB23 7DY |
| 5 | Comberton Co-op | Retailers - other | South Cambridgeshire | CB23 7DS |
| 4 | Comberton Grill | Mobile caterer | South Cambridgeshire | CB23 |
| 4 | Comberton Post Office T/A Costcutter | Retailers - other | South Cambridgeshire | CB23 7BP |
| 5 | Comberton Village College | School/college/university | South Cambridgeshire | CB23 7DU |
| 5 | Conkers Cafe | Restaurant/Cafe/Canteen | South Cambridgeshire | CB23 7BA |
| 4 | Cook4U | Takeaway/sandwich shop | South Cambridgeshire | CB23 3GY |
| 5 | Corn Exchange | Restaurant/Cafe/Canteen | Cambridge City | CB2 3QB |