| 5 | Carter Street Butchers | Retailers - other | East Cambridgeshire | CB7 5JU |
| 5 | Castle Lodge | Hotel/bed & breakfast/guest house | East Cambridgeshire | CB7 4PW |
| 5 | Caterlink @ Downham Feoffees Primary Academy | School/college/university | East Cambridgeshire | CB6 2ST |
| 5 | Caterlink @ Ely College | School/college/university | East Cambridgeshire | CB6 2SH |
| 5 | Caterlink @ Ely St Mary's Cof E Junior School | School/college/university | East Cambridgeshire | CB7 4RB |
| 5 | Caterlink @ Little Thetford CofE Primary School | School/college/university | East Cambridgeshire | CB6 3HD |
| 5 | Caterlink @ Swaffham Bulbeck Primary School | School/college/university | East Cambridgeshire | CB25 0LX |
| 4 | Caterlink @ The Harbour School | School/college/university | East Cambridgeshire | CB6 3RR |
| 4 | Caterlink @ The Lantern Community Primary School | School/college/university | East Cambridgeshire | CB6 2WL |
| 5 | Caterlink @Mepal And Witcham Primary School | School/college/university | East Cambridgeshire | CB6 2AL |
| 5 | Caterlink At Ditton Lodge Primary School | School/college/university | East Cambridgeshire | CB8 8BL |
| 5 | Caterlink@ St Andrew's C Of E Primary School | School/college/university | East Cambridgeshire | CB7 5AA |
| 5 | Caterlink@ Swaffham Prior Primary School | School/college/university | East Cambridgeshire | CB25 0LG |
| 5 | Caterplus At McCarthy & Stone - Roslyn Court | Other catering premises | East Cambridgeshire | CB7 4FA |
| 4 | Cathedral View Childcare - Central | Hospitals/Childcare/Caring Premises | East Cambridgeshire | CB7 4LS |
| 5 | Cathedral View Childcare - Littleport | Hospitals/Childcare/Caring Premises | East Cambridgeshire | CB6 1QG |
| 5 | Cathedral View Childcare Ltd | Hospitals/Childcare/Caring Premises | East Cambridgeshire | CB7 4GQ |
| 5 | Central England Co-operative | Retailers - supermarkets/hypermarkets | East Cambridgeshire | CB6 1JH |
| 5 | Central England Co-operative | Retailers - supermarkets/hypermarkets | East Cambridgeshire | CB6 2QD |
| 5 | Chang Chai Thai Kitchen | Restaurant/Cafe/Canteen | East Cambridgeshire | CB7 4LZ |
| 5 | Charley's Chippy | Takeaway/sandwich shop | East Cambridgeshire | CB25 0DU |
| 5 | Chartwells At Kennett Primary School | School/college/university | East Cambridgeshire | CB8 7WL |
| 5 | Chartwells At Soham Village College | School/college/university | East Cambridgeshire | CB7 5AA |
| 5 | Chartwells At The Shade Primary School | School/college/university | East Cambridgeshire | CB7 5DE |
| 5 | Chartwells At The Weatheralls Primary School | School/college/university | East Cambridgeshire | CB7 5BH |
| 5 | Cherry Hill Chocolates | Retailers - other | East Cambridgeshire | CB7 4AF |
| Exempt | Cheveley Royal British Legion Club | Pub/bar/nightclub | East Cambridgeshire | CB8 9DG |
| 2 | Cheveley Village Store And Post Office | Retailers - other | East Cambridgeshire | CB8 9RH |
| 5 | Chippenham Cricket Club | Other catering premises | East Cambridgeshire | CB7 5PT |
| 5 | Cineworld Cinemas Ely | Retailers - other | East Cambridgeshire | CB6 2FE |
| 5 | City Of Ely Bowls Club | Other catering premises | East Cambridgeshire | CB7 4PL |
| 5 | Clare's Kitchen | Restaurant/Cafe/Canteen | East Cambridgeshire | CB6 1EW |
| 5 | Clarence House Day Nursery Ely | Hospitals/Childcare/Caring Premises | East Cambridgeshire | CB7 4RJ |
| Exempt | Clarke Farms (Isleham) Ltd | Farmers/growers | East Cambridgeshire | CB7 |
| 5 | Classic Catering | Mobile caterer | East Cambridgeshire | CB6 |
| 3 | Classic Spice | Takeaway/sandwich shop | East Cambridgeshire | CB25 9DQ |
| 5 | Co-op | Retailers - other | East Cambridgeshire | CB7 4EY |
| 5 | Co-op Bottisham | Retailers - supermarkets/hypermarkets | East Cambridgeshire | CB25 9DA |
| Awaiting | Coffee And Crumb | Mobile caterer | East Cambridgeshire | CB7 5HL |
| Awaiting | CoffeeSpeed/Voodoo Coffee | Takeaway/sandwich shop | East Cambridgeshire | CB6 1XX |
| 5 | Cooking Together @ Home | Distributors/Transporters | East Cambridgeshire | CB25 0BB |
| 5 | CornerCopia Living | Restaurant/Cafe/Canteen | East Cambridgeshire | CB7 5HA |
| Awaiting | Costa Coffee | Other catering premises | East Cambridgeshire | CB7 4AS |
| 5 | Costa Coffee | Restaurant/Cafe/Canteen | East Cambridgeshire | CB6 2FE |
| 5 | Costa Coffee | Restaurant/Cafe/Canteen | East Cambridgeshire | CB7 4PB |
| 5 | Costa Coffee | Restaurant/Cafe/Canteen | East Cambridgeshire | CB7 4DJ |
| Awaiting | Cosy Cottage Produce | Other catering premises | East Cambridgeshire | CB8 |
| 5 | Coveney Village Hall Committee Soup, Supper & Special Event | Other catering premises | East Cambridgeshire | CB6 2DB |
| 2 | Craggy's Kitchen Ltd | Restaurant/Cafe/Canteen | East Cambridgeshire | CB6 1NE |
| Awaiting | Cream And Crumble | Other catering premises | East Cambridgeshire | CB6 |