| Cherry Hinton Village Leisure Centre | Leisure centre | Colville Rd | Mon–Wed 09:00–21:30 |
| Cherry House | Chinese takeaway | 53 High St | Mon 17:00–21:30 |
| Christ's College Cambridge | College | St Andrew's St | Daily 09:00–12:00 |
| (christmastrees4u.co.uk) | Christmas-tree farm | Lyndhurst Nursery, Station Rd | Mon–Sat 09:00–17:30 |
| Churchill's Fish & Chips, Cambourne | Fish and chips takeaway | Unit 3, Caxton House, Broad St | Mon 12:00–22:00 |
| Cipriani Plumbing and Services Ltd | Bathroom renovator | 1, Future Business Centre, Kings Hedges Road Allia | Mon–Fri 07:30–17:00 |
| City Cycle Hire | Bicycle hire shop | 61 Newnham Rd | Mon–Fri 09:00–17:30 |
| Clarence House Day Nursery Cambridge | Day care center | The Old Church Hall, Green End Rd | Mon–Fri 07:30–17:30 |
| Clearglass (Cambridge) Ltd | Glazier | Unit M, Broad Lane, Industrial Estate, Broad Ln | Mon 07:30–16:30 |
| ClearPlex UK | Car accessories shop | 16, Norman Way | Mon–Fri 09:00–18:00 |
| Cliffs Carpets | Flooring contractor | Future Business Centre, Allia, Kings Hedges Rd | Mon–Sat 09:00–17:00 |
| Clip 'n Climb Cambridge | Rock climbing | Unit 34, Clifton Road Industrial Estate, Clifton Rd | Sun 09:00–18:00 |
| Clough Hall | Banquet hall | Sidgwick Ave | Daily Open 24 hours |
| CN Bio | Biotechnology company | 332 Cambridge Science Park Rd, Milton Rd | Mon–Fri 08:00–17:30 |
| Coffee World | Coffee roastery | Coffee World, 135 Cambridge Rd | Daily 08:00–17:00 |
| Coleridge Community College | Community college | Radegund Rd | Mon–Fri 08:00–18:00 |
| Colin Knight Hair | Hairdresser | 96a High St | Tue–Sat 09:00–18:00 |
| Comberton Playgroup | Playgroup | Green End | Mon 08:00–17:00 |
| Comberton Sports and Arts | Leisure centre | West St | Wed 07:00–21:45 |
| Complete Fabrication - 3D Printing Prototyping Specialist | 3D printing service | Unit 4b, LION WORKS, Station Rd E | Mon–Fri 08:30–17:30 |
| Compton & Parkinson Ltd | Central heating service | The Temple, Offices 2&3, Temple End | Mon–Fri 09:00–17:00 |
| Conserve Paintings | Art restoration service | Rose Cottage, 81 High St | Fri 09:30–17:00 |
| Contempo Designs Ltd | Office furniture shop | Regus Business Centre 1010 Business Park | Mon–Fri 09:00–18:00 |
| Contract Flooring Services Ltd | Flooring contractor | 4 Viking Way | Daily 10:00–15:00 |
| Cook & Cook Surveyors | Surveyor | 2 Water Ln | Mon–Tue 08:00–17:00 |
| Cottenham Court Care Home - Bupa | Assisted living residence | High St | Wed Open 24 hours |
| Creative Grounds Café – Crafts, Coffee & Workshops in Willingham | Art cafe | 36 Church St | Mon–Fri 09:00–14:30 |
| Criterion Audio | Home audio shop | Criterion House, Oakington Rd | Mon–Fri 10:00–17:30 |
| Crofton Interiors Ltd | Interior fitting contractor | Mill House, Mill Ct | Mon–Fri 08:00–17:00 |
| CrossFit FearNaught | Fitness centre | Unit 1A, Atria Court | Mon–Fri 06:00–19:30 |