| Complementary Health Care Clinic | Alternative medicine practitioner | 34 Exchange St | Mon 09:00–17:30 |
| Construction Products Direct | Construction equipment supplier | Unit 11, Woodland Park Ind Est, Shortthorn Rd | Mon–Fri 07:30–17:00 |
| Cookes Band Instruments Ltd | Music shop | 34 St Benedicts St | Mon–Sat 09:00–17:00 |
| Copa Cubana | Cocktail bar | 3 Upper King St | Thu 17:00–23:00 |
| Cor Blimey | T-shirt shop | 1 Europa Way | Tue–Fri 10:00–16:00 |
| Core Medical Solutions Ltd | Medical group | Norwich NR10 5FB | Daily Open 24 hours |
| Cosmic Jo's Galactic Trading Outpost | Collectibles shop | 25 Bedford St | Thu 10:00–17:00 |
| Cottage Pine | Tienda de muebles | 16-18 Magdalen St | Mon–Sat 09:30–17:00 |
| Country Box Catering | Wedding planner | Unit 9, Gals Estate, Snetterton Business Park | Tue–Sat 09:00–17:00 |
| County Property Services (Norfolk) Ltd | Custom home builder | 2 Basey Rd | Mon–Fri 09:00–17:00 |
| Coutts | Private sector bank | Lakeside 300, Broadland Business Park, Old Chapel Way | Mon–Fri 08:00–17:00 |
| Crest Services | Handyman/Handywoman/Handyperson | 3 All Saints Way | Mon–Fri 09:00–17:00 |
| Crosskills PE Limited | Pharmaceutical products wholesaler | 29 Mission Rd | Mon–Fri 09:00–16:30 |
| Custance & Son Ltd | Central heating service | 4 Keelan Cl | Mon–Fri 08:00–17:00 |
| Cutane Clinic by Dalia UK: Plastic Surgery Norwich | Plastic surgery clinic | 11 The St | Mon–Fri 09:00–17:00 |
| Cutstone Ltd | Masonry contractor | Unit 1&2, Oakwood Ind Est | Fri 09:00–17:00 |
| Cycle Medic Norwich | Bicycle repair shop | 11 High Grn | Mon–Fri 09:00–14:00 |
| D.E.M Motors | Caravan repair shop | 21 Bidwell Rd | Mon–Fri 08:30–17:30 |
| D.Read Art and Clothing | Fashion designer | Unit 14, 60-62 Pitt St | Mon–Tue 09:00–17:00 |
| Danielle Mae Cosmetics | Skin care clinic | House Clarence, 6 Clarence Rd | Mon 10:00–15:00 |
| Dawn's New Horizon Charity 1196950 | Domestic abuse treatment centre | 12 Corbet Ave | Mon–Fri 09:00–16:00 |
| DD Health & Safety Supplies | Safety equipment supplier | 2 Kingsway | Mon–Fri 08:00–17:00 |
| Desi Flavourz | Indian takeaway | 27 The St | Tue–Sat 17:00–22:00 |
| Design Secure | Structural engineer | 63 Mansfield Ln | Mon 09:00–17:30 |
| Desira OMODA, JAECOO, Suzuki and Fiat, Abarth and Jeep Aftersales Norwich | Car dealer | 129 Heigham St | Mon–Fri 08:00–18:00 |
| DH Plumbing and Heating (Norfolk) | Plumber | Delamere, Holt Rd | Daily Open 24 hours |
| Direct Van Hire Ltd | Van rental agency | Unit 3, Cherrytree Rd | Mon–Fri 08:00–18:00 |
| Direct Vehicle Recovery | Towing service | Cherry Tree Rd | Fri Open 24 hours |
| Distinct Building Limited (Builders Norfolk) | Building firm | Unit 2, Longs Business Centre, Fakenham Rd | Mon–Fri 09:00–17:00 |
| Dizzy Dogs Daycare | Dog day care centre | Royal Norfolk Showground, Dunham Rd | Mon–Thu 07:00–19:00 |