| CineStore | Shop | Unit 5, 126 Cornwall St S | Mon–Fri 09:00–17:00 |
| Citation Weddings & Events | Wedding venue | 40 Wilson St | Daily 09:00–00:00 |
| City of Glasgow College | College | 190 Cathedral St | Mon 08:00–18:30 |
| City Signs & Print | Sign shop | 91 King St | Mon–Fri 09:00–17:00 |
| CKL Clothing - Print & Embroidery, Workwear, PPE, School Uniforms, Teamwear, Branded Promotional Merchandise | Work clothes shop | 53 Wallace St | Mon–Fri 09:15–17:30 |
| Clan Skates | Skateboard shop | 45 Hyndland St | Mon–Fri 11:00–17:00 |
| Clansman Interiors Ltd | Interior fitting contractor | 333 Drakemire Dr | Mon–Thu 08:00–17:00 |
| Clarkson Commercial Van Sales Glasgow | Used truck dealer | 1-21 Swinton Cres | Thu 08:00–17:30 |
| Clements | Chartered accountant | 39 St Vincent Pl | Mon–Fri 09:00–17:00 |
| Clinical24 Staffing Ltd - Scotland | Nursing agency | Suite 112, Baltic Chambers, 115 Wellington St | Daily Open 24 hours |
| Cloud Nine Cake Centre | Cake decorating equipment shop | Park Industrial Estate, 133 Summerlee St | Mon–Tue 09:00–17:00 |
| Clyde Audiology | Hearing aid shop | 16 Robertson St | Mon–Fri 09:00–17:00 |
| Clyde Odd Jobs | Gardener | 90 Busby Rd | Mon–Thu 07:00–20:00 |
| Clyde Paper & Print | Paper distributor | 71 Craigton Rd | Mon–Tue 07:30–17:00 |
| collin moran and son Ltd | Removals company | Unit 1, Hillington Business Centre, 15-17 Nasmyth Rd S | Mon–Fri 08:00–18:00 |
| Complete Hair & Beauty Ltd | Hairdresser | 433 Tantallon Rd | Tue 09:30–15:30 |
| Contact | Internet marketing service | 22 Montrose St | Mon–Fri 09:00–17:30 |
| Container Hire Services Ltd | Container supplier | East Yard, 130 Blochairn Rd | Mon–Thu 08:00–17:00 |
| Core Asbestos Services | Asbestos testing service | Savoy Tower, 77 Renfrew St | Mon–Fri 08:00–22:00 |
| Cotterell & Co | Lighting shop | 28-30 Carnoustie Pl | Mon–Fri 09:30–17:30 |
| Counselling & Coaching Solutions | Marriage counsellor | 151 W George St | Mon–Fri 09:00–18:00 |
| Country Baskets | Wholesale florist | 297 Blochairn Rd, Blochairn Pl | Mon–Fri 08:00–17:30 |
| Countrywide Scotland Estate Agents Baillieston | Estate agent | 1 Barrachnie Rd | Mon–Fri 09:00–17:30 |
| Countrywide Scotland Sales and Letting Agents West End | Estate agent | 107-109 Byres Rd | Mon–Fri 09:00–17:30 |
| Crabshakk Finnieston | Fish and seafood restaurant | 1114 Argyle St | Mon 12:00–22:00 |
| Craig Campbell SEO | Internet marketing service | Unit 1, 43 Hepburn Rd | Thu Open 24 hours |
| Creative Computing | Computer shop | 1429 Pollokshaws Rd | Thu 09:30–17:30 |
| Criminal Lawyers Glasgow | Criminal defence lawyer | 272 Bath St | Mon–Sat 09:00–18:00 |
| Crookston Community Group | Foodbank | 48 & 56 Beltrees Rd | Mon–Fri 10:00–15:00 |
| CrossFit Astraea | Gym | Nuneaton industrial estate Unit 10, Block 3, Dalmarnock Rd | Mon 06:00–08:00, 10:00–13:00, 16:30–19:30 |