| BUZZ Trampoline Park Swansea | Sports complex | Samlet Park Trading Estate, 4/5 Samlet Rd | Mon–Sat 09:00–20:00 |
| C F L Commercials Ltd | Diagnostic centre | Unit 3, Pontarddulais Workshops, Tyn Y Bonau Rd | Mon–Fri 08:00–17:00 |
| C&G AUTO REPAIRS EuroRepar Car Service | MOT centre | unit f1, SA1 Business Park, Langdon Rd | Thu 08:00–17:00 |
| Callatis | Bar & grill | 80 Glebe Rd | Tue 17:00–22:00 |
| Cambrian Boats Ltd | Marine broker | Trawler Rd | Sat 09:00–17:00 |
| Campbells Veterinary Centre | Veterinarian | 352 Llangyfelach Rd | Mon–Fri 08:30–18:00 |
| Cantellow Tree Surgery | Tree service | 18 Brynmill Cres | Daily 07:00–20:00 |
| Capel y Crwys | Church | Capel y Crwys, Chapel Rd | Sun 10:30–12:00 |
| Caravan Team Limited | Caravan repair shop | 6, Bell Court, Felin Fach | Mon–Fri 08:15–16:15 |
| Carr Jenkins & Hood | Accountant | Enterprise Park, Ty Caer Wyr, Charter Ct | Mon–Fri 09:00–17:00 |
| Cartridge World Swansea - (search INX DIRECT) | Printing equipment supplier | 2A Walter Rd | Mon–Fri 09:00–17:00 |
| Cash For Clothes | Recycling drop-off location | Unit 6, Players Industrial Estate | Mon–Tue 09:00–15:30 |
| Cash for Clothes Swansea Llansamlet | Clothes and fabric wholesaler | 132 Samlet Rd | Mon–Fri 12:00–18:00 |
| Cash@Maxx | Secondhand shop | 7 Union St | Thu 09:00–17:30 |
| Castell Group Ltd | Property developer | Unit 5 Dyffryn Cl | Mon–Fri 08:00–17:00 |
| Castle Hot Tubs | Hot tub shop | Swansea Enterprise Park, Unit 1, Penrice Court, Fendrod Business Park | Tue–Fri 09:00–17:00 |
| Cefn Coed Hospital | Mental health clinic | Cockett, Sketty, Swansea SA2 0GH | Daily Open 24 hours |
| Celtic Raw Feeds | Pet food and animal feeds | Unit 3, 908 Carmarthen Rd | Mon–Sat 10:00–17:00 |
| Celtic Vapours Llansamlet Swansea | Tobacco shop | Unit 7, Enterprise Park, Phoenix Way | Mon 08:00–18:00 |
| Champs Pool & Darts Sports Bar Gorseinon | Sports bar | 103 High St | Tue 17:00–22:00 |
| Cheers Wine Merchants | Wine shop | 132 W Cross Ln | Mon–Tue 09:00–19:00 |
| Child's Play At Ltd | Nursery school | W Cross Ave | Mon–Fri 08:00–18:00 |
| Chillwise Services Ltd | Air conditioning contractor | Units 1 & 1C, Players Industrial Estate | Mon–Fri 09:00–17:00 |
| Chiropractic Wales Uplands | Chiropractor | Fem Haus, 42 The Grove | Mon 09:00–18:30 |
| Chris Grey at Swansea Locksmiths | Locksmith | Unit 25i, Cwmdu Ind. Est | Daily Open 24 hours |
| Chris Grey Glazing and Boarding 24/7 | Glazier | Gendros, Swansea SA5 8JF | Daily Open 24 hours |
| City Moves | Removals service | Head Office, City House, Queensway | Daily Open 24 hours |
| Clase Community Cwtch | Community centre | 1 - 3 Beaconsview Rd | Mon–Fri 09:00–17:00 |
| Classy Kitchen | Sri lankan restaurant | 7 Fabian Way | Thu 13:00–23:00 |
| ClearEar (Swansea) | Health consultant | 23 Bay View Terrace | Daily 08:00–22:00 |