| Tri Star Executive Travel | Chauffeur service | 5 Brachdy Ln | Daily Open 24 hours |
| Tŷ Llandaff Care Home | Aged care | Tŷ Llandaff, Conway Rd | Daily Open 24 hours |
| Ty'r Winch pub, restaurant and guest house | Gastropub | Tyr Winch Rd | Mon–Thu 12:00–23:00 |
| Vale of Glamorgan Eats | Delivery service | 21 Barberry Rise | Daily Open 24 hours |
| Valley Veterinary Hospital | Emergency veterinarian service | Gwaelod Y Garth Industrial Estate, Cardiff Rd | Sat–Sun Open 24 hours |
| Vape Superstore Cardiff | Tobacco shop | Next To Bedworld, Unit 2 Leckwith Rd | Mon–Sat 07:00–20:00 |
| Vegetarian Food Studio | Vegetarian restaurant | 115-117 Penarth Rd | Sun 12:00–20:00 |
| Vindico Arena | Ice skating rink | Viola Arena, Olympian Dr | Daily 06:00–00:00 |
| Viva Brazil Cardiff | Brazilian restaurant | St Mary St | Mon–Thu 12:00–21:30 |
| Vodafone | Mobile phone shop | 50, St Davids | Mon–Sat 09:00–19:00 |
| Volcano Express | Japanese restaurant | 23 Salisbury Rd | Tue–Fri 11:30–14:00, 17:00–21:30 |
| Volvo Cars Cardiff | Volvo dealer | Wagtail Close, Cardiff Gate Business Park | Mon–Fri 08:00–18:00 |
| Wales Psychiatry Centre | Best Psychiatrists in Wales | Psychiatric hospital | Dartington Dr | Daily 10:00–18:00 |
| Wally's Delicatessen | Deli | 38-42 Royal Arcade | Mon–Sat 08:30–17:30 |
| Waterloo Tea | Tea room | 5 Waterloo Gardens | Mon–Fri 08:30–17:00 |
| WBS Builders' Merchants | Building materials supplier | The Yard, College Rd | Mon–Fri 07:30–16:30 |
| WE TOW UK | Towing service | Unit 13A, 13a Ipswich Rd | Daily Open 24 hours |
| Wood'N'Blocks of Cardiff | Wood floor refinishing service | 121 Greenway Rd | Daily 09:00–20:00 |
| Y Mochyn Du | Pub | Sophia Cl | Mon–Thu 11:00–23:00 |
| Zia Boutique | Boutique | Unit 7a, Mermaid Quay, Unit 10a | Mon–Thu 11:00–18:00 |
| Accessorize | Fashion accessories shop | 39, St Davids Way | Mon–Sat 09:30–19:00 |
| Afrikana Restaurant Cardiff | Halal restaurant | 199 - 203 City Rd | Mon–Fri 17:00–23:00 |
| American Golf - Cardiff | Golf shop | 501 Cowbridge Rd W | Mon–Sat 09:00–18:00 |
| Ann Summers Cardiff | Lingerie shop | 51 Queen St | Mon–Sat 10:00–18:00 |
| Apple Cardiff | Electronics retail and repair shop | St David's Dewi Sant, 63-66 Grand Arcade | Mon–Thu 09:30–20:00 |
| B&M Home Store with Garden Centre | Discount shop | Ashbourn Way | Mon–Sat 08:00–22:00 |
| B&Q Cardiff Culverhouse | Home improvement shop | Culverhouse Cross, 499 Cowbridge Rd W | Mon–Sat 07:00–20:00 |
| B&Q Cardiff Gate | Home improvement shop | Cardiff Gate Retail Park, 7 Dering Rd | Mon–Sat 07:00–20:00 |
| Bargain Booze Inside Food Warehouse | Off licence | bay, Cardiff Bay Retail Park, Part unit GandH | Mon–Sat 08:00–21:00 |
| BBC Cymru Wales | Television station | 3 Central Square | Sun 10:30–16:30 |