| Accessories - Fashion | Second Time Around | 103 High Street | | 01446 742879 | | | | Nearly new ladies and children's clothing. |
| Accessories - Fashion | Jade Boutique | 2 Island Road | | 01446 730811 | | | | Boutique, ladies wear. |
| Accessories - Fashion | Elegance | 43 Holton Road | | 01446 721040 | | | | Ladies clothing. |
| Advertising Agencies | Barry Advertiser Ltd. | Watson Street | CF63 4EQ | 01446 735452 | | | | Printers and stationers. |
| Air Conditioning Services | Airpro Systems | 265 Holton Road | | 01446 729900 | | | | Designers, manufacturers & installers of ductwork and air movement systems. |
| Ambulance | Welsh Ambulance Service | Ambulance Division
Caerleon House
Mamhilad Park Estate
Pontypool | NP4 0XF | 01495 765400 | | | | Vale of Glamorgan Welsh Ambulance Service. |
| Antique Repair & Restoration | Peter Stauber & Son Upholsterers | 79 Main Street, Cadoxton | CF63 2HL | 01446 737480 | | | | Upholsterer of antique and modern furniture, suppliers of soft furnishings. |
| Architects | Fitz & Co. Architect & Building Engineer | The Backhouse, Island Road, 89b High Street | CF62 7AR | 01446 421325 | | | | Architect & building engineers. |
| Aromatherapy | Budget Beater | 36 Holton Road | | 01446 411791 | | | | Scented candles and oils, personal care and household products. |
| Art & Craft Eqpt & Materials | Woodlands | 11 Broad Street | | 01446 747378 | | | | Arts and craft shop. |