| Airaacollections Ltd. | Wholesale & retail | 2026 |
| Amico Electrical Services Limited | Extraterritorial | 2000 |
| Applied Products (Wales) Limited | Construction | 2001 |
| ARK Fencing and Landscape Supplies Ltd | Wholesale & retail | 2006 |
| Comyn Ching & Co. (Solray) Limited | Manufacturing | 1976 |
| Comyn Ching (1723) Limited | Financial services | 1920 |
| Comyn Ching Limited | Financial services | 2005 |
| Coriander Leaf Ltd | Hospitality | 2024 |
| Devine Building & Property Services Limited | Construction | 2023 |
| Dolly Rocks Salons Ltd | Other services | 2025 |
| Dolly Rocks Tanning Studio Ltd | Other services | 2026 |
| Downhole Tool Warehouse Ltd | Wholesale & retail | 2014 |
| Everlast Construction Limited | Construction | 2002 |
| Fforest Timber Frames Limited | Construction | 2008 |
| HB Catering and Refrigeration Limited | Manufacturing | 2013 |
| Jeno Media Ltd | Information & communication | 2026 |
| JW & SW Holdings Limited | Financial services | 2021 |
| KC Prosupply UK Limited | Extraterritorial | 2015 |
| Kingsbridge Motor Group Ltd | Wholesale & retail | 2026 |
| M&M Design Consultancy Ltd | Construction | 2019 |
| Mark Williams Groundworks Limited | Construction | 2014 |
| Nivag Limited | Real estate | 2006 |
| Nova Costantini Trading Ltd | Financial services | 2025 |
| Phoenix Asbestos Recovery Limited | Other services | 2002 |
| Phoenix Enterprise Services Limited | Administrative & support | 1991 |
| Phoenix Environmental Services Limited | Administrative & support | 1990 |
| Securahome P.V.Cu. Limited | Construction | 1994 |
| Swansea Couriers Limited | Transport & logistics | 2002 |
| THE Absolute Sports Group Limited | Wholesale & retail | 2018 |
| THE Kings Club Limited | Arts & recreation | 2018 |
| Thirteen Seven Limited | Other services | 2010 |
| Ticketflow Ltd | Information & communication | 2026 |
| TP Admin (Swansea) Limited | Financial services | 2024 |
| V & C (SW) Commercials Limited | Construction | 2021 |
| VJM Properties Limited | Real estate | 2016 |
| Wagswood Ecoproject CIC | Agriculture & fishing | 2023 |