| 123 Print Limited | Administrative & support | 2006 |
| Access Scaffolding Contracts Limited | Construction | 2006 |
| Afan Carpets Limited | Wholesale & retail | 2003 |
| AIG Stevenson Limited | Wholesale & retail | 2025 |
| Alexandra Forge Limited | Manufacturing | 1980 |
| B. D. Welding Limited | Construction | 2002 |
| Bouchon DE Rossi Limited | Hospitality | 2007 |
| Building Plastics Limited | Extraterritorial | 1990 |
| CA Jones & SON Limited | Construction | 2006 |
| Camboon Limited | | 1978 |
| Charlie Williams (Wholesale Florists) Limited | Wholesale & retail | 1997 |
| Chroma Domestic Cleaning Services Ltd | Administrative & support | 2006 |
| Cornelius Electronics Limited | Manufacturing | 1983 |
| Darmatt Properties Limited | Real estate | 2002 |
| David Lewis Limited | Wholesale & retail | 1997 |
| Derwen Plant Company Limited | Professional & scientific | 2017 |
| Detec Security Installations Ltd | Manufacturing | 2003 |
| Dewis Limited | Hospitality | 1997 |
| E.G. Lewis Developments Limited | Real estate | 2004 |
| ENA Court Management Limited | Households | 1990 |
| Euroaction Limited | | 1989 |
| Fine Seema Fashions (Stockport) Limited | Wholesale & retail | 1975 |
| First Step Flooring Limited | Construction | 2006 |
| Florabloom Limited | Wholesale & retail | 2026 |
| Glenhall Developments Limited | Construction | 2004 |
| Glyn Neath Welding Ltd | Manufacturing | 2004 |
| Gordon Trenberth (Neath) | Health & social care | 1956 |
| Gorvett Estates Limited | Arts & recreation | 1976 |
| Grace Mortgages Limited | Professional & scientific | 1919 |
| Gwyn Jones and SON Limited | Transport & logistics | 1956 |
| H.M. Price (Agricultural Engineers) Limited | Manufacturing | 1985 |
| Heatlogs Limited | Professional & scientific | 2002 |
| Hooke Sound & Light Limited | Administrative & support | 2005 |
| IAN Howarth Painting Contractors Limited | Construction | 2005 |
| Incutz Limited | Other services | 2002 |
| Independent Cleaning Services (South Wales) Limited | Arts & recreation | 1979 |
| Inter City Finance Limited | Financial services | 1973 |
| J.J. Lewis Gnoll Monumental Masons Ltd | Manufacturing | 2003 |
| JAS Lounge Ltd | Hospitality | 2021 |
| Jefferies Stores Limited | Wholesale & retail | 2003 |
| John M. King Limited | Wholesale & retail | 1963 |
| Juleann Limited | Health & social care | 2015 |
| Kelvin FRY Limited | Wholesale & retail | 2025 |
| Killay News Limited | Wholesale & retail | 2006 |
| Lake 2000 Limited | Agriculture & fishing | 2000 |
| LEO Optical Limited | Manufacturing | 2003 |
| Liquid Assets (Europe) Limited | Hospitality | 2003 |
| Lizler Ltd | Health & social care | 2016 |
| M & K Fast Food Ltd | Hospitality | 2021 |
| Martian MOO Apps Ltd | Information & communication | 2007 |
| Medway Trading Ltd. | Real estate | 1999 |
| MNS Mining Limited | Mining & quarrying | 2009 |
| Morgan Hemp & Co. Limited | Professional & scientific | 2000 |
| MP Computers (Port Talbot) Limited | Other services | 2004 |
| MSG Labour & Plant Limited | Construction | 2005 |
| Nadina Developments Limited | Real estate | 2003 |
| Neath Properties Abroad (2000) Limited | Real estate | 2000 |
| Neath Specsavers Limited | Wholesale & retail | 1992 |
| Oldfast Limited | Wholesale & retail | 1997 |
| Opinion Research Services Limited | Professional & scientific | 1994 |
| Parc Court (Bridgend) Property Company Limited | Real estate | 1974 |
| Pembrokeshire Trout & Salmon Limited | Mining & quarrying | 1984 |
| Penylan Investment Company Limited | Real estate | 1959 |
| Planguard Garage Services Limited | Wholesale & retail | 2000 |
| Plantpiece Limited | Professional & scientific | 2002 |
| Port Talbot Labour & Plant Limited | Construction | 1995 |
| Project Building & Joinery Services Limited | Wholesale & retail | 1999 |
| R.S.C. Spares Limited | Wholesale & retail | 1999 |
| RHB Drain Services Limited | Construction | 2003 |
| S & E Engineering (Elec) Limited | Construction | 2003 |
| Santo Enterprises Limited | Professional & scientific | 2006 |
| Saunders Wear Ltd | Wholesale & retail | 2026 |
| Seer Computing Limited | Information & communication | 2000 |
| Slugs.Biz Limited | Manufacturing | 2002 |
| Smart 2025 Ltd | Wholesale & retail | 2025 |
| Spraytech Coatings Limited | Wholesale & retail | 2000 |
| Suha Exim Limited | Wholesale & retail | 2024 |
| Surfing Holidays Online Ltd | Administrative & support | 2007 |
| Swansea Council for Voluntary Service | Health & social care | 1997 |
| T.M. Electronics Ltd | Other services | 2000 |
| Talbot Carpets Limited | Wholesale & retail | 2005 |
| Tercat Limited | Professional & scientific | 1999 |
| THE Big Chopper Hair Co. Limited | Other services | 2002 |
| THE British Rototherm Company Limited | Manufacturing | 1990 |
| THE South Wales Sack & BAG Co. Limited | Wholesale & retail | 1964 |
| THE Wild Swan Limited | Hospitality | 2000 |
| Thermal Engineering (Wales) Ltd | Manufacturing | 1999 |
| Vaper Store Limited | Wholesale & retail | 2003 |
| Victor Buyck Steel Construction UK Ltd | Financial services | 2024 |
| Vsge Properties Limited | Real estate | 2007 |
| W.J.Jones(Zoar Agricultural Stores)Limited | Wholesale & retail | 1960 |
| Welsh Engineering Services Limited | | 1970 |
| White Swan Developments Limited | Construction | 2002 |
| Wistaston Brook Properties | | 2007 |
| Wood & Elkins Limited | Wholesale & retail | 1965 |
| Zana Limited | Hospitality | 2006 |