| 45 Westbourne Management Company Limited | Households | 2003 |
| A.& S.Manuel Limited | Wholesale & retail | 1958 |
| ACH BIZ Management Limited | Real estate | 2024 |
| Atlantic Vista Management Company Limited | Other services | 1999 |
| Ccms (Wales) Limited | Administrative & support | 2007 |
| Celtic Dimensions Limited | Real estate | 2007 |
| Chris Barlow Building Limited | Construction | 2003 |
| Cranbourne Property Services Limited | Households | 2003 |
| CRD Engineering Holdings Limited | Financial services | 2026 |
| Deere (Investments) Limited | Real estate | 1959 |
| Esaias & SON (Kenfig Hill) Limited | Other services | 1961 |
| Forest Wood Developments Limited | | 1967 |
| G.B.Coffin Limited | Construction | 1958 |
| Mamba (Building Contractors) Limited | | 1989 |
| Nash Holdings (S.W.) Limited | | 1984 |
| Platinum Base Ltd | Manufacturing | 2004 |
| R.T.Clarke Limited | Wholesale & retail | 1955 |
| Screenfocus Limited | Professional & scientific | 1988 |
| Shamrock Taverns Limited | Hospitality | 1990 |
| Sherry Excavation (U.K.) Limited | | 1983 |
| South Wales Contractors Limited | Construction | 2007 |
| Stable Group Holdings Limited | Professional & scientific | 2022 |
| Superstar Mansel Limited | Hospitality | 2022 |
| T.N. Thomas Limited | | 1958 |
| W.J. Harris (Porthcawl) Limited | Wholesale & retail | 1961 |
| Weekes Bros. (Merthyr) Limited | Wholesale & retail | 1955 |