| 13 Connaught Road Management Limited | Real estate | 2005 |
| A.J. Hodges Transport Limited | Transport & logistics | 2014 |
| Autoview (UK) Limited | Information & communication | 2001 |
| Baker's (Morriston) Limited | Professional & scientific | 1948 |
| Cambrian Construction Limited | Wholesale & retail | 2003 |
| Cross Engineering (Swansea) Limited | Manufacturing | 1984 |
| Digitrol Limited | Manufacturing | 1970 |
| Eaton Fencing Specialists Limited | Construction | 2011 |
| Fforestfach Decorating Services Limited | Construction | 2002 |
| Fluent Software Ltd | Information & communication | 2012 |
| Flybelow Limited | Wholesale & retail | 1998 |
| Flydale Limited | Construction | 1998 |
| Glanmor Park Flats Limited | Real estate | 1974 |
| H.S.Bassett & SON Limited | Manufacturing | 1964 |
| Hiraeth Holidays Ltd | Real estate | 2023 |
| Howells Roofing Limited | Extraterritorial | 2003 |
| J & a Construction (Llanelli) Limited | Manufacturing | 2003 |
| JFE Services Ltd | Professional & scientific | 2018 |
| K.B. Union Limited | Professional & scientific | 1992 |
| Knight & Brenchley Limited | Administrative & support | 2002 |
| Konnect Communications Ltd | Information & communication | 1998 |
| LEE Slade Haulage Limited | Transport & logistics | 2013 |
| Llansamlet Developments Limited | Real estate | 2023 |
| M & R Recycling Limited | Wholesale & retail | 2003 |
| Parkview Greyfriars Residents Limited | Households | 2002 |
| PHD Building Contractors Limited | Construction | 1999 |
| Phoenix Developments ( South Wales) Ltd | Administrative & support | 2017 |
| Purge and Weld Limited | Manufacturing | 2014 |
| R.F. Packer Builders Limited | Construction | 2002 |
| S.P. Davies Limited | Professional & scientific | 2004 |
| Slate Hotels Limited | Hospitality | 2007 |
| SPJ Property Investments Limited | Real estate | 2014 |
| Swansea Jacks Limited | Professional & scientific | 2002 |
| THE Original Time 2 Talk Limited | Wholesale & retail | 2002 |
| THE Travelling Christmas Tree Company Limited | Manufacturing | 2008 |
| Unionburger Limited | Hospitality | 1984 |
| Utilities Store Limited | Professional & scientific | 2013 |
| Welding Technology Wales Limited | Manufacturing | 2005 |