| 24 Security Limited | Information & communication | 2007 |
| Aero ZIP Limited | Wholesale & retail | 1987 |
| Aint Just Whistling Ltd | Information & communication | 2020 |
| Allied Real Limited | Real estate | 1988 |
| Applied Torque Engineering Ltd | Professional & scientific | 2010 |
| ASK the Grips Ltd | Information & communication | 2024 |
| Atlantic Optical (U.K.) Ltd. | Wholesale & retail | 1985 |
| Bay Leisure Limited | Arts & recreation | 2007 |
| Becker Solutions Limited | Construction | 2018 |
| Bronant Limited | Professional & scientific | 2004 |
| Brynmara Holdings Limited | Extraterritorial | 2020 |
| C & P Harris Properties Limited | Real estate | 2022 |
| Canol Beer Ltd | Wholesale & retail | 2025 |
| Cardiff Engineering & Fabrications Ltd | Manufacturing | 2002 |
| Cardiff Granite Limited | Manufacturing | 2010 |
| Cardiff Marble & Granite Company Limited | Manufacturing | 2014 |
| Castleton Accountancy Limited | Professional & scientific | 1994 |
| Croles Amusements Limited | Arts & recreation | 2002 |
| Davies Brothers (Holdings) Limited | Construction | 2009 |
| Drojan Commercial Window Cleaning Limited | Administrative & support | 2019 |
| Duceau Properties Limited | Real estate | 2024 |
| Echa Microbiology Limited | Manufacturing | 1988 |
| Elslani Limited | Financial services | 2023 |
| Espex Batteries Limited | Wholesale & retail | 2003 |
| Excelerate Technology Ltd | Information & communication | 2001 |
| F.& M.Harris Property Company Limited | Construction | 1963 |
| Gillies Henning & Associates Limited | Professional & scientific | 1990 |
| Grange Psychological Services Limited | Administrative & support | 2012 |
| GSH Architects Limited | Professional & scientific | 2013 |
| Gwent Anglers Limited | Professional & scientific | 1922 |
| Hayvenhursts Wales Limited | Professional & scientific | 1994 |
| Iris Care Group Limited | Financial services | 2020 |
| Jeffrey Enterprise Ltd | Real estate | 2024 |
| K. Shaw and Sons Limited | Hospitality | 1971 |
| Kaiffu Limited | Other services | 2022 |
| Kenitico Limited | Professional & scientific | 2007 |
| Laura's Grocers Limited | Wholesale & retail | 2014 |
| Leighs Properties Limited | Households | 2022 |
| Lupin Blanc Wedding Catering Ltd | Hospitality | 2020 |
| Marcat Investments Limited | Financial services | 2022 |
| Mindaro Limited | Information & communication | 2014 |
| MJL (Wales) Ltd | Real estate | 2011 |
| Nauti Limited | Hospitality | 2016 |
| Nigel Roberts Properties Limited | Real estate | 2015 |
| Notanya Limited | Administrative & support | 2013 |
| NRE Project Management Tenby Limited | Households | 2004 |
| Nspire Consultants Limited | Professional & scientific | 2008 |
| Otley Limited | Real estate | 1989 |
| Penreka Limited | Professional & scientific | 2006 |
| PJH and SJH Properties Limited | Real estate | 2020 |
| Puravidauk Limited | Information & communication | 2019 |
| Quality Diecast Toys Limited | Wholesale & retail | 2012 |
| R & S Project Management Porthcawl Limited | Households | 2004 |
| R & S Project Management Tenby Limited | Households | 2004 |
| Richcar Investments Limited | Real estate | 1944 |
| Rumney Concrete Company Limited (the) | | 1973 |
| Ryland Plumbing & Heating Ltd | Construction | 2023 |
| Seel Auctions Ltd | Construction | 2016 |
| Simply Leisure Ltd | Arts & recreation | 2016 |
| Somer Health Ltd | Wholesale & retail | 2019 |
| Specialist Facade Holdings Limited | Extraterritorial | 2020 |
| SRL Capital Investments Limited | Financial services | 2022 |
| Summit Leisure (Deansgate) Limited | Arts & recreation | 1991 |
| Summit Leisure (Swinton) Limited | Arts & recreation | 1991 |
| T Teify Davies Limited | Other services | 2002 |
| Thurston Enterprises Limited | Arts & recreation | 1985 |
| Wide Ltd | Manufacturing | 2023 |
| Willbow Manufacturing Company Limited(The) | Manufacturing | 1945 |
| Zipporah Ltd | Information & communication | 2003 |