| Loyn & Co. Architects Limited | Professional & scientific | 2005 |
| M & C Harrison Ltd | Wholesale & retail | 2019 |
| M S G Business Systems Limited | Information & communication | 1986 |
| Maggie Jo's Ltd | Hospitality | 2020 |
| Making a Volt Limited | Information & communication | 2005 |
| Marcos Pizza Bar Ltd | Hospitality | 2022 |
| Marl Road Ltd | Households | 2023 |
| Mazi People Ltd | Professional & scientific | 2024 |
| MC Surfaces Ltd | Professional & scientific | 2012 |
| MCH Building & Roofing Limited | Construction | 2004 |
| MGH Strategic Planning Ltd | Professional & scientific | 2019 |
| Nautilus Pendine Ltd | Hospitality | 2022 |
| Nezoc Ltd | Professional & scientific | 2018 |
| Nikos Resources Ltd | Other services | 2004 |
| North YEO Ltd | Real estate | 2018 |
| Northstar (Biometrics & Payments) Consulting Ltd | Professional & scientific | 2017 |
| Old Mill Environmental Recycling Limited | Water & waste | 2006 |
| Oncree Ltd | Professional & scientific | 2017 |
| Oriana Publications Limited | Information & communication | 1998 |
| Pear Tree Farm Estates Limited | Real estate | 2002 |
| Philip Rose Estates Ltd | Real estate | 2023 |
| Philippa Thody Limited | Health & social care | 2016 |
| Pinefield IT LLP | | 2007 |
| Q-Sher Consultancy Limited | Professional & scientific | 2021 |
| R. Gibson Property Management Ltd | Real estate | 2019 |
| Reams (GB) Ltd | Real estate | 2007 |
| Retro-Republic Ltd | Wholesale & retail | 2021 |
| Rhino Medical Communications Ltd | Education | 2017 |
| Richie Builders Ltd | Construction | 1997 |
| RMD Technical Services Ltd | Professional & scientific | 2008 |
| Royal Hotel (Barry) Limited | Hospitality | 2005 |
| S.R. Davis Limited | Manufacturing | 2001 |
| Sailex Limited | Administrative & support | 2006 |
| Sheppard Cost and Risk Consultancy Limited | Construction | 2007 |
| Slimx Limited | Health & social care | 2013 |
| Soltys Brewster Consulting Limited | Professional & scientific | 2007 |
| South Wales Accessible Lets Ltd | Real estate | 2019 |
| ST Aubin Nurseries Limited | Health & social care | 2004 |
| ST Augustines Property Management Ltd | Real estate | 2005 |
| Stanmore Rehab Limited | Health & social care | 2016 |
| Strong Aviation Limited | Financial services | 2025 |
| Sullivanstrickler Ltd | Information & communication | 2018 |
| Surginovi Limited | Health & social care | 2015 |
| Sylva Property Management Ltd | Real estate | 2023 |
| T.J. Williams Limited | Administrative & support | 1998 |
| Taylor Barrett Ltd | Other services | 2023 |
| THE Edge (Systems) Limited | Manufacturing | 1990 |
| THE Glenbrook Inn Limited | Hospitality | 2005 |
| THE Leadership Centre Limited | Administrative & support | 2002 |
| THE SIX Bells Inn Ltd. | Hospitality | 2025 |
| Therapyworks Franchising Limited | Health & social care | 2006 |
| TL Computer Systems (Wales) Ltd | Information & communication | 2002 |
| Tradeinc Ltd | Professional & scientific | 2006 |
| Tradelink Marketing Limited | Extraterritorial | 1997 |
| Upton Services (Micrographics) Limited | Manufacturing | 2003 |
| Vale Garage Services Limited | Wholesale & retail | 2003 |
| Vale Holdings SW Limited | Construction | 2023 |
| Vale Phoenix Limited | Health & social care | 2002 |
| Valeplus (Cymru) & Valeplus Extra | Education | 2002 |
| Vaughan Transport Systems Limited | Transport & logistics | 1960 |
| VIA the Vibe Ltd | Extraterritorial | 2007 |
| Webbers Kitchen Ltd | Hospitality | 2023 |
| Weston Land Management Limited | Real estate | 1993 |
| Westside Engineering Services Limited | Manufacturing | 1987 |
| Whill Construction Ltd | Construction | 2017 |
| Wholepark Property Management Company Limited | Households | 1992 |
| Woodland Building & Electrical Services Barry Limited | Construction | 2018 |
| Woodland Property Barry Limited | Real estate | 2020 |
| Wright Building and Plastics Limited | Construction | 2007 |
| Xtec Holdings Ltd | Real estate | 2020 |
| Ying Yang Limited | Wholesale & retail | 2002 |
| Zandvoort Instrumentation Ltd | Professional & scientific | 2018 |
| Zero Weakness UK Ltd | Education | 2022 |
| Zoom-Eze Ltd | Wholesale & retail | 2020 |
| Zuzuland Ltd | Wholesale & retail | 2026 |