| A4 Testing Solutions Ltd | Information & communication | 2014 |
| Adglaze Ltd | Construction | 2023 |
| AHEAD4MED Limited | Professional & scientific | 2021 |
| Aj&D Limited | Financial services | 2011 |
| Amber and Black Rentals Limited | Real estate | 2025 |
| Ambitherma Ltd | Construction | 2023 |
| Anturus Limited | Professional & scientific | 2018 |
| Aquagas GAS Ltd | Construction | 2023 |
| Asha Counselling and Wellbeing Ltd. | Health & social care | 2025 |
| B&D Maintenance Ltd | Other services | 2023 |
| BEN J Worle Ltd | Arts & recreation | 2020 |
| C.A.H Contracting Solutions Ltd | Financial services | 2013 |
| Cardiff Music School Limited | Arts & recreation | 2014 |
| Castell Properties Ltd | Real estate | 2022 |
| Ceri Hughes Executive Services Ltd | Professional & scientific | 2024 |
| Clear Patterns Limited | Information & communication | 2022 |
| D&C Utilities Newport Limited | Administrative & support | 2012 |
| DCL Leisure Ltd | Wholesale & retail | 2014 |
| DGC Window Fitting Limited | Construction | 2023 |
| Eco DEC Developments Ltd | Construction | 2025 |
| Faith Filled Fruits Ltd | Wholesale & retail | 2015 |
| Fatmak Solutions Ltd | Professional & scientific | 2013 |
| Franklins Autos Ltd | Wholesale & retail | 2023 |
| FTC Wealth Management Ltd | Financial services | 2018 |
| Gatecrest Ltd | Real estate | 2026 |
| GJB Property Professionals Ltd | Real estate | 2019 |
| Glazing Revive Ltd | Construction | 2024 |
| GTR Building Ltd | Construction | 2022 |
| GTR Homes Limited | Real estate | 2025 |
| Hold Excalibur Ltd | Information & communication | 2023 |
| J M P T Limited | Arts & recreation | 2012 |
| JCG Consulting Limited | Financial services | 2013 |
| JM Fit Ltd | Arts & recreation | 2018 |
| JRP Contracting Ltd | Financial services | 2014 |
| JT Family Property Ltd | Real estate | 2024 |
| Kate Mciver Clinic Ltd | Other services | 2019 |
| Kate Mciver Holdings Ltd | Professional & scientific | 2019 |
| KIM Howell Consulting Limited | Professional & scientific | 2021 |
| LA Accounting Solutions Ltd | Professional & scientific | 2016 |
| LDE Systems Limited | Construction | 2017 |
| Maggs Property Holding Ltd | Real estate | 2024 |
| Magic Memorabilia Limited | Wholesale & retail | 2026 |
| Mgps Acuitas Ltd | Professional & scientific | 2020 |
| Morcore Ltd | Construction | 2025 |
| National Collision Investigation Services Ltd | Professional & scientific | 2024 |
| Optimal Compliance Systems Limited | Administrative & support | 2021 |
| Optimal Safety Group Ltd | Education | 2021 |
| Passae Limited | Education | 2012 |
| Pct-It Limited | Information & communication | 2025 |
| Play All-Year Round Ltd | Arts & recreation | 2022 |
| Price Computer Technology Limited | Information & communication | 1998 |
| R.S. Consultancies Ltd | Administrative & support | 2012 |
| Red State Holding Ltd | Real estate | 2023 |
| Science Storylab Ltd | Professional & scientific | 2024 |
| Secret Planet Ltd | Arts & recreation | 2022 |
| Sko-Direct Limited | Wholesale & retail | 2026 |
| South Wales Motorcycles Ltd | Wholesale & retail | 2024 |
| Space Events Ltd | Administrative & support | 2011 |
| Spells of Love Ltd | Wholesale & retail | 2021 |
| Ssarj Limited | Real estate | 2021 |
| Stanford Williams Limited | Professional & scientific | 2011 |
| THE Social Bull Limited | Arts & recreation | 2025 |
| Turnkey Property Services Ltd | Real estate | 2020 |
| Woodlands Design Stiwdio Ltd | Professional & scientific | 2025 |
| Woodlands Residential Ltd | Real estate | 2025 |