| AL Valley Homes Ltd | Real estate | 2026 |
| Anhinr Limited | Wholesale & retail | 2026 |
| Bagga Foods Limited | Wholesale & retail | 2021 |
| Beav IT Solutions Limited | Information & communication | 2016 |
| Brannan Homes Ltd | Real estate | 2026 |
| Brannan Properties Ltd | Real estate | 2026 |
| Bright Horizon Properties Limited | Real estate | 2025 |
| C & J Property Rentals Limited | Real estate | 2005 |
| C P Allen Landscapes & Hire Ltd | Administrative & support | 2025 |
| Canopus Star Ltd | Hospitality | 2025 |
| Centurion Networks Ltd | Information & communication | 2025 |
| Cherry Blossoms Day Care Ltd | Health & social care | 2022 |
| Chris Hynam Plumbing and Heating Ltd | Construction | 2025 |
| Crestsmiths Limited | Wholesale & retail | 2025 |
| D & D Window Solutions Limited | Manufacturing | 2026 |
| D.T.D. Damp Proofer Limited | Construction | 1985 |
| Dragon Fire Door Services Ltd | Construction | 2026 |
| EPX Holdings Ltd | Financial services | 2023 |
| Focused on Community Limited | Hospitality | 2025 |
| Fourframe Studios Limited | Professional & scientific | 2026 |
| G-Tech Environmental Ltd | Professional & scientific | 2019 |
| H&S Stores Limited | Wholesale & retail | 2024 |
| Hayers ABC CIC | Arts & recreation | 2025 |
| Heat Install Direct Limited | Construction | 2026 |
| HHA Productions CYF | Information & communication | 2018 |
| Hoplite Enterprises Limited | Information & communication | 2004 |
| It’S Better Ltd | Hospitality | 2022 |
| J D Wills Ltd | Transport & logistics | 2025 |
| J E D Crushing & Screening Limited | Mining & quarrying | 2008 |
| JLB Roofing Ltd | Construction | 2023 |
| K Reed Consult Ltd | Construction | 2024 |
| K2O Sports Ltd | Wholesale & retail | 2024 |
| Kami Property Management Ltd | Real estate | 2024 |
| Kayson Marc Properties Limited | Real estate | 2025 |
| KIN YEW Chong Ltd | Hospitality | 2026 |
| Lacre Pipelines Ltd | Water & waste | 2016 |
| Lowah Music Productions Ltd | Arts & recreation | 2026 |
| LT Groundworks and Civil Engineering Ltd | Construction | 2026 |
| M & J Plant & Transport Limited | Administrative & support | 2000 |
| Magics Solutions Ltd | Professional & scientific | 2025 |
| Merthyr Borough Recycling Centre Holdings Ltd | Real estate | 2024 |
| MTM Electrical Control Services Ltd | Manufacturing | 2020 |
| Multiforce Maintenance Limited | Construction | 2010 |
| N & L Thomas Building Services Limited | Construction | 2016 |
| Navraj Property Investments Ltd | Real estate | 2022 |
| NCB Roofing Division Ltd | Construction | 2020 |
| New Thriving Ltd | Hospitality | 2021 |
| New Tredegar RFC Limited | Arts & recreation | 2024 |
| Nomadic Trucking Limited | Transport & logistics | 2023 |
| NTR Property Services Ltd | Real estate | 2025 |
| Onemeteor Ltd | Health & social care | 2024 |
| Packham Engineering Services Limited | Manufacturing | 2004 |
| Palmer Property Group Limited | Real estate | 2018 |
| Parm Food Ltd | Wholesale & retail | 2022 |
| Phil Pritchard Carpentry & Joinery Limited | Construction | 2018 |
| R Morris I.P.V Ltd | Construction | 2016 |
| Rhymney Convenience Store Limited | Wholesale & retail | 2024 |
| S & S Martin Property Limited | Real estate | 2008 |
| Shane's Taxis Ltd | Transport & logistics | 2025 |
| SMS Audio Ltd | Arts & recreation | 2011 |
| SOS Security & FM Group Ltd | Administrative & support | 2019 |
| Stockwood Carpentry Ltd | Manufacturing | 2024 |
| Strike Scaffold Ltd | Construction | 2024 |
| SW Construction Training Ltd | Construction | 2021 |
| Task-M Driver Solutions Limited | Construction | 2015 |
| Think Pixel Ltd | Information & communication | 2019 |
| Tyred of Tyres Limited | Wholesale & retail | 2009 |
| Valley Windows (SW) Limited | Construction | 2021 |
| White Rose Information and Resource Centre Ltd | Administrative & support | 2006 |