| 313 Electronics Ltd | Other services | 2023 |
| 4PROCONSTRUCTION Ltd | Construction | 2017 |
| 999 Windscreens Ltd | Wholesale & retail | 2024 |
| A & L Retail Ltd | Wholesale & retail | 2024 |
| A Force of One Limited | Administrative & support | 2014 |
| A&G Services SRL Ltd | Administrative & support | 2025 |
| A&R Pharma Ltd | Wholesale & retail | 2023 |
| A. Jones Plastering Contractors Ltd | Construction | 2024 |
| A1 Lettings & Sales Ltd | Real estate | 2013 |
| AA Holdings Bridgend Ltd | Financial services | 2024 |
| Aacousinsholdingsltd Ltd | Transport & logistics | 2025 |
| Absolute Manufacturing Ltd | Manufacturing | 2023 |
| AD Electrical Project Services Ltd | Professional & scientific | 2026 |
| Adfello Limited | Other services | 2025 |
| Aedis Developments Limited | Real estate | 2016 |
| AJ Pipework Ltd | Construction | 2024 |
| Ajax Property Ltd | Real estate | 2023 |
| AK Bowling Property Ltd | Real estate | 2016 |
| Alexeva Ltd | Administrative & support | 2023 |
| ALI Barbers S Ltd | Other services | 2025 |
| Allen Christopher Welding Limited | Manufacturing | 2008 |
| Allrock Limited | Extraterritorial | 2025 |
| Almark Estates Ltd | Construction | 2026 |
| Almark Properties Ltd | Real estate | 2026 |
| Alpha Pipelines Limited | Manufacturing | 2008 |
| Ameliamoo Ltd | Transport & logistics | 2025 |
| Ancoa Scaffolding Limited | Construction | 2017 |
| Anthony and Michelle Healan LLP | | 2007 |
| Anzen Group Ltd | Administrative & support | 2025 |
| Apex Gardening Services Ltd | Administrative & support | 2026 |
| Apexx Contractors Ltd | Construction | 2026 |
| AR Furniture Design Ltd | Construction | 2024 |
| Aron R Simon Transport Ltd | Transport & logistics | 2018 |
| Assay Innovation Limited | Professional & scientific | 2010 |
| Assisted Mobility Services Limited | Health & social care | 2018 |
| ATH (TY Gwyn) Limited | Construction | 2007 |
| ATH Holdings Limited | Professional & scientific | 2007 |
| ATH Investments Limited | Construction | 1992 |
| Atlantic PC Limited | Information & communication | 2014 |
| B&B Services (South Wales) Limited | Construction | 2014 |
| Beautified Limited | Administrative & support | 2016 |
| BGX Fitness Ltd | Arts & recreation | 2024 |
| BHJ Property Limited | Real estate | 2017 |
| Blaenllynfi Ltd | Hospitality | 2021 |
| Blue Horizon Technical Solutions Ltd | Professional & scientific | 2025 |
| Blue Parrot Maesteg LLP | | 2023 |
| BM Acoustic Installations Limited | Other services | 2018 |
| BNA Controls Limited | Professional & scientific | 2015 |
| BOB Emmitt SS Ltd | Professional & scientific | 2019 |
| Boutique Haus Ltd | Other services | 2024 |
| Bridgend Association of Voluntary Organisations (Bavo) | Other services | 2011 |
| Bridgend Massage Therapies Limited | Other services | 2025 |
| Bridges for Peace U.K. Ltd. | Other services | 1992 |
| Britmont Trading Limited | Wholesale & retail | 2025 |
| Budgies Electrical Ltd | Construction | 2026 |
| Bullish Competitions Ltd | Arts & recreation | 2025 |
| C and R Kitchen Installations Ltd | Construction | 2021 |
| Caerau Athletic Social Club Ltd | Hospitality | 2020 |
| Caerau Development Trust | Other services | 2009 |
| Caerau Market Garden Ltd. | Agriculture & fishing | 2024 |
| Caerau Pharma Limited | Wholesale & retail | 1995 |
| Calum-Roberts Ltd | Transport & logistics | 2025 |
| Campbell Irish Freight Ltd | Transport & logistics | 2025 |
| Capable Place Ltd | Professional & scientific | 2017 |
| Car Valeting Services Ltd | Administrative & support | 2021 |
| Casnew Foods Ltd | Hospitality | 2025 |
| CD Autos Limited | Wholesale & retail | 2021 |
| CDB Commercial Finance Limited | Financial services | 2016 |
| Cddcheck Ltd | Administrative & support | 2021 |
| CE Page Electrical Limited | Construction | 2019 |
| Chip and FRY Limited | Hospitality | 2007 |
| Chopper Engineering Limited | Professional & scientific | 2011 |
| Christine David Opticians Limited | Health & social care | 2008 |
| Cinid Construct Ltd | Construction | 2022 |
| Circle Digital Ltd | Professional & scientific | 2023 |
| Clock and Compass Ltd | Financial services | 2021 |
| Coal Mountain Developments Ltd | Construction | 2020 |
| Coast & Capital Lettings Ltd | Real estate | 2025 |
| Code Computers Limited | Information & communication | 2017 |
| Coegnant Hospitality Ltd | Wholesale & retail | 2026 |
| Commissioning Control and Inspection Limited | Mining & quarrying | 1989 |
| Community Hub Maesteg Ltd | Real estate | 2019 |
| Concise IT Solutions Limited | Information & communication | 2021 |
| Connect Scaffold UK Ltd | Construction | 2016 |
| Conway Homes (Wales) Limited | Construction | 2003 |
| Corntown Limited | Information & communication | 2014 |
| Cosihomes Limited | Other services | 2009 |
| Crafty MDF Limited | Manufacturing | 2023 |
| Crafty Print Ltd | Manufacturing | 2025 |
| Creation 21 Limited | Information & communication | 2001 |
| Creation Engineering Ltd | Professional & scientific | 2012 |
| Creative Collectables Limited | Manufacturing | 2022 |
| Crunchy Foods Ltd | Hospitality | 2025 |
| CT Morgan Ltd. | Professional & scientific | 2014 |
| CWMNI2 Cyfyngedig | Professional & scientific | 2016 |
| D J H Maintenance Limited | Construction | 2017 |
| D P Hurley Engineering Limited | Construction | 2019 |
| D T Contractor Services Ltd | Administrative & support | 2024 |
| D&N Hicks & Co Ltd | Agriculture & fishing | 2020 |
| D&Se Holdings Ltd | Real estate | 2024 |