| 07.CRESCENT Limited | Professional & scientific | 2020 |
| 133A Coldharbour Lane Ltd | Real estate | 2011 |
| 1541 Limited | Education | 2015 |
| 23 Park Road Kenley Limited | Construction | 2018 |
| 32 Candler Mews Limited | Real estate | 2021 |
| 4 Gowlett Road RTM Company Limited | Households | 2025 |
| 54TH Avenue Ltd | Wholesale & retail | 2023 |
| 7PUZZLE Ltd | Education | 2004 |
| 9 High Street (Brecon) Residents Association Limited | Administrative & support | 2007 |
| 95 Kings Road Management Company Limited | Real estate | 2007 |
| A E Events Ltd | Arts & recreation | 2014 |
| A J Symonds Ltd | Professional & scientific | 2015 |
| A Jones General Building & Maintenance Limited | Construction | 2015 |
| A V Plant Limited | Construction | 2007 |
| A. H. Greaves Upholstery Limited | Manufacturing | 2002 |
| A.J's Crepes Limited | Hospitality | 2021 |
| A.W. Jones Construction Limited | Construction | 2003 |
| A2MG Enterprise Ltd | Information & communication | 2020 |
| ABB Investments Ltd | Real estate | 2023 |
| Abba Scrap Metals Limited | Wholesale & retail | 2006 |
| Abbeyken Limited | Professional & scientific | 2020 |
| Abcabcabc 123 Limited | Financial services | 2012 |
| Abercorn Legal Services Limited | Professional & scientific | 2014 |
| Abolish Ltd | Other services | 2020 |
| Accord Advisory Ltd | Professional & scientific | 2023 |
| Acoarc Ltd | Construction | 2022 |
| Adventure.I.Am Limited | Other services | 2023 |
| Aerial Recon and Recovery Initiative (Arri) Ltd | Professional & scientific | 2022 |
| AEROTECH2000 Limited | Manufacturing | 2025 |
| Aethox Therapeutics Ltd | Professional & scientific | 2025 |
| Afonydd Cymru Cyfyngedig | Administrative & support | 2008 |
| Airflo Fishing Products Limited | Manufacturing | 2019 |
| Alimeister Limited | Information & communication | 2011 |
| All-Pro Performance Ltd | Education | 2021 |
| Alltfechan Properties Limited | Real estate | 2022 |
| ALP Professional Support Limited | Public administration | 2016 |
| Alpaca My Boots Ltd | Arts & recreation | 2019 |
| Alpha Fasteners Limited | Manufacturing | 2022 |
| Alternative Glass Fibre Moulders Limited | Manufacturing | 2007 |
| Alun Richards Transport Ltd. | Transport & logistics | 2023 |
| Amcoal Limited | Mining & quarrying | 1996 |
| Amplitask Limited | Professional & scientific | 2025 |
| Anderson Consulting & Research Limited | Public administration | 2000 |
| Andrea Pole Animal Physical Therapy and Training Limited | Other services | 2022 |
| Andy Reid FX Ltd | Information & communication | 2023 |
| Anglezarke Dixon Associates Limited | Professional & scientific | 2010 |
| ANU OLU Investment Ltd | Real estate | 2022 |
| Apl(Uk) Ltd | Wholesale & retail | 2022 |
| Aplin Communications Limited | Professional & scientific | 2026 |
| Aqua Vision Consulting Limited | Professional & scientific | 2002 |
| Aquila Distribution Limited | Wholesale & retail | 2020 |
| Arctic 8 Limited | Wholesale & retail | 2026 |
| Ardent Galleries Limited | Wholesale & retail | 2009 |
| Aristarchus Limited | Information & communication | 2004 |
| Arnold Consultancy Services Ltd | Professional & scientific | 2018 |
| Art That Empowers Everyone Community Interest Company | Arts & recreation | 2026 |
| Asap Specialist Security UK Ltd | Professional & scientific | 2002 |
| Ashbrook Garage Limited | Wholesale & retail | 2006 |
| Asian Sourcing & Consultancy Limited | Wholesale & retail | 2018 |
| Atebglas Daioni Cyfyngedig | Real estate | 2011 |
| ATM Organics Limited | Wholesale & retail | 2006 |
| ATM Renovations & Lettings Limited | Real estate | 2009 |
| AW 2001 Limited | Real estate | 2004 |
| Awen Consulting Services Limited | Professional & scientific | 2020 |
| B & E Forage Company Limited | Agriculture & fishing | 2014 |
| B. Jenkins & Sons Limited | Administrative & support | 1991 |
| B10C | Arts & recreation | 1999 |
| BA 78 Ltd | Real estate | 2023 |
| Bant Limited | Information & communication | 2020 |
| Barbers in Brecon Ltd | Other services | 2023 |
| Barrelstone Spirits Ltd | Wholesale & retail | 2025 |
| Barry Tomlinson Architectural Services Limited | Professional & scientific | 2002 |
| Battle MX Limited | Arts & recreation | 2021 |
| Baxter and Roberts Development Ltd | Construction | 2022 |
| Bay Art Ltd | Wholesale & retail | 2014 |
| BCA Independent Advocacy Services | Other services | 2008 |
| Beacon Detection Ltd | Administrative & support | 2017 |
| Beacon Development Services Limited | Professional & scientific | 2015 |
| Beacon Foods Holdings Limited | Professional & scientific | 2021 |
| Beacon Foods Limited | Manufacturing | 1992 |
| Beacon Home Services Ltd | Construction | 2025 |
| Beacon Plant Limited | Construction | 2009 |
| Beacons Business Interiors Group Ltd | Financial services | 2017 |
| Beacons Business Interiors Limited | Construction | 1995 |
| Beacons Construction & Maintenance Ltd | Construction | 2005 |
| Beacons Crafts Ltd | Wholesale & retail | 1996 |
| Beacons Creative (Wales) Limited | Manufacturing | 2009 |
| Beacons Fencing & Construction Limited | Construction | 2003 |
| Beacons Glazing Ltd | Extraterritorial | 2012 |
| Beacons Holdings Ltd | Financial services | 2022 |
| Beacons Properties Limited | Construction | 2001 |
| Beacons Rural Energy Ltd | Energy | 2026 |
| Beacons Tree Services Ltd | Agriculture & fishing | 2022 |
| Beacons Water Group CIC | Professional & scientific | 2020 |
| BEN Rawlence Limited | Information & communication | 2014 |
| Bennet Williams Ltd | Information & communication | 2015 |
| Bespoke Accounting Services Limited | Professional & scientific | 2018 |
| Bespoke Tents & Events Ltd | Administrative & support | 2020 |
| BESSANT35 Ltd | Real estate | 2022 |
| Beth J Photography Ltd | Professional & scientific | 2024 |