| 2 Foxes Property Limited | Real estate | 2022 |
| 5C Enterprises Ltd | Other services | 2016 |
| 99 Rotherhithe Street Limited | Households | 2008 |
| Adrian Cook Architects Ltd | Professional & scientific | 2024 |
| Afon a Mynydd Risk Management Ltd | Professional & scientific | 2025 |
| Agnostic Resourcing Ltd | Information & communication | 2012 |
| Allsorts Nursery C.I.C. | Education | 2022 |
| Alun Flynn Psychology Limited | Education | 2024 |
| Aphrodite Aesthetics & Training Academy Ltd | Other services | 2020 |
| Ardle Energy Limited | Professional & scientific | 2017 |
| Ariege Ltd | Professional & scientific | 2015 |
| Arwain Consulting Ltd | Professional & scientific | 2023 |
| AS YOU SEE IT Media Limited | Information & communication | 2012 |
| Ashlar Property Management Ltd | Real estate | 2000 |
| ATM Services Limited | Financial services | 2003 |
| Autolaque Ltd | Wholesale & retail | 2025 |
| Bannau Studio Ltd | Hospitality | 2026 |
| Base Handling Products Ltd | Manufacturing | 2001 |
| Beacons Medical Ltd | Health & social care | 2019 |
| Beagleapps Limited | Information & communication | 2019 |
| Bear Sterling Limited | Financial services | 2015 |
| Bear Sterling Property Holdings 2 Limited | Real estate | 2025 |
| Bear Sterling Property Holdings Ltd | Real estate | 2024 |
| Bearsden Consulting Ltd | Health & social care | 2009 |
| Beast House Barn Holidays Ltd. | Hospitality | 2017 |
| Beaufort Consulting Ltd | Professional & scientific | 2016 |
| Beyond Quality Limited | Health & social care | 2007 |
| Black Mountains Cycle Centre Ltd | Arts & recreation | 2014 |
| Black Mountains Flight Training Ltd | Education | 2025 |
| Black Mountains Law Limited | Professional & scientific | 2019 |
| Black Mountains Property Ltd | Real estate | 2024 |
| Bluebell Events Limited | Hospitality | 2022 |
| Bluepoint Properties Limited | Construction | 1989 |
| Book-Ish Ltd | Wholesale & retail | 2022 |
| Border Woodlands Limited | Agriculture & fishing | 2011 |
| Braithwaite Industries Ltd | Professional & scientific | 2025 |
| Brecon Motor Club Ltd | Arts & recreation | 2024 |
| Britannian Enterprises Ltd | Hospitality | 2024 |
| Brookfields Financial Limited | Administrative & support | 2016 |
| Bryncoed Consulting Limited | Professional & scientific | 2014 |
| BSL Group Ltd | Professional & scientific | 2022 |
| Bubble Box Events Ltd | Hospitality | 2024 |
| Burble Ltd | Information & communication | 2022 |
| C C Garden Design and Construction Ltd | Administrative & support | 2012 |
| C T Butchers Ltd | Wholesale & retail | 2026 |
| CAB Parts Interiors Ltd | Wholesale & retail | 2018 |
| Carinthia Court RTM Company Limited | Households | 2003 |
| Catherine a. Williams Limited | Professional & scientific | 2003 |
| Cellar Drinks Company Ltd | Wholesale & retail | 1994 |
| Cellar Drinks Holdings Limited | Financial services | 2025 |
| Celtic Business & Payroll Services Limited | Administrative & support | 2009 |
| Charja Energy Limited | Energy | 2024 |
| Cheesepressuk Ltd | Hospitality | 2025 |
| Chef JAY Umagiliye Limited | Hospitality | 2023 |
| City Road Flat Management Company Limited | Households | 2010 |
| Cobbold Limited | Administrative & support | 2010 |
| Code Concise Limited | Information & communication | 2016 |
| Coed Y Brenin Education Ltd | Education | 2025 |
| Country Edit Limited | Wholesale & retail | 2020 |
| Crickhowell and District Community Partnership C.I.C. | Arts & recreation | 2013 |
| Crickhowell Business Services Ltd | Professional & scientific | 2009 |
| Crickhowell Joinery Limited | Manufacturing | 2017 |
| Crickhowell Optometrists Limited | Health & social care | 2023 |
| Crickhowell Paragliding Limited | Arts & recreation | 2017 |
| Crickhowell Resource and Information Centre | Administrative & support | 2003 |
| Crickhowell Rugby Limited | Arts & recreation | 2021 |
| Crindau Consulting Ltd | Professional & scientific | 2010 |
| Crossframes Limited | Construction | 2011 |
| Cwcw Limited | Wholesale & retail | 2015 |
| Cwmdu Campsite Ltd | Hospitality | 2014 |
| Cwmdu Construction LLP | | 2020 |
| Cwmdu Contrast Ltd | Other services | 2024 |
| Cwmdu Cottages Ltd | Real estate | 2020 |
| Cwningar Ltd | Real estate | 2022 |
| D & P Webb Limited | Professional & scientific | 2006 |
| Dacholm Limited | Professional & scientific | 2023 |
| Dardy Property Ltd | Real estate | 2023 |
| Datadini Ltd | Information & communication | 2012 |
| David T Williams Limited | Professional & scientific | 2007 |
| David Wade Limited | Administrative & support | 1973 |
| Davies Car Park Limited | Transport & logistics | 2024 |
| Day Sky Productions Limited | Information & communication | 2024 |
| Decisioning in Action Limited | Professional & scientific | 2013 |
| DEE Hardwicke Limited | Extraterritorial | 2012 |
| Deepminds Limited | Information & communication | 2014 |
| Dolomite Creative Ltd. | Professional & scientific | 2023 |
| Dragon Inn (Crickhowell) Limited | Hospitality | 2013 |
| Dragon Microgreens Ltd | Agriculture & fishing | 2019 |
| Dragon Trails Limited | Administrative & support | 2007 |
| Dragonthistle Developments Ltd | Construction | 2021 |
| DWR Y Ddraig CYF | Wholesale & retail | 2025 |
| Dyffryn Crawnon Green Energy Community Interest Company | Energy | 2009 |
| Eastern & Baltic Timber Limited | Agriculture & fishing | 2001 |
| Eclipse Productions Limited | Information & communication | 2018 |
| Ednerat CYF | Manufacturing | 2023 |
| ELEV8 Training Limited | Education | 2009 |
| Elizabeth Venmore Limited | Real estate | 2002 |
| Elta Smith Limited | Professional & scientific | 2020 |
| Eltec Limited | Construction | 2017 |
| Entelechy Consultants Limited | Professional & scientific | 2012 |