| 3 Eagles Restaurant Ltd | Hospitality | 2026 |
| 35RS Llangollen Limited | Hospitality | 2018 |
| 39 Lyndhurst Road Limited | Households | 2022 |
| 8 Ltd | Extraterritorial | 2020 |
| A Fletcher Plumbing and Heating Ltd | Construction | 2025 |
| A N Richards Limited | Wholesale & retail | 2008 |
| A P Quad Bikes Limited | Transport & logistics | 2005 |
| A Partnership Limited | Professional & scientific | 2020 |
| A&S Williamson Properties Ltd | Real estate | 2023 |
| Abbey Plant Hire Ltd | Administrative & support | 2022 |
| Acuity LAB Ltd | Professional & scientific | 2017 |
| AES Business Solutions Ltd | Administrative & support | 2019 |
| AGN Invest Limited | Information & communication | 2024 |
| Aircall Communications Limited | Information & communication | 2018 |
| Airtight Build Limited | Construction | 2017 |
| AJB Instrumentation Ltd | Professional & scientific | 2017 |
| Alam and Brothers Limited | Hospitality | 2019 |
| Alan Dodd (Plumbing Contractors) Limited | Construction | 2003 |
| Allonus Limited | Education | 2009 |
| Apis Sepinetis CYF | Manufacturing | 2025 |
| Apuks Estate Agents Limited | Real estate | 2022 |
| Arctic Technologies Ltd | Wholesale & retail | 2023 |
| Argoed Hall Management Ltd | Households | 2011 |
| Arinniti Ltd | Administrative & support | 2017 |
| Ashbrooke Services Ltd | Health & social care | 2024 |
| Atomic Supplements Ltd | Wholesale & retail | 2023 |
| Atramentous Press Ltd | Information & communication | 2022 |
| Atticus Business Support Ltd | Administrative & support | 2024 |
| Atticus Consultancy Ltd | Administrative & support | 2017 |
| AW Renewables and Heating Ltd | Construction | 2023 |
| Baobab Works Ltd | Administrative & support | 2025 |
| Baris Aydin Ltd | Hospitality | 2025 |
| BBW Ltd | Professional & scientific | 2015 |
| Bearded MEN Adventures Ltd | Arts & recreation | 2018 |
| Beartrax Ltd. | Wholesale & retail | 1997 |
| Beauwood Estates Limited | Other services | 2024 |
| Beauwood Holdings Ltd | Health & social care | 2017 |
| Beleva ACQ 02 Limited | Professional & scientific | 2021 |
| Beleva ACQ 03 Limited | Professional & scientific | 2021 |
| Bensons Hotel Limited | Hospitality | 2005 |
| Berwyn Practice Track Limited | Arts & recreation | 2016 |
| Bionerg Limited | Professional & scientific | 2014 |
| Birchmere Homes Limited | Extraterritorial | 2002 |
| Bluebay Laundry Limited | Other services | 2023 |
| BMA Leisure Ltd | Hospitality | 2024 |
| Bolter Design LLP | | 2015 |
| Bongos' Electrical Ltd | Manufacturing | 2021 |
| Brazier Property Services (BPS) Ltd | Construction | 2021 |
| Brewery PUB 1 Ltd | Hospitality | 2018 |
| Bright Sparks Firework Displays Ltd | Professional & scientific | 2011 |
| Brighter-Futures-Cymru Ltd | Health & social care | 2019 |
| Brunobyrneproperties Limited | Real estate | 2025 |
| Bryn Dethol (Llangollen) Management Limited | Households | 2006 |
| Bryntysilio Outdoor Education Centre CIC | Hospitality | 2019 |
| Brys Gofal Ltd | Real estate | 2023 |
| Burrtech Ltd | Professional & scientific | 2022 |
| Byniri Ltd | Financial services | 2022 |
| CAE MOR Agri Limited | Agriculture & fishing | 2021 |
| CAN Property 1 Ltd | Real estate | 2026 |
| Canolfan Ceiriog Centre CYF | Arts & recreation | 2003 |
| Carters Event Services CYF | Extraterritorial | 2022 |
| Castle Burger Ltd | Hospitality | 2018 |
| Castle Courtyard Investments Limited | Real estate | 1945 |
| Ceiriog Carpentry and Construction Limited | Construction | 2023 |
| Cellnet Ltd | Information & communication | 2022 |
| Chandlebarn Limited | Construction | 1976 |
| Chapel Street Coffee Company Ltd | Manufacturing | 2020 |
| Charcoal Grill 2 Ltd | Hospitality | 2025 |
| Childs Chamberlain Ltd | Professional & scientific | 2022 |
| Chill Your Beans Coffee Company Limited | Manufacturing | 2026 |
| Chopsticks Express Limited | Hospitality | 2012 |
| Christian Tyroll Arboricultural Consultancy Ltd | Professional & scientific | 2026 |
| CLA Containers Limited | Administrative & support | 1997 |
| Claire Driffield Consultancy Ltd | Professional & scientific | 2026 |
| Clarkes Recovery Ltd | Wholesale & retail | 2014 |
| Cleanomics Limited | Professional & scientific | 2026 |
| Cooper Barrington LLP | | 2010 |
| Courtyard Cottage Llangollen Ltd | Administrative & support | 1983 |
| Crofts Home Improvements Ltd | Construction | 2020 |
| Cyflymen Hydro Ltd | Energy | 2010 |
| D Birch Electrical Ltd | Construction | 2013 |
| Dale Roberts Properties Limited | Real estate | 2018 |
| Dalesford House Residents Company Limited | Households | 2001 |
| Davies Brothers Construction Limited | Construction | 2007 |
| Davies Brothers Homes Limited | Administrative & support | 2017 |
| Davies Brothers Management Company Ltd | Households | 2023 |
| Deborah Kenton Limited | Arts & recreation | 2022 |
| DEE Fish and Chips Ltd | Hospitality | 2026 |
| DEE Foods Ltd | Hospitality | 2022 |
| DEE Trust | Professional & scientific | 2008 |
| DEE Valley Associates Ltd | Administrative & support | 2020 |
| DEE Valley Locksmiths Ltd | Construction | 2025 |
| DEE Valley Martial Arts, Fitness and Performance Ltd | Arts & recreation | 2024 |
| DEE Valley Solar Ltd | Construction | 2025 |
| DEE Valley Vets Limited | Professional & scientific | 2011 |
| Deltic Systems Limited | Real estate | 1995 |
| Delyth Liddington Ltd | Households | 2026 |
| Denbighshire Epicures Limited | Hospitality | 2022 |
| Deren Vera Ltd | Real estate | 2026 |
| Design and Concept Development Limited | Manufacturing | 1996 |