| 20 Church Walks Freehold Company Ltd | Real estate | 2021 |
| 3D Management (CK) Ltd | Hospitality | 2011 |
| 3D Management Ltd | Hospitality | 2015 |
| 3D Management Properties Ltd | Real estate | 2020 |
| 52 Mostyn Avenue Limited | Real estate | 2023 |
| A C Electrical (North Wales) Ltd | Construction | 2016 |
| A C Lambert & SON Ltd | Other services | 2011 |
| A&J Duncalf Investments Ltd | Wholesale & retail | 2019 |
| A.S.K. Development (N. Wales) Limited | Real estate | 2003 |
| A1 Patrick Kiely Roofing Limited | Construction | 2022 |
| Aberconwy Domestic Abuse Service | Administrative & support | 1999 |
| AC Property (North Wales) Ltd | Real estate | 2024 |
| Acsca One Limited | Extraterritorial | 2012 |
| Acsca Option Limited | Extraterritorial | 2012 |
| Aegis Renewable Services Ltd | Professional & scientific | 2019 |
| Afro KID Limited | Arts & recreation | 2022 |
| Ahead of the Cloud Limited | Professional & scientific | 2021 |
| Ahir 1 Ltd | Hospitality | 2021 |
| Aick Ltd | Wholesale & retail | 2026 |
| AJR Technical Solutions Ltd | Construction | 2024 |
| ALEKS26 Limited | Other services | 2016 |
| Ambito Limited | Administrative & support | 2016 |
| Anglesey Holiday Accommodation Limited | Hospitality | 2010 |
| Anson House Management Company Limited | Real estate | 2017 |
| Anvis Limited | Construction | 2003 |
| Aofl Ltd | Professional & scientific | 2017 |
| APD Civil Enforcement Services Limited | Financial services | 2020 |
| Artspace Cymru Projects CIC | Arts & recreation | 2026 |
| AS Scaffolding Services (North West) Ltd | Construction | 2024 |
| Asiret Ltd | Hospitality | 2020 |
| Aughton Engineering Services Limited | Manufacturing | 2017 |
| Aughton Property Ltd | Real estate | 2023 |
| Autopark Limited | Wholesale & retail | 2015 |
| Average MAN Limited | Wholesale & retail | 2019 |
| BD Land Promotions Limited | Real estate | 2020 |
| Bearbeck Limited | Real estate | 2021 |
| Beau Bridge Development Limited | Construction | 2019 |
| Beech Developments (Chwilog) Ltd | Construction | 2023 |
| Beech Developments (NW) Limited | Construction | 1995 |
| Beech Homes (North Wales) Limited | Construction | 2020 |
| Belyn Financial Services Limited | Financial services | 2011 |
| Biocycle Innovations Ltd | Manufacturing | 2019 |
| Blue Duck (NW) Ltd | Real estate | 2021 |
| Blue Turtle Events Limited | Administrative & support | 2026 |
| Blue Turtle Property Limited | Real estate | 2024 |
| Blue Turtle Sports Limited | Arts & recreation | 2026 |
| Border Properties Ltd | Real estate | 2020 |
| Brgr & Shakes Junction Ltd | Hospitality | 2025 |
| Brgr & Shakes LJ Ltd | Hospitality | 2026 |
| Bryn Limited | Health & social care | 2011 |
| Bryn Yorkin Estate Limited | Real estate | 2018 |
| BSL Interpreting Services Ltd | Other services | 2011 |
| BTM Homes Ltd | Real estate | 2024 |
| C.V.A.D Ltd | Information & communication | 2019 |
| Calculated Tuition Ltd | Education | 2023 |
| Calgary Construction Ltd | Construction | 2021 |
| CALTRA55 Limited | Manufacturing | 2019 |
| Cambrian Rally Ltd | Arts & recreation | 2021 |
| Cambridge Eurgology Limited | Professional & scientific | 2015 |
| Cambridge Land and Property Limited | Real estate | 2020 |
| Cariad Wind Consulting Ltd. | Energy | 2022 |
| Caring Hands Homecare Agency Ltd | Health & social care | 2014 |
| Carusos (NW) Ltd | Hospitality | 2022 |
| Castle Construction North Wales Ltd | Construction | 2023 |
| Chris Lewis Mechanical Services Limited | Wholesale & retail | 2013 |
| Christian DE Havilland Sprinklers Ltd | Construction | 2019 |
| Clean With ALI Limited | Administrative & support | 2022 |
| Clynnog Properties Limited | Real estate | 1995 |
| Cmmco Holdings Limited | Professional & scientific | 2014 |
| Coast & Country Cleaning Ltd | Other services | 2023 |
| Coast and Country Leisure Group Limited | Wholesale & retail | 2020 |
| Coast and Country Resorts Limited | Hospitality | 2020 |
| Coast and Country UK Holdings Ltd | Hospitality | 2026 |
| Coastal Bars NW Ltd | Hospitality | 2025 |
| Coastal Escapes (NW) Ltd | Real estate | 2024 |
| Coastal Escapes Properties Limited | Real estate | 2025 |
| Coastal Getaways (NW) Ltd | Real estate | 2026 |
| Collections Cloud Ltd | Information & communication | 2025 |
| Collinge Antiques Limited | Wholesale & retail | 2012 |
| Colwyn Bay Football Club Limited | Arts & recreation | 1996 |
| Colwyn Business Centre Ltd | Real estate | 2025 |
| Company Vehicle Solutions Ltd | Administrative & support | 2002 |
| Compare Cash House Buyers Ltd | Administrative & support | 2026 |
| Competency Matters Limited | Administrative & support | 2016 |
| Conscientia Infra-Conscientia START30 Programmes Ltd | Health & social care | 2022 |
| Conscious Counselling Ltd | Health & social care | 2024 |
| Conwy Brickwork Ltd | Construction | 2020 |
| Conwy Drive Clean Ltd | Administrative & support | 2017 |
| Conwy Fishing Ltd | Arts & recreation | 2018 |
| Conwy Panel and Paint Ltd | Wholesale & retail | 2018 |
| Coop Corp Limited | Hospitality | 2016 |
| Creative Climate Projects Limited | Professional & scientific | 2024 |
| Crest Co-Operative Ltd. | Water & waste | 1998 |
| Custom Bilt Ltd | Wholesale & retail | 2023 |
| CUT & Shave Conway Ltd | Other services | 2025 |
| D & J Jarvis Limited | Construction | 2014 |
| D.K.Kitchen Supplies Ltd | Construction | 2016 |
| Dalhaus Limited | Manufacturing | 2010 |
| Dane Bates Apparel Ltd | Wholesale & retail | 2020 |
| Dane Bates Masterclasses Ltd | Education | 2020 |