| 20 Ancaster Square Management Ltd | Real estate | 2025 |
| 3MEGOS Limited | Administrative & support | 2018 |
| 67 Liverpool Road Ltd | Real estate | 2025 |
| A Wainwright GAS & Heating Services Ltd | Construction | 2019 |
| Abbey Stone Masonry Ltd | Construction | 2023 |
| Aberconwy Developments Limited | Water & waste | 1993 |
| ADR Ltd | Wholesale & retail | 2026 |
| AJ & Sons Property Holdings Ltd | Real estate | 2025 |
| AL Jones Building Ltd | Construction | 2024 |
| Alex Webster Media Ltd | Professional & scientific | 2022 |
| Alfredos Conwy Limited | Hospitality | 2004 |
| Altitude Media Group (AMG) Ltd | Professional & scientific | 2024 |
| Angel Fields Ltd | Hospitality | 2022 |
| Anglesey HOG Roasts Ltd | Hospitality | 2025 |
| Applied Environmental Consultancy Limited | Professional & scientific | 2014 |
| AR Realty Ltd | Real estate | 2024 |
| Attey Engineering Limited | Manufacturing | 2016 |
| Auto Contract Limited | Wholesale & retail | 2025 |
| Bella Adams Ltd | Professional & scientific | 2025 |
| Benjamin Leon Wagon Ltd | Extraterritorial | 2025 |
| Bettws Motors Limited | Wholesale & retail | 2015 |
| Boggis Deliveries Ltd | Transport & logistics | 2025 |
| Boss CUT Llanrwst Ltd | Other services | 2026 |
| Bounce Below Limited | Extraterritorial | 2014 |
| Brooke Solutions Ltd | Education | 2014 |
| Bryn Electrics CYF | Construction | 2018 |
| Burger Bay Ltd | Hospitality | 2025 |
| Burtech CYF | Manufacturing | 2006 |
| C L 2 Engineering Limited | Professional & scientific | 2016 |
| C R Davies CYF | Administrative & support | 2016 |
| Caffi HEN Aelwyd CYF | Hospitality | 2020 |
| Campio Crwst CYF | Hospitality | 2019 |
| Carpedi Llanrwst Ltd | Wholesale & retail | 2021 |
| Cartref Contracting Limited | Construction | 2012 |
| Celtic Cooling Limited | Manufacturing | 2008 |
| Central Garage Llanrwst Cyfyngedig | Manufacturing | 2011 |
| Cernyw CYF | Information & communication | 2021 |
| Chandlers Brasserie Limited | Hospitality | 2014 |
| Clever Logistics Ltd | Transport & logistics | 2013 |
| Coates Butchery Ltd | Wholesale & retail | 2023 |
| Codi + Ltd | Professional & scientific | 2018 |
| Conran Perrett (Property Management) Ltd | Households | 2020 |
| Conwy Valley Carpets Ltd | Wholesale & retail | 2022 |
| Conwy Valley Holiday Lets Ltd | Hospitality | 2024 |
| Conwy Valley Meats Limited | Manufacturing | 2007 |
| Conwy Valley Private Hire Ltd | Transport & logistics | 2014 |
| Conwy-Llama CIC | Administrative & support | 2025 |
| Crystal Consulting NW Ltd | Professional & scientific | 2026 |
| Cwmniau Cefngwlad CYF | Information & communication | 2021 |
| Cybsen Creative Ltd | Arts & recreation | 2025 |
| Cyfieithu Cymunedol Conwy CYF. | Administrative & support | 2009 |
| Dave Thomas Windows & Sons Limited | Construction | 2012 |
| Davies Brothers Scaffolding Ltd | Administrative & support | 2017 |
| Dolgarrog Railway Society Limited | Transport & logistics | 2004 |
| Dragon Classic Workshops Ltd | Manufacturing | 2016 |
| Dragon Project Planning Ltd | Administrative & support | 2013 |
| Dragonfly Tea Rooms and Fishery Ltd | Hospitality | 2016 |
| Dyffryn Dyfodol CIC | Arts & recreation | 2023 |
| Dylan Evans Adeiladwr CYF | Construction | 2011 |
| E W Williams Ltd | Agriculture & fishing | 2023 |
| EBM Contractors Ltd | Construction | 2024 |
| Ecogroundkeeping Ltd | Administrative & support | 2025 |
| Eifion Jones CYF | Agriculture & fishing | 2012 |
| Elidir Fencing Ltd | Construction | 2018 |
| Elwy Community Cinema Ltd. | Information & communication | 2026 |
| Emmaline Supply Ltd | Wholesale & retail | 2024 |
| Envision Joinery and Construction Ltd | Manufacturing | 2024 |
| Eryri Accommodation Limited | Real estate | 2023 |
| Eryri Golden Stays Cyfyngedig | Hospitality | 2024 |
| Fairhome Rentals Ltd. | Real estate | 2017 |
| Ffensio MD Fencing CYF | Construction | 2024 |
| Ffiwsar CYF | Professional & scientific | 2018 |
| Fflam Eryri CYF | Construction | 1999 |
| Fflam Y Graig Limited | Wholesale & retail | 2020 |
| Footgolf at Foregolf Limited | Arts & recreation | 2016 |
| Fore Golf Discount (Chester) Limited | Extraterritorial | 1998 |
| Fron Estates Ltd | Extraterritorial | 2011 |
| G & D Jones Ltd | Construction | 2018 |
| G & M Rowlands CYF | Agriculture & fishing | 2019 |
| G R Paving Ltd | Construction | 2024 |
| Garej TY Gwyn CYF | Wholesale & retail | 2016 |
| Gareth Owen Haulage Ltd | Transport & logistics | 2025 |
| GB Logistics Ltd | Transport & logistics | 2025 |
| Geraint Davies Hearing Aids Ltd. | Health & social care | 2006 |
| Glampio Garth Glamping Ltd | Hospitality | 2021 |
| Glasu Pwllheli CYF | Wholesale & retail | 2016 |
| Glyntwrog House Ltd | Hospitality | 2022 |
| Golygfa Carneddau Ltd | Agriculture & fishing | 2022 |
| Golygfa Gwydyr Ltd. | Agriculture & fishing | 2005 |
| Golygfa Gwydyr Management Company Limited | Households | 2014 |
| Gorlan Fwyta Ltd. | Hospitality | 2009 |
| Grays Estates Limited | Professional & scientific | 2010 |
| GUY Adams Ltd | Hospitality | 2026 |
| Gwasanaethau Coed Nant Conwy Tree Services Limited | Agriculture & fishing | 2014 |
| Gwlan Ltd | Information & communication | 2021 |
| Gwydr Lettings Ltd | Real estate | 2024 |
| Gwydr Tractors Ltd | Professional & scientific | 2024 |
| Gwydyr Garage Ltd | Wholesale & retail | 2008 |
| Hafod Farm Weddings Ltd | Hospitality | 2022 |
| Hafodty CYF | Hospitality | 2025 |