| A. J. Prichard (Deganwy) Limited | Real estate | 1947 |
| Abbey Road (Llandudno) Management Limited | Real estate | 2006 |
| Arundel Mansions Management (Llandudno) Limited | Other services | 1995 |
| Asset Finance Options Limited | Financial services | 2004 |
| Belgravia Court Management Co. Limited | Real estate | 1998 |
| Bridge T&D Ltd | Professional & scientific | 2015 |
| C & C Wales Electrical Solutions Ltd | Manufacturing | 2013 |
| C a D Recycling Limited | Water & waste | 2009 |
| Cliff Hall Trade Windows Limited | Construction | 2011 |
| Conway Yacht Club, Limited | Arts & recreation | 1962 |
| Conwy Eco Grants Limited | Professional & scientific | 2017 |
| Conwy Gifts Limited | Wholesale & retail | 2022 |
| Conwy Lettings Limited | Hospitality | 2023 |
| Conwy Tearooms Limited | Hospitality | 2022 |
| Copa 1085 Ltd | Professional & scientific | 2025 |
| CX Project Consulting Limited | Professional & scientific | 2018 |
| Deganwy Play and Learning Association Ltd | Administrative & support | 2004 |
| DNA People Limited | Professional & scientific | 2005 |
| Enviro-Tech Pest Control Ltd | Administrative & support | 2011 |
| Golf Marketing & Management Limited | Administrative & support | 1996 |
| Hall Energy Limited | Manufacturing | 2016 |
| John Fairbrother Associates Limited | Professional & scientific | 2019 |
| Lapaysanne Limited | Hospitality | 2015 |
| Llys Vardre Limited | Households | 2013 |
| Murai Group Ltd | Professional & scientific | 2026 |
| Nanopi Ltd | Real estate | 2023 |
| Olieash Courier Ltd | Transport & logistics | 2025 |
| Orion Toiletries Ltd | Wholesale & retail | 2002 |
| Page Properties LLP | | 2013 |
| Peurne Ltd | Wholesale & retail | 2023 |
| Richard LL Jones Limited | Professional & scientific | 2016 |
| Rycor Limited | Administrative & support | 2026 |
| Scholes Holdings Limited | Financial services | 2025 |
| SJM Beauty Ltd | Other services | 2015 |
| Sw&S Solutions Ltd | Professional & scientific | 2015 |
| Tegfan Management Company Limited | Households | 1989 |
| Turner Shellfish Ltd | Agriculture & fishing | 2025 |
| Waterside Apartments (181) Limited | Administrative & support | 2013 |
| Westrack One Limited | Construction | 2000 |
| Zest Lifestyle Company Limited | Arts & recreation | 2012 |