| Rndc Limited | Professional & scientific | 2025 |
| RR Interior&Maintenance Ltd | Manufacturing | 2026 |
| Ruan Digital Ltd | Wholesale & retail | 2026 |
| Rumi Holidays Ltd | Real estate | 2026 |
| Rutherford Enterprises Ltd | Real estate | 2013 |
| S2S Utilities and Finance Ltd | Administrative & support | 2021 |
| Sabre Property Investment Partnership Limited | Real estate | 2022 |
| Safura Ltd | Health & social care | 2024 |
| Sakura (Abergele) Limited | Hospitality | 2019 |
| SAN Remo Chalet Park Limited | Hospitality | 2003 |
| Sandbank Bakery Limited | Manufacturing | 2003 |
| Sandy Bay Caravan Park Limited | Hospitality | 2007 |
| Sarah & Wayne Homes Limited | Real estate | 2025 |
| Sargent Training Ltd | Administrative & support | 2019 |
| Scouse Solutions Limited | Construction | 2014 |
| Sea Shells Leisure Ltd. | Hospitality | 2003 |
| Seeing EYE Productions Limited | Information & communication | 2006 |
| Seren Healthcare Limited | Health & social care | 2014 |
| Sewell Building & Environmental Services Ltd | Construction | 2014 |
| SIA Dent Ltd | Health & social care | 2018 |
| Sian Eirian CYF | Information & communication | 2012 |
| Siop Y Pentre CYF | Wholesale & retail | 2025 |
| Site Assist Contractors Limited | Other services | 2020 |
| SIX Lines Marketing Ltd | Professional & scientific | 2025 |
| Siôr Limited | Real estate | 2022 |
| SK Scaffolding Services Ltd | Construction | 2024 |
| Skns Limited | Hospitality | 2026 |
| Sktk Loyal Ltd | Wholesale & retail | 2025 |
| Smith Plumbing Co North West Ltd | Construction | 2024 |
| Snowdon Holdings Limited | Professional & scientific | 2021 |
| Snowdonia Dragons Limited | Wholesale & retail | 2013 |
| Solo Hiker Ltd | Information & communication | 2025 |
| Sorentis Ltd | Professional & scientific | 2025 |
| Southways Technical Services Limited | Information & communication | 2023 |
| Sparkle Dust Professional Cleaning Ltd | Administrative & support | 2026 |
| ST CPD Ltd | Education | 2023 |
| Star Carwash & Valeting Ltd | Administrative & support | 2023 |
| Star Tyre Centre Limited | Transport & logistics | 2017 |
| Stephanie’S Holiday Lets Limited | Real estate | 2025 |
| Summit Fitness Solutions Limited | Education | 2019 |
| Sun Valley Caravan Park Limited | Hospitality | 2002 |
| Swaran-Amrik Ltd | Real estate | 2024 |
| Sway Dynamics Limited | Wholesale & retail | 2024 |
| Synchronized Motorcycles Ltd | Wholesale & retail | 2024 |
| Synchronized Properties Ltd | Real estate | 2026 |
| T Rhosydd Farming Ltd | Agriculture & fishing | 2022 |
| T Underhill GAS & Plumbing Ltd | Other services | 2013 |
| Tactical Training Solutions Ltd | Other services | 2020 |
| TAN Y Bont Garage MOT Ltd | Wholesale & retail | 2024 |
| TAN YR Ogof Ltd | Hospitality | 2019 |
| Team Lease Consulting Ltd | Information & communication | 2022 |
| Telynau Tandderwen CYF | Education | 2018 |
| TFC Cafe Ltd | Hospitality | 2026 |
| TG 1911 Limited | Hospitality | 2018 |
| THE Abergele Hoptimist Ltd | Wholesale & retail | 2018 |
| THE AJ Fish Limited | Manufacturing | 2025 |
| THE Artisan Market Company Ltd | Wholesale & retail | 2019 |
| THE Boat Fit Co. Ltd | Manufacturing | 2022 |
| THE Bridge 1820 Ltd | Hospitality | 2025 |
| THE Friends of Abergele Parklands CIC | Professional & scientific | 2025 |
| THE HRH Racing Company Ltd | Wholesale & retail | 2025 |
| THE Kinmel & Kinspa Lodges Ltd | Hospitality | 2025 |
| THE Kinmel Arms Ltd | Hospitality | 2018 |
| THE Little Indian Chef Limited | Hospitality | 2019 |
| THE Midland (Wrexham) Ltd | Hospitality | 2025 |
| THE Optimise Tribe Ltd | Wholesale & retail | 2021 |
| THE Pocket Testament League Limited | Other services | 1979 |
| THE Pokecard Emporium Ltd | Wholesale & retail | 2024 |
| THE SAM Standerwick Memorial Limited | Other services | 2017 |
| THE Ship Fast Food Ltd | Hospitality | 2023 |
| Thinktivate Ltd | Professional & scientific | 2025 |
| Thor Board Limited | Manufacturing | 2012 |
| Threeways Garage Limited | Wholesale & retail | 1984 |
| Threeways Holdings Limited | Professional & scientific | 2003 |
| Threeways Motor Homes Limited | Wholesale & retail | 2003 |
| Threeways Service Station (Abergele) Limited | Wholesale & retail | 2007 |
| Threeways Subway Limited | Hospitality | 2017 |
| Tilly’S Social Limited | Hospitality | 2026 |
| TIR Prince Raceway Limited | Arts & recreation | 1988 |
| Tokala Ltd | Information & communication | 2025 |
| Total Accounting Solutions (Clwyd) Ltd | Professional & scientific | 2008 |
| Towyn Barber Ltd | Other services | 2025 |
| Towyn Chippy Limited | Hospitality | 2019 |
| Towyn Pizza & Kebab House Ltd | Hospitality | 2023 |
| Trident M&E Ltd | Construction | 2025 |
| Tully Delivery Solutions Limited | Transport & logistics | 2021 |
| Twiggy Group Holdings Limited | Professional & scientific | 2023 |
| Twiggy Trading Limited | Real estate | 2023 |
| TY Gwyn Sales Limited | Wholesale & retail | 2015 |
| Ty'N Ddol CYF | Agriculture & fishing | 2025 |
| Tyddyn Clefi Caravan Park Ltd | Hospitality | 2016 |
| TYN Ffynnon CYF | Agriculture & fishing | 2023 |
| Vapesmiths Ltd | Wholesale & retail | 2023 |
| Vapour Lounge Ltd | Wholesale & retail | 2026 |
| Vatsystems Consultants (North Wales) Limited | Professional & scientific | 2010 |
| Vault Sentinel Limited | Information & communication | 2020 |
| VEO Management Limited | Information & communication | 2003 |
| Vera’S Group Ltd | Manufacturing | 2025 |
| Vital Accounting & Business Solutions Ltd | Professional & scientific | 2017 |
| Vwbase Ltd | Wholesale & retail | 2020 |