| NO.22 Holdco Ltd | Real estate | 2025 |
| Nomadhutts Ltd | Construction | 2023 |
| Nope Studios Ltd | Extraterritorial | 2022 |
| North East Area Properties Ltd | Real estate | 2021 |
| North Wales Caravans & Leisure Limited | Wholesale & retail | 2018 |
| North Wales Caravans Limited | Wholesale & retail | 2009 |
| North Wales Commercial Laundry Services Ltd | Manufacturing | 2026 |
| North Wales Cottages Limited | Real estate | 2021 |
| North Wales Dairies Ltd | Wholesale & retail | 2025 |
| North Wales Golf Shop Limited | Wholesale & retail | 2004 |
| North Wales JAG Centre Ltd | Wholesale & retail | 2010 |
| North Wales Model Engineering Society | Other services | 1997 |
| North Wales Motor Company Limited | Wholesale & retail | 2011 |
| North Wales Nail & Beauty Training Ltd | Other services | 2015 |
| North Wales Sauna Ltd | Health & social care | 2025 |
| North Wales Scaffolding Limited | Construction | 2014 |
| North Wales Shipping Services Limited | Transport & logistics | 2009 |
| North Wales Surveyors Ltd | Professional & scientific | 2009 |
| North Wales Surveys CYF | Extraterritorial | 2017 |
| North Wales Training Ltd. | Education | 1986 |
| Northern Pottery Ltd | Wholesale & retail | 2016 |
| Northsole Ltd | Wholesale & retail | 2024 |
| NOW YOU CAN, EY! CYF | Information & communication | 2015 |
| Noxo Ltd | Wholesale & retail | 2022 |
| NS Mobility Ltd | Wholesale & retail | 2025 |
| NS Prime Properties Ltd | Construction | 2019 |
| Nuckles Limited | Wholesale & retail | 2025 |
| NW51 Limited | Professional & scientific | 2010 |
| NWC Country Retreats Ltd | Hospitality | 2010 |
| Nwch Limited | Transport & logistics | 2002 |
| NWE Entertainments Ltd | Arts & recreation | 2019 |
| Oasis Llandudno Ltd | Financial services | 2023 |
| Ocelot BI Limited | Other services | 2020 |
| Odyssey Neuroscience Ltd | Professional & scientific | 2026 |
| OFW Recruitment UK Ltd | Administrative & support | 2025 |
| OGH Ventures Limited | Professional & scientific | 2012 |
| Ogilvy & Estill Ltd | Extraterritorial | 1997 |
| OJM Roofing Ltd | Construction | 2025 |
| Old Ship Trefriw Ltd | Hospitality | 2020 |
| Olwenpropertygroup Ltd | Financial services | 2026 |
| Olympia & Athos Ltd | Financial services | 2023 |
| Olympos Limited | Hospitality | 2024 |
| ON IT NOT in IT Limited | Wholesale & retail | 2012 |
| One 47 Group Limited | Hospitality | 2018 |
| Online Metal Ltd | Wholesale & retail | 2013 |
| Operative Contracts Ltd | Construction | 2025 |
| Orange Outdoors Ltd | Education | 2023 |
| Orme Access Ltd | Construction | 2024 |
| Orme and Coast Property Ltd | Real estate | 2026 |
| Orme and Coast Residential Ltd. | Real estate | 2018 |
| Orme Capital Ltd | Real estate | 2025 |
| Orme Electrical NW Limited | Construction | 2025 |
| Orme Financial Services Ltd | Financial services | 2004 |
| Orme Holidays Limited | Real estate | 2026 |
| Orme Leisure Limited | Real estate | 2025 |
| Orme Safety Limited | Professional & scientific | 2021 |
| Orme Travel Limited | Administrative & support | 2011 |
| Orme View (Colwyn Bay) Management Limited | Real estate | 2008 |
| Orme View Care Home Limited | Health & social care | 2019 |
| Orme Wind Solutions Ltd | Professional & scientific | 2023 |
| Ormes Property Lettings Ltd | Real estate | 2024 |
| Ormeside Court Llandudno Limited | Administrative & support | 1985 |
| Outside Food Group Ltd | Hospitality | 2016 |
| Oxford Road Properties Limited | Administrative & support | 2010 |
| Ozzy’S Barber Llandudno Ltd | Other services | 2026 |
| P C Studios Ltd | Professional & scientific | 2018 |
| P L Light Haulage Limited | Transport & logistics | 2015 |
| Paintworks NW Ltd | Construction | 2024 |
| Pallot-Cook Consultancy Limited | Professional & scientific | 2018 |
| PAN Celtic Race Ltd. | Arts & recreation | 2018 |
| Parisella's Ice Cream Parlour Ltd | Hospitality | 2014 |
| Parisella's of Conwy Ltd | Extraterritorial | 2024 |
| Park View Garage (Lloc) Limited | Wholesale & retail | 2020 |
| Patch'Ng Limited | Information & communication | 2025 |
| Pathfinder Systems Ltd | Information & communication | 2015 |
| Paul Ashley Ltd | Professional & scientific | 2011 |
| Paul Bentley Wholesale Confectioner Limited | Wholesale & retail | 2005 |
| Paul Brereton Limited | Manufacturing | 2003 |
| Paul Joyce Training Solutions Ltd | Education | 2022 |
| Paul Michael French CYF | Extraterritorial | 2026 |
| Paul Woods Wind Ltd | Professional & scientific | 2026 |
| Peagrams Haulage Ltd | Transport & logistics | 2025 |
| Peak Carpentry Ltd | Manufacturing | 2021 |
| Peak Create Ltd | Information & communication | 2020 |
| Pen-Y-Parc Management Limited | Households | 2004 |
| Pendragon Drinks Ltd | Manufacturing | 2021 |
| Penn Maddocks Limited | Real estate | 2017 |
| Pennant Private Medical Services Ltd | Health & social care | 2021 |
| Pennine Trent Limited | Professional & scientific | 2000 |
| Penrhyn Caravan Sales Limited | Hospitality | 1998 |
| Penrhyn Isaf Management Company Limited | Other services | 2017 |
| Penrhyn New Hall Limited | Arts & recreation | 1969 |
| Penrhyn Old Hall Developments Limited | Hospitality | 1962 |
| Penrhynblinds Limited | Manufacturing | 2005 |
| Personalised Bottle Labels Ltd | Wholesale & retail | 2016 |
| Pesinked Limited | Financial services | 2011 |
| Peter Johnson Financial Planning Ltd | Financial services | 2012 |
| Peter LEE Carpets Limited | Wholesale & retail | 2014 |
| Peters Online Shop Limited | Wholesale & retail | 2021 |
| Pets on the Pier Limited | Wholesale & retail | 2022 |