| Nauticuas Inspection & Survey Limited | Mining & quarrying | 2017 |
| Nete Limited | Information & communication | 2010 |
| Nmills IT Consulting Ltd | Administrative & support | 2023 |
| NO 11 Ruthin Limited | Hospitality | 2024 |
| North East Wales Geotechnical Engineering Ltd | Professional & scientific | 2014 |
| North Wales Eco Lodges Ltd | Hospitality | 2021 |
| North Wales Fireplaces Limited | Manufacturing | 2013 |
| North Wales Mobility Limited | Wholesale & retail | 2026 |
| North Wales Outdoor Learning Limited | Education | 2020 |
| North Wales Sheds Limited | Manufacturing | 2013 |
| Northwest Signs Limited | Manufacturing | 2013 |
| NRW Site Services Ltd | Manufacturing | 2021 |
| NW Onsite Ltd | Administrative & support | 2023 |
| NWH Limited | Construction | 2018 |
| Nxtgp Limited | Administrative & support | 2014 |
| O.T.S. (NW) Limited | Transport & logistics | 2001 |
| Offa (UK) Limited | Wholesale & retail | 2000 |
| Offshore Transfer Devices Ltd | Construction | 2013 |
| Oliver Bell Interiors Limited | Wholesale & retail | 2021 |
| Oliver Bell Limited | Real estate | 2021 |
| Onetwo Technology Limited | Information & communication | 2023 |
| Opta Lettings Ltd | Real estate | 2014 |
| Oryx Spirits Ltd | Manufacturing | 2021 |
| Oswestry Offices Limited | Real estate | 2022 |
| Oswestry Properties Ltd | Real estate | 2019 |
| Out-Fit Personal Fitness Limited | Arts & recreation | 2007 |
| P&All Property Services Ltd | Real estate | 2025 |
| Pappy's Bricks Ltd | Wholesale & retail | 2025 |
| Paradox Sail and Race Limited | Arts & recreation | 2023 |
| Partneriaeth Y Wern Partnership LLP | | 2011 |
| Patrick Carroll Building Contractors Ltd | Construction | 2021 |
| Pattern Property Development Limited | Construction | 2020 |
| Pattern Property Limited | Construction | 2020 |
| Paws for Support Ltd | Education | 2024 |
| PEN Palmant Limited | Construction | 2021 |
| Penman (Recirculating Hydro Electric) Power Ltd | Energy | 2015 |
| PHD Agri Limited | Agriculture & fishing | 2022 |
| Phil Lovell Associates Limited | Professional & scientific | 2012 |
| Picture House Ruthin Ltd | Real estate | 2022 |
| Pine and Oak Direct Limited | Wholesale & retail | 1997 |
| Plantex Machinery Limited | Administrative & support | 2024 |
| Plas Gwyn Nursing Home Ltd | Health & social care | 2023 |
| Pmotech Limited | Construction | 2017 |
| PMV Morris Ltd | Administrative & support | 2009 |
| Polly Financial Solutions Ltd | Financial services | 2023 |
| Pool Park Limited | Construction | 2013 |
| Powell Accountants Limited | Professional & scientific | 2015 |
| Power in Partnership (Warrington) Ltd | Education | 2021 |
| Powerline Property Limited | Real estate | 2007 |
| PR Verandas Ltd | Construction | 2025 |
| Prairie Rose Property Support Limited | Administrative & support | 2016 |
| Premier Football Tickets Ltd | Wholesale & retail | 2024 |
| Prism Lighting Limited | Administrative & support | 2009 |
| Prompt Comms Limited | Information & communication | 2006 |
| Pulse Group Holdings Ltd | Health & social care | 2023 |
| Pupa Productions Ltd | Information & communication | 2018 |
| Pure Corporate Advisory LLP | | 2015 |
| Quercus Medical Communications Limited | Information & communication | 2003 |
| R a O Property Services Ltd | Construction | 2024 |
| R B C Management 2016 Ltd | Administrative & support | 2006 |
| R Davies & I Williams Limited | Administrative & support | 2016 |
| R I G Joinery Limited | Manufacturing | 2009 |
| R I Roberts Farming Ltd | Agriculture & fishing | 2024 |
| R M Faulkner Limited | Wholesale & retail | 2016 |
| R M Jones Joinery Limited | Manufacturing | 2013 |
| R S Hunter & SON Limited | Construction | 2021 |
| R. Ellis & SON Ltd | Manufacturing | 2026 |
| RA Classics Ltd | Wholesale & retail | 2021 |
| Ramsport ENG Ltd | Professional & scientific | 2024 |
| Ramsport Group Ltd | Wholesale & retail | 2024 |
| Ramsport V&C Ltd | Wholesale & retail | 2025 |
| Randall's ARB Ltd | Agriculture & fishing | 2023 |
| Ransons of Ruthin Ltd | Real estate | 2021 |
| Rawcast Ltd. | Information & communication | 2013 |
| RCC Import.Com Limited | Wholesale & retail | 1996 |
| RCJ Ruthin Ltd | Transport & logistics | 2017 |
| Red Lion Hotel (Ruthin) Ltd | Hospitality | 2022 |
| Refurb Zone Limited | Wholesale & retail | 2025 |
| Renards RC Ltd | Professional & scientific | 2023 |
| Renewable Services HV Ltd. | Energy | 2019 |
| Resource Denbighshire CIC | Water & waste | 2020 |
| Revive Detailing NW Limited | Administrative & support | 2020 |
| Rhhc CYF | Real estate | 2024 |
| Rhydonnen CYF | Agriculture & fishing | 2019 |
| Richard Bethell Limited | Manufacturing | 2005 |
| Richard H Francis Ltd | Agriculture & fishing | 2004 |
| Richards, Moorehead and Laing Limited | Professional & scientific | 1984 |
| Rigs Hospitality Ltd | Hospitality | 2024 |
| Rising Moon Property Limited | Real estate | 2020 |
| ROB Dennis Electrical Ltd | Construction | 2023 |
| Roberto's Framing Ltd | Wholesale & retail | 2025 |
| Roberto's Future Ltd | Wholesale & retail | 2024 |
| Roberto's World Ltd | Transport & logistics | 2015 |
| Roberts Business Support Limited | Professional & scientific | 2016 |
| Roberts Estates Limited | Real estate | 2013 |
| Roberts Homes (North Wales) Limited | Health & social care | 1995 |
| Roberts Homes Limited | Construction | 1989 |
| Root and Rise Learning Ltd | Wholesale & retail | 2026 |
| Rose Gold Wirral Ltd | Real estate | 2025 |
| RPC Environmental Solutions Ltd | Manufacturing | 2013 |