| PGL Enterprises Limited | Hospitality | 2005 |
| PGL Restaurants Limited | Extraterritorial | 2007 |
| PGR Peptides Ltd | Wholesale & retail | 2026 |
| Phantom North Audio Ltd | Administrative & support | 2020 |
| Phenlor 2 Ltd | Extraterritorial | 2013 |
| PIJ Tattoo Ltd | Other services | 2022 |
| PJ Solar PV Ltd | Construction | 2023 |
| Plas Myrddin Management Company Limited | Households | 2004 |
| PMC Educational Consultancy Limited | Education | 2017 |
| Poalakanda UK Ltd | Extraterritorial | 2022 |
| Polypaint Limited | Construction | 2023 |
| Poole & Ashton Ltd | Construction | 2004 |
| Porth Mawr Limited | Real estate | 2012 |
| Portman Surveyors Limited | Professional & scientific | 2012 |
| Power Nest Services Limited | Energy | 2025 |
| Powerlineservices Ltd | Construction | 2014 |
| Prestige Vehicle Movements Ltd | Transport & logistics | 2011 |
| Priceless Pampering Limited | Real estate | 2013 |
| Primecare (North Wales) Ltd | Health & social care | 2018 |
| Print Approved Limited | Manufacturing | 2009 |
| Pro Procurement People Ltd | Real estate | 2023 |
| Pro-Tecta Ltd | Real estate | 2013 |
| Proactive Avian Solutions Limited | Administrative & support | 2026 |
| Proactive Pest Solutions Ltd | Administrative & support | 2013 |
| Probuild Enterprises Limited | Construction | 2023 |
| Professional Wealth Strategies Limited | Financial services | 2024 |
| Profit & Wealth Limited | Professional & scientific | 2018 |
| Projects (NW) Ltd | Construction | 2023 |
| Promek Limited | Manufacturing | 2007 |
| Promo Ideas Ltd | Professional & scientific | 2019 |
| Prontus Limited | Professional & scientific | 2020 |
| Property LET Holdings Ltd | Real estate | 2025 |
| Providence Property Holdings Limited | Real estate | 2018 |
| Providero North Wales Limited | Hospitality | 2019 |
| PRS- Property Report Solutions Ltd | Professional & scientific | 2023 |
| PSS1 Ltd | Real estate | 2018 |
| PWH Heavy Lift Services Ltd | Construction | 2013 |
| Quality Internet Solutions Ltd | Information & communication | 2008 |
| Quay Medical Training Limited | Education | 2015 |
| Quay-Side Charter Services Ltd | Other services | 2018 |
| R L Rogers Property Limited | Real estate | 2025 |
| R Lyons Electrical Limited | Construction | 2012 |
| R P H Joinery Limited | Construction | 2003 |
| R1 Kart Racing Ltd | Arts & recreation | 2025 |
| Rafferty & Jones Ltd | Hospitality | 2025 |
| Rannoch Developments Ltd | Construction | 2021 |
| Raveaux Consulting Ltd | Professional & scientific | 2025 |
| Raveaux Ltd | Real estate | 2024 |
| Razor Utility & Construction Limited | Construction | 2021 |
| RC Cosmetics Limited | Wholesale & retail | 2014 |
| Rebar Strength Limited | Wholesale & retail | 2024 |
| Rebecca Ayton Behaviour Consultancy Ltd | Education | 2024 |
| Redmond Reeds Limited | Transport & logistics | 1989 |
| Reece Construction Limited | Construction | 2019 |
| REI LUX UK Limited | Professional & scientific | 2014 |
| Rejuvenate Estate CYF | Real estate | 2024 |
| Remix Records Ltd | Wholesale & retail | 2025 |
| Renewable Shields Ltd | Manufacturing | 2023 |
| Rest & BE Thankful Ltd | Hospitality | 2025 |
| Restored Hope Painting & Decorating Services Ltd | Construction | 2025 |
| RG Golf Shop Ltd | Wholesale & retail | 2020 |
| RGC Site Management Limited | Agriculture & fishing | 2020 |
| Rhos Leisure Limited | Arts & recreation | 2025 |
| Rhos Pubs Limited | Hospitality | 2010 |
| Richard Aczel Limited | Professional & scientific | 2005 |
| Richard's Windows Ltd | Other services | 2019 |
| Richardson Windows Limited | Construction | 2006 |
| Ricp Limited | Information & communication | 2013 |
| Rise N Shine Property Innovations Limited | Real estate | 2025 |
| RITMO360 Ltd | Professional & scientific | 2023 |
| River and Sea Sense Ltd | Education | 2008 |
| Riverbridge Coaching Limited | Other services | 2022 |
| Riverside Caravan Park (North Wales) Limited | Extraterritorial | 2019 |
| Riverside Lifts Limited | Administrative & support | 2004 |
| RJD Developments (Anglesey) Limited | Construction | 2020 |
| RM Turner Ltd | Extraterritorial | 2012 |
| RMW Energy Solutions Ltd | Professional & scientific | 2023 |
| Roberts Electrical Engineering Ltd | Professional & scientific | 2026 |
| Rock Project NW Wales Ltd | Education | 2018 |
| ROOM40DIGITAL Ltd | Hospitality | 2016 |
| Root UP Limited | Professional & scientific | 2023 |
| Rose & YAD Properties Ltd | Real estate | 2024 |
| Ross Moreton Ltd | Other services | 2016 |
| RPC Roofing Limited | Construction | 2018 |
| Rpet Consultancy Services Ltd | Professional & scientific | 2025 |
| RPL Enterprises Limited | Hospitality | 2009 |
| Run GBR Limited | Arts & recreation | 2015 |
| Runwales Ltd | Other services | 2010 |
| Russ Davies Consulting Ltd | Professional & scientific | 2021 |
| Rydal Partners Ltd | Financial services | 2025 |
| Ryder Hotels Ltd | Hospitality | 2018 |
| S D Lloyd Builders Limited | Construction | 2015 |
| S P Lamps Limited | Wholesale & retail | 2016 |
| S. Bushnell Heating and Plumbing Ltd | Other services | 2018 |
| S.V.C.G. Limited | Real estate | 2017 |
| Saber Hotels Ltd | Hospitality | 2020 |
| Sacred Knot Tattoo Ltd | Arts & recreation | 2017 |
| Safe Travels VIP Ltd | Transport & logistics | 2022 |
| Safety Code Ltd | Information & communication | 2011 |
| Sahara Medical Limited | Health & social care | 2022 |