| Planet Property Group Limited | Real estate | 2020 |
| Plas Aney Management Company Limited | Households | 2002 |
| Plas Gwysaney Limited | Hospitality | 2022 |
| Play & Grow Nursery Limited | Health & social care | 2010 |
| Plough & Pantry Ltd | Hospitality | 2026 |
| PLS 2026 LLP | | 2011 |
| PMC Holdings Limited | Professional & scientific | 2006 |
| Polly's Brew Co. Ltd | Manufacturing | 2018 |
| Polly's Social Ltd | Manufacturing | 2024 |
| Poochies Dog Grooming Ltd | Other services | 2009 |
| Portable Mapper Ltd | Information & communication | 2021 |
| Poster Servicing Limited | Real estate | 1955 |
| Posture Right Limited | Health & social care | 2019 |
| Premier Care Plus Limited | Health & social care | 2009 |
| Premier Homecare North Wales Ltd. | Health & social care | 1995 |
| Printcentre Wales Limited | Manufacturing | 1985 |
| Pritchard Interims Limited | Professional & scientific | 2025 |
| Production Automation Limited | Professional & scientific | 2018 |
| Prometheus UK Holdings Limited | Administrative & support | 2015 |
| Prospace Holdings Ltd | Real estate | 2025 |
| PRS Connect Limited | Administrative & support | 2022 |
| Prys-Owen Developments Ltd | Construction | 2022 |
| PT Fitness Limited | Arts & recreation | 2004 |
| Pump IT Limited | Construction | 2012 |
| Purdy Property Developments Ltd | Real estate | 2020 |
| Q Branch Automotive Ltd | Wholesale & retail | 2022 |
| Qantex Ltd | Administrative & support | 2006 |
| QC NDE Ltd | Professional & scientific | 2023 |
| QPC (Australian Holdings) Limited | Information & communication | 2025 |
| QPC 2020 Limited | Information & communication | 2020 |
| QPC 2025 Limited | Information & communication | 2025 |
| QPC Group Limited | Information & communication | 2002 |
| QPC Holdings Limited | Financial services | 2007 |
| QPC Limited | Information & communication | 1991 |
| Quiet Homes Limited | Hospitality | 2019 |
| Quirks Group Ltd | Real estate | 2024 |
| Quirks Property Maintenance Ltd | Construction | 2015 |
| R & R Tattoo Piercing Beauty Studio Limited | Other services | 2022 |
| R C Davies Properties Ltd | Real estate | 2026 |
| R Hughes Planthire Limited | Construction | 2015 |
| R L J Validation Limited | Professional & scientific | 2010 |
| R M Coatings Ltd | Construction | 2020 |
| R&N Bloomin Gardens Limited | Administrative & support | 2025 |
| R.G Groundwork’S and Civils Ltd | Construction | 2022 |
| R2L Thinking Limited | Professional & scientific | 2023 |
| Raccuja R&R Limited | Hospitality | 2026 |
| Ramson Transport Ltd | Transport & logistics | 2025 |
| Rapid Fire Creative Limited | Professional & scientific | 2013 |
| Rapr Holdings Limited | Financial services | 2025 |
| Raven MAD Limited | Hospitality | 2009 |
| RCD Plumbing & Heating Services Ltd | Construction | 2026 |
| RDC Partners LLP | | 2003 |
| RDC9 Ltd | Wholesale & retail | 2018 |
| Rebuilt Stays Ltd | Real estate | 2025 |
| Red and White Properties Limited | Real estate | 2018 |
| Red JAM Developments Limited | Construction | 2005 |
| Reed Family Ltd | Real estate | 2024 |
| Reef Safety and Office Services Limited | Professional & scientific | 2006 |
| Reflekt Contracting Services Limited | Administrative & support | 2021 |
| Regent Street Motors (Wrexham) Limited | Professional & scientific | 1975 |
| Reignite Purpose Limited | Professional & scientific | 2024 |
| Reilly Masonry Ltd | Construction | 2022 |
| Reindeer Lodge Ltd | Arts & recreation | 2018 |
| Relax Property Perfected Limited | Construction | 2025 |
| Relays Mini Buses Ltd | Transport & logistics | 2013 |
| Renewable Energy Technology Academy Ltd | Education | 2022 |
| Rent a Pump Services Limited | Administrative & support | 2025 |
| Revitupuk Ltd | Wholesale & retail | 2019 |
| Rfid Direct Ltd | Wholesale & retail | 2010 |
| RFL Credit Ltd | Financial services | 2022 |
| RFP Bowness Limited | Wholesale & retail | 2024 |
| RFP Brighton Limited | Wholesale & retail | 2006 |
| RFP Chester Limited | Manufacturing | 2011 |
| RFP Keswick Limited | Manufacturing | 2015 |
| Rhoscaer Limited | Hospitality | 2021 |
| Rhydymwyn SS Holdings Limited | Financial services | 2024 |
| Rhyl Miniature Railway Limited | Transport & logistics | 2022 |
| Richard Denton Properties Ltd | Construction | 2023 |
| Ridgeborough Associates Limited | Administrative & support | 2014 |
| Rivington Haulage Ltd | Transport & logistics | 2006 |
| RJ Classics Ltd | Wholesale & retail | 2021 |
| RJB Accountancy Services Limited | Professional & scientific | 2025 |
| RJH Construction (North Wales) Limited | Construction | 2010 |
| RJT Pharma Services Ltd | Professional & scientific | 2018 |
| RKM Properties Ltd | Construction | 2013 |
| RM Developments (NW) Ltd | Real estate | 2018 |
| RMJ Academy Ltd | Arts & recreation | 2023 |
| ROB Paul's Circuit & Fitness Ltd | Arts & recreation | 2016 |
| Roberts & Co Estate and Lettings Agents Ltd | Real estate | 2026 |
| Roberts and Thomas Limited | Wholesale & retail | 2021 |
| Roberts Development Solutions Limited | Professional & scientific | 2012 |
| Robinson Jones Construction Limited | Construction | 2014 |
| Rofma Limited | Professional & scientific | 2014 |
| Rolemark Limited | Construction | 2000 |
| Romalifi Ltd | Real estate | 2025 |
| Rondows Ltd | Administrative & support | 2023 |
| Rootball Coaching & Consultancy Ltd | Professional & scientific | 2019 |
| Ropeneka Limited | Real estate | 2025 |
| Rose Education Services Ltd | Education | 2025 |
| Rossett Developments Limited | Real estate | 1995 |