| PM Coombes (Property) Limited | Real estate | 2022 |
| Polydynamics Limited | Manufacturing | 1999 |
| Popeye Fish Bar Ltd | Hospitality | 2023 |
| Poppys Lodge Ltd | Hospitality | 2025 |
| Portal Games & Entertainment Limited | Wholesale & retail | 2016 |
| Porthmadog Limited | Hospitality | 2020 |
| Premier Truck Solutions Ltd | Wholesale & retail | 2026 |
| Prestatyn Self Storage Ltd | Transport & logistics | 2026 |
| Prestatyn Target Shooting Club | Arts & recreation | 2021 |
| Prestige Construction NW Ltd | Construction | 2024 |
| Prime Solutions Line Ltd | Administrative & support | 2025 |
| Primelee Ltd | Wholesale & retail | 2025 |
| Pro Castles Limited | Manufacturing | 2021 |
| Pro-V Technical Limited | Manufacturing | 2008 |
| Probuild (Wales) Limited | Construction | 2012 |
| Procare Wales Limited | Health & social care | 2001 |
| Professor Bulk TCG Limited | Wholesale & retail | 2025 |
| Progressive Tool Design Limited | Manufacturing | 2004 |
| Propaint (UK) Limited | Construction | 2003 |
| Propaint Contracts Limited | Financial services | 2010 |
| Property Renovation Rhyl Ltd | Real estate | 2025 |
| Property-Holic Ltd | Construction | 2025 |
| PSL Transport Services Limited | Administrative & support | 2020 |
| Puffin Retreats Limited | Hospitality | 2025 |
| Qistaff Solutions Limited | Administrative & support | 2013 |
| Qrboxx Ltd | Information & communication | 2023 |
| Quality Pipework Solutions Ltd. | Manufacturing | 2018 |
| Quintet Amigos Ltd | Real estate | 2025 |
| QZM Properties Ltd | Real estate | 2026 |
| R & G Elite Ltd | Hospitality | 2025 |
| R Moore Building Conservation Ltd | Construction | 2023 |
| R.B.K Rail Ltd | Construction | 2018 |
| R.C.S. Trading CIC | Hospitality | 2013 |
| R.D.Johnson & Sons Limited | Extraterritorial | 2000 |
| R.G.B. Webster & Sons Limited | Manufacturing | 1991 |
| R.S.R. (Rhyl) Ltd | Wholesale & retail | 1999 |
| Radar Public Relations Ltd | Professional & scientific | 2017 |
| Rakestraw Construction Limited | Construction | 2015 |
| Ramfish Limited | Arts & recreation | 1991 |
| Rapallo Medical Limited | Health & social care | 2003 |
| Rapid Removals (NW) Ltd | Transport & logistics | 2020 |
| Raptor Security Ltd | Administrative & support | 2024 |
| RAW Gymwear Ltd | Wholesale & retail | 2023 |
| RAY Jones Transport Ltd | Other services | 2020 |
| RD Games Limited | Wholesale & retail | 2015 |
| Recycling Wales Limited | Water & waste | 2008 |
| Redfern Electrical Limited | Construction | 2025 |
| Rees Brothers Limited | Construction | 2012 |
| Refurb Building Contractors Limited | Construction | 2021 |
| Regal Diva Jewellery Limited | Wholesale & retail | 2024 |
| Relayflow AI Limited | Information & communication | 2026 |
| Reliable Lead Generation & Canvassing Ltd | Professional & scientific | 2020 |
| Repairs 2025 Limited | Other services | 2025 |
| Restorazen Ltd | Wholesale & retail | 2024 |
| Retroelectro Limited | Other services | 2020 |
| Retrofit Ltd | Construction | 2015 |
| Revive N Shine Ltd | Administrative & support | 2024 |
| RFM (Rent From ME) Limited | Real estate | 2012 |
| RHI RHI & Stubbsy's Ltd | Real estate | 2025 |
| Rhianfa Centre Limited | Professional & scientific | 2022 |
| Rhydwen Farm Mews Management Company Limited | Extraterritorial | 2003 |
| Rhyl & District RFC Limited | Arts & recreation | 2012 |
| Rhyl Blinds & Curtains Limited | Manufacturing | 2013 |
| Rhyl Cabs Ltd | Transport & logistics | 2023 |
| Rhyl City Strategy Community Interest Company | Administrative & support | 2008 |
| Rhyl Convenience Store Ltd | Wholesale & retail | 2026 |
| Rhyl Deal Limited | Wholesale & retail | 2022 |
| Rhyl E-Cool Ltd | Education | 2015 |
| Rhyl FC C.I.C. | Arts & recreation | 2020 |
| Rhyl Golf Cafe Bar Ltd | Hospitality | 2026 |
| Rhyl Golf Club Ltd | Arts & recreation | 2011 |
| Rhyl International Food Limited | Wholesale & retail | 2024 |
| Rhyl International Ltd | Wholesale & retail | 2026 |
| Rhyl Masonic Buildings.Limited(The) | Other services | 1931 |
| Rhyl Meat & Grocery Supermarket Ltd | Wholesale & retail | 2024 |
| Rhyl Mobiles Limited | Wholesale & retail | 2024 |
| Rhyl Rugby Services Limited | Administrative & support | 2016 |
| Rhyl Services Limited | Professional & scientific | 1990 |
| Rhyl Smiles & Healthcare Ltd | Health & social care | 2025 |
| Rhyl Specsavers Limited | Wholesale & retail | 1991 |
| Rhyl Spice Ltd | Hospitality | 2025 |
| Rhyl Subs Limited | Wholesale & retail | 2019 |
| Rhyl Superstore Limited | Wholesale & retail | 2025 |
| Rhyl Tandoori Limited | Hospitality | 2016 |
| Rhyl Visionplus Limited | Wholesale & retail | 2001 |
| Rhyl Youth Amateur Boxing Club CIC | Arts & recreation | 2025 |
| Rhylapart Hotels Limited | Hospitality | 2024 |
| Rhylcreate Ltd | Arts & recreation | 2007 |
| Rhyller Thriller Limited | Professional & scientific | 2023 |
| Rhys-Jones & Young Properties Limited | Real estate | 2016 |
| Rickden Ltd | Administrative & support | 2024 |
| Rivercairn Limited | | 1985 |
| RJ Agri Ltd | Agriculture & fishing | 2025 |
| RJ Forwarding Solutions Ltd | Transport & logistics | 2025 |
| RJN Property Ventures Ltd | Real estate | 2025 |
| RLJ Health Care Limited | Health & social care | 2019 |
| Roberts Electrical NW Ltd | Construction | 2003 |
| Robertsmeade EHS Ltd | Professional & scientific | 2025 |
| Rocket Van Hire Ltd | Administrative & support | 2022 |
| Roger E Hudson Physiotherapy Limited | Health & social care | 2003 |