| P4F Ltd | Wholesale & retail | 2019 |
| Paradigm Management Services Limited | Professional & scientific | 2013 |
| Parclands Consulting Limited | Professional & scientific | 2018 |
| Parker Swann Ltd | Administrative & support | 2026 |
| Peanut Construction Ltd | Real estate | 2014 |
| Penguin Filling Stations Limited | Wholesale & retail | 2020 |
| Pennyflat Limited | Real estate | 2021 |
| Pentre Farm Llangwm Ltd | Hospitality | 2025 |
| Perfect Image Health and Beauty Salon Limited | Other services | 2012 |
| Perry Plant & Agri Ltd | Construction | 2025 |
| Peruke Limited | Other services | 2007 |
| Peterson & SON Plant Hire Limited | Administrative & support | 2000 |
| Pharmallaney Ltd | Professional & scientific | 2010 |
| Philip Hughes Post Press Limited | Manufacturing | 2009 |
| Photography by LIZ Limited | Professional & scientific | 2011 |
| Pikedaw Limited | Hospitality | 2015 |
| Pilates With Gerri Ltd | Arts & recreation | 2024 |
| PJS Business Consultant Services Limited | Professional & scientific | 2017 |
| Planpoint Limited | Construction | 1978 |
| Polo Ground Motors Limited | Wholesale & retail | 1999 |
| Polygenyn Ltd | Professional & scientific | 2006 |
| Pontyclun Funeral Services Limited | Other services | 2010 |
| Porthycarne Street Management Company Limited | Households | 2021 |
| Post Print Solutions Limited | Manufacturing | 2015 |
| Power and Land Limited | Real estate | 2019 |
| Power My Hub Limited | Information & communication | 2020 |
| Powerflow Systems Limited | Manufacturing | 2012 |
| PRG Chadwick Ltd | Financial services | 2014 |
| Priceportfolio Limited | Construction | 2019 |
| Primrose Dairies Ltd | Agriculture & fishing | 2022 |
| Prioress Mill Lane Management Company Limited | Households | 2010 |
| Progee Professional Golf Shop Limited | Wholesale & retail | 2021 |
| Proline Solutions Limited | Professional & scientific | 2021 |
| Prowell Properties Ltd | Real estate | 2026 |
| PT Operations Ltd | Agriculture & fishing | 2025 |
| R & J Racing Limited | Arts & recreation | 2018 |
| R.G.E.Harvey Limited | Wholesale & retail | 1946 |
| Raglan Agricultural Services Limited | Agriculture & fishing | 1997 |
| Raglan Farm Park Brooks Farm LLP | | 2022 |
| Raglan Garden Company Limited | Wholesale & retail | 2019 |
| Raglan Service Station Ltd | Wholesale & retail | 2026 |
| Raglan Valley Water Ltd | Manufacturing | 2023 |
| Raglan Veterinary Consultancy Limited | Professional & scientific | 2020 |
| RE Neural Limited | Education | 2022 |
| Re-Kreator Ltd | Wholesale & retail | 2020 |
| Red 90 Limited | Information & communication | 2006 |
| Red Dragon Service Station Ltd | Wholesale & retail | 2016 |
| Reda Consulting Limited | Professional & scientific | 2026 |
| Redwick Electrical Services Ltd | Construction | 2020 |
| Relative Properties Limited | Construction | 2015 |
| Revill Enterprises Limited | Real estate | 2020 |
| RG Little Gardening Services Limited | Administrative & support | 2026 |
| RG Locum Private Ltd | Health & social care | 2019 |
| Rhys Giles Hairdressing Ltd | Other services | 2014 |
| Richard Holman Consulting Limited | Professional & scientific | 2018 |
| Ridgeway Contractors Limited | Agriculture & fishing | 2001 |
| Risky Planet Limited | Extraterritorial | 2010 |
| River 11 Limited | Arts & recreation | 2006 |
| River 11 Promotions Limited | Arts & recreation | 2015 |
| Riverside QS Services Limited | Professional & scientific | 2015 |
| Roadmen Ltd | Transport & logistics | 2025 |
| Rockbeare Service Station Ltd | Wholesale & retail | 2026 |
| Ross Project Management Consultancy Limited | Professional & scientific | 2022 |
| Rotec Limited | Professional & scientific | 2023 |
| Saddletoll Limited | Water & waste | 1976 |
| Sadler Henderson Property Management Limited | Real estate | 2021 |
| SAN Salvatore Training Ltd | Professional & scientific | 2016 |
| Satora Limited | Arts & recreation | 2010 |
| Sauce & Gnocchi Limited | Hospitality | 2016 |
| Seager Solutions Ltd | Administrative & support | 2012 |
| Sentinel (Wales) Limited | Professional & scientific | 2011 |
| Seren Homes Limited | Real estate | 2016 |
| Seren Investments Limited | Real estate | 2012 |
| Setic Limited | Construction | 2005 |
| Shannon Mill Consultancy Limited | Professional & scientific | 2016 |
| Shay Smart Developments Ltd | Real estate | 2021 |
| Shmoon Limited | Wholesale & retail | 2020 |
| SHP Limited | Wholesale & retail | 2018 |
| Simon Lewis Photography Limited | Professional & scientific | 2017 |
| Sino-Herbal Medicine Ltd | Health & social care | 2007 |
| SK & WK Investments Limited | Financial services | 2025 |
| Skewered Bristol Limited | Hospitality | 2014 |
| Skirrid Glamping Ltd | Hospitality | 2025 |
| SLR Capital Ltd | Arts & recreation | 2006 |
| Snug Catering Ltd | Hospitality | 2013 |
| Social Care Compliance Solutions Ltd | Professional & scientific | 2015 |
| Solar Panels Wales Limited | Construction | 2022 |
| Solution and Application Professional Services Ltd | Information & communication | 2012 |
| South Wales Gliding Club Limited(The) | Arts & recreation | 1962 |
| Southall Property Limited | Real estate | 2022 |
| Southview Service Station Ltd | Wholesale & retail | 2026 |
| Sport and Leisure Competition Limited | Arts & recreation | 2026 |
| Sporting Genius Ltd | Wholesale & retail | 2013 |
| SQ Management Limited | Administrative & support | 2002 |
| SRW Transport Limited | Transport & logistics | 2020 |
| Steetec Ltd | Transport & logistics | 2025 |
| Stephen Musto Ltd | Professional & scientific | 2024 |
| Stephen Terry Consulting Limited | Professional & scientific | 2021 |
| Sterling Petroleum Development Ltd | Wholesale & retail | 2023 |
| Sterling Petroleum Ltd | Wholesale & retail | 2020 |