| Progas UK Limited | Other services | 1992 |
| Progress Point Partners Ltd | Construction | 2026 |
| Project Solutions (London) Limited | Professional & scientific | 2007 |
| Project Video Productions Limited | Information & communication | 1987 |
| Project X Fitness Ltd | Arts & recreation | 2020 |
| Projects Department Limited | Professional & scientific | 1999 |
| Proloncontrols Ltd | Manufacturing | 2026 |
| Property Capital Management Ltd | Wholesale & retail | 2025 |
| Property Direct UK Limited | Real estate | 1996 |
| Property Hustle and Bustle .Co.Uk Ltd | Information & communication | 2025 |
| Property Law Partners Limited | Professional & scientific | 2004 |
| Property Maestros Limited | Real estate | 2004 |
| Property Reviews Limited | Other services | 2006 |
| Prosite (UK) Limited | Construction | 2000 |
| Prospect House Residents Association Limited | Households | 2004 |
| Protocol Ltd | Information & communication | 1996 |
| Providential Properties Ltd | Real estate | 2002 |
| Provincial House (Kingston Upon Thames) Residents Association Limited | Households | 1969 |
| Provision Solutions Limited | Administrative & support | 2003 |
| PRS & SON (Building Services) Limited | Construction | 1999 |
| PS Landlords Ltd | Real estate | 2021 |
| PSM International Limited | Transport & logistics | 2025 |
| Pspc Limited | Professional & scientific | 2006 |
| Public Affairs & Marketing Limited | Professional & scientific | 1985 |
| Publicity Hounds Ltd | Manufacturing | 2024 |
| Pullinger Property Limited | Real estate | 1993 |
| Pullvalue Ltd | Wholesale & retail | 2026 |
| Pumphrey Dasalo Limited | Professional & scientific | 2006 |
| Purdome Limited | Wholesale & retail | 1973 |
| Pure Planet Trust | Other services | 2007 |
| Purland Limited | Information & communication | 1997 |
| Purley Day Nursery Limited | Administrative & support | 2001 |
| Purley Downs Company Limited | Real estate | 1903 |
| Purley Downs Golf Club Limited | Arts & recreation | 1946 |
| Purley Language College Limited | Education | 2001 |
| Purlife Company Ltd | Extraterritorial | 1996 |
| Purple Valley Yoga Limited | Professional & scientific | 2005 |
| Purssey & Sons Limited | Construction | 2017 |
| Putare Limited | Extraterritorial | 2006 |
| Q Motors Workshop Limited | Manufacturing | 2000 |
| Q&A Marketing Ltd | Professional & scientific | 2020 |
| QA Calling Limited | Administrative & support | 2006 |
| Qaisar Construction Ltd | Construction | 2018 |
| Qinexus Limited | Information & communication | 2001 |
| QL Holdings Limited | Financial services | 2024 |
| Qlink Limited | Information & communication | 2000 |
| QML Properties (701) Ltd | Real estate | 2026 |
| QML Properties (702) Ltd | Real estate | 2026 |
| QML Properties (703) Ltd | Real estate | 2026 |
| QML Properties (704) Ltd | Real estate | 2026 |
| QNS Properties Ltd | Real estate | 2023 |
| Qual Limited | Information & communication | 1994 |
| Qualipharma Limited | Administrative & support | 2001 |
| Quality Driving Limited | Other services | 2005 |
| Quality Management Software Limited | Information & communication | 1994 |
| Quality Travel Limited | Administrative & support | 2002 |
| Qualityfix Limited | Wholesale & retail | 1970 |
| Quantum Design UK and Ireland Limited | Wholesale & retail | 1976 |
| Quantum Knowledge Limited | Information & communication | 2005 |
| Quaoar Networks Ltd | Construction | 2002 |
| Quarry One Eleven Limited | Professional & scientific | 2004 |
| Queen's Road (Richmond) Management Company Limited | Real estate | 1961 |
| Queensmere Road Estate Management Company Limited | Real estate | 1997 |
| Queenwood Golf Club Limited | Arts & recreation | 1999 |
| Quest Philatelic Limited | Wholesale & retail | 2002 |
| Questa Consulting Limited | Administrative & support | 1999 |
| Quidnet Capital Ltd. | Real estate | 2010 |
| Quidnet Industrial Partners Limited | Financial services | 2018 |
| Quiet the Hive Ltd | Administrative & support | 2019 |
| Quinn & Beirne Limited | Real estate | 2006 |
| Quintessential Services Limited | Other services | 2002 |
| Quire Software Limited | Information & communication | 1999 |
| Qwickr Limited | Information & communication | 2006 |
| R & B Mangmali Limited | Financial services | 2016 |
| R & J Secretarial Services Limited | Professional & scientific | 1980 |
| R & S Mechanics Ltd | Wholesale & retail | 2019 |
| R a Bevan & Co Limited | Manufacturing | 2007 |
| R a R Supply Services Limited | | 1996 |
| R a Wild Meat Ltd | Wholesale & retail | 2020 |
| R B Services Gatwick Limited | Water & waste | 2005 |
| R J Noon Construction Limited | Construction | 2004 |
| R J Young & J a Young Limited Partnership | | 1997 |
| R L Crafter & Co Limited | Construction | 1993 |
| R P H Hire Services | | 2006 |
| R Q Investments Ltd | Real estate | 2024 |
| R S Purdey Roofing Contractors(Haslemere) Limited | Construction | 2003 |
| R W Pain Developments Limited | Construction | 2004 |
| R&B Munch Ltd | Wholesale & retail | 2025 |
| R. & D. Hitch Limited | Construction | 1975 |
| R. Bullen Auto Engineers Limited | Transport & logistics | 2003 |
| R.E.C. Glazing Ltd | Manufacturing | 2001 |
| R.Marus & Company Limited | Construction | 1930 |
| R.Miles & Son(Haslemere)Limited | Wholesale & retail | 1950 |
| R.P. Harrington (Building & Design) Limited | Construction | 2003 |
| R.S. and E. (Surbiton) Limited | | 1943 |
| R.S.G. Enterprises Limited | | 1990 |
| RAA Avalon Accounting Ltd | Professional & scientific | 2014 |
| RAA Gilroy & Brookes Accountants Ltd | Professional & scientific | 2013 |
| RAA Ward Mackenzie Ltd | Professional & scientific | 2014 |
| Rachman Properties Limited | Real estate | 2014 |