| Polychem Limited | Manufacturing | 1980 |
| Popup Play Ltd | Wholesale & retail | 2011 |
| Prathosh Ltd | Wholesale & retail | 2022 |
| Prathujah Limited | Wholesale & retail | 2026 |
| Praxi Medica Ltd | Professional & scientific | 2014 |
| PRC Estates Ltd | Information & communication | 2022 |
| Precision Controls & Automation Limited | Wholesale & retail | 2003 |
| Precision Geophysics Limited | Professional & scientific | 2008 |
| Precision Investment Limited | Real estate | 2017 |
| Prem Nominees Limited | Administrative & support | 2003 |
| Premier Business Consultants Limited | Professional & scientific | 2016 |
| Premiere Properties London Ltd | Real estate | 2021 |
| Price Product Consultancy Limited | Administrative & support | 2015 |
| Primestone Collective Holdings Ltd | Real estate | 2026 |
| Primo Financial Solutions Ltd | Financial services | 2016 |
| Prisa Holding Ltd | Financial services | 2024 |
| Prisa Property Ltd | Real estate | 2015 |
| Privilege Luxury Travel Ltd | Transport & logistics | 2024 |
| Pro Build Scape Ltd | Construction | 2010 |
| Pro Lash Company Limited | Other services | 2018 |
| Proactive Accounting (South East) Limited | Professional & scientific | 2010 |
| Prodec (Southern Region) Ltd | Education | 2003 |
| Prodigy IQ Ltd | Information & communication | 2017 |
| Profil UK Limited | Wholesale & retail | 2000 |
| Profit X Trading Limited | Information & communication | 2015 |
| Project:Asm CIC | Education | 2025 |
| Propalytics Ltd | Information & communication | 2017 |
| Propcare Limited | Real estate | 2024 |
| Property a Limited | Real estate | 2020 |
| Property League Ltd. | Professional & scientific | 2011 |
| Propmatics Limited | Real estate | 2015 |
| Prost UK Limited | Hospitality | 2026 |
| Prosure Properties Limited | Real estate | 2025 |
| Protea Refurbishment Ltd | Construction | 2023 |
| Provideohealthcare Limited | Health & social care | 2025 |
| PS Smart Technologies Limited | Construction | 2022 |
| PSB Developments Limited | Real estate | 2024 |
| PSC Trading Ltd | Arts & recreation | 2015 |
| PSL Finance Limited | Financial services | 1998 |
| Ptljc Investment Ltd | Real estate | 2024 |
| Purley & Kenley Churches Together Food Hub | Hospitality | 2013 |
| Purley 1967 Limited | Extraterritorial | 2014 |
| Purley Autos Center Ltd | Wholesale & retail | 2021 |
| Purley Baptist Church | Other services | 2009 |
| Purley Boxing Club Ltd | Arts & recreation | 2016 |
| Purley Business Improvement District Community Interest Company | Other services | 2015 |
| Purley Cattery Limited | Other services | 2017 |
| Purley Dental Practice Limited | Health & social care | 2006 |
| Purley Fortune House Limited | Other services | 2021 |
| Purley Management Company Ltd | Real estate | 2011 |
| Purley New Construction Ltd | Construction | 2025 |
| Purley Point Limited | Real estate | 2008 |
| Purley Roofing Ltd | Construction | 2024 |
| Purley Tops Ltd | Hospitality | 2025 |
| Purple Ridge Holdings Ltd | Real estate | 2025 |
| Purtocone Ltd | Wholesale & retail | 2009 |
| Pushing Pressure Ltd | Administrative & support | 2022 |
| PUT IT in Ltd | Wholesale & retail | 2025 |
| Pypepo Consulting Ltd | Information & communication | 2024 |
| Q C Couriers Limited | Transport & logistics | 2025 |
| Q3P Ltd | Education | 2015 |
| Qbic Space Ltd | Construction | 2025 |
| Qdos Computer Consultants Limited | Information & communication | 2000 |
| Qualo Properties & Investments Ltd | Real estate | 2022 |
| Quantax UK Limited | Administrative & support | 2012 |
| Quantech London Limited | Information & communication | 2021 |
| Quantum Core Limited | Real estate | 2022 |
| Quantum Management Solutions Limited | Professional & scientific | 2008 |
| Quantum U.K Ltd | Other services | 2023 |
| Questback UK Limited | Other services | 2021 |
| R & T Developers Ltd | Construction | 2020 |
| R J Morris Electrical Ltd | Construction | 2020 |
| Raad Enterprise Ltd | Real estate | 2025 |
| Rabsai Consulting Limited | Professional & scientific | 2025 |
| Radha Shyamsundar UK Limited | Real estate | 2024 |
| Radhika Estates Ltd | Households | 2025 |
| Rahm Limited | Real estate | 2008 |
| Rainbow After School Club Limited | Education | 2011 |
| Rainbow Stars Day Nursery Ltd | Health & social care | 2021 |
| Raise Your EI Limited | Professional & scientific | 2023 |
| RAJ & SON Estates Ltd | Real estate | 2018 |
| Raja Locum Services Ltd | Health & social care | 2014 |
| RAK Management Consulting Ltd | Professional & scientific | 2024 |
| Rakk Limited | Real estate | 2010 |
| RAM Kamat Limited | Health & social care | 2014 |
| Ramova Ltd | Construction | 2024 |
| Randall & SON Heavy Vehicle Engineers Ltd | Wholesale & retail | 2026 |
| Raven ENG Ltd | Professional & scientific | 2025 |
| Ravensdale Services Limited | Health & social care | 2019 |
| Ravporia Limited | Wholesale & retail | 2025 |
| Rayan Chicken Ltd | Hospitality | 2025 |
| Rayan DRY Cleaners Ltd | Other services | 2024 |
| Raza Property Enterprises Ltd | Real estate | 2024 |
| RBR Consultants Private Limited | Information & communication | 2017 |
| RC Visual Effects Ltd | Extraterritorial | 2023 |
| Rc&B Consultancy Ltd | Professional & scientific | 2022 |
| RDD Hospitality Limited | Professional & scientific | 2024 |
| Reai Movement and Meditation Studio Ltd | Extraterritorial | 2024 |
| Realm Residents Ltd | Households | 2024 |
| Recreateuk CIC | Professional & scientific | 2025 |