| Percys Baking UK Ltd | Manufacturing | 2017 |
| Perigion Ltd | Information & communication | 2016 |
| Peritas Consulting LLP | | 2026 |
| Personalised Provision Ltd | Education | 2025 |
| Petro-Legal Limited | Mining & quarrying | 2012 |
| PHA Property Investment Company Limited | Real estate | 2020 |
| Phil Hickman Limited | Construction | 2013 |
| Phillipson Moss Limited | Real estate | 1990 |
| Picture Palace Films Limited | Information & communication | 1978 |
| Pike Enterprises (Property) Limited | Real estate | 1983 |
| Pilates UK Limited | Education | 2004 |
| Pilgrim Publishing Ltd | Information & communication | 2021 |
| Pilgrims Way Properties Limited | Households | 2019 |
| Plaintrack Limited | Professional & scientific | 2002 |
| Plan Labour Limited | Administrative & support | 2006 |
| Plant Based Pantry Ltd | Wholesale & retail | 2023 |
| PLAY4UKRAINE Limited | Wholesale & retail | 2023 |
| Playmake Ltd | Arts & recreation | 2025 |
| Plow Limited | Manufacturing | 2016 |
| Plug IT & Plunge IT Limited | Construction | 2025 |
| PN Ventures Limited | Households | 2022 |
| Polgard Engineers Limited | Professional & scientific | 2018 |
| Polgard Planning Limited | Construction | 1978 |
| Polishedbyissy Ltd | Other services | 2026 |
| Pomona & Ceres Limited | Manufacturing | 2019 |
| Poppri Ltd | Wholesale & retail | 2015 |
| Porter Brook ATS Limited | Professional & scientific | 2019 |
| Power Financial Management Ltd | Financial services | 2021 |
| Prabs Wignarajah Creative Ltd | Real estate | 2025 |
| Precious Alliance Holdings Limited | Financial services | 2015 |
| Precious Alliance Limited | Professional & scientific | 2013 |
| Premier Tyre Sutton Limited | Wholesale & retail | 2015 |
| Prestige LG Ltd | Other services | 2024 |
| Presto Nursing Limited | Administrative & support | 2020 |
| Prime Removals Ltd | Transport & logistics | 2014 |
| Principles Consult Ltd | Professional & scientific | 2021 |
| Pro-Fit Install Ltd | Construction | 2017 |
| Professional Financial Consultants (Purley) Ltd. | Extraterritorial | 1981 |
| Professional Financial Consultants Limited | Professional & scientific | 1989 |
| Professional Plumbing and Heating Services Limited | Construction | 2023 |
| Promotion Tech Limited | Information & communication | 2020 |
| Property Record Ltd | Information & communication | 2026 |
| Prosper and Enterprise Limited | Health & social care | 2018 |
| Protein Bites Limited | Hospitality | 2024 |
| Ps&J Services Limited | Professional & scientific | 2018 |
| Pulsar Pro-Active Services Limited | Professional & scientific | 1994 |
| Pure Learning Limited | Education | 2013 |
| Purple HAT Cyber Advisory Limited | Professional & scientific | 2021 |
| Purwell Properties Ltd | Real estate | 2018 |
| PVL SPV 1 Limited | Professional & scientific | 2018 |
| PZ International Ltd | Professional & scientific | 2022 |
| QAP Ltd | Real estate | 2017 |
| Quartz Associates Limited | Other services | 2015 |
| R & J Structural Solutions Limited | Professional & scientific | 2005 |
| R J Thompson Project Services Limited | Professional & scientific | 2018 |
| R&W Property Consultants Limited | Real estate | 2013 |
| R.W Hair Ltd | Other services | 2024 |
| Racing Shadow Ltd | Information & communication | 2017 |
| Random Bytes Limited | Information & communication | 2013 |
| Rapid Development Group Ltd | Real estate | 2020 |
| Rare Chromosome Disorder Support Group | Other services | 2005 |
| Ravenhawk Associates Limited | Administrative & support | 2011 |
| Raymount Limited | Real estate | 1984 |
| READY2WEB Limited | Information & communication | 2003 |
| Readyres Limited | Real estate | 2019 |
| Reavley Limited | Professional & scientific | 2023 |
| Recoverable Holdings Company Ltd | Financial services | 2025 |
| Recoverable Solutions Limited | Administrative & support | 2021 |
| Red HAT Graphics Ltd | Manufacturing | 2012 |
| Red Hatch Limited | Real estate | 2017 |
| Red Willow Estates Ltd | Real estate | 2021 |
| Redbox Consultancy Limited | Professional & scientific | 2016 |
| Redorwhite Limited | Wholesale & retail | 1999 |
| Regen-Uk Holdings Limited | Construction | 2020 |
| Regen-Uk International Limited | Construction | 2021 |
| Regency Recycle Ltd | Water & waste | 2017 |
| Regenerative Community Ltd | Agriculture & fishing | 2023 |
| Remonta Limited | Wholesale & retail | 2020 |
| Remoteplatforms Ltd | Information & communication | 2019 |
| Resc Services Ltd | Administrative & support | 1982 |
| Reset Marketing Limited | Information & communication | 2023 |
| Resolls Beautiful Gift Limited | Wholesale & retail | 2010 |
| Reynolds Labs Ltd | Information & communication | 2026 |
| RHO Sigma Ltd | Professional & scientific | 2021 |
| Rhodes Pickering Ltd | Construction | 2025 |
| Rich Stevens Editing Ltd | Information & communication | 2022 |
| Richard Bowman Consulting Ltd | Health & social care | 2017 |
| Richmans Associates Ltd | Real estate | 2016 |
| Ridlands Grove Management Limited | Households | 2009 |
| Rkb-Futureeducation Ltd | Education | 2025 |
| Rkle Properties Ltd | Real estate | 2024 |
| RLH Consulting Ltd | Professional & scientific | 2017 |
| RLK Surrey Advisory Ltd | Real estate | 2021 |
| ROB Hoekstra Limited | Arts & recreation | 2010 |
| Robinson Properties Alloway Limited | Households | 2021 |
| Rock Isle Property Limited | Real estate | 1996 |
| Rockfield Mount Management Company Limited | Professional & scientific | 1994 |
| Roof Test Consultancy Ltd | Construction | 2012 |
| Rosewood Builders Limited | Construction | 2006 |
| Rosewood Design and Construction Limited | Construction | 2012 |