| Orange Electrical Installations Ltd | Construction | 2023 |
| Orbitor (2010) Ltd | Arts & recreation | 2011 |
| Orchard Farm Developments Ltd | Construction | 2022 |
| Ordin Limited | Administrative & support | 2025 |
| Organise a Business Ltd | Wholesale & retail | 2011 |
| Orient Fish Shop Ltd | Hospitality | 2015 |
| Oriental Food Fusion Ltd | Hospitality | 2021 |
| Ormside Way Management Company Limited | Administrative & support | 2005 |
| Oronno Ltd | Hospitality | 2020 |
| Orrfc Trading Limited | Arts & recreation | 2016 |
| Osbornchapple Limited | Information & communication | 2015 |
| Oscarine Limited | Construction | 2022 |
| Osprey Energy Limited | Energy | 2015 |
| OTR Events Limited | Administrative & support | 2026 |
| Ottery Consulting Limited | Professional & scientific | 2013 |
| Ottevanger Milling Engineers Limited | Agriculture & fishing | 2021 |
| Outlander Investments Ltd | Financial services | 2020 |
| Outpost Search Limited | Administrative & support | 2017 |
| Oven Fresh Bakery Limited | Manufacturing | 2017 |
| Oxenden Consulting Limited | Professional & scientific | 2020 |
| Oxford Securities Limited | Real estate | 1998 |
| Oxip Investment Company Limited | Financial services | 2013 |
| Oxtonic Limited | Professional & scientific | 2014 |
| P Egglestone Ltd | Construction | 2019 |
| P Moktan Limited | Real estate | 2025 |
| P.M. Ironwork Ltd | Manufacturing | 2008 |
| P.Q.S. Cleaning Chemicals Limited | Transport & logistics | 2017 |
| P2M UK Limited | Construction | 2006 |
| P4P Capital Limited | Real estate | 2022 |
| Pace-Pm Ltd | Real estate | 2011 |
| Packaged Pump Solutions Limited | Wholesale & retail | 2014 |
| PAD Construct Limited | Construction | 2025 |
| Page Tax Consulting LLP | | 2010 |
| Paige Beckford OT Ltd | Professional & scientific | 2025 |
| Paintmark Decorating & Property Maintenance Ltd | Construction | 2019 |
| Palinbrook Limited | Professional & scientific | 2006 |
| Panacea I.T. Limited | Information & communication | 1997 |
| Panacea It-Av Ltd | Information & communication | 2012 |
| Panda Projects Surrey Ltd | Construction | 2025 |
| Pandorastocks Limited | Wholesale & retail | 2013 |
| Panoramba Ltd | Education | 2013 |
| Pargolla Investments Ltd | Financial services | 2025 |
| Park Force Solutions Ltd | Real estate | 2024 |
| Park Hall Residents Association Limited | Households | 1998 |
| Park West Limited | Real estate | 1986 |
| Parkes Running Ltd | Arts & recreation | 2019 |
| Parkhill Consulting Limited | Professional & scientific | 2013 |
| Parkside (Reigate) Limited | Administrative & support | 2009 |
| Parkview Clinic (Reigate) Limited | Health & social care | 2020 |
| Parma Procurement Ltd | Professional & scientific | 2018 |
| Parmar Medical Consulting Limited | Professional & scientific | 2014 |
| Part Five Limited | Professional & scientific | 2014 |
| Partnership Assurance Group Limited | Financial services | 2013 |
| Partnership Group Holdings Limited | Financial services | 2005 |
| Partnership Holdings Limited | Financial services | 2008 |
| Partnership Home Loans Limited | Financial services | 2004 |
| Partnership Life Assurance Company Limited | Financial services | 2005 |
| Partnership Services Limited | Administrative & support | 2005 |
| Paspv Limited | Professional & scientific | 2012 |
| Pasqua Vale Limited | Professional & scientific | 2021 |
| Patrick Maher Trading Limited | Wholesale & retail | 2021 |
| Patrick Staunton Design Ltd | Professional & scientific | 2024 |
| Paul Lawrence Design Ltd | Professional & scientific | 2016 |
| Paul Moran Consultancy Services Limited | Professional & scientific | 2018 |
| Pavel Kocins Ltd | Other services | 2019 |
| Pawlyn Financial Management Limited | Information & communication | 1998 |
| Paws Down Ltd | Other services | 2017 |
| Payingforcare Limited | Professional & scientific | 2011 |
| PC2 Property Ltd | Real estate | 2020 |
| Pcmark Ltd | Hospitality | 2019 |
| Pdf-Xchange Co Ltd | Information & communication | 2017 |
| Pdhp Ltd | Construction | 2025 |
| Peace and Prominence Ltd | Wholesale & retail | 2024 |
| Peak Marketing & Communication Services Ltd | Professional & scientific | 2009 |
| Peak Performance Reigate Ltd | Arts & recreation | 2026 |
| Pearlemi Ltd | Financial services | 2023 |
| Peel Hall Property Management Limited | Real estate | 2006 |
| Pendrigh Makin Limited | Professional & scientific | 2009 |
| Pendris Limited | Professional & scientific | 2008 |
| Penny Hamilton Interiors Ltd | Wholesale & retail | 2014 |
| Pension Asset Services Limited | Extraterritorial | 2007 |
| Pentagon Homes Ltd | Construction | 1997 |
| Pentrust Limited | Financial services | 2001 |
| PEP X Labs Ltd | Wholesale & retail | 2026 |
| Peppa X UK Ltd | Information & communication | 2023 |
| Peregrine Forysth Limited | Construction | 2026 |
| Perfectly Connected Ltd | Construction | 2026 |
| Performance Elite Coaching Limited | Arts & recreation | 2021 |
| Performance Elite Ltd | Arts & recreation | 2016 |
| Performance Fifteen Limited | Professional & scientific | 2015 |
| Perry Monroe Limited | Financial services | 2016 |
| Perry Power Limited | Real estate | 2013 |
| Pershore Powerplay Two Limited | Professional & scientific | 2021 |
| Peter Hall Housing Solutions Limited | Real estate | 2007 |
| Petra Oleum Limited | Wholesale & retail | 2023 |
| Petro Accountancy Ltd | Professional & scientific | 2019 |
| Petromoor Limited | Construction | 1993 |
| Phan Technology Ltd | Professional & scientific | 2021 |
| Pharma Complete Ltd | Wholesale & retail | 2022 |
| Pharma Healthcare Machinery Ltd | Wholesale & retail | 2017 |