| Osborne Audio Visual Limited | Professional & scientific | 2022 |
| Osborne Services Limited | Professional & scientific | 2024 |
| Oshi Lasertag Ltd | Arts & recreation | 2026 |
| Osmond Group Services Limited | Real estate | 2024 |
| Osmonds Transport and Planing Limited | Construction | 2002 |
| Otas Health Care Ltd | Manufacturing | 2024 |
| Otun House Limited | Information & communication | 2026 |
| OUR Move Ltd | Real estate | 2014 |
| Outcome Consulting Limited | Health & social care | 1999 |
| Outlook Loft Construction Limited | Construction | 2022 |
| Outlook Loft Conversions Limited | Construction | 2000 |
| Outram Property Investments Limited | Real estate | 2023 |
| Overbury Developments & Maintenance Ltd | Construction | 2014 |
| Overbury Estates (Kent) Limited | Real estate | 2011 |
| Overbury Estates Freehold Limited | Real estate | 2012 |
| Overbury Estates Holdings Limited | Financial services | 2018 |
| Overbury Estates Portfolio Ltd | Real estate | 2015 |
| Own Your Moments Limited | Professional & scientific | 2021 |
| OWS Chicken Ltd | Hospitality | 2024 |
| Owusu MAY Care Ltd | Health & social care | 2022 |
| Oxford & Cambridge Finance Limited | Financial services | 1999 |
| Oxford Multi Spectral Limited | Manufacturing | 2011 |
| Oyin's Kitchen Ltd | Hospitality | 2022 |
| OZI UM Properties Ltd | Real estate | 2023 |
| Ozone Unisex Salon Ltd | Other services | 2020 |
| P & B Construction (SE) Limited | Construction | 2026 |
| P & L Gardner Properties Ltd | Real estate | 2025 |
| P & S Builders South East Ltd | Construction | 2018 |
| P & S Panchal Ltd | Wholesale & retail | 2020 |
| P a Thomas Ltd | Extraterritorial | 2021 |
| P C I Limited | Manufacturing | 2002 |
| P H Contracts (2010) Limited | Professional & scientific | 2010 |
| P Judd Electrical Limited | Construction | 2016 |
| P&B Property Solutions Limited | Real estate | 2023 |
| P&J Auto Services Ltd | Wholesale & retail | 2025 |
| P&J Investment Property (Kent) Ltd | Real estate | 2021 |
| P&K Panchal Properties Ltd | Real estate | 2025 |
| P.J.A. Control Services Limited | Construction | 2012 |
| P.R. Thomas Limited | Construction | 2004 |
| P4A Properties Ltd | Real estate | 2025 |
| PAA Egyir Building Services Ltd | Construction | 2012 |
| Pace Estates Ltd | Real estate | 2025 |
| Pace Mechanical Solutions Ltd | Construction | 2016 |
| Pack & Play Arena Ltd | Wholesale & retail | 2024 |
| Pack Detailers Ltd | Wholesale & retail | 2025 |
| Padapurackal Ltd | Health & social care | 2022 |
| PAF Logistics Limited | Transport & logistics | 2019 |
| Paintline Projects Ltd | Construction | 2025 |
| Pajocc Ltd | Real estate | 2024 |
| PAK Fook Kwong Food Company Limited | Manufacturing | 2016 |
| PAL International Group Ltd | Wholesale & retail | 2022 |
| Palantti Limited | Professional & scientific | 2013 |
| Palcare Solutions Ltd | Health & social care | 2025 |
| Palmland Limited | Wholesale & retail | 2022 |
| Panache Innovations Enterprise Limited | Wholesale & retail | 2023 |
| Panaser Global Limited | Real estate | 2015 |
| Panelcraft Restoration Ltd | Manufacturing | 2022 |
| Panicbarn Limited | Information & communication | 2013 |
| Paragon Financial Solutions Limited | Financial services | 2025 |
| Paragon Kent Ltd | Health & social care | 2011 |
| Paragon Property Creations Ltd | Construction | 2014 |
| Parchment Contracts Limited | Administrative & support | 2014 |
| Park Farm Rentals Ltd | Real estate | 2025 |
| Parkview Reserve Ltd | Financial services | 2023 |
| Parkview Wealth Management Ltd | Financial services | 2013 |
| Parkwood Electrical Limited | Manufacturing | 2016 |
| Parkwood Green Cafe Limited | Hospitality | 2015 |
| Parkwood Order Limited | Hospitality | 2024 |
| Parkwood Paws Ltd | Other services | 2024 |
| Parmar Land & Properties Limited | Construction | 2025 |
| Parris Storeuk Ltd | Wholesale & retail | 2024 |
| Partnership Security Limited | Administrative & support | 2000 |
| Party Decor Hire Ltd | Administrative & support | 2023 |
| Pasricha Limited | Real estate | 2022 |
| Pass Code Driving School Limited | Education | 2011 |
| Pass the Baton (PTB) CIC | Other services | 2025 |
| Pasta Rasta Ltd | Hospitality | 2020 |
| Patchwork Craftsmens Ltd | Construction | 2025 |
| Paterson Estate Agents Limited | Real estate | 2023 |
| Patnat Solutions Limited | Health & social care | 2014 |
| Patterson Niles Ltd | Health & social care | 2019 |
| Paul Gough Design Ltd | Manufacturing | 2019 |
| Paul Mabe Limited | Construction | 2011 |
| Paul Newman Enterprises Limited | Hospitality | 2011 |
| PB Kebab Ltd | Hospitality | 2023 |
| PB Real Estate Ltd | Real estate | 2024 |
| Pdmtm IT Services Ltd | Information & communication | 2015 |
| PDP Solutions Ltd | Real estate | 2012 |
| PDS Engineering Consultants Ltd | Professional & scientific | 2010 |
| Peak Consultancy Services Limited | Professional & scientific | 2019 |
| Pearce Quality Limited | Other services | 2011 |
| Pedea Management Limited | Information & communication | 2010 |
| Peem Advertising Ltd | Construction | 2021 |
| Peking Chef 177 Limited | Hospitality | 2025 |
| Pelgo Limited | Wholesale & retail | 2022 |
| Pembroke & Kingsguard Trust Corporation Limited | Professional & scientific | 2021 |
| Pembroke Will Writers Limited | Administrative & support | 2004 |
| Penenden Deli Limited | Hospitality | 2014 |
| Peninsula Projects Limited | Construction | 2022 |
| Penticost Limited | Health & social care | 2018 |