| Overtowan Limited | Financial services | 2023 |
| Owen & Co (Accountants) Ltd | Professional & scientific | 2015 |
| Owen Binks Limited | Arts & recreation | 2026 |
| Owen Kelly Packaging Ltd | Extraterritorial | 2024 |
| Owen Organization Pensions Limited | Administrative & support | 1957 |
| Oxbow Training Services-Wm Limited | Administrative & support | 2005 |
| Oxford & Oriental Limited | Financial services | 2021 |
| Oxford Health System Reform Group Limited | Administrative & support | 2019 |
| Oxfordshire Venison Ltd | Manufacturing | 2024 |
| Ozbroz Ltd | Real estate | 2024 |
| OZC Limited | Transport & logistics | 2020 |
| P & a Francis Properties Limited | Real estate | 2022 |
| P & J Distribution (West Midlands) Ltd | Transport & logistics | 2005 |
| P a J Courier Services Ltd | Transport & logistics | 2023 |
| P a J Property Agency Limited | Real estate | 2017 |
| P B Training Services Ltd | Administrative & support | 2002 |
| P R Slater Designs Limited | Professional & scientific | 2014 |
| P W Composites Ltd | Manufacturing | 2023 |
| P W Utilities Services Ltd | Construction | 2025 |
| P.W. Financial Services Limited | Professional & scientific | 1979 |
| PAB Site Management Ltd. | Construction | 2014 |
| Pablo Projects Ltd | Manufacturing | 2025 |
| Pabon Hall International Trade Negotiators Limited | Professional & scientific | 2023 |
| Padel Luxe Limited | Wholesale & retail | 2025 |
| Paganel 514 Holdings Ltd | Financial services | 2025 |
| Paganel 514 Ltd | Real estate | 2025 |
| PAH Retail Ltd | Wholesale & retail | 2026 |
| Paikkomb Ltd | Administrative & support | 2019 |
| Pale Vision Ltd | Wholesale & retail | 2024 |
| Panainte Trans Ltd | Transport & logistics | 2016 |
| Panelling Direct Ltd | Construction | 2021 |
| Papa Pizza NO1 Ltd | Hospitality | 2019 |
| Paper King Limited | Wholesale & retail | 2018 |
| Parallel PI Limited | Construction | 2011 |
| Paramedic Expert Ltd | Professional & scientific | 2021 |
| Park Farm Shoot Limited | Arts & recreation | 2014 |
| Parker Ryan Logistics Ltd | Transport & logistics | 2020 |
| Parkstone Building & Management Ltd | Construction | 2025 |
| Parliament Square (Liverpool) Residences Ltd | Real estate | 2019 |
| Parlington Harry Limited | Financial services | 2024 |
| Parts ELF Limited | Wholesale & retail | 2022 |
| Party Mascot Hire Ltd | Wholesale & retail | 2023 |
| Pass With Confidence Driving School Ltd | Education | 2025 |
| Pathcreating Limited | Professional & scientific | 2008 |
| Patshull Park Leisure Ltd | Construction | 2025 |
| Paudel Food Ltd | Hospitality | 2025 |
| Paul Campbell's Karate Academy Limited | Arts & recreation | 2006 |
| Paul Jenkins Sculptures Limited | Manufacturing | 2016 |
| Paul Nicholson Limited | Arts & recreation | 2012 |
| Payroll Direct (Midlands) Limited | Professional & scientific | 2002 |
| Pbrb Holdings Limited | Professional & scientific | 2018 |
| PD PUB Company 2024 Ltd | Hospitality | 2024 |
| PDL Padel Limited | Education | 2026 |
| Peace Logistics Global Ltd | Transport & logistics | 2026 |
| Peachstone (Claverdon) Limited | Construction | 2022 |
| Peachstone New Homes Limited | Construction | 2020 |
| Peck Properties Ltd | Real estate | 2024 |
| Pedmore Brickwork Limited | Construction | 2020 |
| Pegasus Motoring Group Ltd | Wholesale & retail | 2024 |
| Pelam Investments Limited | Financial services | 2021 |
| Pelle Delle Ltd | Wholesale & retail | 2022 |
| Penllwyn Limited | Administrative & support | 2005 |
| Penn and Pearce Properties Limited | Real estate | 2021 |
| Penn Haulage (Midlands) Limited | Real estate | 1974 |
| Penn Industries Ltd | Wholesale & retail | 2020 |
| Penn Slitting Services Limited | Extraterritorial | 1991 |
| Penn Studio Limited | Information & communication | 2018 |
| Pens ALE Ltd | Wholesale & retail | 2023 |
| Pentriver Property Limited | Real estate | 2023 |
| Performance Manufacturing Limited | Extraterritorial | 2011 |
| Peristeria Contracting Ltd | Transport & logistics | 2016 |
| Peters & Guardian Limited | Real estate | 2020 |
| Petrichor Ventures Ltd | Information & communication | 2015 |
| Petrisor Delivery Ltd | Transport & logistics | 2026 |
| Pharma Excellence Ltd | Wholesale & retail | 2019 |
| Pharma First Ltd | Health & social care | 2014 |
| Pharma Mobility Limited | Wholesale & retail | 2012 |
| Philmjones Ltd | Professional & scientific | 2009 |
| Phoenix Kitchens and Bathrooms Limited | Manufacturing | 2016 |
| Phorzeid Ltd | Administrative & support | 2019 |
| Piercings by Geana Limited | Other services | 2021 |
| Pioneer Computing Limited | Information & communication | 2005 |
| PIPELINE360 UK Ltd | Information & communication | 2025 |
| Pipework Engineering Services Limited | Manufacturing | 1982 |
| Pirate Plastics Limited | Transport & logistics | 2020 |
| Pitchford Steelstock Limited | Manufacturing | 1960 |
| Pixapro Limited | Manufacturing | 2011 |
| Pixel Pearlfect Limited | Professional & scientific | 2025 |
| PJ Autocare Ltd | Wholesale & retail | 2023 |
| PJA Sets Limited | Information & communication | 2013 |
| PJI 212 Limited | Financial services | 2016 |
| PJJ Holdings Limited | Households | 2020 |
| PL Square Technologies Limited | Information & communication | 2022 |
| Plackers Ltd | Administrative & support | 2016 |
| Pland Estates Limited | Real estate | 2021 |
| Plastic Supplies Dudley Limited | Manufacturing | 2003 |
| Play Pound Profit Limited | Information & communication | 2024 |
| Plexus Research & Consulting Limited | Public administration | 2014 |
| Plug in Battery Ltd | Professional & scientific | 2026 |
| Plumb GAS & Heat Limited | Construction | 2003 |