| Phyto Pharma Limited | Manufacturing | 2016 |
| Piatra Limited | Wholesale & retail | 2024 |
| Pierce Engineering Consultancy Limited | Construction | 2016 |
| Pink Lotus Enterprise Limited | Construction | 2024 |
| Pinnacle MEP Limited | Construction | 2019 |
| Pinnacle Pvcu Systems Limited | Construction | 2013 |
| Pinpoint Residential Limited | Real estate | 2018 |
| Pinpoint Resourcing Limited | Administrative & support | 2017 |
| Pinverse Ltd | Information & communication | 2021 |
| Pishon Gold Ltd | Professional & scientific | 2010 |
| Pixelpot Ltd | Arts & recreation | 2012 |
| Pizza and Kebabish House Ltd | Hospitality | 2026 |
| PJ Construction (Bromley) Limited | Construction | 2011 |
| Placefield Ltd | Professional & scientific | 2012 |
| Planet Coconut Limited | Manufacturing | 2011 |
| Platinum Services Ltd | Agriculture & fishing | 2025 |
| Platinum Star Properties Limited | Real estate | 2016 |
| Plug-In Marketing Limited | Professional & scientific | 2024 |
| Plumbeze Limited | Construction | 2006 |
| Plus Fore Developments Limited | Arts & recreation | 1993 |
| Pocket Money PAL Ltd | Education | 2026 |
| Podium Insurance Brokers Ltd | Financial services | 2024 |
| Polaris Worldwide Limited | Other services | 2026 |
| Policy Property Services Ltd | Construction | 2018 |
| Pollux NW Limited | Real estate | 2024 |
| Polly’S Pet Care Services Ltd | Agriculture & fishing | 2024 |
| Porcupine Communications Ltd | Professional & scientific | 2019 |
| Postgrade Limited | Professional & scientific | 1978 |
| Poura Ltd | Professional & scientific | 2017 |
| Powerfull Ltd | Construction | 2017 |
| Powers of Attorney Limited | Other services | 2025 |
| PR Food Services Ltd | Hospitality | 2024 |
| Praefectus Financial Consultants Ltd | Professional & scientific | 2021 |
| Prebe Ltd | Financial services | 2021 |
| Precious Metals & Kettles Ltd | Other services | 2025 |
| Precision Dialogue Limited | Health & social care | 2001 |
| Premium Wise Insurance Brokers Limited | Financial services | 2009 |
| Prestige Motorcycles Limited | Real estate | 1996 |
| Pretium Consulting Ltd. | Professional & scientific | 2014 |
| Pretium Synergy Ltd. | Construction | 2021 |
| Pretty Blush Co Ltd | Wholesale & retail | 2026 |
| Primal Build Ltd | Real estate | 2021 |
| Primal Ductwork Ltd | Construction | 2017 |
| Print Call Limited | Manufacturing | 2013 |
| Priory Court Management Ltd | Households | 2015 |
| Pristine Building Maintenance Limited | Construction | 2023 |
| Pro Fintech Ltd | Information & communication | 2015 |
| Process Benchmarking Holdings Ltd | Professional & scientific | 2018 |
| Process Benchmarking Ltd | Professional & scientific | 1994 |
| Process Benchmarking Trustees Ltd | Professional & scientific | 2023 |
| Prodigy Media Limited | Professional & scientific | 2005 |
| Professional Results Limited | Real estate | 2017 |
| Progress Alpha Limited | Wholesale & retail | 2017 |
| Progression Finance Limited | Administrative & support | 2014 |
| Project Kainos Limited | Agriculture & fishing | 2025 |
| Project Ltd | Construction | 2009 |
| Promptforge Limited | Information & communication | 2026 |
| Property FIX 24/7 Limited | Administrative & support | 2022 |
| Property Path Investments Limited | Real estate | 2024 |
| Property Wealth Partners Ltd | Real estate | 2017 |
| Proteus Shipping Limited | Transport & logistics | 2026 |
| Proton Financial Limited | Professional & scientific | 2022 |
| PS & J Properties Ltd | Real estate | 2018 |
| Pulse Gear Ltd | Wholesale & retail | 2023 |
| Pure Fitness UK Ltd | Arts & recreation | 2021 |
| Purespark Cleaning Ltd | Administrative & support | 2025 |
| Purple Robe Ltd | Construction | 2019 |
| Pursuit of Growth Limited | Education | 2019 |
| Push Life Limited | Professional & scientific | 2013 |
| PWW Group Limited | Professional & scientific | 2012 |
| Pyramid Pharma 6 Ltd | Wholesale & retail | 2021 |
| QB Solutions Ltd | Information & communication | 2011 |
| Qrescendo UK Ltd | Financial services | 2025 |
| Quadcore Ltd | Households | 2015 |
| Quaggy Ltd | Other services | 2026 |
| Quantech Consultancy Limited | Professional & scientific | 2015 |
| Quantum Theatre Limited | Arts & recreation | 2015 |
| Quantumtek Ltd | Information & communication | 2024 |
| Quattordici Ltd | Hospitality | 2017 |
| Quee Property Limited | Real estate | 2025 |
| Quiet ARC Ltd | Administrative & support | 2024 |
| Quill Advisory Ltd | Professional & scientific | 2023 |
| Quince Gardens Ltd | Administrative & support | 2020 |
| Quinn Digital Assets Management Ltd | Financial services | 2012 |
| R & R Plumbing & Heating Limited | Construction | 2005 |
| R&O Salvageworks Limited | Wholesale & retail | 2021 |
| R&S Sparks Limited | Construction | 2014 |
| R.A. Burke Holdings Ltd | Real estate | 2015 |
| RA Construction Consultants Limited | Construction | 2018 |
| Raddon Advisory Limited | Professional & scientific | 2022 |
| Radha-Mohan Investments (UK) Limited | Real estate | 2023 |
| Raffles Luxe Ltd | Professional & scientific | 2025 |
| Raggleswood Residents Association Limited | Households | 1993 |
| Rainbow Tree Partners LLP | | 2011 |
| Rama UK Builders Ltd | Construction | 2025 |
| Ramas Daycare Limited | Health & social care | 2024 |
| Range Tech Solutions Limited | Wholesale & retail | 2025 |
| Ravensbourne Park Management Company Limited(The) | Real estate | 1980 |
| RB Chapel Boutique Ltd | Other services | 2025 |
| RB Hotels (Marford) Limited | Hospitality | 2019 |