| Prime Cars (Redditch) Limited | Transport & logistics | 2023 |
| Prime Cover Ltd | Financial services | 2022 |
| Prime Rentals Ltd | Real estate | 2019 |
| Prime Solutions (UK) Limited | Construction | 2003 |
| Primus Estate Agents Limited | Real estate | 2015 |
| Principal Security Limited | Administrative & support | 2010 |
| Print My Style Ltd | Manufacturing | 2024 |
| Priory Cafe Limited | Hospitality | 2015 |
| Prism Traffic Engineering Ltd | Manufacturing | 2009 |
| Pristine Groundworks Ltd | Construction | 2020 |
| PRJ Flooring Services Ltd | Wholesale & retail | 2019 |
| Pro Chef Cook School & Catering Limited | Hospitality | 2021 |
| Pro Fittest Ltd | Health & social care | 2023 |
| Pro Goods Ltd | Wholesale & retail | 2020 |
| Pro JIG Ltd | Professional & scientific | 2018 |
| Pro Property Maintenance Ltd | Construction | 2024 |
| Pro Stoves Limited | Other services | 2019 |
| Pro Test Panels Ltd | Manufacturing | 2005 |
| Pro Voltage Electrical Contractors Ltd | Construction | 2019 |
| Pro-White Services Ltd | Health & social care | 2023 |
| Procad Automotive Limited | Professional & scientific | 2002 |
| Prochaete Innovations Limited | Agriculture & fishing | 2013 |
| Prodexem Limited | Administrative & support | 2026 |
| Production Engineering Consultancy Ltd | Professional & scientific | 2022 |
| Professional & Private Chef Services Limited | Hospitality | 2018 |
| Professional Framing Company Limited(The) | Manufacturing | 1986 |
| Professional Investors Ltd | Real estate | 2018 |
| Profgear Ltd | Wholesale & retail | 2025 |
| Profin Protective Finishing Limited | Manufacturing | 2004 |
| Proglide Group Limited | Administrative & support | 2015 |
| Progressive Pet Solutions Ltd | Wholesale & retail | 2025 |
| Projax Interiors Limited | Construction | 2006 |
| Project 10 Management & Consulting Limited | Information & communication | 2017 |
| Project Construction Limited | Construction | 2022 |
| Project Helios Bidco Limited | Other services | 2026 |
| Project Helios Midco Limited | Other services | 2026 |
| Project Helios Topco Limited | Other services | 2026 |
| Project Nexus Ltd | Professional & scientific | 2025 |
| Project Taro Ltd | Information & communication | 2025 |
| Prominent GAS Limited | Construction | 2021 |
| Prontocalc Ltd | Information & communication | 2025 |
| Propak Box Limited | Administrative & support | 2011 |
| Properties by IDM Limited | Real estate | 2025 |
| Properties by PM Limited | Real estate | 2025 |
| Property Installations Limited | Construction | 2016 |
| Property Launch Ltd | Real estate | 2021 |
| Proren Ltd | Construction | 2018 |
| Protaform Holdings Limited | Financial services | 1996 |
| Protaform Springs & Pressings Limited | Manufacturing | 1983 |
| Protech Vehicle Repairs Limited | Wholesale & retail | 2025 |
| Protective Finishing Group Limited | Manufacturing | 1963 |
| Protex Group Limited | Manufacturing | 2002 |
| Proton Digital Limited | Information & communication | 2024 |
| Pryor Portfolio Management Limited | Financial services | 2006 |
| Pryor Property Ltd | Real estate | 2019 |
| PS Professional Transport Ltd | Transport & logistics | 2018 |
| PSR Fabrications Limited | Manufacturing | 2013 |
| PSR Sheet Metal Services Limited | Manufacturing | 2000 |
| Psychology First Limited | Health & social care | 2016 |
| Ptech UK Limited | Manufacturing | 2005 |
| Ptma Consultants Ltd | Administrative & support | 2024 |
| Ptma Ltd | Education | 2021 |
| Pukka Content Ltd | Professional & scientific | 2016 |
| PUR. Limited | Administrative & support | 2023 |
| Pure Advice LLP | | 2013 |
| Pure Gym Fitness Equipment Ltd | Manufacturing | 2014 |
| PURE1 Medical Limited | Health & social care | 2019 |
| Purnell PUB Company Ltd | Hospitality | 2026 |
| Purple Beret Ltd | Hospitality | 2021 |
| Purple Spider Learning CIC | Education | 2025 |
| Putex Ltd | Administrative & support | 2017 |
| PW Packaging Seals Ltd | Administrative & support | 2024 |
| PW Puzzles Ltd | Manufacturing | 2023 |
| PWA Builders Limited | Construction | 2007 |
| Pwnm Properties Ltd | Real estate | 2022 |
| Pxtreme Limited | Wholesale & retail | 2026 |
| Pyrotek Fireworks Limited | Arts & recreation | 2023 |
| Q Audio Limited | Information & communication | 2002 |
| Q Systems PK Limited | Wholesale & retail | 2022 |
| Q&S Foods Ltd | Hospitality | 2025 |
| Q-Par Angus Limited | Administrative & support | 2017 |
| QA Liftrucks Limited | Manufacturing | 2002 |
| Qara Business Solutions Limited | Professional & scientific | 2005 |
| QB Elite Commerce Ltd | Wholesale & retail | 2026 |
| QB Lift Services Ltd | Manufacturing | 2021 |
| QD Systems Limited | Other services | 2016 |
| Qlarity Software Ltd | Information & communication | 2016 |
| QRG Nexus Goods Ltd | Wholesale & retail | 2025 |
| QSP Holdings Limited | Professional & scientific | 2006 |
| QSP Limited | Extraterritorial | 2008 |
| QSP Training Limited | Administrative & support | 2004 |
| Qsynch Limited | Extraterritorial | 2017 |
| Qualdrive Limited | Education | 2023 |
| Qualify Sales Ltd | Professional & scientific | 2021 |
| Qualitech Consulting Limited | Professional & scientific | 2024 |
| Quality Homes (Selly Oak) Limited | Households | 2012 |
| Quality Residential & Social Housing Ltd | Real estate | 2025 |
| Quality Springs & Pressings Holdings Limited | Financial services | 2020 |
| Quality Springs & Pressings Limited | Manufacturing | 1941 |
| Quartz Property Family Partnership LLP | | 2021 |