| P. M. Cohen Management Limited | Financial services | 2015 |
| P. S. Cohen Management Limited | Financial services | 2015 |
| P. S. Marsden (Precision Engineers) Limited | Manufacturing | 1971 |
| P. Tuohy Decorating Ltd | Construction | 2023 |
| P.A. Dyson Building & Roofing Limited | Construction | 2007 |
| P.A.M.S. Limited | Real estate | 1987 |
| P.C. Contractors Holdings Limited | Professional & scientific | 2008 |
| P.C. Johnson Limited | Wholesale & retail | 1998 |
| P.C.Station Limited | Wholesale & retail | 2004 |
| P.E.N. Building & Landscaping Limited | Construction | 2003 |
| P.Eng Services Ltd | Construction | 2006 |
| P.F. Collections Limited | Manufacturing | 1997 |
| P.F.Walsh & Sons Limited | Extraterritorial | 2012 |
| P.G. Nightingale Limited | Real estate | 1977 |
| P.J. Francis Limited | Professional & scientific | 2002 |
| P.Kapoor Consulting Ltd | Professional & scientific | 2021 |
| P.Kenna Comms Ltd | Other services | 2016 |
| P.M. Garratt Limited | Agriculture & fishing | 1974 |
| P.P.B Solutions Limited | Wholesale & retail | 2025 |
| P.R. Power Installations Limited | Information & communication | 1978 |
| P.R.S. Transport Services Limited | Transport & logistics | 2024 |
| P.S. Maltby Developments Limited | Construction | 2014 |
| P.S.A. Global Service Limited | Professional & scientific | 2025 |
| P.V.W Property Services Limited | Real estate | 2008 |
| P.Vesey Limited | Health & social care | 2011 |
| P1 Training and Development Ltd | Professional & scientific | 2007 |
| P25 Limited | Arts & recreation | 2025 |
| P3 IT Solutions Ltd | Information & communication | 2022 |
| P555 Limited | Professional & scientific | 2018 |
| PA Flight Training Ltd | Transport & logistics | 2023 |
| PA4U Ltd | Health & social care | 2013 |
| Paal Group Limited | Wholesale & retail | 2018 |
| Paal Holdings Limited | Real estate | 2018 |
| Paal Properties Limited | Real estate | 2018 |
| Pabitra Co Limited | Hospitality | 2024 |
| Pablo Nieto Orihuela Limited | Health & social care | 2014 |
| PAC Airconditioning Installations Limited | Construction | 2005 |
| PAC Joinery Limited | Construction | 2020 |
| Pace Fire & Security Limited | Administrative & support | 2023 |
| Pace Fire Consultancy Limited | Professional & scientific | 2023 |
| Pace Fire Ltd | Public administration | 2018 |
| Pace Hospitality Services Ltd | Information & communication | 2025 |
| Pace Motorworks Limited | Wholesale & retail | 2025 |
| Pace Solutions UK Ltd | Professional & scientific | 2009 |
| PACE42 Wellbeing CIC | Health & social care | 2026 |
| Paces Excel Ltd | Health & social care | 2014 |
| Pacesetters Healthcare Ltd | Administrative & support | 2022 |
| Pacesetters Supported Living Ltd | Administrative & support | 2024 |
| Paceteq UK Ltd | Information & communication | 2023 |
| Pacific Marlow Limited | Construction | 2024 |
| Pacific Property Management Ltd | Real estate | 2022 |
| Pacific Pulse Ltd | Wholesale & retail | 2020 |
| Pack Logic Ltd | Wholesale & retail | 2023 |
| Pack Property Investments Ltd | Real estate | 2020 |
| Pack Stuff Ltd | Wholesale & retail | 2020 |
| Packco Wholesales Limited | Wholesale & retail | 2025 |
| Packington Machinery Sales Limited | Wholesale & retail | 2022 |
| Packington Road Limited | Other services | 1990 |
| Pacmhsf Holdings Ltd | Financial services | 2024 |
| Pacsys Limited | Information & communication | 2000 |
| Pact Limited | Real estate | 1964 |
| Padala Properties Ltd | Real estate | 2022 |
| Padda Holdings Ltd | Real estate | 2023 |
| Paddington Group Ltd | Real estate | 2026 |
| Paddington Utilities Consulting Ltd | Information & communication | 2016 |
| PADDLESPORTB2B Limited | Wholesale & retail | 2025 |
| Paddock Property Developments Limited | Construction | 2019 |
| Paddock Property Ltd | Real estate | 2022 |
| Paddocks Rental Properties Ltd | Real estate | 2025 |
| Paddu@Isha Ltd | Health & social care | 2026 |
| Paddy Investments Ltd | Financial services | 2026 |
| Paddyfields Limited | Hospitality | 2004 |
| Paddy’S Pause Ltd | Administrative & support | 2020 |
| Padel Bros Limited | Wholesale & retail | 2025 |
| Padel Drive Ltd | Education | 2022 |
| Padel East Midlands Ltd. | Arts & recreation | 2022 |
| Padel ETC Management Co Ltd | Arts & recreation | 2025 |
| Padel MAX Ltd | Arts & recreation | 2026 |
| Padel Pulse Ltd | Arts & recreation | 2025 |
| Padel Warehouse 52 Ltd | Arts & recreation | 2025 |
| Padelplex Holdings Limited | Arts & recreation | 2025 |
| Padfox Limited | Health & social care | 2012 |
| Padgetts UK Limited | Construction | 2017 |
| Padmaravi Ltd | Information & communication | 2015 |
| Padoodle Ltd | Real estate | 2026 |
| Padori Village Limited | Wholesale & retail | 2025 |
| Padstore Limited | Administrative & support | 2017 |
| Padtate Properties Ltd | Real estate | 2024 |
| PAE Estates Ltd | Real estate | 2021 |
| Paedconsult Ltd | Health & social care | 2022 |
| PAF Clothing Ltd | Wholesale & retail | 2022 |
| Pagache Group Ltd | Professional & scientific | 2025 |
| Pagan Sword Limited | Arts & recreation | 2024 |
| Page 45 Limited | Wholesale & retail | 1994 |
| Page Jordan Surveyors Limited | Professional & scientific | 2020 |
| Page Kirk Financial Services LLP | | 2010 |
| Page Kirk LLP | | 2007 |
| Page S T Properties Ltd | Households | 2016 |
| Pagestar GB Limited | Manufacturing | 1996 |
| Pagett Close Management Company Limited | Households | 2010 |