| P&L Taylor Landscaping Ltd | Administrative & support | 2024 |
| P&L Transport Services Ltd | Transport & logistics | 2021 |
| P-L-E Property Services Ltd | Real estate | 2021 |
| P. Luli Building & Maintenance Limited | Construction | 2019 |
| P.A. Electrical Ltd. | Administrative & support | 1996 |
| P.R.P. & SON Developments Limited | Professional & scientific | 2005 |
| Pacey Design Ltd | Professional & scientific | 2024 |
| Pack Group Properties Ltd | Real estate | 2024 |
| Paddal Limited | Professional & scientific | 2017 |
| Paddock Road Services Limited | Extraterritorial | 1993 |
| Padelish Group Ltd. | Arts & recreation | 2026 |
| Padelo Ltd | Arts & recreation | 2025 |
| Padmate Properties Ltd | Households | 2025 |
| Padraig Solutions Limited | Administrative & support | 2014 |
| Page Building Services Ltd | Construction | 2020 |
| PAK Fresh Limited | Wholesale & retail | 2022 |
| PAK Kabul House Ltd | Wholesale & retail | 2024 |
| PAK Relocation (UK) Limited | Real estate | 2016 |
| Palette Trade Limited | Wholesale & retail | 2026 |
| Palmyra London Ltd | Wholesale & retail | 2025 |
| Paml Ltd | Transport & logistics | 2020 |
| Pamphlet Ltd | Real estate | 2020 |
| PAN Real Estate Ltd | Real estate | 2025 |
| Pana Engines Ltd | Wholesale & retail | 2024 |
| Panalysis Limited | Mining & quarrying | 2021 |
| Pancholi's Group Limited | Wholesale & retail | 2023 |
| Pandora CR Ltd | Transport & logistics | 2009 |
| PAO Transport Limited | Transport & logistics | 2024 |
| PAR Amour Retreats Ltd | Health & social care | 2024 |
| Parallel Mind Systems Ltd | Water & waste | 2025 |
| Param Double Glazing Ltd | Construction | 2020 |
| Parcel Butler Limited | Wholesale & retail | 2022 |
| Parcel for YOU Services Ltd | Transport & logistics | 2025 |
| Parker Property Maintenance Limited | Administrative & support | 2021 |
| Parkora Ltd | Real estate | 2026 |
| Parks Thurston Limited | Professional & scientific | 2019 |
| Parkview Trustees Limited | Households | 2006 |
| Parsley&Son Ltd | Transport & logistics | 2018 |
| Partega Ltd | Real estate | 2025 |
| Partis Properties Ltd | Real estate | 2024 |
| Party Monsters Limited | Other services | 2023 |
| Parwin Limited | Health & social care | 2018 |
| Pascal Trans Ltd | Transport & logistics | 2014 |
| Pascan Brickwork Services Ltd | Construction | 2021 |
| Pascu Building Services Limited | Construction | 2016 |
| Paser Limited | Transport & logistics | 2014 |
| Password Consultancy | Health & social care | 2021 |
| PAT and Sons Investments Ltd | Real estate | 2022 |
| Patched Products Ltd | Wholesale & retail | 2025 |
| Patel a Builder Ltd | Construction | 2025 |
| Path Ahead Ltd | Health & social care | 2025 |
| Patient Centred Care Limited | Health & social care | 2015 |
| Patient First (Grays) Limited | Health & social care | 2008 |
| Patlil Limited | Transport & logistics | 2014 |
| Patmo Solutions Limited | Real estate | 2025 |
| Patrick Lusty Limited | Health & social care | 2010 |
| Patrickvibe UK Ltd | Wholesale & retail | 2025 |
| Patviv Ltd | Transport & logistics | 2025 |
| Paul Butterfill & Associates Limited | Administrative & support | 2021 |
| Paul Consolidated Ltd | Education | 2021 |
| Paul GTI Ltd | Transport & logistics | 2016 |
| Paul J Smith Contracts Limited | Construction | 2019 |
| Paul Jones Electrical Services Limited | Construction | 2025 |
| Paul Smith Properties Ltd | Real estate | 2019 |
| Paul Taylor Properties Ltd | Construction | 2017 |
| Pauline Health Care Services Ltd | Health & social care | 2019 |
| Pave Right Essex Ltd | Administrative & support | 2022 |
| Paxion Ltd | Wholesale & retail | 2025 |
| PBA Signs & Graphics UK Ltd | Manufacturing | 2009 |
| PBL Homes Ltd | Real estate | 2018 |
| PCM House Ltd | Real estate | 2025 |
| Pdnd Ltd | Administrative & support | 2015 |
| PDR Property Ltd | Real estate | 2018 |
| PE Trade Ltd | Manufacturing | 2026 |
| Peace Housing Limited | Real estate | 2025 |
| Peaceful Serenity Ltd | Health & social care | 2021 |
| Peak Maintenance Limited | Construction | 2004 |
| Peak Resolve Ltd | Information & communication | 2016 |
| Peakpointretail Ltd | Wholesale & retail | 2026 |
| Pear&Pear Ltd | Wholesale & retail | 2022 |
| Pears Capital Enterprises Limited | Real estate | 2016 |
| Pearson Steelwork and Engineering Limited | Construction | 2016 |
| Pedro Pedro Limited | Other services | 2023 |
| Peduco Limited | Information & communication | 2011 |
| Peek Engineering Ltd | Construction | 2016 |
| Peerless Lift Services Limited | Manufacturing | 2022 |
| Pefaanch Limited | Health & social care | 2020 |
| Pegasus Palmerians Rugby Football Club Limited | Arts & recreation | 2016 |
| Pencil Carpentry Ltd | Construction | 2025 |
| Pencil Pots Day Nursery Ltd | Education | 2011 |
| Pendley House Limited | Wholesale & retail | 2023 |
| Pendulum Rise Limited | Professional & scientific | 2022 |
| Peniel, Alem & Partners Ltd | Manufacturing | 2025 |
| Peppers & Pans Ltd | Hospitality | 2023 |
| Perfafit Ltd | Real estate | 2025 |
| Perfect Performance Ltd | Wholesale & retail | 2019 |
| Perfect Services Ltd | Transport & logistics | 2008 |
| Performance a Fit Limited | Construction | 2020 |
| Periluxe Limited | Wholesale & retail | 2020 |
| Peter Pierre Limited | Health & social care | 2010 |