| Paylat Ltd | Administrative & support | 2024 |
| Paytech Portal Ltd | Administrative & support | 2022 |
| PBD Drainage Limited | Construction | 2022 |
| PBD Electrical Limited | Construction | 2024 |
| PBD Group Holdings Limited | Construction | 2022 |
| PBD Leak Detection Limited | Construction | 2024 |
| PBD Plumbing Limited | Construction | 2019 |
| PBD Property Development Limited | Real estate | 2023 |
| Pbss Group UK Limited | Construction | 2023 |
| PCI Intelligence Limited | Administrative & support | 2024 |
| Pcmgbs Limited | Information & communication | 2011 |
| PDD Building 87 Ltd | Construction | 2018 |
| PDJ Outsourcing Ltd | Information & communication | 2023 |
| PDP 2 Ltd | Real estate | 2023 |
| PDS Scaffolding Ltd | Manufacturing | 2021 |
| Peaceful Care and Services Limited | Health & social care | 2020 |
| Peacock Court Limited | Households | 1995 |
| Peak Realty UK Ltd | Real estate | 2020 |
| Pear Tree Farm Services & Supplies Ltd | Other services | 2023 |
| Pearco Ltd | Real estate | 2025 |
| Pearl Fabric Limited | Wholesale & retail | 2025 |
| Pearl Group Property Management Ltd | Real estate | 2025 |
| Pearl Nexus UK Ltd | Wholesale & retail | 2020 |
| Pearl Socials Ltd | Professional & scientific | 2023 |
| Pearly Property Ltd | Real estate | 2021 |
| Pears Properties Limited | Real estate | 2012 |
| Pecan Properties Ltd | Real estate | 2017 |
| Peers to Go Ltd | Administrative & support | 2023 |
| Peertutor Ltd | Education | 2025 |
| PEG Store Ltd | Wholesale & retail | 2018 |
| Pegasus Operations Limited | Administrative & support | 2025 |
| Pehlivan Logistics & Trading Ltd | Transport & logistics | 2019 |
| Pelegrin Properties Ltd | Real estate | 2024 |
| Pemberton Bear Limited | Financial services | 2023 |
| Pemberton Bear Restaurants Limited | Hospitality | 2022 |
| Pemberton Corporate Finance Limited | Financial services | 2019 |
| Pemberton Daycare Ltd | Professional & scientific | 2015 |
| Pemberton Group Services Limited | Administrative & support | 2015 |
| Pemberton Leisure Holdings LLP | | 2017 |
| Pemmtec Ltd | Construction | 2025 |
| Penaf Ports Environmental Network-Africa CIC | Professional & scientific | 2025 |
| Pendulus Limited | Wholesale & retail | 2023 |
| Penkova Ltd | Information & communication | 2023 |
| Pennacchione Holdings Ltd | Financial services | 2016 |
| Penriyn Properties Ltd | Real estate | 2024 |
| Penwright Supply Limited | Construction | 1993 |
| People and Parker Limited | Professional & scientific | 2023 |
| People Cave Limited | Professional & scientific | 2024 |
| People's Property Solutions Ltd | Real estate | 2016 |
| Pepa Tiling Limited | Construction | 2026 |
| Peposhi Clothing Ltd | Wholesale & retail | 2019 |
| Pera & Partners Legal Consultancy Ltd | Professional & scientific | 2023 |
| Perc Courier Services Ltd | Transport & logistics | 2025 |
| Percy Gardens Management Services Limited | Households | 2002 |
| Percyp Capital Ltd | Financial services | 2026 |
| Perfect Administration Ltd | Real estate | 2025 |
| Perfect Angels Property Ltd | Real estate | 2024 |
| Perfect Cato Limited | Professional & scientific | 2017 |
| Perfect Finish Travel Services Ltd | Administrative & support | 2023 |
| Perfect Nails Bar Limited | Other services | 2020 |
| Perfected Nails & Beauty Limited | Other services | 2016 |
| Perfectstay Travel Limited | Administrative & support | 2018 |
| Perfekt Investments LLP | | 2013 |
| Perivale Property Ltd | Real estate | 2021 |
| Perkio Ltd | Wholesale & retail | 2025 |
| Perlus Property Services Ltd | Real estate | 2004 |
| Perm Recruitment Limited | Administrative & support | 2019 |
| Perma Container (UK) Line Limited | Transport & logistics | 2002 |
| Perra Logistics Ltd | Wholesale & retail | 2022 |
| Perry-Owen Ltd | Other services | 2003 |
| Personalised Community Care Ltd | Health & social care | 2019 |
| Perspective Aesthetics Limited | Public administration | 2023 |
| Perto 46 Ltd | Other services | 2024 |
| Peruki Ltd | Transport & logistics | 2018 |
| Pessoa Investments Ltd | Real estate | 2023 |
| Pessoa Limited | Arts & recreation | 2019 |
| Pet a Pawter Dog Grooming Ltd | Other services | 2019 |
| Petcu A&V Ltd | Transport & logistics | 2024 |
| Peter Dyer Photographs Limited | Professional & scientific | 2009 |
| Peters - ALL Enterprises Limited | Professional & scientific | 1999 |
| Pethers of KEW Ltd | Wholesale & retail | 2022 |
| Petrichor Healthcare Provisions Ltd | Health & social care | 2020 |
| Petrides & Papadaki Property Group Ltd | Real estate | 2016 |
| Pets 4 YOU Limited | Wholesale & retail | 2016 |
| Pettifer Plumbing & Heating Ltd | Construction | 2022 |
| Peugeot Servicing and Repairs Limited | Wholesale & retail | 2017 |
| Pfdr Associates Limited | Administrative & support | 2011 |
| PG Consultancy Services Limited | Professional & scientific | 2015 |
| PH Tennis Cuffley Ltd | Arts & recreation | 2020 |
| Phab Electronics Limited | | 1973 |
| Pham Eco Packaging Limited | Hospitality | 2025 |
| Phan DAT Hull Limited | Other services | 2026 |
| Pharm 4 Life Ltd | Health & social care | 2016 |
| Pharm Insight Ltd | Wholesale & retail | 2023 |
| PHARM-LIB92 Limited | Wholesale & retail | 2025 |
| Pharmaexcel Ltd | Health & social care | 2023 |
| Pharos Futures Group Ltd | Professional & scientific | 2025 |
| Phdm Solutions Limited | Construction | 2014 |
| Phebean Services Limited | Information & communication | 2012 |
| PHG 1919 Consultancy Limited | Wholesale & retail | 2012 |