| Pete Hughes Vehicle Services Limited | Wholesale & retail | 2012 |
| Pete's Place (Projects) Ltd | Administrative & support | 2026 |
| Peter Tasou Limited | Real estate | 2026 |
| Petersbrook Securities Limited | Financial services | 1988 |
| PG Steel Ltd | Construction | 2026 |
| PGL Developments Limited | Real estate | 2006 |
| PGN Electrical Ltd | Construction | 2021 |
| PH & S Barrett Limited | Wholesale & retail | 2003 |
| PH Orthodoc Ltd | Health & social care | 2019 |
| PH Property Enterprises Limited | Real estate | 2021 |
| Pharm-Assist Locum Solutions Ltd | Health & social care | 2024 |
| Pharmahealth Ltd | Professional & scientific | 2014 |
| Phil Value Mobiles Ltd | Wholesale & retail | 2023 |
| Phillip Autos Ltd | Wholesale & retail | 2018 |
| PHL Maintenance Ltd | Manufacturing | 2023 |
| Phoenix Accountancy and Business Consultancy Limited | Professional & scientific | 2019 |
| Phone Tech Services Ltd | Wholesale & retail | 2023 |
| Photos by Jordan Ltd | Professional & scientific | 2025 |
| Phox Hosting Ltd | Information & communication | 2025 |
| Phronesis Support Services Ltd | Public administration | 2020 |
| Physiq Ltd | Education | 2024 |
| Physique Fitness Ltd | Arts & recreation | 2023 |
| Pieri Property Ltd | Real estate | 2023 |
| Pilling Anaesthetics Ltd | Health & social care | 2024 |
| Pinnacle Digital Ltd | Professional & scientific | 2019 |
| Pinnock Farms Limited | Agriculture & fishing | 1943 |
| PIP Frear Ltd | Wholesale & retail | 2007 |
| Pipeline Services (UK) Limited | Administrative & support | 2000 |
| Pirate Storage Limited | Transport & logistics | 2024 |
| Pitboz Dropshipping Ltd | Wholesale & retail | 2023 |
| Pitch Lincs Sports Ltd | Construction | 2023 |
| Pivotal International Solutions Limited | Wholesale & retail | 2025 |
| Pivotal Lincs Ltd | Construction | 2016 |
| Pixie Payroll Limited | Professional & scientific | 2025 |
| Pizza 1C Side Ltd | Hospitality | 2026 |
| PJ Interiors (Brigg) Limited | Administrative & support | 2000 |
| PJ Trade Ltd | Wholesale & retail | 2023 |
| Pj's Plumbing & Heating Limited | Construction | 2021 |
| PJG Kitchens and Interiors Ltd | Construction | 2026 |
| PK Fabrications Limited | Manufacturing | 2006 |
| PK Parts Trading Ltd | Wholesale & retail | 2022 |
| PK Trade Ltd | Wholesale & retail | 2023 |
| PKF Holdings Ltd | Financial services | 2024 |
| PL Leisure Ltd | Arts & recreation | 2021 |
| PLACE2BUILD Ltd | Construction | 2010 |
| PLACE2INVEST Ltd | Construction | 2012 |
| PLACE2LEASE Ltd | Real estate | 2012 |
| PLACE2LIVE Ltd | Real estate | 1999 |
| PLACE2RENT Ltd | Construction | 2009 |
| Planet Corsa Limited | Wholesale & retail | 2019 |
| Planet Ecotech Research Limited | Financial services | 2026 |
| Plantcraft Limited | Administrative & support | 1976 |
| Plowright Community Theatre CIC | Arts & recreation | 2024 |
| PLS Civil Engineering Limited | Professional & scientific | 2014 |
| PLS Enterprises Limited | Real estate | 2014 |
| PLS Geomatics Ltd | Professional & scientific | 2019 |
| PLS Precision Engineering Limited | Professional & scientific | 2014 |
| Plumb Deal Ltd | Construction | 2010 |
| Plumb Deal Properties Ltd | Real estate | 2026 |
| Plumbing & Air Conditions Solutions Limited | Construction | 2023 |
| PM Associates Ltd | Professional & scientific | 2012 |
| PMC Dryliners Ltd | Construction | 2012 |
| PMP Construction Services Ltd | Construction | 2023 |
| Podium Vehicles Limited | Wholesale & retail | 2021 |
| Poenaru Investment Limited | Transport & logistics | 2021 |
| Pofta Buna Ltd | Wholesale & retail | 2025 |
| POGO4U Limited | Information & communication | 2025 |
| Pogson Ltd | Construction | 2004 |
| Polar Isolations Ltd | Construction | 2016 |
| Polaris Comms Ltd | Administrative & support | 2023 |
| Polly-Jo Accessories Limited | Wholesale & retail | 2005 |
| Polo Delivery Ltd | Transport & logistics | 2024 |
| Polypearl Management Ltd | Professional & scientific | 2015 |
| Polypearl Moulded Products Limited | Manufacturing | 2011 |
| Pomme PR and Marketing Limited | Administrative & support | 2010 |
| Poole Farm Services Limited | Manufacturing | 2002 |
| Pope Decorators Ltd | Construction | 2012 |
| Poplars Steels Ltd | Professional & scientific | 2013 |
| Poppy Plant Hire Limited | Administrative & support | 2017 |
| Poseidon Properties Limited | Real estate | 2014 |
| Posh Bird Designs Ltd | Manufacturing | 2020 |
| Postal Bird Ltd | Transport & logistics | 2025 |
| Potluck Prizes Ltd | Other services | 2021 |
| Potters Auction Saleroom Limited | Wholesale & retail | 2017 |
| Pound Plus Scunthorpe Ltd | Wholesale & retail | 2025 |
| Powell Packaging Limited | Manufacturing | 1983 |
| Power Coatings Ltd | Construction | 2013 |
| Power Commissioning Services Limited | Manufacturing | 2014 |
| Powersource Contracting Ltd | Construction | 2025 |
| Powerup Off-Grid Services Limited | Professional & scientific | 2021 |
| Powerwise Solutions Limited | Professional & scientific | 2022 |
| Pozoo Market 1 Limited | Wholesale & retail | 2025 |
| PR Computer Services Limited | Information & communication | 2017 |
| PR Recruitment and Training Ltd | Administrative & support | 2015 |
| Praetorix Consultancy Ltd | Administrative & support | 2025 |
| Prbi Ltd | Real estate | 2025 |
| Precision Fleet Services Ltd | Wholesale & retail | 2025 |
| Preeti Limited | Health & social care | 2019 |
| Premier Drainage and Gutter Cleaning Limited | Construction | 2020 |
| Premier Drinks (UK) Limited | Extraterritorial | 1991 |