| Pipework Services Ltd | Construction | 2003 |
| Piphan Limited | Professional & scientific | 2015 |
| Piping & Mechanical Services Limited | Extraterritorial | 2004 |
| Pitchblack Productions Ltd | Construction | 2016 |
| Pitstop (UK) Limited | Wholesale & retail | 1994 |
| Pixeled Construction Limited | Construction | 2026 |
| Pixeled Event Production Ltd | Arts & recreation | 2020 |
| Pixie Dust Haulage Ltd | Transport & logistics | 2025 |
| Pixlmaker Ltd | Information & communication | 2015 |
| Pizza Buddies Ltd | Hospitality | 2021 |
| Pizza City Chippy Ltd | Other services | 2022 |
| Pizza Linc Ltd | Hospitality | 2024 |
| Pizza Place Lincoln Ltd | Hospitality | 2026 |
| Pizza Plus (U.K) Ltd | Hospitality | 2024 |
| Pizza X Kebab Limited | Hospitality | 2019 |
| Pizza X Topkapi Limited | Hospitality | 2018 |
| Pizzeria DA Capri Limited | Hospitality | 2019 |
| PJ Interests Ltd | Hospitality | 1996 |
| PJ Lancaster Electrical Services Ltd | Construction | 2013 |
| PJ Rhodes Consultancy Limited | Professional & scientific | 2010 |
| PJ Woodward Property Ltd | Real estate | 2018 |
| Pj(Lincoln) Ltd | Professional & scientific | 2022 |
| PJC Business Development Limited | Professional & scientific | 2013 |
| PJS Electrical Services Limited | Construction | 2014 |
| PJS Supermarket Ltd | Wholesale & retail | 2019 |
| PJW Medical Limited | Health & social care | 2014 |
| Pjxchange Ltd | Wholesale & retail | 2024 |
| PK Consulting Services Limited | Professional & scientific | 2024 |
| PK Holdings (Lincoln) Limited | Manufacturing | 2017 |
| PKI GT Service Solutions Ltd | Manufacturing | 2022 |
| Pkjsj Limited | Health & social care | 2022 |
| PKS (UK) Limited | Financial services | 1983 |
| Place Profiler Ltd | Information & communication | 2026 |
| Plan B Catering Equipment Ltd | Wholesale & retail | 2017 |
| Plan to Elevate Ltd | Information & communication | 2023 |
| Plane Wired Ltd | Professional & scientific | 2007 |
| Platinum Cleaning Support Limited | Administrative & support | 2026 |
| Platinum Sales and Distribution Limited | Professional & scientific | 2015 |
| Platinum SD Holdings Ltd | Financial services | 2026 |
| Platinum Wills Limited | Professional & scientific | 2019 |
| Plato Education Limited | Education | 2024 |
| Plexsys Interface Products UK Ltd | Information & communication | 2010 |
| Plots Farm Estate Ltd | Agriculture & fishing | 2022 |
| Plum Products Limited | Wholesale & retail | 1988 |
| Plumb Co (Lincoln) Ltd | Construction | 2022 |
| Plumb Right Plumbing Limited | Construction | 2023 |
| Plumb Tech (Lincoln) Limited | Construction | 2018 |
| PLUMBGAS365 Ltd | Construction | 2020 |
| Plumblincs Ltd | Construction | 2012 |
| Plumbmac Services Limited | Construction | 2008 |
| Plumlyn Property Group Ltd | Real estate | 2026 |
| PM Building Consultants Limited | Construction | 2017 |
| PM Lettings (Lincoln) Limited | Real estate | 2016 |
| PM Photography Limited | Professional & scientific | 2012 |
| PM Tyres Limited | Manufacturing | 2015 |
| PM2K Property Ltd | Construction | 2022 |
| Pmcx Ltd | Other services | 2025 |
| PMD Contracting Ltd | Construction | 2012 |
| PMD Holdings (Lincoln) Ltd | Financial services | 2024 |
| PMD Plant Ltd | Other services | 2021 |
| PMK Tipping Ltd | Water & waste | 2019 |
| PMP Building Services Ltd | Construction | 2023 |
| Pmva Namron Limited | Education | 2020 |
| Poacher Trading Limited | Wholesale & retail | 2012 |
| Podcast Portal Ltd | Information & communication | 2025 |
| Point Electrical Services Limited | Construction | 2010 |
| Poke the Box Studios Limited | Professional & scientific | 2023 |
| Pole Star Products Limited | Wholesale & retail | 2002 |
| Pole Star Property Management Ltd | Real estate | 2025 |
| Poleboxx Ltd | Wholesale & retail | 2019 |
| Polevar Limited | Other services | 2024 |
| Polish Citizens Advice Bureau Ltd | Wholesale & retail | 2023 |
| Polish School Lincoln CIC | Education | 2020 |
| Polkeycollins Associates Ltd. | Professional & scientific | 2012 |
| Pollendrop Limited | Wholesale & retail | 2011 |
| Pollminster Limited | Construction | 2000 |
| Pollys Properties (Lincoln) Limited | Real estate | 2025 |
| Poly Postal Packaging Limited | Manufacturing | 2008 |
| Pompa Garden Services Limited | Administrative & support | 2015 |
| Ponton Quarries Limited | Extraterritorial | 2009 |
| POP Design Agency Limited | Information & communication | 2007 |
| POP UP Units Ltd | Construction | 2022 |
| Popaloo Limited | Extraterritorial | 2013 |
| Popert Urology Services Ltd | Health & social care | 2010 |
| Poplar Property Services Ltd | Administrative & support | 2019 |
| Poppies Care Centre Limited | Health & social care | 2023 |
| Poppy Apple Properties Ltd | Real estate | 2024 |
| Poppy Wilcox Property Staging Ltd | Arts & recreation | 2024 |
| Pops Truck Services Ltd | Transport & logistics | 2023 |
| Portal Holdings Ltd | Real estate | 2025 |
| Portal Safety & Training Services Limited | Professional & scientific | 2018 |
| Portal Solve Ltd | Information & communication | 2022 |
| Portcullis Financing Limited | Real estate | 2024 |
| Portelli Group Ltd | Hospitality | 2022 |
| Portland Street Ltd | Construction | 2026 |
| Portland Tools (1998) Limited | Wholesale & retail | 1998 |
| Portland Towing Centre Limited | Administrative & support | 1987 |
| Portprince Models and Hobbies Limited | Real estate | 1980 |
| Portstable Limited | Manufacturing | 2011 |
| Portus Consultancy Limited | Professional & scientific | 2022 |