| Pingle Limited | Energy | 2013 |
| Pink Sink Ltd | Real estate | 2013 |
| Pinnacle Safety Group Limited | Other services | 2009 |
| Pinnacle Testing Services Limited | Administrative & support | 2007 |
| Pinsapo Properties Ltd | Real estate | 2020 |
| Pioneer Drilling Limited | Construction | 2024 |
| Pipe Force (Newark) Limited | Construction | 2003 |
| Pipefab Engineering Services Limited | Manufacturing | 2025 |
| Pipetek Welding & Fabrication Ltd | Manufacturing | 2026 |
| Pippins Playgroup Community Interest Company | Health & social care | 2022 |
| Pivot Golf Limited | Arts & recreation | 2025 |
| Pixels & Graphics Ltd | Manufacturing | 2004 |
| PJ Barnsley Limited | Hospitality | 2017 |
| Pjsguitars Ltd | Manufacturing | 2021 |
| PKG Consultants LLP | | 2010 |
| PKM Care Services Ltd | Real estate | 2016 |
| Plan-It Design Limited | Construction | 1998 |
| Planet Management Limited | Households | 2002 |
| Planr Travel Limited | Administrative & support | 2025 |
| Plantacorp UK Ltd | Manufacturing | 2019 |
| Plasmet Midlands Limited | Wholesale & retail | 2025 |
| Plasterpro Ltd | Construction | 2016 |
| Plasterpro Projects Ltd | Construction | 2022 |
| Platform RC Limited | Professional & scientific | 2007 |
| Platypus Swim School Ltd | Administrative & support | 2016 |
| Play Days Cottage Ltd | Health & social care | 2019 |
| Play Magnetics Ltd | Extraterritorial | 2024 |
| Pleasley MOT Ltd | Wholesale & retail | 2025 |
| Plough (Farnsfield) Limited | Hospitality | 2003 |
| Plumbing Solutions by NE Plumbing Limited | Construction | 2018 |
| Plumbsec Ltd | Manufacturing | 2026 |
| PLW Holdings Ltd | Agriculture & fishing | 2021 |
| Plytek Services Limited | Manufacturing | 2011 |
| Pm&G Limited | Professional & scientific | 2002 |
| PMB Office Design Limited | Wholesale & retail | 2013 |
| PMI Properties Limited | Real estate | 2005 |
| Pneu-Therm Limited | Manufacturing | 2002 |
| PO Trader Ltd | Construction | 2026 |
| Pointer Residential Ltd | Real estate | 2021 |
| Polaris Deal Advisory Ltd | Professional & scientific | 2020 |
| Pollards of Newark Limited | Other services | 2011 |
| Polly's Cafe Newark Ltd | Hospitality | 2026 |
| Pong Limited | Extraterritorial | 2004 |
| Poppy Automation Limited | Professional & scientific | 2023 |
| Portland & Co (UK) Ltd | Wholesale & retail | 2015 |
| Portland & Co Properties Ltd | Real estate | 2018 |
| Portland Court Management Limited | Households | 1979 |
| Portland Fishing Lakes Limited | Agriculture & fishing | 2007 |
| Portland Plant Services Limited | Construction | 2011 |
| Posh Paws Luxury Animal Hotel Limited | Other services | 2023 |
| Positive Independence Ltd | Health & social care | 2018 |
| Positive Pants Family CIC | Other services | 2025 |
| Positive Pants Ltd | Other services | 2018 |
| Poskitt Property Investments Ltd | Real estate | 2014 |
| Pottsengineering Ltd | Construction | 2025 |
| Pound for Pound Ltd | Health & social care | 2012 |
| Power House Sourcing Ltd | Administrative & support | 2024 |
| Power Internet Limited | Extraterritorial | 1995 |
| Power Internet Services Limited | Extraterritorial | 2011 |
| PPG Properties Limited | Real estate | 2007 |
| Ppti Limited | Extraterritorial | 2019 |
| Ppti Renewables Limited | Professional & scientific | 2014 |
| PR Hire (Mansfield) Limited | Professional & scientific | 2015 |
| Pragma Consulting Limited | Professional & scientific | 1987 |
| Precept Pet Products Limited | Other services | 1997 |
| Precision Building Solutions Ltd | Construction | 2026 |
| Precision Diesel (Projects) Limited | Manufacturing | 2013 |
| Premium Paints Limited | Wholesale & retail | 2020 |
| Preporod Limited | Real estate | 2016 |
| Preset TV Limited | Professional & scientific | 2013 |
| Pret a Vivre Holdings Limited | Financial services | 2022 |
| Pret a Vivre Limited | Wholesale & retail | 1995 |
| Previd Digital Ltd | Information & communication | 2025 |
| Price Shepshed Limited | Real estate | 1906 |
| Priceville Properties Limited | Real estate | 1990 |
| Pridmores Limited | Wholesale & retail | 2012 |
| Primary Wellbeing C.I.C. | Health & social care | 2023 |
| Prime Chef Recruitment Ltd | Administrative & support | 2025 |
| Prime Future Ltd | Financial services | 2024 |
| Primeprint Newark Limited | Manufacturing | 2013 |
| Printfory Ltd | Manufacturing | 2022 |
| Priory Fine Art Limited | Wholesale & retail | 2010 |
| Prism Construction and Developments Limited | Construction | 2022 |
| Private Gymnasium Ltd | Arts & recreation | 2023 |
| Pro Flooring Group Ltd | Construction | 2018 |
| Pro Flooring Ltd | Construction | 2026 |
| Pro Gutter Guard Ltd | Wholesale & retail | 2023 |
| Pro Steel Services (UK) Limited | Construction | 2013 |
| Pro-Fit Mouldings Ltd | Manufacturing | 2009 |
| Pro-Heat Boiler Care Limited | Construction | 2025 |
| Pro-Heat Plumbing and Heating Limited | Construction | 2011 |
| Pro-Heat Renewables Limited | Construction | 2024 |
| Pro-Position Limited | Professional & scientific | 2012 |
| Pro-Speed Finance Limited | Financial services | 2024 |
| Proactive Finance Ltd | Professional & scientific | 2010 |
| Proactive Financials Limited | Professional & scientific | 2010 |
| Probate Services (East Midlands) Ltd | Professional & scientific | 2016 |
| Probe International Corporate Investigation Limited | Administrative & support | 2000 |
| Probe International Limited | Extraterritorial | 2024 |
| Procuriosit Consulting Ltd | Administrative & support | 2008 |