| P.G.W.Newark Limited | Real estate | 1997 |
| P.Lloyd Engineering Limited | Administrative & support | 2012 |
| P.N. Dales Limited | Financial services | 2008 |
| P996GT301 Limited | Administrative & support | 2022 |
| Pace Apparel Ltd | Wholesale & retail | 2026 |
| Pace Training Studio Ltd | Arts & recreation | 2026 |
| PAG Consultancy Ltd | Professional & scientific | 2019 |
| PAH Logistics (East Mids) Ltd | Transport & logistics | 2018 |
| Paint Coat Limited | Construction | 2015 |
| Palin Investments | | 2001 |
| Palm Automotive Limited | Wholesale & retail | 2002 |
| Pandolim Projects Limited | Construction | 2014 |
| Panorama Care Limited | Information & communication | 2024 |
| Panoramix Design Limited | Professional & scientific | 2021 |
| Panoramix Limited | Professional & scientific | 2019 |
| Para-Phonic Ltd | Information & communication | 2025 |
| Paradox Analytics Ltd | Extraterritorial | 2016 |
| Paraone Limited | Information & communication | 2016 |
| Parish Farming LLP | | 2007 |
| Parish Plumbing and Heating Limited | Construction | 2011 |
| Park Accountancy Limited | Professional & scientific | 1996 |
| Park Energy Brokerage Ltd | Financial services | 2026 |
| Park Farm (Wellow) Limited | Administrative & support | 2003 |
| Park Lidgett Wealth Management Limited | Financial services | 2019 |
| Parker Car and Commercials Ltd | Wholesale & retail | 2025 |
| Parker Mccluskey Estates Limited | Real estate | 2013 |
| Parkes Pubs Ltd | Hospitality | 2025 |
| Parkitt Limited | Wholesale & retail | 2017 |
| Parkwell Property Ltd | Real estate | 2021 |
| Partic (Newark) Limited | Wholesale & retail | 2018 |
| Partic Motor Spares (Holdings) Limited | Financial services | 2018 |
| Parwel Investments Limited | Financial services | 2024 |
| Passive Fire Specialists Limited | Public administration | 2025 |
| PASSPORT365 Group Limited | Financial services | 2025 |
| PASSPORT365 Limited | Information & communication | 2021 |
| Passwinfield Ltd | Real estate | 2016 |
| Past Times Antiques Ltd | Wholesale & retail | 2021 |
| Pasture View Limited | Households | 2026 |
| Pat-It Limited | Other services | 2021 |
| Patients Safety First Enterprise Limited | Wholesale & retail | 2010 |
| Pattersons Carpets Limited | Wholesale & retail | 1980 |
| Paul a Crothers Limited | Agriculture & fishing | 2015 |
| Paul Ducksbury Limited | Agriculture & fishing | 1985 |
| Paul J Flynn Limited | Financial services | 2013 |
| Paul Mendham Stonemasons Limited | Construction | 2002 |
| Paul Otter Roofing Limited | Construction | 2018 |
| Paul Spink Limited | Agriculture & fishing | 2000 |
| PB Toys and Games Limited | Manufacturing | 2023 |
| PBC Trans Ltd | Transport & logistics | 2025 |
| PCB Engineering Limited | Manufacturing | 2013 |
| Pdar Construction Ltd | Construction | 2019 |
| PDL Driver Hire Ltd | Transport & logistics | 2023 |
| PEA Green Toilets Limited | Administrative & support | 2007 |
| Peahekin Ltd | Transport & logistics | 2022 |
| Peak Precious Metals Ltd | Wholesale & retail | 2021 |
| Pear Tree Asset Rental Limited | Administrative & support | 2020 |
| Pearl and Grace Limited | Other services | 2015 |
| Pearson's Nursery Limited | Wholesale & retail | 2016 |
| Pegasus Aviation Group Ltd | Transport & logistics | 2025 |
| Pegasus Therapeutic Learning Centre CIC | Education | 2024 |
| Pelamb Ltd | Financial services | 2022 |
| Pelham Securities Limited | Professional & scientific | 2013 |
| Penology Ltd | Wholesale & retail | 2024 |
| People First ER Solutions Ltd | Administrative & support | 2025 |
| Perfect Day Pubs and Bars Limited | Hospitality | 2015 |
| Perfect Outlook Limited | Construction | 2021 |
| Perfect Selection Limited | Administrative & support | 2008 |
| Pet Foods Plus Ltd | Wholesale & retail | 2005 |
| Pete Norris Limited | Agriculture & fishing | 2004 |
| Peter Clark Inspection Services Ltd | Construction | 2012 |
| Peter Eugene Ball Sculpture Limited | Arts & recreation | 2013 |
| PEU20501 Limited | Administrative & support | 2021 |
| PG Carraher Limited | Professional & scientific | 2014 |
| PG Specialist Rail Services Limited | Manufacturing | 2014 |
| PGS Design Ltd | Professional & scientific | 2006 |
| Pharma Commercial Solutions Ltd | Professional & scientific | 2023 |
| Pharma Performance Partners Limited | Professional & scientific | 2015 |
| Pheasantry Farms and Brewery Limited | Agriculture & fishing | 2020 |
| Pheasantry Limited | Extraterritorial | 2020 |
| Phil Aldridge Productions Ltd | Arts & recreation | 2017 |
| Phil Staniforth Limited | Professional & scientific | 2010 |
| Phoenix CPC Ltd | Administrative & support | 2016 |
| Phoenix Engineering Services Limited | Professional & scientific | 2018 |
| Phoenix Medical Training Ltd | Education | 2020 |
| Phoenix Print and Design Limited | Manufacturing | 2018 |
| Phoenix Rising Business Consulting Ltd | Professional & scientific | 2025 |
| Phoenix Rose Investments Ltd | Real estate | 2026 |
| Phone Mate Limited | Wholesale & retail | 2023 |
| Photography by Hall & Hall Ltd | Professional & scientific | 2016 |
| Physical Training Team Ltd | Arts & recreation | 2011 |
| PI Consulting (Newark) Ltd | Professional & scientific | 2021 |
| Piccalilli Nottingham Ltd | Hospitality | 2024 |
| Pickerio Ltd | Information & communication | 2025 |
| Pickleball Garage Ltd | Wholesale & retail | 2025 |
| Pierce ME Jessi B Ltd | Wholesale & retail | 2023 |
| Pierrepont Estates Management Ltd | Real estate | 1977 |
| Pifa Enterprises Limited | Financial services | 2019 |
| Pikemaster Limited | Construction | 1980 |
| Pilates by Philippa Limited | Health & social care | 2003 |
| Pilgrim House (Boston) Limited | Households | 2023 |