| Ormonde Aircraft Limited | Professional & scientific | 2002 |
| Over Newbold Properties Limited | Real estate | 1999 |
| P Cotterill Plumbing and Heating Limited | Construction | 2002 |
| P S Roofing Contractors Ltd | Construction | 2005 |
| P.A.L.S. (Chesterfield) Limited | Real estate | 2001 |
| Palladian Homes Limited | Construction | 2007 |
| Panda in Properties Ltd | Financial services | 2022 |
| Park Avenue Residents Limited | Households | 2002 |
| Park Gate (Reginald Street) Limited | Real estate | 2005 |
| Park Grange Management Company Ltd | Real estate | 2025 |
| Parsons Contracting (Chesterfield) Limited | Construction | 1977 |
| Paul Finley (Plumbing & Heating) Limited | Construction | 2003 |
| Paul Hadfield Builders Limited | Construction | 2003 |
| Paul Longden Limited | Construction | 2004 |
| Paul Meynell Fitted Kitchens Limited | Construction | 2003 |
| Paul Parmenter Marketing Limited | Professional & scientific | 2006 |
| Paul Simpson Wall & Floor Tile Specialist Ltd | Construction | 2003 |
| Pavilion Acres Management Company Limited | Households | 2023 |
| PCF Electrical Limited | Wholesale & retail | 2003 |
| Peach Upholstery Limited | Professional & scientific | 2004 |
| Peak Ecology Limited | Professional & scientific | 2006 |
| Peak Numerical Control Limited | Information & communication | 2002 |
| Peak Park Enterprises Limited | Real estate | 1992 |
| Peak Project Management Limited | Professional & scientific | 2004 |
| Peak Safety Limited | Professional & scientific | 2003 |
| Peak Tanning and Beauty Supplies Ltd | Wholesale & retail | 2004 |
| Pearl Distribution UK Ltd | Transport & logistics | 2020 |
| Penmark Limited | Professional & scientific | 1998 |
| Pepitos Restaurant Limited | Hospitality | 1997 |
| Percy Dawes (Alfreton) Limited | Wholesale & retail | 2007 |
| Period Features Limited | Wholesale & retail | 2006 |
| Permagroup Holdings Limited | Financial services | 2022 |
| Peter Clark & SON (Electrical) Limited | Wholesale & retail | 1977 |
| Peveril Securities Limited | Construction | 1953 |
| Phelan Computer Services Limited | Professional & scientific | 1998 |
| Philenjoco Limited | Information & communication | 2007 |
| Philip Jones Roofing Limited | Construction | 2004 |
| Phill Trousdale Welding Ltd | Manufacturing | 2017 |
| Philstan Properties Limited | Real estate | 1967 |
| Phly Limited | Wholesale & retail | 2004 |
| Photogenix Studios Limited | Professional & scientific | 2003 |
| PHS Development Consulting Ltd | Professional & scientific | 2007 |
| Physhealth Limited | Health & social care | 2006 |
| Pilsley Dale Management Limited | Real estate | 2005 |
| Pinewood Property Estates Limited | Real estate | 2006 |
| Pinn House Management Company Limited | Households | 2018 |
| Pipeweld (UK) Limited | Construction | 2002 |
| Pizza Plus (Glossop) Limited | Hospitality | 2003 |
| Planning and Management Limited | Professional & scientific | 2005 |
| Plasma Coatings Limited | Manufacturing | 1971 |
| Platinum Gate Holdings Ltd | Real estate | 2024 |
| Platinum Gym Ltd | Arts & recreation | 2022 |
| Playdays Limited | Other services | 2004 |
| Player Plant Hire Limited | Construction | 2007 |
| Plevin and Walker Limited | Extraterritorial | 1977 |
| Polyplas Extrusions Limited | Manufacturing | 1989 |
| Porto Developments Limited | Construction | 2005 |
| Power Circuits Ltd | Construction | 2002 |
| PRC Rail Consulting Ltd | Professional & scientific | 2004 |
| Premier Furnishings Ltd | Wholesale & retail | 1999 |
| Premier Secretarial Services Ltd | Professional & scientific | 2004 |
| Premium Heating Services Limited | Other services | 2004 |
| Prengate Limited | | 1985 |
| Pretty Peak District Cottages Limited | Hospitality | 2015 |
| Prime Time Consultancy Ltd | Professional & scientific | 2000 |
| Process Solutions Limited | Water & waste | 2005 |
| Project Krisztina Limited | Manufacturing | 2021 |
| Property Investment Solutions Ltd | Real estate | 2007 |
| Property Services 2000 Limited | Real estate | 1999 |
| Prorail Limited | Manufacturing | 1977 |
| Protech Medical Limited | Wholesale & retail | 1989 |
| PTI Media Limited | | 2000 |
| Pure Gift of Nature Ltd | Manufacturing | 2025 |
| Purecom Limited | Information & communication | 1993 |
| Pureform Limited | Manufacturing | 2005 |
| Purple Dragonfly Limited | Administrative & support | 2021 |
| PWE Services Limited | Construction | 2007 |
| Quality Business Promotions Limited | Information & communication | 2002 |
| Quality Vehicle Logistics Limited | Transport & logistics | 2026 |
| Quest Consultancy (Buxton) Limited | Information & communication | 1990 |
| Quill International Group Limited | Manufacturing | 1976 |
| R & a Lofthouse Butchers Limited | Wholesale & retail | 2002 |
| R Brown & Sons (Developments) Limited | Construction | 2005 |
| R G P Enterprises Limited | Real estate | 2002 |
| R Hockenhull Limited | Other services | 2003 |
| R M Hadfield Limited | Agriculture & fishing | 2005 |
| R N Joinery & Construction Limited | Manufacturing | 2017 |
| R P Technic Limited | Information & communication | 1999 |
| R-R Industrial Controls Limited | Extraterritorial | 1977 |
| R. Evans Plumbing & Heating Limited | Construction | 2003 |
| Radtest NDT Ltd | Professional & scientific | 2011 |
| Ravenwest Property Ltd | Real estate | 2000 |
| Razzi Holdings Limited | Financial services | 2007 |
| Real Business Finance Limited | Financial services | 2019 |
| Recoupe Hair and Fashion Limited | | 1986 |
| Red Sea Properties Limited | Professional & scientific | 2007 |
| Reddy for Hire Limited | Transport & logistics | 2005 |
| Regalpast Limited | Transport & logistics | 2000 |
| Reids Limited | Manufacturing | 2003 |
| Repton School Enterprises Limited | Real estate | 1991 |