| One Tree Horticulture Ltd | Wholesale & retail | 2014 |
| Only the Bold Ltd | Information & communication | 2022 |
| Oprsec Ltd | Administrative & support | 2024 |
| Optimum Tech Solutions Ltd | Other services | 2020 |
| Optiplan Ltd | Information & communication | 2025 |
| Opus Music Community Interest Company | Arts & recreation | 2012 |
| Orangutan Rescue Limited | Wholesale & retail | 2020 |
| Orchid Comms Limited | Energy | 2018 |
| Oriental Chef Alfreton Limited | Hospitality | 2023 |
| Oriental WQ Limited | Hospitality | 2019 |
| Orrdinary Faces Ltd | Information & communication | 2025 |
| Orthodox Beer Dispense Ltd | Administrative & support | 2023 |
| Osborne Aesthetics Ltd | Other services | 2025 |
| Oscade Plumbing & Heating Services Ltd | Construction | 2018 |
| Oughton Enterprises Ltd | Real estate | 2023 |
| Overland Custom Limited | Wholesale & retail | 2011 |
| Overwatch Community Response CIC | Administrative & support | 2023 |
| P Kilminster Childminding Ltd | Health & social care | 2026 |
| P.D. Aesthetics Limited | Health & social care | 2018 |
| P.F. Lynch Environmental Services Limited | Professional & scientific | 2006 |
| P.F.D Flooring Limited | Construction | 2005 |
| P.J. Whitehurst (Building) Limited | Construction | 1965 |
| Pal-Foot Limited | Manufacturing | 2005 |
| Palm Property Holdings Limited | Real estate | 2021 |
| Palm Spas Limited | Wholesale & retail | 2016 |
| Palmer Morewood Memorial Social Club Limited | Hospitality | 1993 |
| Paranog Ltd | Transport & logistics | 2017 |
| Parcelink Logistics Limited | Transport & logistics | 2015 |
| Parker Liddle Architecture Ltd | Professional & scientific | 2021 |
| Parkin & Jones (Motors) Limited | Transport & logistics | 1946 |
| Parkside Stables Limited | Agriculture & fishing | 2002 |
| Party & Leisure Hire Ltd | Administrative & support | 2020 |
| PAS General Services Ltd | Health & social care | 2019 |
| Pathlawn Limited | Wholesale & retail | 2001 |
| Patosh Holdings Limited | Health & social care | 2016 |
| Paul James Bruce Limited | Professional & scientific | 2012 |
| Paul Smith Building and Roofing Ltd | Construction | 2024 |
| Paul Webster Lingerie Ltd | Wholesale & retail | 2019 |
| Pave Style Construction Limited | Construction | 2025 |
| Paws-Itivity Dogs Ltd | Other services | 2025 |
| PC Wall & Floor Tiling Contractors Limited | Construction | 2013 |
| PDS Building and Renovations Ltd | Construction | 2017 |
| Peak Building Solutions Ltd | Construction | 2020 |
| Peak Leasing Limited | Administrative & support | 2000 |
| Pedley Accountants Limited | Professional & scientific | 2012 |
| Peka Care Limited | Administrative & support | 2023 |
| PEN & Paper Creative Ltd | Professional & scientific | 2022 |
| Pensions - Made Simple Limited | Professional & scientific | 2025 |
| Pentrich Road Garage Limited | Wholesale & retail | 2021 |
| Perfect Properties for YOU Ltd | Real estate | 2023 |
| Perform Leader Ltd | Professional & scientific | 2023 |
| Perfume Addict (UK) Ltd | Wholesale & retail | 2010 |
| Pergola Pro Ltd | Wholesale & retail | 2025 |
| Permagroup Limited | Financial services | 2017 |
| Permaroof (UK) Limited | Construction | 2000 |
| Peter Byard Plant Hire Limited | Administrative & support | 2003 |
| Pets and Pups Ltd | Agriculture & fishing | 2021 |
| PFB Building Services Ltd | Construction | 2013 |
| PFH Asset Management Limited | Administrative & support | 2025 |
| PFH Commercial Properties Limited | Real estate | 2025 |
| PFH Residential Properties Limited | Real estate | 2024 |
| PG Mortgages & Loans Limited | Financial services | 2003 |
| Pharmacover Locums Ltd | Administrative & support | 2008 |
| Phoenix ND Education Ltd | Education | 2022 |
| Pierce of Art Limited | Other services | 2013 |
| Pilgrim Refrigeration Services Limited | Manufacturing | 2002 |
| Pink Parrot Holding Limited | Administrative & support | 2017 |
| Pink Parrot Transport Ltd | Transport & logistics | 2020 |
| Piped UP Renewables Limited | Construction | 2023 |
| PIT Stop J28 Limited | Wholesale & retail | 2008 |
| Pizza Bakers Ltd | Hospitality | 2022 |
| Pizzaland SN Ltd | Hospitality | 2022 |
| PK Property Management Services Limited | Households | 2022 |
| Planet Carp Ltd | Wholesale & retail | 2017 |
| Plant Equipment Limited | Manufacturing | 2023 |
| Platinum Courier Services Ltd | Transport & logistics | 2025 |
| Platinum Electrical Limited | Construction | 2005 |
| Play the Future Limited | Information & communication | 2025 |
| Plug & Play Sales Ltd | Professional & scientific | 2025 |
| PLUMBER4ME Ltd | Construction | 2019 |
| Plus Systems Ltd | Information & communication | 2023 |
| Pmlc Limited | Professional & scientific | 2000 |
| Point 45 Limited | Information & communication | 2022 |
| POP Parts Plus Limited | Wholesale & retail | 2003 |
| Porchester Auto Centre Limited | Wholesale & retail | 2001 |
| Poulter Blackwell Limited | Professional & scientific | 2010 |
| Powermyself Ltd | Extraterritorial | 2010 |
| Poxton Family Holdings Limited | Financial services | 2024 |
| PPM Consulting Services Ltd | Information & communication | 2018 |
| PPR Associates Ltd | Real estate | 2010 |
| Praesidia Medical Limited | Health & social care | 2010 |
| PRE Loved Gaming Ltd | Wholesale & retail | 2025 |
| Precast Construction Technology Ltd | Wholesale & retail | 2009 |
| Preloved Electronics Ltd | Wholesale & retail | 2025 |
| Premier Waste Recycling Limited | Water & waste | 2011 |
| Presentation Design Services (Holdings) Limited | Financial services | 2014 |
| Presentation Design Services Limited | Professional & scientific | 2003 |
| Prestige Contract Services (Midlands) Ltd | Construction | 2021 |
| Prestige Resource Solutions Limited | Administrative & support | 2023 |
| Prestige Social Media Management Limited | Professional & scientific | 2025 |