| P. Salmon Limited | Real estate | 1985 |
| Paini (UK) Limited | Wholesale & retail | 2002 |
| Palagan Limited | Professional & scientific | 1975 |
| Pantee Ltd | Wholesale & retail | 2019 |
| Paola Guadagnin Ltd | Other services | 2025 |
| Papa Earnshaws Ltd | Hospitality | 2025 |
| Paper Basis Limited | Manufacturing | 2025 |
| Paqtech Limited | Manufacturing | 2025 |
| Parcel Pace Ltd | Transport & logistics | 2018 |
| Park Lane Services (Knaresborough) Limited | Construction | 2003 |
| Park View Advisory Limited | Professional & scientific | 2016 |
| Parker Financial Investments Ltd | Real estate | 2019 |
| Parker Information Solutions Limited | Professional & scientific | 2008 |
| Passport Pets Ltd | Arts & recreation | 2024 |
| Patch Shop Ltd | Wholesale & retail | 2020 |
| Path for Growth CIC | Other services | 2026 |
| Paul Meehan Properties Ltd | Real estate | 2011 |
| Paul Middleton Films Ltd | Information & communication | 2014 |
| PD Marfleet Accounting Limited | Professional & scientific | 2026 |
| PDA Auditing Limited | Administrative & support | 2025 |
| PDA Learning Limited | Administrative & support | 2025 |
| Peachlace Developments Limited | Households | 1987 |
| Peak Physiotherapy Limited | Health & social care | 2009 |
| Pearl Associates Limited | Professional & scientific | 2025 |
| PED Plant Limited | Transport & logistics | 2009 |
| Pelsis Holding (UK) Limited | Professional & scientific | 2009 |
| Pelsis Limited | Administrative & support | 1981 |
| People Together Project Ltd | Hospitality | 2020 |
| Perch SM Consultancy Ltd | Professional & scientific | 2025 |
| Perfectly Eco Ltd | Administrative & support | 2025 |
| Performance Autocare Limited | Wholesale & retail | 2018 |
| Persketti Properties Limited | Real estate | 2024 |
| PGS Management Company Ltd | Households | 2023 |
| Piccadilly Holdings Limited | Financial services | 2016 |
| Piccadilly Motors Limited | Wholesale & retail | 1992 |
| Pick 'N' Take Limited | Wholesale & retail | 2021 |
| Pineapple Peak Consulting Ltd | Information & communication | 2016 |
| Pistonshed Limited | Wholesale & retail | 2025 |
| Pitchmarkers (Intelligent Line Marking) Ltd | Arts & recreation | 2021 |
| Pizza Slice Grill Ltd | Hospitality | 2023 |
| PJB Services Ltd | Education | 2025 |
| Plan 5 Ltd | Professional & scientific | 2018 |
| Plastics Capital Trading Limited | Professional & scientific | 2002 |
| Platform One Properties Limited | Real estate | 2023 |
| PLG Logistics Ltd | Transport & logistics | 2026 |
| PLS Property Ltd | Real estate | 2019 |
| Poplars Estates Limited | Real estate | 2024 |
| Portable Power Limited | Manufacturing | 1995 |
| Portable Power U.S.A. Ltd | Manufacturing | 2000 |
| Positility Community Interest Company | Information & communication | 2022 |
| Poster Apocalypse Limited | Wholesale & retail | 2021 |
| Powell Anaesthesia Ltd | Health & social care | 2023 |
| Powell Joinery (Yorkshire) Ltd | Manufacturing | 2023 |
| PPE Interact Ltd | Administrative & support | 2003 |
| Praecis DX Limited | Professional & scientific | 2018 |
| Prdanford Solutions Ltd | Information & communication | 2015 |
| Premium Autocare Limited | Other services | 2003 |
| Presspro Limited | Professional & scientific | 2023 |
| Prestige Car Finance Limited | Financial services | 2009 |
| Prime Solar Solutions Ltd | Professional & scientific | 2024 |
| Primeboxingandfitness Ltd | Arts & recreation | 2026 |
| Primefitness 2.0 Limited | Arts & recreation | 2025 |
| Prina Properties Ltd | Real estate | 2026 |
| Proactive Export Solutions Ltd | Construction | 1998 |
| Procentric Limited | Administrative & support | 2012 |
| Process Design Management Ltd | Professional & scientific | 2017 |
| Proexl UK Ltd | Wholesale & retail | 2021 |
| Professional Referral Service Limited | Administrative & support | 2014 |
| Project Atlas Bidco Limited | Arts & recreation | 1996 |
| Properfuel Limited | Wholesale & retail | 2019 |
| Prospect Link Ltd | Professional & scientific | 2025 |
| Prosperis Consulting Limited | Extraterritorial | 2011 |
| Prosperis Holdings Limited | Financial services | 2021 |
| Prosperis Limited | Financial services | 2002 |
| PRX Group Ltd | Professional & scientific | 2024 |
| PT Agents UK Limited | Wholesale & retail | 2010 |
| Pulseride Services Ltd | Manufacturing | 2024 |
| Purple Key Systems Limited | Information & communication | 2022 |
| Purple Tree Trading Limited | Wholesale & retail | 2011 |
| Push Digital Agency Ltd | Information & communication | 2024 |
| Puthens Ltd | Real estate | 2021 |
| Qdos Business Services Limited | Administrative & support | 2002 |
| Qsquare Ltd | Real estate | 2017 |
| Quality Domiciliary Services Ltd | Health & social care | 2016 |
| Quality Engineering Services Ltd | Professional & scientific | 2022 |
| Quality Shops Online Holdings Ltd | Financial services | 2021 |
| Quality Shops Online Limited | Wholesale & retail | 2014 |
| Questr Community Interest Company | Manufacturing | 2018 |
| R & K Hickling Properties Limited | Real estate | 2015 |
| R a & N P Chapman Limited | Agriculture & fishing | 2018 |
| R Freeman & Co. Limited | Education | 2024 |
| R Hickling Properties Limited | Real estate | 2024 |
| R M Whitehead Ltd | Arts & recreation | 2026 |
| R. a. Boven Ltd | Real estate | 2025 |
| R.K Consultants Leeds Ltd | Professional & scientific | 2025 |
| Rabbit (Holdings) Limited | Real estate | 2014 |
| Racoon Holdings Ltd | Real estate | 2024 |
| Radar Film Limited | Administrative & support | 2018 |
| Rakguy Finance Ltd | Financial services | 2019 |
| Rapport Business Consultants Limited | Professional & scientific | 2020 |