| Outbreak Fest 2021 Ltd | Arts & recreation | 2020 |
| Outside the Box Business Ltd | Financial services | 2010 |
| Owlnet IP Ltd | Information & communication | 2023 |
| Oxford Diversity Industries Limited | Hospitality | 2015 |
| P & L Doyle Ltd | Real estate | 2020 |
| P a Asset Management LLP | | 2004 |
| P Escreet Ltd | Health & social care | 2011 |
| P2XEL Limited | Information & communication | 2023 |
| PA Prep Limited | Education | 2024 |
| Pabasso Ltd | Professional & scientific | 2019 |
| Pachamama Knitwear Holdings Limited | Financial services | 2024 |
| Pachamama Limited | Wholesale & retail | 1995 |
| Pachanoi Ltd | Arts & recreation | 2024 |
| Padova Services Limited | Professional & scientific | 2017 |
| Pampas & Bloom Florist Limited | Wholesale & retail | 2023 |
| Paradome Limited | Information & communication | 2024 |
| Paradoxx Drinks Limited | Manufacturing | 2023 |
| Paragon Technical Services UK Limited | Construction | 2026 |
| Park Nova Group Limited | Transport & logistics | 2025 |
| Parker Orthopaedic Services Limited | Health & social care | 2017 |
| Parkerlamb Limited | Manufacturing | 2020 |
| Parkhill Corporate Finance Limited | Professional & scientific | 2022 |
| Parking Innovation Limited | Extraterritorial | 2014 |
| Parklife (Wetherby) Limited | Extraterritorial | 2016 |
| Parklife Holidays Limited | Real estate | 2017 |
| Parklife Management Limited | Real estate | 2016 |
| Parklife Properties (Yorkshire) Limited | Real estate | 2016 |
| PARKPLACE123 Limited | Hospitality | 2026 |
| Parkway Construction (Leeds) Limited | Construction | 2018 |
| Parrish Environmental Consulting Limited | Professional & scientific | 2017 |
| Parsons Green (Holme on Spalding Moor) Management Company Limited | Real estate | 2024 |
| Patel-Campbell Holdings Ltd | Financial services | 2018 |
| Paul Andrew Dykes Limited | Professional & scientific | 2020 |
| Paul French Limited | Professional & scientific | 2001 |
| Paul Nyman Limited | Administrative & support | 2004 |
| Paula Jane Upholstery Limited | Wholesale & retail | 2018 |
| Paver Properties Ltd | Real estate | 2022 |
| Pavo Consulting Limited | Professional & scientific | 2011 |
| Paws Accessories Limited | Wholesale & retail | 2023 |
| Paws Dog Grooming Academy Limited | Education | 2023 |
| Paws Grooming Limited | Other services | 2023 |
| PC (North) Limited | Construction | 2019 |
| PEA Taylor Ltd | Professional & scientific | 2021 |
| Peacock Consultancy Services Limited | Professional & scientific | 2017 |
| Peacock Paving & Garden Services Limited | Construction | 2006 |
| Pecme Ltd | Professional & scientific | 2021 |
| Peel Maher Limited | Professional & scientific | 2017 |
| Peoni (Leeds) Limited | Real estate | 2025 |
| Peoplehub Learning Limited | Professional & scientific | 2014 |
| Peoplesmart Learning Solutions Limited | Administrative & support | 2011 |
| Percy & Percy Limited | Information & communication | 2010 |
| Perfect Circle Consulting Limited | Professional & scientific | 2020 |
| Perfectly Plastered Ltd | Construction | 2026 |
| PES Group Holdings Ltd | Financial services | 2023 |
| Pete Leon Ltd | Professional & scientific | 2024 |
| Peter Haste Consulting Ltd | Professional & scientific | 2013 |
| Peter Howard & Co (Wetherby) Limited | Professional & scientific | 2022 |
| Peter Howard Financial Services Limited | Financial services | 2009 |
| PFM Surveying Ltd | Professional & scientific | 2023 |
| PGA Property Management Limited | Administrative & support | 2011 |
| PGA Property Solutions Limited | Administrative & support | 2011 |
| PH HR Ltd | Professional & scientific | 2016 |
| Phaeton Services Limited | Administrative & support | 2003 |
| Phantom Mail Ltd | Professional & scientific | 2024 |
| Pheather Investments Limited | Financial services | 2022 |
| Phoenix Engineering Systems Limited | Manufacturing | 2016 |
| Physio Health & Pilates Ltd | Other services | 2023 |
| Pickard Development Co. Limited | Information & communication | 1960 |
| Pickard Management Services Limited | Information & communication | 1961 |
| Picture Perfect Data (Holdings) Ltd | Information & communication | 2022 |
| Picture Perfect Data Ltd | Information & communication | 2016 |
| Pippin House Projects Limited | Professional & scientific | 2002 |
| Pizza Wetherby Ltd | Hospitality | 2026 |
| PJG Financial Services Limited | Financial services | 2002 |
| Plexure UK Limited | Information & communication | 2007 |
| Plumbdog Plumbing & Heating Ltd | Construction | 2019 |
| PLW Consultants Limited | Professional & scientific | 2012 |
| PM Rewards Limited | Professional & scientific | 2024 |
| PMA Digital Services Limited | Information & communication | 2022 |
| PMF Consulting Services Ltd | Professional & scientific | 2018 |
| PMP Grupus Ltd | Financial services | 2025 |
| POLARIS3 Limited | Professional & scientific | 2014 |
| Pollinate Online Limited | Professional & scientific | 2021 |
| Pollyanna Properties Ltd | Hospitality | 2023 |
| Poly-Cycle Ltd | Other services | 2016 |
| Pomfret's of Wetherby Limited | Hospitality | 2013 |
| Pomfrets Cafe Ltd | Manufacturing | 2026 |
| Pommiers Ltd | Manufacturing | 2011 |
| POP UP Play Party Hire Limited | Arts & recreation | 2022 |
| Poplar Catering Supplies Ltd | Wholesale & retail | 2022 |
| Port Growth Partners Limited | Financial services | 2021 |
| Porta Gayola Limited | Wholesale & retail | 2017 |
| Portolan Technologies Ltd | Information & communication | 2025 |
| Portrait Kite Limited | Arts & recreation | 2025 |
| Poulter Hospitality Ltd | Hospitality | 2019 |
| Power Groove Inc Ltd | Information & communication | 2018 |
| Ppss Ltd | Manufacturing | 2009 |
| PPT Filtercycle Ltd | Water & waste | 2024 |
| Prawn on the Lawn ( London ) Limited | Hospitality | 2017 |
| Prawn on the Lawn Holdings Limited | Financial services | 2025 |