| Prawn on the Lawn Limited | Hospitality | 2015 |
| Prawn on the Lawn Services LLP | | 2023 |
| Precious Cargo Solutions Limited | Transport & logistics | 2025 |
| Precision Prosec Ltd | Administrative & support | 2021 |
| Precision Prosec Properties Ltd | Real estate | 2024 |
| Premier (1000) Limited | Professional & scientific | 2006 |
| Premier Gravel Direct Ltd | Wholesale & retail | 2018 |
| Premier Risk Limited | Professional & scientific | 2016 |
| Premium Salon Brands Ltd | Wholesale & retail | 2011 |
| Premium Stock Supplies Limited | Wholesale & retail | 2022 |
| Preneur Capital Ltd | Financial services | 2020 |
| Prescience Music Ltd | Information & communication | 2014 |
| Press & SON Limited | Wholesale & retail | 2021 |
| Prestige Properties (West Yorkshire) Limited | Real estate | 2018 |
| Prime Estate Management Limited | Real estate | 2005 |
| Prinsix Technologies Limited | Information & communication | 2019 |
| Prints in Pieces Ltd | Wholesale & retail | 2019 |
| Proact Construction Ltd | Construction | 2016 |
| Proact Property (Services) Limited | Real estate | 2013 |
| Proactis Bidco Limited | Financial services | 2021 |
| Proactis Euro Hedgeco Limited | Professional & scientific | 2017 |
| Proactis Limited | Information & communication | 1996 |
| Proactis Overseas Limited | Professional & scientific | 2003 |
| Proactis Topco Limited | Financial services | 2021 |
| Proactis US Dollar Hedgeco Limited | Professional & scientific | 2017 |
| Probalm Ltd | Manufacturing | 2011 |
| Proceed Clinical Ltd | Professional & scientific | 2025 |
| Proficis Limited | Professional & scientific | 2016 |
| Profitmaker Limited | Professional & scientific | 2004 |
| Profound Recruitment Partners Limited | Administrative & support | 2018 |
| Progress Solutions Limited | Information & communication | 1998 |
| Project (Giggleswick) Limited | Construction | 2023 |
| Project Breakout Ltd | Information & communication | 2017 |
| Project Delorean Bidco Limited | Extraterritorial | 2016 |
| Project Delorean Topco Limited | Extraterritorial | 2016 |
| Project Design Services (Yorkshire) Limited | Construction | 1996 |
| Project Emley Limited | Construction | 2023 |
| Project Fenay Bridge Limited | Construction | 2022 |
| Project Harthill Limited | Real estate | 2022 |
| Project Hoddy Ltd | Wholesale & retail | 2025 |
| Project Prodigal LLP | | 2021 |
| Project Pudsey Limited | Real estate | 2024 |
| Project Tasty Limited | Hospitality | 2008 |
| Project Underdog Limited | Wholesale & retail | 2017 |
| Prop Firms Compared Ltd | Information & communication | 2024 |
| Propertynest Estate Agents Ltd | Information & communication | 2017 |
| Propvision Tech Ltd | Information & communication | 2026 |
| Proroute Limited | Information & communication | 2020 |
| Prose Advisory Limited | Real estate | 2023 |
| Prose Investments Limited | Extraterritorial | 1984 |
| PT Kenny Construction Limited | Construction | 2018 |
| Pure Adhesion Limited | Wholesale & retail | 2004 |
| Pure Driven Marketing Limited | Professional & scientific | 2016 |
| Pureflax Limited | Wholesale & retail | 2013 |
| Purewood Timber Windows & Doors Ltd | Construction | 2018 |
| Purewood Windows Limited | Construction | 2022 |
| Pwindmill Limited | Hospitality | 2020 |
| PZ Developments Ltd | Construction | 2023 |
| Qualcare Limited | Professional & scientific | 2002 |
| Quantum First AID Training Ltd | Administrative & support | 2012 |
| Quarry Hill (Management) Limited | Households | 2006 |
| Quarry Hill Developments Limited | Real estate | 2006 |
| Quarry Hill Electrical Ltd | Construction | 2018 |
| Quay Coaching Ltd | Public administration | 2017 |
| Quercus Archaeology Ltd | Administrative & support | 2022 |
| Qweb Limited | Information & communication | 2018 |
| R & a Corporate Limited | Real estate | 2024 |
| R & J Haigh Limited | Real estate | 2006 |
| R Ames Forestry Contracting Limited | Agriculture & fishing | 2004 |
| R D Jones Consulting Ltd | Professional & scientific | 2023 |
| R F B Consulting Limited | Information & communication | 2000 |
| R G Development Consulting Limited | Professional & scientific | 2012 |
| R Goodship Limited | Construction | 2007 |
| R Hannam Consultancy Limited | Information & communication | 2009 |
| R J M Home & Gardens Limited | Construction | 2019 |
| R M Jackson Associates Ltd | Financial services | 2017 |
| R Mitchell N S a Limited | Professional & scientific | 2003 |
| R N a Investments Limited | Other services | 1978 |
| R.A.H Property Ltd | Construction | 2021 |
| R.A.O.B.G. L.E. Trust Corporation Limited | Administrative & support | 1959 |
| R.H. Mawson (Engineers) Limited | Manufacturing | 1971 |
| R.V.T. Property Limited | Real estate | 2016 |
| R3KJ Limited | Health & social care | 2010 |
| Rachel Evans Limited | Professional & scientific | 2013 |
| Radhuni Spice Ltd | Hospitality | 2024 |
| Radiovox Limited | Real estate | 1994 |
| Rail Wagon Association Limited | Other services | 2020 |
| Randa Property Management Ltd | Real estate | 2019 |
| Rapidsci Consulting Ltd | Professional & scientific | 2021 |
| Raspberry Digital Ltd | Information & communication | 2022 |
| Rawhunter Ltd | Hospitality | 2025 |
| RB S&S Ltd | Administrative & support | 2020 |
| RC Bridleworks Company Limited | Manufacturing | 2016 |
| RC Lilac Limited | Administrative & support | 2025 |
| Ready MIX Limited | Manufacturing | 2019 |
| Realflare Limited | Information & communication | 2019 |
| Rebels Without Applause Ltd | Professional & scientific | 2008 |
| Reclaimed Reloved Ltd | Wholesale & retail | 2019 |
| Recommend & Share Ltd | Information & communication | 2018 |
| Red Click Solutions Limited | Information & communication | 2018 |