| Pro Plastering Systems Ltd | Construction | 2026 |
| Pro Scaffold Limited | Construction | 2005 |
| Pro Support Care Ltd | Health & social care | 2021 |
| Pro-Tech Plumbing and Heating Limited | Construction | 2003 |
| Proactive Wealth Planning Ltd | Financial services | 2019 |
| Problem Reaction Solution Ltd | Information & communication | 2026 |
| Probuildsolutions(Yorkshire) Ltd | Construction | 2024 |
| Procare H&T Ltd | Health & social care | 2025 |
| Proclad (Developments) Limited | Construction | 2005 |
| Prodent Denture Laboratory Ltd | Health & social care | 2012 |
| Product Armor Ltd | Wholesale & retail | 2024 |
| Productive Machines Ltd | Manufacturing | 2019 |
| Prodyjeez Branding Ltd | Professional & scientific | 2025 |
| Proe Build Solutions Limited | Construction | 2015 |
| Professional Drone Services Limited | Professional & scientific | 2024 |
| Professional Energy People Ltd | Professional & scientific | 2023 |
| Professional Energy Purchasing Ltd | Professional & scientific | 2013 |
| Professional Pest Solutions Ltd | Professional & scientific | 2026 |
| Professional Property Ltd. | Real estate | 2016 |
| Professional Response (Sheffield) Limited | Transport & logistics | 2001 |
| Proficonsult Ltd | Professional & scientific | 2023 |
| Profig Solutions Limited | Information & communication | 2020 |
| Profix Interior Solutions Ltd | Construction | 2014 |
| Profound Property Solutions Ltd | Construction | 2024 |
| Profrent Ltd | Administrative & support | 2019 |
| Programs at Work Limited | Extraterritorial | 1919 |
| Progress Prominence Ltd | Health & social care | 2014 |
| Progressions UK Limited | Education | 2009 |
| Prom Queens Ltd | Wholesale & retail | 2016 |
| Promet (Metals & Trading) Ltd | Manufacturing | 2014 |
| Promet Holdings Ltd | Real estate | 2017 |
| Promethean Dental Laboratory Ltd | Manufacturing | 2022 |
| Promise Housing Maintenance Ltd | Construction | 2023 |
| Promisys Limited | Arts & recreation | 2009 |
| PRONTO247 Limited | Health & social care | 2016 |
| Propensio Finance Limited | Financial services | 2017 |
| Propensio Receivables Limited | Financial services | 2022 |
| Proper Grub Company Ltd | Wholesale & retail | 2015 |
| Properties AK Ltd | Real estate | 2026 |
| Properties of LEE Limited | Real estate | 2019 |
| Properties to Homes Ltd | Real estate | 2018 |
| Property Gopher Lettings Limited | Real estate | 2024 |
| Property Investment Partnership UK Limited | Real estate | 2009 |
| Property Management JL Ltd | Administrative & support | 2020 |
| Propertylee LLP | | 2022 |
| Propgold Ltd | Real estate | 2025 |
| Prophouse Ltd | Real estate | 2024 |
| Propsquare 12 Ltd | Real estate | 2026 |
| Propsync Technologies Ltd | Information & communication | 2025 |
| Proroof Yorkshire Ltd | Administrative & support | 2009 |
| Prospec Ltd. | Construction | 1977 |
| Prospect Health Living Care Services Limited | Health & social care | 2018 |
| Prospect Promotions Ltd | Arts & recreation | 2018 |
| Prospera.Ceo Ltd | Professional & scientific | 2015 |
| Prosperity House Limited | Information & communication | 2022 |
| Protec Garage Doors Limited | Wholesale & retail | 2022 |
| Protec Plumbing and Heating Ltd | Construction | 2024 |
| Protech Education and Assessment Ltd | Education | 2023 |
| Protective Global Ltd | Manufacturing | 2025 |
| Protego 360 Risk Management Ltd | Administrative & support | 2024 |
| Protower Automation Limited | Manufacturing | 2025 |
| Proud Concept Limited | Manufacturing | 2024 |
| Proxima Sign & Print Ltd | Manufacturing | 2021 |
| Prozone International Limited | Wholesale & retail | 2018 |
| Prozone Logistics Ltd | Transport & logistics | 2025 |
| PRP Conversions Limited | Construction | 2024 |
| PRP Maintenance Limited | Construction | 2023 |
| PRP Portfolio Ltd | Real estate | 2026 |
| PRS (Rotherham) Ltd | Wholesale & retail | 2017 |
| PS Analytics Ltd | Information & communication | 2019 |
| PS Mangham Road Haulage Limited | Transport & logistics | 2025 |
| PS Thorp Haulage Limited | Transport & logistics | 2002 |
| PSR Turnkey Solutions Ltd. | Construction | 2022 |
| Pssc Construction Limited | Construction | 2022 |
| PST Industrial Ltd | Professional & scientific | 2016 |
| PSW Engineering Solutions Limited | Administrative & support | 2022 |
| Psyche Education & Research Centre Ltd | Information & communication | 2023 |
| PT Precision Machined Components Limited | Administrative & support | 2017 |
| PUB MAN Services Ltd | Hospitality | 2025 |
| PUB Snacks Ltd | Hospitality | 2019 |
| Pudding PIE Hill Weddings & Events Ltd | Hospitality | 2018 |
| Puddylicious Ltd | Manufacturing | 2021 |
| Pugparts Ltd | Wholesale & retail | 2025 |
| Pulse First AID Training Solutions Limited | Professional & scientific | 2010 |
| Pulse Motors Rotherham Ltd | Wholesale & retail | 2024 |
| Pumprite Ltd | Manufacturing | 2017 |
| Punch 2014 Ltd | Wholesale & retail | 2014 |
| Punia Fish Bar Limited | Hospitality | 2015 |
| Punjab Secure Logistics Ltd | Transport & logistics | 2026 |
| Punjab Whiston Ltd | Hospitality | 2026 |
| Punjabi 3 Ltd | Hospitality | 2020 |
| Puppachinos Pet Supplies Ltd | Wholesale & retail | 2025 |
| Pure Aesthetics Clinic FC Limited | Other services | 2014 |
| Pure Energy Ltd | Information & communication | 2021 |
| Purity in Care Ltd | Health & social care | 2021 |
| Purple Fabrications Ltd | Manufacturing | 2019 |
| Purple Leaf HR & Coaching Ltd | Administrative & support | 2019 |
| Purplesevenmedia Limited | Information & communication | 2020 |
| Purposeright Property Management Limited | Households | 1994 |
| Purshouse Properties Limited | Real estate | 2012 |