| Otech Limited | Wholesale & retail | 2013 |
| OTF Collective Ltd | Arts & recreation | 2023 |
| Otrix Motors Ltd | Wholesale & retail | 2025 |
| Otti & Ralph Ltd | Hospitality | 2023 |
| OUD Bros Ltd | Wholesale & retail | 2025 |
| OUR Indian (Littleborough) Ltd | Hospitality | 2025 |
| OUR Local Convenience Store Ltd | Wholesale & retail | 2023 |
| OUR Sweet Properties Limited | Real estate | 2024 |
| Outer Space Music Ltd | Arts & recreation | 2025 |
| Outlet Sale R US Ltd | Wholesale & retail | 2025 |
| Overcomers Supported Accommodation Ltd | Health & social care | 2025 |
| Overfield Investments Limited | Households | 2019 |
| Overflowing Care Limited | Health & social care | 2023 |
| Overseas Gateway Consultants Ltd | Education | 2026 |
| Owaib Limited | Wholesale & retail | 2025 |
| OX Performance Ltd | Wholesale & retail | 2026 |
| OX6 Properties Ltd | Real estate | 2025 |
| Oxide Ltd | Wholesale & retail | 2014 |
| Oxypro Life Ltd | Health & social care | 2025 |
| P I Surveying Limited | Professional & scientific | 2019 |
| P Quinn Electrical Ltd | Construction | 2020 |
| P W Granite and Quartz Ltd | Manufacturing | 2025 |
| P&F Pumps Ltd | Other services | 2022 |
| P&M Site Services Ltd | Construction | 2022 |
| P. Casey & Co., Limited | Construction | 1972 |
| P. Casey (Developments) Limited | Construction | 1974 |
| P. Casey (Land Reclamation) Limited | Construction | 1973 |
| P.A.D (Passionate About Driving) Limited | Transport & logistics | 2016 |
| P.F.B.K.Services Ltd | Professional & scientific | 2018 |
| P.Jakubiak Ltd | Transport & logistics | 2016 |
| P.K. Page GEO Transport Logistics Ltd | Transport & logistics | 2026 |
| P.N.Daly Limited | Construction | 1966 |
| P.O Property Lettings Ltd | Real estate | 2025 |
| P.Pilkington Ltd | Wholesale & retail | 2024 |
| P3 Logistics Limited | Transport & logistics | 2021 |
| PA BEE Construction Ltd | Construction | 2011 |
| Paak Watan Cargo Ltd | Transport & logistics | 2016 |
| Pacific Property NW Ltd | Other services | 2024 |
| Pacific Retail Enterprises Limited | Real estate | 2008 |
| Pacific Retail Properties Limited | Real estate | 2008 |
| Pack Support Limited | Administrative & support | 2010 |
| Pack Support Technology Limited | Administrative & support | 2017 |
| Packestic Ltd | Manufacturing | 2025 |
| Pacman Properties Limited | Real estate | 2002 |
| Paddock Court Ltd | Real estate | 2023 |
| Paddymdev Ltd | Wholesale & retail | 2026 |
| Padelone GB Ventures Limited | Arts & recreation | 2026 |
| PAG Offshore Ltd | Professional & scientific | 2023 |
| Paidtoll Limited | Transport & logistics | 2025 |
| Paint a Panel Ltd | Wholesale & retail | 2023 |
| Paints and Hardware Ltd | Wholesale & retail | 2025 |
| PAK Kashmir Cargo Services Ltd | Transport & logistics | 2015 |
| PAK Madina Cargo Ltd | Transport & logistics | 2024 |
| PAK Madina Logistics Ltd | Transport & logistics | 2024 |
| PAK Madina Services Ltd | Transport & logistics | 2025 |
| PAK UK Consultants and Immigration Services Ltd | Professional & scientific | 2021 |
| Pakeeza Dairies Holdings Ltd | Manufacturing | 2018 |
| Pakeeza Dairies Limited | Manufacturing | 2010 |
| Pakeeza Manufacturing Ltd | Administrative & support | 2020 |
| Pakkii Khabar Ltd | Information & communication | 2024 |
| Pakland Traders UK Ltd | Wholesale & retail | 2023 |
| Pakspain Walfare Ltd | Other services | 2024 |
| Palace Indian Restaurant Ltd | Hospitality | 2026 |
| Pallance Limited | Wholesale & retail | 2012 |
| Palligundai Services Limited | Real estate | 2015 |
| Panacea Business Development Ltd | Administrative & support | 2018 |
| Panacea Projects Ltd | Manufacturing | 2000 |
| Panache Products Ltd | Wholesale & retail | 2019 |
| Panda WU Ltd | Hospitality | 2020 |
| Panelcare (Rochdale) Limited | Wholesale & retail | 2004 |
| Pangaea Global Associates Limited | Administrative & support | 2014 |
| Panorama Finds Ltd | Wholesale & retail | 2023 |
| Panther Logistics Ltd | Transport & logistics | 2016 |
| Papz Kitchen (NW) Ltd | Hospitality | 2020 |
| Paracha Properties Ltd | Real estate | 2026 |
| Paradise Fruit & Vegetable Limited | Wholesale & retail | 1964 |
| Paradise Properties Rochdale Limited | Real estate | 2004 |
| Paradox IT Ltd | Information & communication | 2011 |
| Paragon Restoration Limited | Construction | 2024 |
| Parallax Investments Limited | Administrative & support | 2024 |
| Parallel Pathways Ltd | Education | 2024 |
| Parcel Line Courier Ltd | Other services | 2026 |
| Paris Street Food Limited | Hospitality | 2018 |
| Park Joinery Bespoke Ltd | Construction | 2023 |
| Parkfield Commercial Properties Ltd | Real estate | 2026 |
| Parkview Textiles Ltd | Wholesale & retail | 2025 |
| Parmoland Ltd | Hospitality | 2025 |
| Particular Properties Ltd | Real estate | 1996 |
| Party Partz Ltd | Wholesale & retail | 2026 |
| Pasha Estates Ltd | Real estate | 2018 |
| Pass IT Fast Driving School Limited | Education | 2023 |
| Pass YOU Fast Ltd | Education | 2025 |
| PASSION2SHELTER Ltd | Real estate | 2024 |
| Passmonds Communications Limited | Information & communication | 2010 |
| Passmonds Estates Limited | Real estate | 1978 |
| Passmonds Garage Ltd | Wholesale & retail | 2015 |
| Passmonds House Limited | Hospitality | 1988 |
| Patients Have Rights TOO Ltd | Professional & scientific | 2025 |
| Pattison Consultancy Services Limited | Other services | 2010 |
| Paul Barratt Limited | Professional & scientific | 2024 |