| Play Glossop Ltd | Arts & recreation | 2025 |
| Play Learn & Grow Limited | Health & social care | 2014 |
| Play Oldham Ltd. | Arts & recreation | 2004 |
| Players Oldham Ltd | Hospitality | 2023 |
| Plazza Ltd | Wholesale & retail | 2023 |
| Plcinvestigations Ltd | Administrative & support | 2019 |
| PLD Consultancy Ltd | Administrative & support | 2023 |
| PLG Property Holdings Limited | Real estate | 2020 |
| PLJ Risk Management Ltd | Financial services | 2019 |
| Ploutos Worldwide Limited | Wholesale & retail | 2024 |
| PLT Solutions Limited | Real estate | 2014 |
| Plumpton Clough Ltd | Arts & recreation | 2012 |
| Plus Dent Limited | Health & social care | 2025 |
| Plush Beauty Ltd | Wholesale & retail | 2016 |
| Plush Global Ltd | Wholesale & retail | 2016 |
| Plusvalley Limited | Real estate | 2009 |
| PLY Lining Van Shop Limited | Manufacturing | 2022 |
| PM & Sons Properties Limited | Real estate | 2007 |
| PM Autobodies Ltd. | Manufacturing | 2021 |
| PM Borg Ltd | Health & social care | 2017 |
| PMD Land Developments Ltd | Real estate | 2015 |
| PMD Lettings Ltd | Health & social care | 2015 |
| PMD Ortho Ltd | Health & social care | 2014 |
| PMG Risk Solutions Ltd | Professional & scientific | 2015 |
| PMK Retail Ltd | Administrative & support | 2011 |
| PMS Decor Ltd | Construction | 2025 |
| PMV Consulting Ltd | Information & communication | 2022 |
| Pnksales Ltd | Wholesale & retail | 2026 |
| PNL Property and Consultancy Ltd | Real estate | 2021 |
| Pobgreen Estates Limited | Real estate | 2026 |
| Pogson & Armitage Limited | Other services | 1963 |
| Point Blank Manchester Limited | Arts & recreation | 2023 |
| Point Focus Ltd | Wholesale & retail | 2015 |
| Point of View Photography Ltd | Professional & scientific | 2011 |
| Pointax Accountants Limited | Professional & scientific | 2017 |
| Pol-Int Limited | Professional & scientific | 2009 |
| Polar Projects Limited | Construction | 2018 |
| Polder Properties Ltd | Real estate | 2019 |
| Pole Travel Limited | Administrative & support | 2010 |
| Poleongoal Logistic Ltd | Transport & logistics | 2023 |
| Polinessa Ltd | Wholesale & retail | 2021 |
| Polish Taste Ltd | Wholesale & retail | 2020 |
| Pollard Interiors Limited | Wholesale & retail | 2024 |
| Pollies Ltd | Administrative & support | 2016 |
| Pollnn Ltd | Real estate | 2019 |
| Polmedica Ltd | Health & social care | 2016 |
| Polonia Youth Network CIC | Education | 2026 |
| Polski Skelp Limited | Wholesale & retail | 2024 |
| Polymeric Digital Labels & Brands LLP | | 2009 |
| Polymeric Digital Labels Ltd | Manufacturing | 2026 |
| Polymeric Labels Holdings Limited | Financial services | 2015 |
| Polymeric Property Limited | Hospitality | 2012 |
| Pomi Hire Limited | Transport & logistics | 2026 |
| POP Supplements Ltd | Wholesale & retail | 2024 |
| Popoqo Ltd | Wholesale & retail | 2021 |
| Portcullis Hollinwood Limited | Administrative & support | 2019 |
| Portcullis Oldham Limited | Energy | 2020 |
| Porter and Gunn Associates Ltd | Professional & scientific | 2017 |
| Porter Legal Consultancy Ltd | Professional & scientific | 2023 |
| Portland Court Management (Sheffield) Limited | Households | 1982 |
| Portmain Investments Ltd | Professional & scientific | 2001 |
| Portmore Empire Ltd | Professional & scientific | 2024 |
| Portraits of Recovery | Arts & recreation | 2011 |
| Portridge Green Limited | Arts & recreation | 2013 |
| Positive Energy Solutions Limited | Other services | 2019 |
| Positive Steps Oldham | Administrative & support | 1990 |
| Poster Booking Ltd | Information & communication | 2020 |
| Posttech Ltd | Transport & logistics | 2016 |
| Poundzone (North West) Limited | Wholesale & retail | 2010 |
| Pout Collections Limited | Wholesale & retail | 2019 |
| Powder Power Limited | Wholesale & retail | 2026 |
| Powell.S (Oldham) Limited | Real estate | 1961 |
| Power Nutrition Ltd | Wholesale & retail | 2025 |
| Power Property Lettings Limited | Real estate | 2019 |
| Power Sports Consulting Ltd | Professional & scientific | 2023 |
| Power Supplements Ltd | Health & social care | 2024 |
| Power System Invest Limited | Real estate | 2009 |
| Power Transmission Services Limited | Wholesale & retail | 1998 |
| Power X Limited | Information & communication | 2017 |
| Powerhouse Business Finance Limited | Financial services | 2020 |
| Powermill Oldham Ltd | Other services | 2018 |
| Powerplay Brands Limited | Wholesale & retail | 2007 |
| Powertech IT Ltd | Information & communication | 2014 |
| Pozmatic Limited | Arts & recreation | 2022 |
| PP Fencing Ltd | Manufacturing | 2020 |
| PP Textiles Ltd | Manufacturing | 2019 |
| PPC Concrete Products Ltd | Administrative & support | 2019 |
| PPK Consultancy Ltd | Health & social care | 2024 |
| Pramu Solutions Ltd | Health & social care | 2023 |
| Praxisgb Limited | Professional & scientific | 2025 |
| Precious Stone CIC | Other services | 2021 |
| Precision 21 Limited | Professional & scientific | 2007 |
| Precision Components & Equipment Limited | Manufacturing | 1957 |
| Precision Facility Solutions Ltd | Manufacturing | 2024 |
| Precision Heat Sensors Limited | Manufacturing | 2012 |
| Precision Heat SENSORS1 Ltd | Manufacturing | 2017 |
| Precision Pallets & Cases Limited | Manufacturing | 2013 |
| Precision Pipeline Services Ltd | Professional & scientific | 2019 |
| Precision Pneumatic Services Ltd | Professional & scientific | 2023 |
| Precision Poured Concrete Limited | Administrative & support | 2006 |