| Paprika Flavours (Carlisle) Ltd | Hospitality | 2019 |
| Parabola Workshops Limited | Manufacturing | 2013 |
| Paradigm Properties (North) Limited | Real estate | 2024 |
| Paragon Properties (Cumbria) Limited | Real estate | 2017 |
| Paragonvet Holdings Limited | Financial services | 2026 |
| Paragonvet Limited | Professional & scientific | 2002 |
| Paramount Legal Costs Limited | Professional & scientific | 2007 |
| Parcel Parcel Ltd | Transport & logistics | 2020 |
| Parcelstown Limited | Hospitality | 2020 |
| Parish Homes Limited | Construction | 2015 |
| Park Fisheries (Workington) Ltd | Hospitality | 2022 |
| Park, Gate and Company Limited | Construction | 1946 |
| Parkland Court Management Limited | Households | 2003 |
| Parkland Herefords | Agriculture & fishing | 2015 |
| Parklands Carlisle | Real estate | 2012 |
| Parkside Combined Technical Services Limited | Construction | 2013 |
| Parsons Developments Limited | Real estate | 2018 |
| Partnering in Property Management Holdings Limited | Professional & scientific | 2003 |
| Partnering in Property Management Limited | Administrative & support | 2002 |
| Party FUN Ltd | Arts & recreation | 2010 |
| Pasha UK Barber Ltd | Other services | 2025 |
| Pasnin Limited | Other services | 2025 |
| PAT Madden Limited | Professional & scientific | 2017 |
| Paterson Developments Limited | Construction | 2017 |
| Paton Homes Limited | Construction | 2002 |
| Pattinson Property Ltd | Real estate | 2024 |
| Paul Barber Commodities Limited | Agriculture & fishing | 2014 |
| Paul Barber Nutrition Limited | Professional & scientific | 2010 |
| Paul Bell (Oxford) Ltd | Real estate | 2021 |
| Paul Bell Properties Limited | Real estate | 2024 |
| Paul Chuter Agricultural Services Limited | Wholesale & retail | 2003 |
| Paul Douglas General Building & Groundworks Limited | Construction | 2015 |
| Paul Laidlaw Limited | Wholesale & retail | 2011 |
| Paul Thompson Joinery Limited | Construction | 2015 |
| Paul Treston Ltd | Agriculture & fishing | 2018 |
| Paula’S Medical Aesthetics Limited | Health & social care | 2023 |
| Payroll in a Box Ltd | Information & communication | 2019 |
| Payworx Limited | Professional & scientific | 2022 |
| PB Leisure and Training Solutions Ltd | Wholesale & retail | 2013 |
| PB Sports (Cumbria) Limited | Wholesale & retail | 2010 |
| PCB Stores Ltd | Wholesale & retail | 2017 |
| PCS Medicare Ltd | Manufacturing | 2025 |
| PDC Holdings Limited | Financial services | 2005 |
| PE TCG Ltd | Wholesale & retail | 2025 |
| Peacock Engineering Limited | Information & communication | 2009 |
| Peacock Engineers Limited | Professional & scientific | 2025 |
| Peacock Equipment Hire Ltd | Administrative & support | 2025 |
| Peacock Farms | Agriculture & fishing | 2025 |
| Peacock Precision Holdings Limited | Financial services | 2024 |
| Peacock Precision Services Limited | Professional & scientific | 2018 |
| Peacock Properties North Limited | Real estate | 2024 |
| Pears House Limited | Households | 2013 |
| Pearson and Cuthbert Property Developments Limited | Construction | 2004 |
| Pearson Farm Supplies Limited | Wholesale & retail | 2007 |
| Pedigree Budgerigars Limited | Wholesale & retail | 2013 |
| Pedigree Livestock Services Limited | Other services | 2020 |
| Peel and Little Agricultural Engineering Ltd | Manufacturing | 2025 |
| Peepy Farm Limited | Agriculture & fishing | 2018 |
| Pelaiah Trading Ltd | Professional & scientific | 2025 |
| Pelicano House Ltd | Hospitality | 2014 |
| Pellegrinolets Limited | Real estate | 2021 |
| PEM Soft Limited | Information & communication | 2024 |
| Pendleton Grange (24 Tintagel Way) Management Company Limited | Real estate | 2019 |
| Pendleton Grange Management Company Limited | Households | 2016 |
| Pennco Limited | Hospitality | 2003 |
| Pennine Joinery (Cumbria) Limited | Construction | 2026 |
| Pennine Pods Ltd | Manufacturing | 2016 |
| Pennine Training Hub Ltd | Education | 2026 |
| Pennine View (Calthwaite) Management Company Limited | Households | 2022 |
| Pennine View Management Company Limited | Households | 2002 |
| Penrhiw Limited | Agriculture & fishing | 2021 |
| Penrith Joinery Contractors Limited | Construction | 2012 |
| Penrith Plant Limited | Administrative & support | 2015 |
| Penrith Waste Ltd | Water & waste | 2025 |
| People First Independent Advocacy | Administrative & support | 2005 |
| People Plant Trees CIC | Agriculture & fishing | 2024 |
| Percussion Masters Limited | Arts & recreation | 2017 |
| Perfect Civils & Groundwork Limited | Construction | 2025 |
| Performance Bikes (Cumbria) Limited | Wholesale & retail | 2021 |
| Permit Trainers Association Limited(The) | Arts & recreation | 1973 |
| Petark Consulting Limited | Professional & scientific | 2009 |
| Petark Limited | Wholesale & retail | 1942 |
| Peter Allison Auto Repairs Limited | Wholesale & retail | 2005 |
| Peter Barlow Photography Limited | Arts & recreation | 2003 |
| Peter Fleming & Associates Ltd | Professional & scientific | 2014 |
| Peter Hind Flooring Limited | Construction | 2014 |
| Peter Lawton Limited | Real estate | 1991 |
| Peter Tyson | Wholesale & retail | 2010 |
| Peter Watson (Cumbria) Limited | Extraterritorial | 2002 |
| Petrotect Ltd | Construction | 2012 |
| Petterill Depot Ltd | Real estate | 2025 |
| Pewag Forestry UK Ltd | Agriculture & fishing | 2023 |
| PH Rail Services Ltd | Construction | 2018 |
| Pharm Farm Limited | Professional & scientific | 2021 |
| Pharmagenix Limited | Extraterritorial | 2009 |
| Phil Glover Consulting Limited | Real estate | 2017 |
| Phil Short Electrical Limited | Construction | 2012 |
| Philip a Gardiner Limited | Other services | 2025 |
| Philip Waugh Golf Ltd | Arts & recreation | 2018 |
| Phillips-Van Belzen Cycles Limited | Wholesale & retail | 2019 |