| Peacocks Medical Group Limited | Manufacturing | 1956 |
| Peak Marketing Limited | Wholesale & retail | 2018 |
| Peak Technology Metals Limited | Mining & quarrying | 2018 |
| Peake Performance Sports Limited | Wholesale & retail | 2019 |
| Peakwealth Limited | Professional & scientific | 1987 |
| Pearces Private Hire Ltd | Transport & logistics | 2009 |
| Pearl Accountancy Ltd | Professional & scientific | 2025 |
| Pearl Lake NE Ltd | Hospitality | 2023 |
| Pearl Resource Medical Limited | Wholesale & retail | 2022 |
| Pearlforge Limited | Professional & scientific | 2025 |
| Pears Property Limited | Real estate | 2014 |
| Pearson Carter Limited | Administrative & support | 2016 |
| Pearson Caulfield Limited | Professional & scientific | 2011 |
| Pearson Engineering Limited | Manufacturing | 1985 |
| Peartree Garage Services Ltd | Wholesale & retail | 2025 |
| Peartree Mews Management Company Limited | Real estate | 2001 |
| Peartree MOT Centre Ltd | Wholesale & retail | 2013 |
| PEC Cars Ltd | Transport & logistics | 2026 |
| Pecks House Leisure Limited | Real estate | 1989 |
| Pecuniary Aquila Limited | Wholesale & retail | 2012 |
| Pedal Parts Ltd | Wholesale & retail | 2012 |
| Peejayeff Services Limited | Information & communication | 2013 |
| Peek Home Ltd | Professional & scientific | 2020 |
| Peel House (Ponteland) Management Limited | Households | 2012 |
| Peel House Management Limited | Households | 1986 |
| Peel Park Practice Limited | Health & social care | 2020 |
| Peel Psychological Consultancy Ltd | Health & social care | 2012 |
| Peelings & Pips Limited | Wholesale & retail | 2003 |
| Peep Ltd | Information & communication | 2014 |
| Pegasus MED Ltd | Wholesale & retail | 2021 |
| Pegs Pre-School Ltd | Education | 2018 |
| Pelaw Packaging Limited | Administrative & support | 2012 |
| Peldon Ltd | Real estate | 2020 |
| Pele Tower Limited | Hospitality | 2022 |
| Pelena Limited | Wholesale & retail | 2012 |
| Pelican Care Ltd | Health & social care | 2021 |
| Pellar Technologies Limited | Information & communication | 2025 |
| PEN Torch Limited | Information & communication | 2016 |
| Penda Financial Management Ltd | Financial services | 2007 |
| Pendeford Housewares Limited | Wholesale & retail | 2020 |
| Pendemoor Mews Management Company Limited | Real estate | 1984 |
| Penderic Limited | Wholesale & retail | 1997 |
| Pendlecroft Limited | Real estate | 1994 |
| Pendower Hall Ltd. | Construction | 2015 |
| Pendower Hall Management Company Limited | Real estate | 2025 |
| Peninsula Land & Property Group Holdings Ltd | Other services | 2019 |
| Penn Street Managements Limited | Real estate | 2018 |
| Penny Arora Ltd | Real estate | 2020 |
| Penny Graham Financial Services Ltd | Financial services | 2009 |
| Penny Lane Credit Services Ltd | Financial services | 2018 |
| Penny POT Lane (Harrogate) Management Company Limited | Real estate | 2018 |
| Penny's (Morpeth) Ltd | Wholesale & retail | 2014 |
| Penshaw Manor Block 2 Property Management Limited | Real estate | 2006 |
| Penshaw Manor Block 3 Property Management Limited | Real estate | 2011 |
| Pentest Consultants Limited | Information & communication | 2024 |
| Penthouse Design Limited | Professional & scientific | 2021 |
| Penultimate Power UK Limited | Energy | 2012 |
| People and Environment Academy CIC | Education | 2025 |
| People First Care (Rennington) Limited | Health & social care | 2024 |
| People First Care (Wooler) Limited | Health & social care | 2020 |
| People Gauge Limited | Administrative & support | 2011 |
| People Maps Recruitment Limited | Professional & scientific | 2015 |
| Pep-Icd Ltd | Professional & scientific | 2023 |
| Peppercorns Limited | Construction | 2000 |
| Peppers PUB Company Ltd | Hospitality | 2024 |
| Peptidal Ltd | Wholesale & retail | 2025 |
| Perception Training Academy Ltd | Education | 2023 |
| Percy Street Ltd | Hospitality | 2022 |
| Perdix Valley Ltd | Agriculture & fishing | 2021 |
| Peregal Property Limited | Financial services | 2023 |
| Peregrine Access Ltd | Construction | 2024 |
| Perfect 10 (North) Limited | Other services | 2013 |
| Perfect 4 Pizza Ltd | Hospitality | 2018 |
| Perfect Decoration CC Ltd | Construction | 2025 |
| Perfect Golden Chippy (West Road) Ltd | Hospitality | 2023 |
| Perfect Hire Global Recruitment Ltd | Administrative & support | 2024 |
| Perfect Pair Properties Ltd | Real estate | 2026 |
| Perfect Pizza N.A Ltd | Hospitality | 2023 |
| Perfect Produce Ltd | Agriculture & fishing | 2013 |
| Perfect Sunshine Ltd | Real estate | 2017 |
| Perfectly Clean North East Ltd | Administrative & support | 2022 |
| Perfectrange Ltd | Wholesale & retail | 2010 |
| Performance Horizon Group Limited | Information & communication | 2010 |
| Performante Auto Spa Ltd | Administrative & support | 2022 |
| Peri Peri Island Limited | Hospitality | 2025 |
| Peritus Corporate Finance Limited | Financial services | 2014 |
| Peritus Private Finance Limited | Financial services | 1998 |
| Perma Luxe Ltd | Other services | 2023 |
| Peromac Limited | Professional & scientific | 2022 |
| Perro Design and Communications Limited | Professional & scientific | 2003 |
| Persepolis Architecture Limited | Professional & scientific | 2010 |
| Persia Newcastle Limited | Hospitality | 2023 |
| Persian Golden Grill Limited | Hospitality | 2025 |
| Persian Munchies Ltd | Hospitality | 2024 |
| Person Centred Healthcare Ltd | Information & communication | 2026 |
| Personal Angel LLP | | 2014 |
| Personal Development Academy Ltd | Health & social care | 2019 |
| Perumal Private Ltd | Wholesale & retail | 2025 |
| Peshawari Chai Khana Ltd | Hospitality | 2025 |
| Pest Arrest Ltd | Administrative & support | 2010 |