| Pass N Go Driving School Limited | Education | 2012 |
| Patrick & Curry Ltd | Real estate | 2019 |
| Pattison's Process Services Limited | Manufacturing | 2007 |
| Patton Accountants Limited | Professional & scientific | 2023 |
| Paul Johnson Kitchens and Bathrooms Limited | Construction | 2020 |
| Paul Mitchison Limited | Wholesale & retail | 2010 |
| Paul Rickaby Properties Ltd | Real estate | 2016 |
| Paul Standley Car Sales Ltd | Wholesale & retail | 2002 |
| Payezy Ltd | Information & communication | 2025 |
| PC Locum Services Ltd | Professional & scientific | 2017 |
| Pclc Ltd | Construction | 2020 |
| PDL Electrical Services North East Ltd | Professional & scientific | 2023 |
| Peak Body Gym Limited | Arts & recreation | 2011 |
| Peake Heating Services Ltd | Construction | 2022 |
| Peece Ltd | Financial services | 2020 |
| Peer Hub Community Interest Company | Administrative & support | 2020 |
| Pelaw Properties Limited | Construction | 2019 |
| Pelton Fell Community Partnership | Arts & recreation | 2009 |
| Pelton Supply Stores Ltd | Wholesale & retail | 2008 |
| Penshaw Coffee Shop Ltd | Hospitality | 2007 |
| Penshaw Nursery Ltd | Wholesale & retail | 2006 |
| Percnt Ltd | Wholesale & retail | 2025 |
| Perco Foods Limited | Wholesale & retail | 2007 |
| Perco Task 1 Ltd | Wholesale & retail | 2014 |
| PERFORMANCE28 Limited | Wholesale & retail | 2019 |
| Performers Platform CIC | Arts & recreation | 2024 |
| Perivoli NCL Limited | Hospitality | 2024 |
| Perkinsville Super Store Ltd | Wholesale & retail | 2024 |
| Phairy Ltd | Information & communication | 2025 |
| PHH Consultants Ltd | Professional & scientific | 2014 |
| Phil Bell Operations Ltd | Professional & scientific | 2023 |
| Phnx Utilities Limited | Construction | 2025 |
| Phoenix West Developments Ltd | Hospitality | 2022 |
| PIA Financial Services Ltd | Financial services | 2007 |
| Piccolo Property Services Ltd | Households | 2020 |
| Pike Gaming Ltd | Wholesale & retail | 2018 |
| Pinetree Business Services Ltd | Administrative & support | 2018 |
| Pity ME Coffee Shop Ltd | Hospitality | 2013 |
| Pity ME Nursery Ltd | Wholesale & retail | 2013 |
| Pizzeria Sorrento Ltd | Hospitality | 2026 |
| Plant Hire 24/7 Ltd | Administrative & support | 2026 |
| Platinum Agility Ltd | Education | 2013 |
| Platinum Standard Properties Ltd | Administrative & support | 2024 |
| PLG Hire Ltd | Administrative & support | 2025 |
| PML Decorating Ltd | Construction | 2013 |
| PNG Driving School Limited | Education | 2019 |
| Podk Holdings UK Ltd | Financial services | 2022 |
| Pokrok 111 Limited | Real estate | 2006 |
| Poopys Boutique Handmade Ltd | Wholesale & retail | 2024 |
| Possibilities North East Limited | Other services | 2016 |
| Powersurge Limited | Administrative & support | 2023 |
| Precise English Limited | Professional & scientific | 2009 |
| Precision Coaching Birtley Ltd | Arts & recreation | 2026 |
| Precision Mastic Limited | Construction | 2013 |
| Premier Care Homes Limited | Health & social care | 1986 |
| Premier Holdings North East Limited | Real estate | 2017 |
| Premier Multidoor Systems Ltd | Manufacturing | 2008 |
| Premier Technical (Services) Limited | Manufacturing | 2014 |
| Premierlocksmiths Ltd | Other services | 2025 |
| Presence Multimedia Limited | Information & communication | 1999 |
| Prestige Bailiff Services Limited | Other services | 2017 |
| Prestige Recoveries (North East) Limited | Wholesale & retail | 2025 |
| Preston Property Management Ltd | Real estate | 2026 |
| Preston Property Sourcing Ltd | Real estate | 2026 |
| Preston’S Property Group Ltd | Financial services | 2026 |
| Printbylaser Holdings Limited | Financial services | 2024 |
| Printbylaser Limited | Manufacturing | 1997 |
| Priory Court (West Rainton) Limited | Real estate | 2012 |
| Pristine Home Improvements Ltd | Construction | 2025 |
| PRN Business Consultants Limited | Professional & scientific | 2019 |
| Pro Circuit Fire and Security Limited | Administrative & support | 2016 |
| Probitas Engineering UK Ltd | Professional & scientific | 2023 |
| Procourier Limited | Transport & logistics | 2018 |
| Project Alpha Bidco I Limited | Professional & scientific | 2023 |
| Project Management VA Ltd | Professional & scientific | 2019 |
| PROJECTH26 Ltd | Real estate | 2026 |
| Projekt 6 Holdings Limited | Financial services | 2022 |
| Projekt 6 Limited | Professional & scientific | 2020 |
| Pronta Pizza NE Ltd | Manufacturing | 2019 |
| Property Inventory Management Ltd | Information & communication | 2009 |
| Property Pronto Limited | Real estate | 2013 |
| Property Ventures JM Limited | Real estate | 2021 |
| Propperio Ltd | Real estate | 2024 |
| Proseal Roofing Services Ltd | Construction | 2024 |
| Prosport Partnership Limited | Arts & recreation | 2019 |
| Proud's Properties Ltd | Real estate | 2024 |
| Prudhoe Tyre & Battery Co. Limited | Wholesale & retail | 2023 |
| Prudhoe Tyres Ltd | Wholesale & retail | 2023 |
| PS Commissioning Services Limited | Manufacturing | 2024 |
| PSR1 Limited | Real estate | 2023 |
| Psyche Aesthetics & Holistic Therapy Ltd | Other services | 2024 |
| PTM Medical Consulting Ltd | Health & social care | 2018 |
| PU Venting Solutions Ltd | Professional & scientific | 2025 |
| Pure Glow Tanning Limited | Other services | 2023 |
| Pureglow Seaham Limited | Other services | 2025 |
| Push Wear Limited | Wholesale & retail | 2010 |
| PWM Civil Engineering Ltd | Construction | 2020 |
| Qafqainchi Ltd | Wholesale & retail | 2026 |
| QEK Consultancy Limited | Professional & scientific | 2025 |
| Qualitative Decisions of Construction & Repair Ltd | Construction | 2010 |