| PGS Law LLP | | 2012 |
| Philip Peterson Limited | Construction | 2016 |
| Phoenix Steel Holdings Limited | Financial services | 2013 |
| Phoenix Steel Limited | Manufacturing | 1998 |
| Phone Geeks Ltd | Other services | 2024 |
| Phone Orbit North East Limited | Other services | 2012 |
| PI Properties (North East) Limited | Real estate | 2018 |
| Pian Assets Ltd | Financial services | 2019 |
| Pingu Health Ltd | Health & social care | 2023 |
| Pinpoint Biohealth Advanced Testing and Wellness Limited | Health & social care | 2025 |
| Pinpoint Biohealth Community Interest Company | Health & social care | 2025 |
| Pinpoint Golf Ltd | Wholesale & retail | 2026 |
| Pitt Richardson Estates Limited | Real estate | 2024 |
| Pivot Building & Construction Consultancy Ltd | Professional & scientific | 2020 |
| Pixal Properties Ltd | Real estate | 2025 |
| Pizza Corner Express Ltd | Hospitality | 2025 |
| PJH NE Ltd | Construction | 2019 |
| PKS Lifting Solutions Ltd | Administrative & support | 2023 |
| PL Gill Construction Ltd | Construction | 2023 |
| PL Gill Ltd | Other services | 2018 |
| PL Group Developments Ltd | Real estate | 2012 |
| Planet Pizza (South Shields) Ltd | Hospitality | 2019 |
| Planet Pizza (Tyne Dock) Ltd | Hospitality | 2023 |
| Plasterpiece Limited | Wholesale & retail | 1997 |
| Play Fitness Limited | Wholesale & retail | 2008 |
| Plmw Limited | Construction | 2020 |
| Plough Motors Ltd | Wholesale & retail | 2014 |
| Plum Mark Ltd | Professional & scientific | 2025 |
| PM Industrial Services Ltd | Construction | 2016 |
| PMS Electrical Contractors Ltd | Construction | 2019 |
| PN (Northumberland) Consulting Limited | Professional & scientific | 2024 |
| Polarisbiddickhall Ltd | Hospitality | 2026 |
| Poly DAN Ltd | Water & waste | 2023 |
| Pool Contracts Ltd | Manufacturing | 2014 |
| Poppy's Pet Supplies Limited | Wholesale & retail | 2026 |
| Port of Tyne Logistics Limited | Extraterritorial | 2009 |
| Portberry Ltd | Real estate | 2024 |
| Portcol Ltd | Manufacturing | 2015 |
| Portgate Leisure Limited | Hospitality | 2014 |
| Positive Power Limited | Administrative & support | 2006 |
| Positivity Mind Body and Soul CIC | Education | 2024 |
| Potts Gray Management Company Ltd | Real estate | 2011 |
| Poultry Guys Ltd | Wholesale & retail | 2025 |
| Power Partnership Limited | Professional & scientific | 2019 |
| Powerhouse South Shields Ltd | Arts & recreation | 2023 |
| Pragmatica Limited | Professional & scientific | 1994 |
| Precision Turbomach Ltd | Manufacturing | 2026 |
| Premier Competitions Ltd | Other services | 2025 |
| Premier Engineering Ltd | Professional & scientific | 2023 |
| Premier Games and Competitions Ltd | Arts & recreation | 2025 |
| Premier Leisure Limited | Real estate | 2007 |
| Premier Mobile Dog Grooming Van Hire Limited | Administrative & support | 2014 |
| Premier Property Repairs Ltd | Hospitality | 2004 |
| Premier SHR Ltd | Wholesale & retail | 2021 |
| Premierwin Competitions Ltd | Arts & recreation | 2025 |
| Pressure Point Corporate Ltd | Administrative & support | 2019 |
| Prestige Cleaning Services North East Ltd | Administrative & support | 2024 |
| Prestige German Cars Limited | Wholesale & retail | 2006 |
| Preston Fabrications Ltd Ltd | Construction | 2026 |
| Preston Towers Apartments (Management Company) Limited | Households | 2025 |
| Price Grove Limited | Information & communication | 2024 |
| Prima 1 Ltd | Real estate | 2019 |
| Prime Commercial Utilities Ltd | Administrative & support | 2022 |
| Prime GAS Heating Ltd | Professional & scientific | 2026 |
| Prime Retail 367 Limited | Wholesale & retail | 2024 |
| Prime Value Wholesalers Ltd | Wholesale & retail | 2023 |
| Prime View Events Limited | Administrative & support | 2026 |
| Primeventure Retail Ltd | Other services | 2025 |
| Primrose Clothing Ltd | Wholesale & retail | 2017 |
| Prior Renovations Limited | Construction | 2006 |
| Priory Property Improvements Limited | Construction | 2013 |
| Prismix Ltd. | Wholesale & retail | 2025 |
| Prize Drop UK Ltd | Arts & recreation | 2025 |
| Pro Pellis Ltd | Health & social care | 2018 |
| Progard Limited | Administrative & support | 2019 |
| Progressive Properties North East Ltd | Other services | 2023 |
| Project Mind Ltd | Information & communication | 2024 |
| Property Gate Limited | Real estate | 2016 |
| Property Pact Limited | Real estate | 2025 |
| Proselect Resources Limited | Administrative & support | 2024 |
| Protection and Control Power Engineering Ltd | Professional & scientific | 2025 |
| Protek CNC Components Limited | Manufacturing | 2016 |
| PRS Inclusion & Training Services Ltd | Other services | 2006 |
| PRS Networks C.I.C. | Administrative & support | 2012 |
| PSP Projects NE Ltd | Real estate | 2026 |
| PT Bespoke (Harton) Limited | Wholesale & retail | 2014 |
| PT Logic Services Ltd | Information & communication | 2024 |
| PTS Lifting Ltd | Professional & scientific | 2023 |
| Punk Hound Studios Ltd | Manufacturing | 2019 |
| Punkmonkey Vape Ltd | Wholesale & retail | 2016 |
| Puntis Consulting Ltd | Professional & scientific | 2024 |
| Purehands Car Wash Ltd | Other services | 2024 |
| Purestream NE Ltd | Administrative & support | 2025 |
| Purvis HV Engineering Limited | Construction | 2015 |
| PUTT2WIN Ltd | Manufacturing | 2022 |
| QL Tandoori Ltd | Hospitality | 2023 |
| QMC Mill DAM Limited | Households | 1996 |
| QPX Resourcing Ltd | Administrative & support | 2016 |
| Quad Shipment Ltd | Wholesale & retail | 2025 |
| Quality Care North East Limited | Administrative & support | 2024 |