| Pick Service UK Limited | Transport & logistics | 2022 |
| Pickday Ltd | Information & communication | 2026 |
| Pickpocket Media Ltd | Wholesale & retail | 2025 |
| Pickwick Cross Ltd | Professional & scientific | 2015 |
| Piece by Piece Training Solutions Ltd | Professional & scientific | 2025 |
| Pigdon Farm Limited | Agriculture & fishing | 2007 |
| Piggygarden Ltd | Wholesale & retail | 2022 |
| Pigment Press Ltd | Arts & recreation | 2024 |
| PIH 1 Limited | Real estate | 2023 |
| Pikacu Ltd | Financial services | 2026 |
| Pikku Hair Ltd. | Other services | 2011 |
| Pikup Sports Ltd | Arts & recreation | 2025 |
| Pilatease CIC | Health & social care | 2025 |
| Pilatease Denton Ltd | Education | 2021 |
| Pilatease Training School Ltd | Education | 2025 |
| Pilates and Yoga Studio Ltd | Other services | 2019 |
| Pilgrim Music Newcastle CIC | Arts & recreation | 2026 |
| Pilgrimtech Ltd | Professional & scientific | 2026 |
| Pimlico Court Durham Management Ltd | Households | 2024 |
| Pimms and Needles North Durham CIC | Other services | 2023 |
| Pims of London Limited | Professional & scientific | 2006 |
| Pinakiindia Limited | Hospitality | 2024 |
| Pinar (N.E) Limited | Hospitality | 2024 |
| Pinar Butchers Limited | Wholesale & retail | 2025 |
| Pinball Films Limited | Information & communication | 1999 |
| Pine 59CW Ltd | Real estate | 2024 |
| Pinetree Health and Fitness Limited | Arts & recreation | 2004 |
| Ping Holdings Limited | Professional & scientific | 2020 |
| Ping LEE Limited | Hospitality | 2015 |
| Ping Limited | Information & communication | 2026 |
| Ping on Investments Limited | Hospitality | 1998 |
| Pink and Green Ltd | Health & social care | 2018 |
| Pink Boutique Limited | Wholesale & retail | 2012 |
| Pink Elephant Property Ltd | Real estate | 2020 |
| Pink Elephant Psychological Services Ltd | Education | 2024 |
| Pink Flamingos on Board Limited | Administrative & support | 2025 |
| Pink Impression Limited | Manufacturing | 2014 |
| Pink Lane Bakery Ltd | Manufacturing | 2025 |
| Pink Panther Recruitment Ltd | Administrative & support | 2025 |
| Pinkcrow Ltd | Wholesale & retail | 2020 |
| Pinkhippo Health & Beauty Ltd | Wholesale & retail | 2015 |
| Pinnacle Cares for YOU Limited | Health & social care | 2017 |
| Pinnacle Offshore Services Limited | Professional & scientific | 2019 |
| Pinner Holdings Limited | Real estate | 2021 |
| Pint Sized Games Limited | Wholesale & retail | 2024 |
| Pioneer Contracting Solutions Ltd | Construction | 2023 |
| Pioneer Performance Ltd. | Arts & recreation | 2016 |
| Pioneer Shippers Ltd | Wholesale & retail | 2025 |
| Pioneeres Ltd | Health & social care | 2010 |
| Pioneering Design Limited | Professional & scientific | 2016 |
| PIP Design Studio Ltd | Professional & scientific | 2025 |
| Pipe Coil Dynamics Ltd | Professional & scientific | 2016 |
| Pipe Services (NE) Ltd | Construction | 2012 |
| Pipeline Integrity Engineers Limited | Professional & scientific | 1997 |
| Piper Scarlett Davies Ltd | Health & social care | 2025 |
| Pippa NE Ltd | Construction | 2014 |
| Pipsingh Ltd | Real estate | 2023 |
| Piquant Technologies LLP | | 2013 |
| Piranha Business Intelligence Limited | Information & communication | 2021 |
| Piranha Print (Jesmond) Ltd | Professional & scientific | 2017 |
| Pirates Dive Club Ltd. | Arts & recreation | 2020 |
| Pirates Rebreather Ltd. | Education | 2019 |
| Pirozzi Limited | Hospitality | 2026 |
| Pisces Devices Ltd | Manufacturing | 2026 |
| Pitch Property Events Limited | Administrative & support | 2024 |
| Pitched Events Limited | Hospitality | 2022 |
| Pitlochry Investments Limited | Real estate | 2006 |
| Pitreavie Castle Limited | Real estate | 2022 |
| Pits & Politics Festivals Ltd | Other services | 2018 |
| Pitt West END Limited | Hospitality | 2014 |
| Pittsburgh Properties Ltd | Real estate | 2024 |
| Pivot Consultancy Ltd | Professional & scientific | 2026 |
| Pivotal Healthcare Education Limited | Education | 2017 |
| Pivotal London Ltd | Administrative & support | 2014 |
| Pixel House Media Limited | Professional & scientific | 2012 |
| Pixel-Perfect Digital Ltd | Professional & scientific | 2016 |
| Pixlserv Ltd | Construction | 2023 |
| Pixx Media Ltd | Professional & scientific | 2017 |
| Pizmo Holdings Limited | Health & social care | 2023 |
| Pizza 4 YOU Benton Road Limited | Hospitality | 2025 |
| Pizza 4 YOU High Heaton Ltd | Hospitality | 2025 |
| Pizza and Co City Ltd | Hospitality | 2019 |
| Pizza Box F Ltd | Hospitality | 2022 |
| Pizza Box SR Ltd | Hospitality | 2022 |
| Pizza Experience Co Ltd | Hospitality | 2020 |
| Pizza Garden (NE) Ltd | Hospitality | 2024 |
| Pizza Kinz Kenton Ltd | Hospitality | 2024 |
| Pizza NE1 Ltd | Hospitality | 2024 |
| Pizza Pizza NE Ltd | Hospitality | 2025 |
| Pizza Rooyale Alnwick Ltd | Other services | 2020 |
| Pizza Shop Ltd | Hospitality | 2026 |
| Pizza Spot PVT Ltd | Hospitality | 2025 |
| Pizza Tyne Ltd | Wholesale & retail | 2020 |
| Pizza's N More Limited | Hospitality | 2025 |
| Pizzadaddyuk Ltd | Hospitality | 2019 |
| PIZZAHOLIC32 Ltd | Hospitality | 2026 |
| Pizzeria Santana Limited | Hospitality | 2004 |
| PJ Travelco Ltd | Administrative & support | 2025 |
| PJ Tyres Ltd | Wholesale & retail | 2019 |
| PJ Welding Limited | Construction | 2006 |