| Parker SC Ltd | Health & social care | 2021 |
| Parker TC Ltd | Professional & scientific | 2024 |
| Parklands Coffee Shop Ltd | Hospitality | 2016 |
| Parklands Holiday Homes Limited | Hospitality | 2021 |
| Parklands Shop Limited | Hospitality | 2020 |
| Pattison Farming | Agriculture & fishing | 2012 |
| Pattison Leisure Limited | Hospitality | 2023 |
| Paul Bennett Electrics Limited | Construction | 2023 |
| Paul Berriff Productions Limited | Information & communication | 2010 |
| Paul Broatch Car & Commercial Repairs Limited | Wholesale & retail | 1998 |
| Paul Thompson Building Contractor Limited | Construction | 2011 |
| Paul`S Gents Hairdressers Limited | Other services | 2005 |
| Pbay Inc Limited | Professional & scientific | 2021 |
| PD Smith Site Services Limited | Construction | 2015 |
| Pddesign Consulting Limited | Professional & scientific | 2005 |
| Pealie's Barn CIC | Arts & recreation | 2017 |
| Pearson Ground Care Ltd | Administrative & support | 2021 |
| Pearson Ground Services Ltd | Construction | 2021 |
| Peel Street Developments Limited | Professional & scientific | 2007 |
| Peel Street Properties Limited | Real estate | 1961 |
| Penhill Investments Limited | Real estate | 2010 |
| Pennine Energy Group Ltd | Wholesale & retail | 2018 |
| Pennine Energy Resources Ltd | Professional & scientific | 2018 |
| People Matters Ltd | Professional & scientific | 2018 |
| PEOPLE123 Limited | Administrative & support | 2016 |
| Personnel Solutions (G.B.) Limited | Administrative & support | 2001 |
| Peter M a Drummond Ltd | Professional & scientific | 2015 |
| Petextra Ltd | Extraterritorial | 2009 |
| PHARMED2U Limited | Wholesale & retail | 2009 |
| Phoenix AS Limited | Professional & scientific | 2011 |
| PIC Shoots Limited | Professional & scientific | 2017 |
| Pipeline Assure Limited | Professional & scientific | 2011 |
| PJM (Yorkshire) Limited | Construction | 2022 |
| PJT GAS Services Ltd | Energy | 2024 |
| Plainly Does IT Ltd | Wholesale & retail | 2025 |
| Plan B Advisory Ltd | Professional & scientific | 2025 |
| Pluck Music Agency Limited | Other services | 2018 |
| Plumbcraft (Yorks) Ltd | Construction | 2017 |
| Plumbing Plus of Yorkshire Limited | Construction | 2014 |
| PNP Group Limited | Construction | 2015 |
| Polaris Care & Support Ltd | Administrative & support | 2026 |
| Pollasis Vault Ltd | Wholesale & retail | 2025 |
| Pollensa Property Company Limited | Real estate | 2011 |
| Pollensa Property Rentals Limited | Real estate | 2015 |
| Poolday Residents Association Limited | Households | 1984 |
| Pop-Up Banners Limited | Administrative & support | 2012 |
| Potto Group Limited | Financial services | 2023 |
| Potto Hall Management Company Limited | Households | 2003 |
| Powder Monkey Limited | Financial services | 2014 |
| Precision Labelling Holdings Limited | Financial services | 2021 |
| Premier Property Services (North East) Limited | Construction | 1997 |
| Prest Engineering Limited | Manufacturing | 2013 |
| Preston Residential Limited | Real estate | 2024 |
| Pro-Serve Group Limited | Other services | 2025 |
| Progressive Golf Management UK Ltd | Arts & recreation | 2026 |
| Projet International Ltd | Transport & logistics | 2021 |
| Proper Tasty Northallerton Limited | Manufacturing | 2014 |
| Property by Wonders LLP | | 2019 |
| Property Easy Global UK Limited | Real estate | 2025 |
| Property Wonders Ltd | Real estate | 2019 |
| Prosperity Commercial Insurance Brokers Limited Liability Partnership | | 2011 |
| Psquare Limited | Information & communication | 2010 |
| PST Sensors Europe Limited | Professional & scientific | 2013 |
| Pullan Transport (Northern) Limited | Extraterritorial | 2009 |
| Punk Security Ltd | Information & communication | 2021 |
| Pure Canine Ltd | Other services | 2023 |
| Purple Jelly Bean Media Limited | Professional & scientific | 2026 |
| PWP Landscape Limited | Administrative & support | 2014 |
| Qcrs (North Yorkshire) Ltd | Wholesale & retail | 2023 |
| Quantum Technology Super Sensors Ltd | Professional & scientific | 2017 |
| Quickfix Gadgets Ltd | Other services | 2019 |
| R Seels & SON Ltd | Agriculture & fishing | 2014 |
| Rachael Levy Hair Restoration Ltd | Other services | 2026 |
| Radio-Active Manufacturing Limited | Manufacturing | 2009 |
| Raine Leisure Limited | Hospitality | 2017 |
| Ranmoor Engineering Services Limited | Professional & scientific | 2024 |
| Rascal Agency Limited | Information & communication | 2022 |
| Rascal Creative Limited | Professional & scientific | 2017 |
| Raymond Kassell Properties Limited | Real estate | 2021 |
| Razla Season Ltd | Hospitality | 2025 |
| Razor Clam Digital Ltd | Professional & scientific | 2024 |
| RBC Agri Ltd | Wholesale & retail | 2013 |
| RCP Holdings Limited | Financial services | 2017 |
| Rebecca Ward Healthcare Limited | Public administration | 2025 |
| Recreate Renovation Ltd | Construction | 2025 |
| Red Chilli NTH Company Ltd | Hospitality | 2025 |
| Red House Farming | Agriculture & fishing | 2011 |
| Reed Car & Commercial Ltd | Wholesale & retail | 2022 |
| Regency Eats Limited | Hospitality | 2025 |
| Regency's Pizza Northallerton Ltd | Hospitality | 2025 |
| Reloft U.K. Limited | Professional & scientific | 2019 |
| Rennison Tree Specialists Limited | Agriculture & fishing | 2014 |
| Renotech (North East) Limited | Wholesale & retail | 2005 |
| RH Publishing Limited | Professional & scientific | 2006 |
| RHB Retail Holdings Limited | Other services | 2021 |
| Richard Forster Ltd | Arts & recreation | 2011 |
| Richard Jemison Photographer Limited | Manufacturing | 2003 |
| Richard Scruton Ltd | Extraterritorial | 2009 |
| Richmond Beer Company Limited | Manufacturing | 2023 |
| Richmond Contracts NY Limited | Construction | 2026 |