| Pro PR Logistics Limited | Transport & logistics | 2018 |
| Pro-Fix Plumbing & Heating Ltd | Construction | 2015 |
| Professor Plumb TC Ltd | Construction | 2026 |
| Project Genesis (Berry Edge) Nominee Limited | Real estate | 1994 |
| Project Genesis Limited | Construction | 1993 |
| Project Genesis Management Company Limited | Other services | 1994 |
| Project Genesis Nominees Limited | Real estate | 1994 |
| Project Unlimited Ltd | Professional & scientific | 2024 |
| Projects 'R' US Ltd | Professional & scientific | 2025 |
| Prokey Network Ltd | Financial services | 2016 |
| Promo Press Ltd | Manufacturing | 2025 |
| Promotiontime NE Limited | Construction | 2004 |
| Property by C&M Ltd | Real estate | 2024 |
| Property Inventory Inspections & Management Limited | Real estate | 2021 |
| Property Investments North East Ltd | Real estate | 2018 |
| Propitch Services Ltd | Construction | 2020 |
| PS Hire Ltd | Transport & logistics | 2017 |
| Psbc Ltd | Administrative & support | 2024 |
| PSJ Electrical Engineers Ltd | Construction | 2013 |
| PSJ Netsuite Solutions Limited | Information & communication | 2023 |
| Psychedenology Limited | Professional & scientific | 2022 |
| Puddles Leisure Limited | Hospitality | 2019 |
| Pukka Properties Limited | Households | 2001 |
| Pulse Inspection Ltd | Professional & scientific | 2015 |
| Punchdole Services Ltd | Administrative & support | 2016 |
| Pure Accountancy Ltd | Professional & scientific | 2021 |
| Pure Wind Ltd | Professional & scientific | 2025 |
| PWS Architecture & Design Ltd | Professional & scientific | 2021 |
| Q C 168 Ltd | Hospitality | 2024 |
| Qatar World Property Limited | Information & communication | 2018 |
| Quality First Care Services Ltd | Real estate | 2018 |
| Quattro 21 Ltd | Professional & scientific | 2024 |
| Quayside Tattoo Company Newcastle Ltd | Other services | 2023 |
| Queensgate Rhinology Centre Limited | Health & social care | 2016 |
| Quest Marketing Ltd | Professional & scientific | 2025 |
| R C Property Development Ltd | Households | 2018 |
| R Cass NDT Solutions Ltd | Professional & scientific | 2020 |
| R T Plumbing Limited | Construction | 2026 |
| R&N Group Ltd | Hospitality | 2026 |
| R.I. Accomodation & Support Ltd | Real estate | 2004 |
| R.L Ediebell Limited | Real estate | 2018 |
| R.Philo Limited | Health & social care | 2025 |
| Raenem Contracting Services Limited | Construction | 2020 |
| Rage IT OUT Ltd | Arts & recreation | 2025 |
| Ramsey Human Resources Limited | Other services | 2007 |
| Rangos N.E Ltd | Hospitality | 2023 |
| Ravendale Foods Limited | Manufacturing | 1982 |
| Ravendale North West Limited | Administrative & support | 2010 |
| Rawr Metrology Ltd | Professional & scientific | 2018 |
| RAY Lambert Building Services Limited | Construction | 2011 |
| RD & S Harrison Ltd | Construction | 2020 |
| RDS Safety Decking (NE) Ltd | Construction | 2020 |
| RE-4ORM Property Services Ltd | Construction | 2023 |
| Reaction Fireworks Limited | Professional & scientific | 2006 |
| Readles KX Limited | Real estate | 2024 |
| Real Care Ltd | Education | 2004 |
| Realta Family Investments Limited | Financial services | 2026 |
| Redemption Foods 2 Limited | Manufacturing | 2022 |
| Redlink NE Ltd | Transport & logistics | 2016 |
| Regan Bell Flooring Specialist Ltd | Construction | 2024 |
| Reggie's Motors Ltd | Wholesale & retail | 2023 |
| Relmans North East Ltd | Wholesale & retail | 2018 |
| Remote Right Hand Ltd | Administrative & support | 2023 |
| Rennoldson Inspection Services Ltd | Professional & scientific | 2016 |
| Rescue North East Ltd | Education | 2013 |
| Reservoirs and Dams Limited | Construction | 2024 |
| Reset Human Ltd | Wholesale & retail | 2025 |
| Resting Paws Ltd | Administrative & support | 2022 |
| Restoration Response Ltd | Other services | 2010 |
| Retro Motorsport Limited | Wholesale & retail | 2011 |
| Revivals Bar Consett Ltd | Hospitality | 2026 |
| Revolution Contracts Limited | Construction | 2023 |
| RH NDT Services Ltd | Professional & scientific | 2014 |
| Richard Eyers Limited | Professional & scientific | 2022 |
| Richardson Surveying & Architecture Limited | Professional & scientific | 2018 |
| Right Choice Bookkeeping Ltd | Professional & scientific | 2023 |
| Rileys Electrical Services Ltd | Construction | 2026 |
| Rise Above Scaffolding Solutions Ltd | Construction | 2025 |
| Riveford Trading Limited | Financial services | 2018 |
| River Valley Developments Ltd | Real estate | 2005 |
| RJH Solution Services Ltd | Construction | 2018 |
| RJM Decorators Limited | Construction | 2017 |
| RM Products Ltd | Wholesale & retail | 2019 |
| RMM Capital Management Ltd | Real estate | 2025 |
| Rmnv Ltd | Real estate | 2023 |
| Roadhouse Inns Ltd | Hospitality | 2010 |
| Robgyt Limited | Information & communication | 2025 |
| Robinson Accountancy Services Limited | Professional & scientific | 2021 |
| Robson Bros Properties Ltd | Real estate | 2023 |
| Robyn&Reg Limited | Wholesale & retail | 2020 |
| Rock 'N' Roll Campers NE Ltd | Manufacturing | 2021 |
| Rock N Roll Camper Roofs Ltd | Manufacturing | 2024 |
| Rock UP Holdings Ltd | Real estate | 2025 |
| Rock UP Racing Limited | Arts & recreation | 2025 |
| Root & Rise Education Ltd | Education | 2025 |
| Rostich Leisure Limited | Hospitality | 2015 |
| RR Coffee Service and Repair Ltd | Manufacturing | 2025 |
| RR Consultancy and Training Ltd | Professional & scientific | 2018 |
| RS Cargo Truck Transport Ltd | Transport & logistics | 2025 |
| RSJ Solutions Limited | Construction | 2026 |