| Northeast Futsal Partnership Limited | Arts & recreation | 2016 |
| Northeast Thermocouple Sensors Limited | Administrative & support | 2004 |
| NP Plant Repairs Limited | Manufacturing | 2024 |
| Oak Engineering Co. Limited | Manufacturing | 1980 |
| Oak Engineering Group Ltd | Manufacturing | 2024 |
| Oak Engineering Management Services Ltd | Professional & scientific | 2026 |
| Oak Fabrication & Engineering Services Ltd | Manufacturing | 2026 |
| Oak Storage Limited | Construction | 2026 |
| Obsidian (NE) Limited | Professional & scientific | 2023 |
| OCB Accountancy Ltd | Professional & scientific | 2024 |
| Olive & Oak Estates Limited | Real estate | 2026 |
| Omniquant Ltd | Professional & scientific | 2024 |
| One Quote Property Maintenance Ltd | Other services | 2013 |
| One World One Game Limited | Arts & recreation | 2007 |
| Only Interiors Ltd | Construction | 2025 |
| Onpoint ICT Solutions Ltd | Information & communication | 2020 |
| P J Electronic Services Limited | Manufacturing | 2005 |
| P L Sorrell Limited | Professional & scientific | 2020 |
| P W G Site Services Ltd | Professional & scientific | 2023 |
| P&C Retail Services Ltd | Wholesale & retail | 2025 |
| P.S. Morris Limited | Other services | 2010 |
| Pafcio Ltd | Transport & logistics | 2024 |
| Paints for Industry Ltd | Manufacturing | 2019 |
| PAR Inspection Services Ltd | Professional & scientific | 2021 |
| Paris Dress House Ltd | Wholesale & retail | 2020 |
| Parknell Ltd | Real estate | 2016 |
| Paul B Rigging Ltd | Construction | 2025 |
| Paul George Lake Limited | Extraterritorial | 2025 |
| Paul Lowe Plumbing & Heating Limited | Construction | 2023 |
| Peak Scaffolding NE Ltd | Construction | 2026 |
| Peninsula Lawn Limited | Hospitality | 2022 |
| Perfect 10 Beauty Ltd | Other services | 2025 |
| Permatt Fork Lift Trucks Limited | Administrative & support | 1999 |
| Permatt Fork Truck Rentals Limited | Administrative & support | 2009 |
| Peter Thomas Logistics Ltd | Transport & logistics | 2026 |
| PH Consultants Ltd | Hospitality | 2023 |
| Phoenix HR Consulting Limited | Administrative & support | 2023 |
| Picture Wizard Events Ltd | Professional & scientific | 2023 |
| Pioneer Property Development Limited | Construction | 2021 |
| PL Fire Protection Ltd | Construction | 2022 |
| Polarstar UAS Holdings Limited | Administrative & support | 2024 |
| Preferred Holdings Limited | Financial services | 2026 |
| Preferred Management Solutions (PMS) Ltd | Construction | 2010 |
| Preferred Property Solutions (PPS) Ltd | Real estate | 2010 |
| Preferred Repair Solutions Limited | Other services | 2026 |
| Preloved Kicks Ltd | Wholesale & retail | 2026 |
| Premier Asbestos Services Limited | Construction | 2013 |
| Premier Scaffolding Services Contracts Limited | Construction | 2013 |
| Premier Scaffolding Services Limited | Construction | 1996 |
| Pretty Mama Limited | Manufacturing | 2018 |
| PT Art & Vape Station Ltd | Construction | 2024 |
| PXR Network Ltd | Information & communication | 2023 |
| QMS PR Ltd | Professional & scientific | 2024 |
| Quality Environmental Management Systems Limited | Professional & scientific | 1995 |
| R&G Property Ltd | Real estate | 2025 |
| R&R Electrical NE Limited | Construction | 2025 |
| R&R Safety Ltd | Construction | 2026 |
| R.A. Hankinson Ltd | Health & social care | 2012 |
| RAB Property Ltd | Real estate | 2020 |
| Rachel Lynch Ltd | Administrative & support | 2023 |
| Raffles Direct Limited | Arts & recreation | 2026 |
| RAI Solution Group Limited | Professional & scientific | 2020 |
| Rainclean Solutions Limited | Wholesale & retail | 2025 |
| RB Kullar Ltd | Real estate | 2025 |
| RBD Jewellery Ltd | Wholesale & retail | 2016 |
| RDH Grounds Maintenance Ltd | Professional & scientific | 2024 |
| Reed Travel Ltd | Transport & logistics | 2025 |
| Remove and Renew Ltd | Transport & logistics | 2025 |
| Responsive Payments Limited | Professional & scientific | 2026 |
| Reveles Properties Limited | Real estate | 2018 |
| Reyrolle Industrial Accessories Ltd | Extraterritorial | 1999 |
| Reyrolle Installation Ltd | Extraterritorial | 1999 |
| Reyrolle Ltd | Extraterritorial | 1999 |
| Reyrolle Protection Ltd | Extraterritorial | 1999 |
| RGM Training Services Ltd | Education | 2026 |
| RH Mobile Services Ltd | Manufacturing | 2018 |
| RI Utilities Limited | Information & communication | 2025 |
| Richmond Wealth Management Ltd | Financial services | 2023 |
| Rigg-It Ltd | Construction | 2016 |
| RK Landscaping Services Ltd | Administrative & support | 2025 |
| Robert LEE Smith Ltd | Construction | 2023 |
| Roberta Reeve Acupuncture Ltd | Administrative & support | 2020 |
| Robinson Transport Hebburn Limited | Transport & logistics | 2022 |
| Robinson Transport Services Gateshead Ltd | Transport & logistics | 2022 |
| Robinson’S Electrical Solutions Ltd | Construction | 2025 |
| Roma Access Systems Limited | Administrative & support | 2006 |
| Ronica Property Limited | Real estate | 2019 |
| Rope Monkey Ltd | Construction | 2024 |
| Rudransh Limited | Hospitality | 2024 |
| Runhaus Limited | Financial services | 2025 |
| S & E Carter Property Investments & Renovations Ltd | Real estate | 2026 |
| S-M Motor Trading Ltd | Wholesale & retail | 2023 |
| S2K Group Limited | Administrative & support | 2025 |
| Safe Space Media Solutions Ltd | Arts & recreation | 2021 |
| Safecom Ltd | Professional & scientific | 2026 |
| Salonunited Ltd | Wholesale & retail | 2025 |
| Sanco Group Ltd | Hospitality | 2025 |
| Santano Apple UK Ltd | Hospitality | 2025 |
| SAO Foods Storage 1 Ltd | Extraterritorial | 2023 |
| Sautu Ltd | Real estate | 2025 |