| Peking Chef Spenny Limited | Hospitality | 2023 |
| Penia Ltd | Wholesale & retail | 2025 |
| Percy Trade Ltd | Wholesale & retail | 2025 |
| Pev's Prints Limited | Manufacturing | 2025 |
| PGI Smith Solutions Ltd | Arts & recreation | 2013 |
| PGL Assessment and Training Limited | Education | 2022 |
| PGL Training (Plumbing) Limited | Education | 2004 |
| PGL Training Holdings Limited | Administrative & support | 2010 |
| PH Music Limited | Information & communication | 2023 |
| Phab Unisex Salon Ltd | Other services | 2016 |
| Pickering Nook MOT Centre Limited | Wholesale & retail | 2021 |
| Pimloo Ltd | Wholesale & retail | 2026 |
| Pinpod Limited | Manufacturing | 2010 |
| Pizza Heavens Spenny Ltd | Hospitality | 2024 |
| Pizza Time Spennymoor Ltd | Hospitality | 2024 |
| PKM Lettings Limited | Real estate | 2024 |
| Plantedsolutions Ltd | Information & communication | 2025 |
| Players Bar Brewing Ltd | Wholesale & retail | 2025 |
| PLW Event Management Community Interest Company | Education | 2014 |
| PM Innovation Ltd | Administrative & support | 2023 |
| Polterten Ltd | Wholesale & retail | 2026 |
| Portia Property Holdings Ltd | Real estate | 2019 |
| Posh-Tidy-Luxury Ltd | Administrative & support | 2021 |
| Positive Paws Swimming and Training Ltd | Professional & scientific | 2025 |
| Premier Traffic Management Limited | Transport & logistics | 2000 |
| Premium Park Homes Ltd | Construction | 2021 |
| Prestige Construction NE Ltd | Construction | 2024 |
| Primal Energy Ltd | Manufacturing | 2026 |
| Primexa Trade Ltd | Wholesale & retail | 2026 |
| Princes Street Freehold Limited | Extraterritorial | 2009 |
| Pritchard Properties NE Limited | Real estate | 2026 |
| Private Transport Logistics Limited | Transport & logistics | 2017 |
| PRM Fabrications Limited | Manufacturing | 2014 |
| Pro-Line Partitions and Ceilings Limited | Construction | 2013 |
| Procurement 101 Ltd | Education | 2025 |
| Professional Cuisine Limited | Transport & logistics | 1990 |
| Profound National Apprenticeship Company Limited | Education | 2015 |
| Profound Services Limited | Professional & scientific | 2006 |
| Property to Love Limited | Real estate | 2024 |
| PTL Group (Durham) Ltd | Financial services | 2023 |
| PTM Holdings Limited | Professional & scientific | 2008 |
| Puppy Paradise Spennymoor Ltd | Other services | 2025 |
| Purebm Limited | Wholesale & retail | 2023 |
| Pyra Limited | Arts & recreation | 2017 |
| Quantum Store Trade Ltd | Wholesale & retail | 2026 |
| Quick Roof Repair Ltd | Construction | 2024 |
| Raaj Sons Ltd | Transport & logistics | 2019 |
| RAD Surveying Limited | Professional & scientific | 2025 |
| Rapid Response Drain Care Limited | Administrative & support | 2015 |
| RB Inspection (NE) Limited | Other services | 2022 |
| Rebecca Louise Jackson Limited | Professional & scientific | 2019 |
| Rebirth Trade Ltd | Wholesale & retail | 2025 |
| Redbow Controls Ltd | Professional & scientific | 2023 |
| Redorallc Ltd | Wholesale & retail | 2026 |
| REM Assets Ltd | Real estate | 2023 |
| Renax Ltd | Wholesale & retail | 2024 |
| RHC Scaffolding Ltd | Construction | 2021 |
| RHM Precision Cleaning Ltd | Public administration | 2020 |
| Rich Light Limited | Professional & scientific | 2016 |
| Ridding Shop Ltd | Wholesale & retail | 2025 |
| Right Formations Limited | Administrative & support | 2025 |
| Rimev Ltd | Wholesale & retail | 2026 |
| RJ Welding Engineering Limited | Professional & scientific | 2022 |
| RN Dawson Letting Limited | Real estate | 2024 |
| Roads WE Ride Ltd | Administrative & support | 2026 |
| ROB Heerin HR Ltd | Administrative & support | 2016 |
| ROB Mcalister Limited | Manufacturing | 2005 |
| ROD & R Investments Ltd | Hospitality | 2025 |
| Rokket Properties Ltd | Real estate | 2022 |
| Roksi Trade Ltd | Wholesale & retail | 2026 |
| Roller Coaster Family Support Ltd | Other services | 2019 |
| Rotahub Technologies Ltd | Information & communication | 2026 |
| Routech Group Ltd | Manufacturing | 2026 |
| RPW Technical Consulting (FM) Ltd | Professional & scientific | 2024 |
| Rubber Duck Limited | Construction | 2006 |
| Rusin Global Ltd | Wholesale & retail | 2025 |
| RX Services NE Ltd | Construction | 2026 |
| Ryan and Vigwe Properties Ltd | Real estate | 2025 |
| S & L Electrical Contractors Limited | Construction | 2022 |
| S and J Groundworks Limited | Construction | 2024 |
| S Cars Tyre Sales Limited | Wholesale & retail | 2017 |
| S J Partnership Ltd | Administrative & support | 2017 |
| S K Emerson Limited | Administrative & support | 2009 |
| S&B Autos N.E Ltd | Wholesale & retail | 2025 |
| S&I Solutions Ltd | Professional & scientific | 2025 |
| S&M Property Maintenance North East Ltd | Construction | 2022 |
| S2 Concepts Ltd | Manufacturing | 2021 |
| Sadbag Ltd | Wholesale & retail | 2025 |
| Sambey Ltd | Wholesale & retail | 2025 |
| Savora Global Ltd | Wholesale & retail | 2026 |
| Scantec Commercials Limited | Wholesale & retail | 2021 |
| Sd-Uk Detailing Services Ltd | Professional & scientific | 2022 |
| Sdaa Group Ltd | Wholesale & retail | 2025 |
| SDH Blair Limited | Real estate | 2025 |
| Seated Group Ltd | Wholesale & retail | 2024 |
| SEB Roofing Ltd | Construction | 2019 |
| Seku Europe Ltd | Wholesale & retail | 2025 |
| Senstore Ltd | Wholesale & retail | 2025 |
| Serendipity Cafe Limited | Hospitality | 2021 |
| Seretec Ltd | Administrative & support | 2024 |