| PB & C Enterprises Limited | Professional & scientific | 2012 |
| Pembridge Bmbn Ltd | Financial services | 2013 |
| Philip Jones Garden & Property Maintenance Limited | Construction | 2026 |
| Pisan Ltd | Financial services | 2004 |
| Plator Ltd | Information & communication | 2021 |
| Plethora Solutions Holdings PLC | Professional & scientific | 2005 |
| Plethora Solutions Limited | Professional & scientific | 2003 |
| Precision Build UK Limited | Construction | 2014 |
| Princess Court (Hornsey) Management Limited | Households | 1982 |
| Princess Court Limited | Construction | 1990 |
| Promote Enterprise Ltd | Professional & scientific | 2015 |
| Promote Golf Ltd | Professional & scientific | 2015 |
| Promote Leisure Ltd | Professional & scientific | 2015 |
| Promote People Ltd | Administrative & support | 2022 |
| Ramsey Real Estate Legal Limited | Professional & scientific | 2023 |
| Ransford Legal Limited | Professional & scientific | 2024 |
| Red Kite Recycling Limited | Water & waste | 2007 |
| Redcliffe Square Limited | Households | 2017 |
| Redgate Financial Limited | Financial services | 2022 |
| Richard Riley and Associates Limited | Professional & scientific | 2012 |
| RJM Holdco Limited | Financial services | 2013 |
| RM Landscapes & Supplies Ltd | Administrative & support | 2024 |
| Rock and GEM Limited | Wholesale & retail | 2005 |
| Room for Ideas Ltd | Manufacturing | 2009 |
| ROOT4 Ltd. | Professional & scientific | 2016 |
| S Young Consulting Ltd | Information & communication | 2025 |
| Sherman's Kitchens Ltd | Manufacturing | 2022 |
| Soho Cliniq Ltd | Health & social care | 2024 |
| Solo Supplies Limited | Administrative & support | 2008 |
| Spicer and Wood Limited | Wholesale & retail | 2021 |
| Spotty Bengal Limited | Other services | 2018 |
| SS Actuarial & Risk Limited | Professional & scientific | 2024 |
| Steingold Contemporary Ltd | Administrative & support | 2023 |
| Studio Alistair Gibbs Limited | Professional & scientific | 2016 |
| Tafoch Limited | Water & waste | 2021 |
| THE Blue Tree Company (UK) Limited | Agriculture & fishing | 2013 |
| THE Buck Project Ltd | Professional & scientific | 2011 |
| THE Commercial Clean Club Ltd | Administrative & support | 2024 |
| THE Complete Pet Company Limited | Wholesale & retail | 2020 |
| THE Compressorshop Limited | Administrative & support | 2020 |
| THE Exquisite Objects Ltd | Professional & scientific | 2025 |
| THE Farm Cafe Group Limited | Hospitality | 2018 |
| THE Learning Ladder Ltd | Administrative & support | 2003 |
| THE Music LAB Worldwide Limited | Information & communication | 2018 |
| THE Valiant East Limited | Professional & scientific | 2012 |
| Thimble Consulting Limited | Information & communication | 2012 |
| Time Quantum Expert Forensics Limited | Professional & scientific | 2012 |
| Tomef Design Limited | Professional & scientific | 2013 |
| Total 360 Group Ltd | Construction | 2021 |
| Turton Marine Finance Limited | Financial services | 2010 |
| Twine Management Ltd | Arts & recreation | 2016 |
| Webber Legal Limited | Professional & scientific | 2014 |
| White Young Design Limited | Professional & scientific | 2016 |
| Wonnacott Limited | Professional & scientific | 2007 |
| Wonpennie Ltd | Professional & scientific | 2020 |
| Young Persons' Psychiatric Clinic Ltd | Health & social care | 2023 |