| Newstart Property Group Ltd | Households | 2026 |
| Nexlearn Education Ltd | Education | 2024 |
| Nextdoorbakes PVT Ltd | Manufacturing | 2026 |
| Nextphase Cabling Ltd | Construction | 2025 |
| Nicasa Limited | Information & communication | 2009 |
| Nicely's Healthcare Limited | Health & social care | 2015 |
| Nicole Millen Ltd | Information & communication | 2019 |
| Nihang Ltd | Transport & logistics | 2015 |
| NJ Investment & Finance Limited | Professional & scientific | 2013 |
| Nkume Properties & Investment Ltd | Real estate | 2026 |
| North Kent Building Ltd | Construction | 2024 |
| North Kent Distribution Limited | Transport & logistics | 2010 |
| Nova Grand Ltd | Construction | 2021 |
| Nova Ledger Consulting Ltd | Professional & scientific | 2026 |
| Nova Liberty Ltd | Information & communication | 2024 |
| NRT Living Limited | Real estate | 2025 |
| NTD Drylining Limited | Construction | 2025 |
| Nwator Holdings Limited | Financial services | 2025 |
| NWS GAS and Plumbing Services Ltd | Construction | 2013 |
| O. S Olaiya Ltd | Administrative & support | 2014 |
| Oakbridge Advisory Limited | Financial services | 2026 |
| Odishas Limited | Wholesale & retail | 2024 |
| Officecore Traders Ltd | Wholesale & retail | 2025 |
| OG Accounting Ltd | Professional & scientific | 2019 |
| Ogun Crest Ltd | Real estate | 2025 |
| Okwu Consulting Ltd | Information & communication | 2022 |
| Ollieo Ltd | Transport & logistics | 2023 |
| OM Shree Vishnu Ltd | Wholesale & retail | 2026 |
| Omaflex Company Ltd | Wholesale & retail | 2023 |
| Omvedea Ltd | Transport & logistics | 2025 |
| Online Motions Limited | Wholesale & retail | 2015 |
| Onyx Roofing Ltd | Construction | 2018 |
| Opticore Consulting Ltd | Professional & scientific | 2025 |
| Orchard Interiors Design Ltd | Wholesale & retail | 2021 |
| Oseni Tech Limited | Wholesale & retail | 2025 |
| Oshaqs & R Ltd | Construction | 2020 |
| Overflow Exteriors Limited | Administrative & support | 2025 |
| Owolabi&Owolabi Ltd | Health & social care | 2025 |
| P Godley Decor Limited | Construction | 2025 |
| P&A Welding Ltd | Manufacturing | 2023 |
| P3E Limited | Administrative & support | 2018 |
| Packprint Limited | Manufacturing | 2011 |
| Padika Limited | Transport & logistics | 2025 |
| Palmolive Engineering & Building Services Ltd | Construction | 2025 |
| Parkview Properties Inc. Ltd | Real estate | 2022 |
| Parmenter Electrical Limited | Construction | 2024 |
| Parmenter Property Limited | Real estate | 2024 |
| Passbee Cleaning Limited | Construction | 2025 |
| PAT Property Services Ltd | Real estate | 2025 |
| Patience Rigging Suppliers Ltd | Administrative & support | 2026 |
| Patricia Company Limited | Health & social care | 2014 |
| Pattways Limited | Professional & scientific | 2019 |
| Pattways Relocation Ltd | Real estate | 2023 |
| Paul Dane Services Ltd | Manufacturing | 2014 |
| Paul Mccarthy Resources Limited | Construction | 2017 |
| Penelope INK Ltd | Professional & scientific | 2018 |
| Penny Properties Services Ltd | Real estate | 2021 |
| Peregrine Business Consulting Limited | Professional & scientific | 2024 |
| PG Digital Ltd | Information & communication | 2016 |
| PG Home Investments Ltd | Real estate | 2022 |
| PG Nexus Ltd | Information & communication | 2026 |
| Philpaulyn Limited | Health & social care | 2019 |
| Phoenix CB Limited | Health & social care | 2014 |
| Pitshanger FSC Ltd | Manufacturing | 1987 |
| Pitshanger KPF Ltd | Manufacturing | 2025 |
| Pitshanger Limited | Wholesale & retail | 2004 |
| Pivot House Ltd | Health & social care | 2020 |
| PJ Diadem Ltd | Wholesale & retail | 2015 |
| Planpix Ltd | Professional & scientific | 2020 |
| Platinum Surface Ltd | Construction | 2026 |
| Playvibe Ltd | Information & communication | 2025 |
| Pointway Homes Ltd | Real estate | 2026 |
| Poplagosuk Limited | Wholesale & retail | 2024 |
| Positive Aura 247 Ltd | Health & social care | 2022 |
| Poton Ltd | Professional & scientific | 2025 |
| PR8 Consultancy Limited | Construction | 2024 |
| Praha Properties Ltd | Real estate | 2021 |
| Precise Homes and Villas Limited | Real estate | 2025 |
| Primeland Deals Ltd | Wholesale & retail | 2025 |
| Primeland Home Developers Ltd | Construction | 2022 |
| Primeland Loft Extension Limited | Construction | 2023 |
| Principles Healthcare Limited | Health & social care | 2023 |
| Priveluxe Curations Ltd | Administrative & support | 2026 |
| Progress London Ltd | Construction | 2024 |
| Project Voip Limited | Information & communication | 2015 |
| PT Technologies Limited | Information & communication | 2018 |
| Pure Ital Organics Limited | Wholesale & retail | 2021 |
| PVA Construction London Ltd | Construction | 2024 |
| Pvanorganics Limited | Wholesale & retail | 2020 |
| Pyropilot Ltd | Information & communication | 2026 |
| Quantyx Financial Limited | Professional & scientific | 2026 |
| Quatum Global Numerics Limited | Construction | 2024 |
| Quddos Printing Services Limited | Manufacturing | 2016 |
| Quezzies Ltd | Information & communication | 2025 |
| Quick Lifts Removals Ltd | Extraterritorial | 2022 |
| Qurious City Ltd | Education | 2025 |
| R&B Trans Ltd | Transport & logistics | 2018 |
| Rabbin Ltd | Construction | 2025 |
| Raico Technology Ltd | Information & communication | 2025 |
| Real Superstores Limited | Wholesale & retail | 2026 |