| NC Bean & Co Ltd | Wholesale & retail | 2026 |
| Neasden Starline London Limited | Construction | 2017 |
| Neptune Properties Solutions Limited | Real estate | 2024 |
| Neptune Sports Lounge Ltd | Hospitality | 2018 |
| Never Stop Dreaming Ltd | Arts & recreation | 2024 |
| New China Dragon Ltd | Hospitality | 2021 |
| New Homes and Land Ltd | Agriculture & fishing | 2004 |
| Next Wave Training Ltd | Education | 2023 |
| Nexyouth CIC | Health & social care | 2024 |
| Ngsol Holdings Limited | Financial services | 2024 |
| Ngsol Limited | Manufacturing | 2020 |
| Nicholas Wilson Electrical Limited | Construction | 2022 |
| Nigel Edward Rhearn Swan Limited | Extraterritorial | 2024 |
| Nightglow Ltd | Wholesale & retail | 2009 |
| Northgate Cafe & Snacks Bar Ltd | Hospitality | 2023 |
| NOT the National Curriculum Ltd | Wholesale & retail | 2018 |
| Nothgrey Ltd | Administrative & support | 2025 |
| Novo Ltd | Wholesale & retail | 2025 |
| NRP Commercial Limited | Wholesale & retail | 2002 |
| Nwanneuche Enterprises Limited | Professional & scientific | 2016 |
| O&G Contracts Ltd | Construction | 2018 |
| O&P Truck Assist Ltd | Wholesale & retail | 2025 |
| O.D.Mews Limited | Households | 2017 |
| Oak Health UK Ltd | Health & social care | 2014 |
| Oakapplefarm Ltd | Agriculture & fishing | 2013 |
| Olgphilohealth Care Limited Ltd | Health & social care | 2019 |
| Olivers Personnel Services Limited | Administrative & support | 2016 |
| Olly's Property Limited | Real estate | 2024 |
| Olssaj Ltd | Transport & logistics | 2024 |
| Olurin & Co Properties Ltd | Real estate | 2026 |
| Omar Grill Ltd | Hospitality | 2024 |
| Onsite Assessments Kent Ltd | Education | 2024 |
| Ophir Prime Limited | Other services | 2026 |
| Orbital Lifts Limited | Construction | 2008 |
| Orchid Media Ltd | Professional & scientific | 2016 |
| Oriton Tools Ltd | Wholesale & retail | 2020 |
| OSB Scaffolding Ltd | Construction | 2026 |
| Osvhaulage Ltd | Transport & logistics | 2026 |
| Osvtransport Ltd | Transport & logistics | 2026 |
| Otas Investment Limited | Real estate | 2017 |
| Otas Supported Living Limited | Health & social care | 2017 |
| OTS Consultancy Ltd | Construction | 2007 |
| Otter Properties (Kent) Limited | Real estate | 1998 |
| Oxly Ltd | Construction | 2021 |
| O’Neill Scaffolding Services Ltd | Construction | 2021 |
| P & a Love Limited | Agriculture & fishing | 1998 |
| P & S Building Services Limited | Construction | 2002 |
| P & S Electrical Services Ltd | Construction | 2011 |
| P Adams Roofing Ltd | Construction | 2020 |
| P.A.D. Specialists Ltd | Wholesale & retail | 2024 |
| P.D.K. Engineering Limited | Construction | 1999 |
| P.V.G News Limited | Wholesale & retail | 2026 |
| P.Wills Transport Ltd | Transport & logistics | 2012 |
| Pacs Investment Properties Limited | Real estate | 2022 |
| Padro Properties Limited | Professional & scientific | 2005 |
| Palliser Platt & Sons Limited | Other services | 2016 |
| Palmer Inclusive Education Consultancy Ltd | Professional & scientific | 2026 |
| Pampered Pets Services Ltd | Wholesale & retail | 2015 |
| Pandoras Courier Ltd | Transport & logistics | 2017 |
| Park Avenue Holiday Village (Leysdown) Limited | Hospitality | 1980 |
| Partum Consultancy Limited | Professional & scientific | 2025 |
| Patricia ANN Craen Limited | Extraterritorial | 2024 |
| Patricia ANN Hales Limited | Extraterritorial | 2024 |
| Paul Smith Brickwork Contractors Ltd | Construction | 2016 |
| Pavitt Properties Limited | Real estate | 2022 |
| PAY and Brown Limited | Wholesale & retail | 1966 |
| PDW Ltd | Hospitality | 2026 |
| Peace Planet Ltd | Manufacturing | 2025 |
| Pensal Services Ltd | Health & social care | 2013 |
| Peregrine Court (Welling) Management Limited | Households | 1993 |
| Perfect Panelzz Ltd | Wholesale & retail | 2025 |
| Perotis Limited | Professional & scientific | 2019 |
| Peter Smedley Limited | Professional & scientific | 2024 |
| Peticular (2022) Ltd | Manufacturing | 2022 |
| Pharmachem Limited | Wholesale & retail | 2022 |
| Phil King (UK) Limited | Information & communication | 2015 |
| Philip Love Holdings Limited | Professional & scientific | 2012 |
| Phobic Records Ltd | Information & communication | 2008 |
| PIL Office Ltd | Construction | 2014 |
| PIL Self Storage Ltd | Real estate | 2021 |
| Pine Barber Ltd | Other services | 2024 |
| Pippo Properties Limited | Real estate | 2019 |
| Pivot Tutoring Limited | Other services | 2020 |
| Playa Bar & Resturant Ltd | Hospitality | 2026 |
| Plough Leisure Ltd | Hospitality | 2014 |
| Pocket Social & Marketing Ltd | Professional & scientific | 2024 |
| Pokiverse Ltd | Manufacturing | 2026 |
| Ponzoo Limited | Hospitality | 2018 |
| Poodling Paws Pet Services Ltd | Extraterritorial | 2023 |
| POP Sales Ltd | Wholesale & retail | 2025 |
| Poppins Garden Centre Limited | Wholesale & retail | 2024 |
| Poppyella Holdings Ltd | Construction | 2023 |
| PRD Limited | Construction | 2014 |
| Premier Eastern Limited | Wholesale & retail | 2019 |
| Premier Property Sheppey Limited | Real estate | 2024 |
| Premwearhaven Co. Ltd | Wholesale & retail | 2024 |
| Price Bros Group Limited | Construction | 2015 |
| Primepitch Advertising Limited | Professional & scientific | 2026 |
| Priory Walk (Residents) Limited | Households | 1993 |
| Pro Paving & Groundworks Ltd | Construction | 2021 |