| Montalbano Welling Ltd | Hospitality | 2022 |
| Monty Capital Investments Limited | Real estate | 2014 |
| Moore Developments Ltd | Professional & scientific | 2024 |
| Moretto's Caterers Limited | Hospitality | 2019 |
| Morley MAY Education Limited | Education | 2025 |
| Morton & Morton Limited | Financial services | 2001 |
| Mountain Steps UK Ltd | Information & communication | 2011 |
| MR. Taylor's Drink Emporium Ltd | Hospitality | 2025 |
| Multi Brand Distributors Limited | Hospitality | 2017 |
| Music Industry Development International Ltd | Administrative & support | 2020 |
| MWR Financial Ltd | Professional & scientific | 2022 |
| My Business Network Ltd | Professional & scientific | 2018 |
| My Castle Property Ltd | Real estate | 2017 |
| N & J Stanford Limited | Construction | 2006 |
| N-Liven Limited | Information & communication | 2002 |
| Nail-On Company Limited | Agriculture & fishing | 2001 |
| Nation Venues Limited | Hospitality | 2020 |
| Naylor, Benzon & Co. Limited | Mining & quarrying | 1979 |
| Nelsons Legal Limited | Professional & scientific | 2013 |
| Neoteric Anchor Ltd | Construction | 2025 |
| New Approach Contractors Limited | Administrative & support | 2009 |
| Newbridge Farmers Limited | Agriculture & fishing | 1996 |
| Niamed Ltd | Health & social care | 2012 |
| Nightingale Cider Company Limited | Manufacturing | 2017 |
| Nikam Consulting Limited | Other services | 2014 |
| Nilca Limited | Other services | 2010 |
| Nitramic Limited | Wholesale & retail | 2002 |
| Nitramic Property Ltd | Real estate | 2018 |
| Northiam Dairy Limited | Manufacturing | 2003 |
| Norton Agencies Ltd | Administrative & support | 2018 |
| Noua Digital Ltd | Professional & scientific | 2025 |
| NPB Fire Installations Limited | Construction | 2010 |
| NSG Adjusting Services Limited | Financial services | 2014 |
| Number TEN Tenterden Ltd | Administrative & support | 2016 |
| Oakhurst Maintenance Limited | Construction | 2006 |
| Oakland Electrical Group Limited | Construction | 2018 |
| Oakwood Property Finance Ltd | Financial services | 1998 |
| Ollerton Logistics Limited | Transport & logistics | 2024 |
| Only Smarty HAS the Answer Ltd | Information & communication | 2012 |
| OOH HOW Lovely Ltd | Wholesale & retail | 2022 |
| Orchard Court Residents Association (Benenden) Limited | Real estate | 1994 |
| Orenominee Ltd | Extraterritorial | 2026 |
| Orenova Ltd | Financial services | 2026 |
| Orient Property Management Limited | Real estate | 2023 |
| Osman Charles & Co Ltd | Wholesale & retail | 2025 |
| Oxenbridge Management Company Limited | Real estate | 2007 |
| Oxford Tenancies Limited | Real estate | 1988 |
| Oxney Construction Ltd | Administrative & support | 2019 |
| Oxney Land Services Ltd | Administrative & support | 2014 |
| Oxney Residentials Limited | Real estate | 2013 |
| Ozturkway Ltd | Hospitality | 2024 |
| P Channon Fencing Supplies Ltd | Construction | 2020 |
| Packer Collective Ltd | Real estate | 2025 |
| Panda Paws Hydrotherapy Ltd | Professional & scientific | 2024 |
| Pangaia Property Services Limited | Construction | 2025 |
| Pankhurst Plant Ltd | Construction | 2008 |
| Papa Bear Wear Ltd | Wholesale & retail | 2018 |
| Paragon Dent Repair Limited | Wholesale & retail | 2012 |
| Paragon Processing Solutions Limited | Manufacturing | 2003 |
| Park Gate Lane Limited | Households | 2014 |
| Parkdene Developments Limited | Construction | 2007 |
| Paso Ltd | Construction | 2025 |
| Paul Burtenshaw Limited | Wholesale & retail | 2003 |
| Pawli App Ltd | Information & communication | 2026 |
| Payne & Scott Limited | Professional & scientific | 1933 |
| PC Finance Limited | Financial services | 2009 |
| Peace Harbour Ltd | Real estate | 2024 |
| Peak Smiles Ltd | Health & social care | 2023 |
| Pegasus Plastering South East Limited | Construction | 2023 |
| Penge Estate Agency Limited | Real estate | 2022 |
| Penreach Limited | Information & communication | 2005 |
| Pestanti Estates Limited | Real estate | 2015 |
| Philip Trow Consulting Limited | Professional & scientific | 2026 |
| Physio & Recover Limited | Other services | 2023 |
| Pifpaf Limited | Administrative & support | 2022 |
| Pitch Partners Solutions Limited | Information & communication | 2009 |
| Pitch Property Partners Ltd | Real estate | 2023 |
| PJA Electrical AGA Services Ltd | Other services | 2018 |
| Pmbf Limited | Professional & scientific | 2010 |
| Podkin Press Limited | Information & communication | 2009 |
| Poppyfields Properties Limited | Real estate | 2012 |
| Positive Vision Limited | Information & communication | 2012 |
| Possum Consulting Ltd | Professional & scientific | 2018 |
| Potters Home Digital Limited | Wholesale & retail | 2013 |
| Potts Estate Limited | Professional & scientific | 2018 |
| Power Networking Solutions Ltd | Manufacturing | 2026 |
| PR Napper Ltd | Other services | 2015 |
| Prana Marketing Limited | Administrative & support | 2005 |
| Precious Cargo Limited | Transport & logistics | 2025 |
| Precious Pearl's Services Ltd | Households | 2019 |
| Premier Accounting (Staffs) Limited | Professional & scientific | 2012 |
| Printing the Dream Ltd | Professional & scientific | 2026 |
| Profitcomm Ltd | Information & communication | 1994 |
| Project-Twenty Limited | Construction | 2017 |
| Propane Company Limited(The) | Manufacturing | 1933 |
| Property JAR Ltd | Real estate | 2020 |
| Property Online Ltd | Real estate | 2014 |
| Public Realm Protection Limited | Professional & scientific | 2021 |
| Pure Connection Pets Ltd | Wholesale & retail | 2021 |
| QA Innovate Ltd | Information & communication | 2024 |