| New Build Construction Ltd | Construction | 2025 |
| New Place Gardens Management Company Limited | Households | 1998 |
| Nicholas Electrical Limited | Construction | 2016 |
| Nickols Limited | Professional & scientific | 2012 |
| Nikki Thompson Travel Counsellors Ltd | Administrative & support | 2024 |
| Nine Zero Development Limited | Administrative & support | 2025 |
| Ninecups Limited | Professional & scientific | 2017 |
| NJ Steel Solutions Limited | Manufacturing | 2015 |
| Noor Property Investments London Limited | Real estate | 2020 |
| Noors Estate Ltd | Real estate | 2023 |
| NOT for Sale Limited | Real estate | 2019 |
| Notabsbars Ltd | Hospitality | 2025 |
| Novderam Limited | Other services | 2014 |
| Nuglaze Home Services Ltd | Construction | 2011 |
| Nursery Grange Management Company Limited | Real estate | 2013 |
| Objective Management Consulting Limited | Professional & scientific | 2020 |
| OIL & GAS Advisors Limited | Mining & quarrying | 2010 |
| Ollie Green Limited | Information & communication | 2010 |
| Olson Solutions Limited | Construction | 2007 |
| Olzmat Carpentry & Build Ltd | Construction | 2022 |
| Onsite Temporary Trackway Limited | Administrative & support | 2026 |
| Opex Building Services Ltd | Construction | 2013 |
| OUR Project Co Developments Limited | Real estate | 2022 |
| OWS Fire Rated Ltd | Manufacturing | 2005 |
| P S D Ice Art Limited | Professional & scientific | 2005 |
| P S Mankelow Services Limited | Administrative & support | 2008 |
| Paddock Mews Management Company Limited | Households | 1997 |
| Paper and Office Solutions Limited | Wholesale & retail | 2003 |
| Papillon Embroidery Limited | Wholesale & retail | 2002 |
| Parkair UK Limited | Wholesale & retail | 2023 |
| Path Property Commercial Ltd | Real estate | 2025 |
| Path Property Ltd | Real estate | 2020 |
| Patterns Two Ltd | Information & communication | 2024 |
| Paul Lovelock Electrical Limited | Administrative & support | 2016 |
| Pawky Inns Limited | Hospitality | 2008 |
| PCP Building & Restoration Ltd | Construction | 2013 |
| PCP Building Facilities Ltd | Construction | 2020 |
| PCP Contractors Ltd | Construction | 2018 |
| PDQ Today Ltd | Wholesale & retail | 2019 |
| Pepper Vale Ltd | Manufacturing | 2026 |
| Peter William Earl Ltd | Administrative & support | 2025 |
| Pickering & RYE Financial Solutions Ltd | Professional & scientific | 2018 |
| Pink Bull Construction Limited | Construction | 2025 |
| PK Networks Ltd | Information & communication | 2011 |
| Plants R US Limited | Wholesale & retail | 2011 |
| Platinum Air Cargo (UK) Limited | Transport & logistics | 2001 |
| Plumb-Rite Plumbing & General Maintenance Limited | Real estate | 1982 |
| Pmct Limited | Arts & recreation | 2017 |
| Polaris Cloud Limited | Administrative & support | 2025 |
| PPT Accountancy Ltd | Professional & scientific | 2012 |
| Premier Tours Ltd | Transport & logistics | 2021 |
| Premier Winter Wonderland Events Ltd | Arts & recreation | 2020 |
| Prezzie Parcels Ltd | Wholesale & retail | 2023 |
| Puddking Ltd | Extraterritorial | 2025 |
| Purdys Petals Limited | Wholesale & retail | 2026 |
| Purple Gator Limited | Information & communication | 2013 |
| PWF Consultancy Ltd | Information & communication | 2026 |
| QAR Supplies Limited | Administrative & support | 2016 |
| Quality Agency & Regency Supplies Ltd. | Wholesale & retail | 2009 |
| R & P Accident Repair Centre Ltd | Wholesale & retail | 2008 |
| R M Dean Decorating Ltd | Construction | 2015 |
| RA Studios Ltd | Information & communication | 2023 |
| Railside (Lingfield) Residents Association Limited | Households | 1983 |
| Raise the Bar Financial Management Ltd | Professional & scientific | 2021 |
| RAY Lodge Ventures Ltd | Real estate | 2025 |
| Razzle Dazzle Productions Limited | Arts & recreation | 2009 |
| RBX Holdings Ltd | Professional & scientific | 2026 |
| Reading Winter on Ice Limited | Hospitality | 2019 |
| Redmond & Associates (South East) LLP | | 2019 |
| Referent Consulting Limited | Professional & scientific | 2017 |
| Rhino Asset Finance Limited | Financial services | 2018 |
| Rhys Child Construction Ltd | Construction | 2021 |
| Rivermark Construction Group Ltd | Construction | 2025 |
| Rivora Group Ltd | Professional & scientific | 2026 |
| ROB1TILE Ltd | Construction | 2014 |
| Rockvale Consulting Limited | Professional & scientific | 2022 |
| Roots of Sussex Limited | Administrative & support | 2023 |
| RPS (PVT) Limited | Wholesale & retail | 2019 |
| RT Grooming Ltd | Other services | 2025 |
| Rusty Hole Bodyworks Ltd | Wholesale & retail | 2021 |
| RW Financial Services Ltd | Financial services | 2022 |
| Ryan Removals Residential Limited | Transport & logistics | 2026 |
| Ryan Removals’S Limited | Transport & logistics | 2023 |
| S Bisla Limited | Financial services | 2001 |
| S R Freeholders Limited | Households | 2005 |
| S&L Bath & Tiles Co Limited | Construction | 2023 |
| Saima Property Investments Ltd | Real estate | 2024 |
| Saltwood Construction Ltd | Construction | 2020 |
| Saltwood Homes Ltd | Real estate | 2020 |
| SAN Real Estate Ltd | Real estate | 2024 |
| Sanders Haulage Limited | Agriculture & fishing | 2022 |
| Scailup Limited | Professional & scientific | 2023 |
| SD Autotech Ltd | Wholesale & retail | 2020 |
| Seller Synergy Ltd | Wholesale & retail | 2025 |
| Serika Ltd | Transport & logistics | 2021 |
| Seven Day Grocers Ltd | Wholesale & retail | 2012 |
| Sevenoaksfitness Ltd | Arts & recreation | 2025 |
| Señor Churros Ltd | Hospitality | 2025 |
| Shahjid Investment Group Ltd | Real estate | 2015 |
| Shahjid Properties Ltd | Real estate | 2020 |