| N1 VIP Valet Ltd | Other services | 2022 |
| Nasi Malaysia Limited | Hospitality | 2019 |
| Neo-Tec Electrics Limited | Construction | 2015 |
| Netanext Ltd | Other services | 2019 |
| New Angeli Enterprise Limited | Hospitality | 2015 |
| New Chapter Housing Ltd | Real estate | 2019 |
| Neway Estate Agents Ltd | Real estate | 2007 |
| Neway Surveyors Limited | Construction | 2004 |
| Newby (UK) Limited | Professional & scientific | 2002 |
| Nicholas George of London Limited | Other services | 2004 |
| Nisos Estates Limited | Construction | 2019 |
| NO.1 Gold Security Services Limited | Administrative & support | 2018 |
| NO.1 Gold Security UK Limited | Administrative & support | 2023 |
| Nora Investments Ltd | Construction | 2017 |
| North London Holdings Ltd | Real estate | 2021 |
| Nrsn Services Ltd. | Professional & scientific | 2024 |
| NSB Medical Limited | Health & social care | 2025 |
| Nvsone Limited | Construction | 2017 |
| O H Hewett Limited | Real estate | 2000 |
| Oakwoods House Ltd | Hospitality | 2026 |
| OIS (UK) Limited | Financial services | 1997 |
| Old Court Place Limited | Real estate | 2006 |
| Olive Tree Investments Limited | Real estate | 2000 |
| Onkar Investments (UK) Limited | Extraterritorial | 1998 |
| Ooke Limited | Real estate | 2013 |
| ORB Design Consultancy Limited | Professional & scientific | 2003 |
| Orcadia Film Ltd | Information & communication | 2025 |
| Ossian Investors Limited | Real estate | 1952 |
| P & a Bakery Limited | Manufacturing | 2019 |
| P + K Nicola Investments LLP | | 2025 |
| P R E W Limited | Professional & scientific | 2015 |
| PA Accounting Services Limited | Professional & scientific | 2001 |
| Pact (UK) Limited | Wholesale & retail | 2006 |
| Pamballi Investments Ltd | Real estate | 2020 |
| Panayides Estates Ltd | Real estate | 2020 |
| Panayides Investments Ltd | Real estate | 2020 |
| Panayides Properties Ltd | Real estate | 2020 |
| Panjab Leisure Limited | Hospitality | 2020 |
| Panjabi Restaurants Limited | Hospitality | 2018 |
| Panjabi Sweets Limited | Hospitality | 2018 |
| PAR Consulting Ltd | Professional & scientific | 2015 |
| Paramount Group Properties Ltd | Real estate | 2019 |
| Paramount Property Care Limited | Construction | 2006 |
| Paramount Property Group Limited | Construction | 2019 |
| Paramount Roofing and Building Limited | Construction | 2020 |
| Paramount Services (Holdings) Limited | Real estate | 1993 |
| Paris Heating Limited | Construction | 2021 |
| Parpa Performance Limited | Education | 2021 |
| PCO Hub Ltd | Transport & logistics | 2024 |
| PD Comms Ltd | Administrative & support | 2018 |
| PD Design Consultancy Limited | Other services | 2004 |
| PER Excellence Limited | Administrative & support | 2015 |
| Perfect Personalised DOT Gifts Limited | Administrative & support | 2006 |
| Petro-Lube (UK) Limited | Manufacturing | 1985 |
| Phoenician London Property Consultants Ltd | Real estate | 2014 |
| Phoenixone Ltd | Construction | 2022 |
| PIE Property Limited | Real estate | 2015 |
| Pizza Point Enfield Ltd | Hospitality | 2025 |
| PKA Finance Ltd | Professional & scientific | 2018 |
| Plymouth Ice Company Limited | Hospitality | 2021 |
| PM Oscar and Company Limited | Professional & scientific | 2021 |
| Poolmasters Limited | Other services | 2024 |
| POP Contracts Ltd | Construction | 2025 |
| POS & Barcode Experts Limited | Manufacturing | 2015 |
| Positive Resource Limited | Extraterritorial | 2006 |
| Poullis & Sons Ltd | Real estate | 2017 |
| Private Kickboxing London Ltd | Arts & recreation | 2023 |
| Private Martial Arts Ltd | Arts & recreation | 2023 |
| Profession Finance Limited | Professional & scientific | 2015 |
| Propmarker Ltd | Information & communication | 2021 |
| Prospergate UK Limited | Real estate | 2019 |
| Psychology-Go Limited | Health & social care | 2021 |
| Purple Spyder Marketing Limited | Administrative & support | 2017 |
| Purplerose Three Limited | Hospitality | 2016 |
| Purplerose Two Limited | Hospitality | 2016 |
| Quick PAY London Ltd | Administrative & support | 2018 |
| Qureish Construction Limited | Professional & scientific | 2007 |
| R & H Enterprises Ltd | Wholesale & retail | 2010 |
| R2R Consultancy Ltd | Information & communication | 2017 |
| Racing Technologies Limited | Wholesale & retail | 1998 |
| Ramcrest Limited | Real estate | 2005 |
| Raybar Securities Limited | Real estate | 1971 |
| Rent a Garage Limited | Extraterritorial | 2000 |
| Reshami Foods Limited | Manufacturing | 2012 |
| Richard Mccarthy Hairdressing Limited | Other services | 2015 |
| Ringway Estates Limited | Real estate | 2006 |
| RNK Accountancy Services Ltd | Professional & scientific | 2007 |
| Russo Photo Ltd | Professional & scientific | 2017 |
| S&V Consultancy Services Limited | Professional & scientific | 2002 |
| S.M Ellsworth Investments Ltd | Real estate | 2019 |
| Sacheverell Limited | Information & communication | 2019 |
| SAF Construction Ltd | Construction | 2015 |
| Saint Christopher Homes Ltd | Construction | 2026 |
| Saint James Limited | Construction | 1999 |
| Saints Barbers Ltd | Other services | 2017 |
| SAJ Mahal Ltd | Wholesale & retail | 2018 |
| Sarj Holdings Limited | Real estate | 2021 |
| Sawtree Limited | Administrative & support | 2019 |
| Sector Secure Limited | Administrative & support | 2023 |
| Sense Advertising & Marketing Ltd | Professional & scientific | 2006 |