| 28TAX Ltd | Extraterritorial | 2025 |
| 28WEST LLP | | 2023 |
| 28WS Leicester Limited | Real estate | 2023 |
| 29 Cost Management Ltd | Professional & scientific | 2020 |
| 29CC Limited | Real estate | 2022 |
| 29W105 Limited | Real estate | 2018 |
| 2AA Network Ltd | Information & communication | 2022 |
| 2B Electrical & Mechanical Services Ltd | Construction | 2010 |
| 2B Fire Limited | Manufacturing | 2019 |
| 2B Ltd | Wholesale & retail | 2026 |
| 2BP Limited | Administrative & support | 2002 |
| 2DNO Limited | Wholesale & retail | 2023 |
| 2FRY Ltd | Hospitality | 2015 |
| 2FRY Woodgreen Ltd | Hospitality | 2016 |
| 2FUNKY Arts Ltd | Education | 2007 |
| 2FUNKY Bar & Kitchen Limited | Hospitality | 2018 |
| 2FUNKY Group Limited | Financial services | 2024 |
| 2FUNKY Music Cafe Ltd | Hospitality | 2015 |
| 2H Consultants Limited | Administrative & support | 2006 |
| 2JMCVS Ltd | Financial services | 2023 |
| 2K Corporations LLP | | 2021 |
| 2LOD Compliance Limited | Professional & scientific | 2017 |
| 2ND Time Around Limited | Administrative & support | 2004 |
| 2NSZ Management Ltd | Real estate | 2018 |
| 2PILENTSE Ltd | Wholesale & retail | 2025 |
| 2SECURE Services Limited | Other services | 2016 |
| 2SGP Limited | Transport & logistics | 2025 |
| 2T Security Ltd | Information & communication | 2013 |
| 2UBS Ltd | Other services | 2019 |
| 3 Angle Consultants Limited | Administrative & support | 2011 |
| 3 Brothers Builders Ltd | Construction | 2026 |
| 3 Cubs Limited | Real estate | 2020 |
| 3 Degrees Media Limited | Information & communication | 2013 |
| 3 Ducks - Home and Business Maintenance Services Ltd | Administrative & support | 2012 |
| 3 Electrical Ltd | Construction | 2013 |
| 3 Fortune Ltd | Wholesale & retail | 2025 |
| 3 Kilns Ltd | Hospitality | 2020 |
| 3 Little Birds Restaurant Ltd | Hospitality | 2023 |
| 3 Monkeys Recycling Limited | Water & waste | 2012 |
| 3 Pyramids Group Ltd | Manufacturing | 2024 |
| 3 Rivers Ltd | Wholesale & retail | 2006 |
| 3 Sisters London Ltd | Construction | 2017 |
| 3 Star Health Care Limited | Health & social care | 2015 |
| 3 Style Entertainment Ltd | Arts & recreation | 2022 |
| 3-MOTION Ltd | Professional & scientific | 2011 |
| 30 Springfield Road Management Limited | Real estate | 1998 |
| 303 Holdings Ltd | Financial services | 2026 |
| 31-33 Teddington Estates Limited | Financial services | 2026 |
| 312 Hospitality Ltd | Hospitality | 2025 |
| 313 Commercial Properties Limited | Real estate | 2025 |
| 313 Construction Ltd | Construction | 2025 |
| 313 Investment Group Limited | Real estate | 2021 |
| 313 Laundrette Limited | Other services | 2024 |
| 33 Albert Street Limited | Financial services | 2022 |
| 33 Clinic Ltd | Health & social care | 2018 |
| 33 Events & Bars Limited | Administrative & support | 2024 |
| 333 Aylestone Road Ltd | Real estate | 2020 |
| 33CANKSTREET Ltd | Hospitality | 2013 |
| 34 Portfolio Ltd | Real estate | 2015 |
| 34 Retail Limited | Wholesale & retail | 2024 |
| 34 the Parade Limited | Wholesale & retail | 2026 |
| 348 Trading Ltd | Wholesale & retail | 2020 |
| 35 Avenell Road Management Company Limited | Households | 2012 |
| 353 Kennington Road Management Company Limited | Real estate | 2013 |
| 3537 Management Company Limited | Households | 2019 |
| 35WR Limited | Real estate | 2024 |
| 36 Ascott Avenue Ealing Limited | Real estate | 2007 |
| 36 Stoughton Road Freehold Limited | Households | 2026 |
| 360PROMOHUB Limited | Hospitality | 2025 |
| 360RED Productions Limited | Information & communication | 2007 |
| 360VUE Limited | Information & communication | 2019 |
| 365 Controls System Ltd | Professional & scientific | 2022 |
| 365 Directional Drilling Ltd | Construction | 2025 |
| 365 Electricians Limited | Construction | 2020 |
| 365 Field Sales Ltd | Wholesale & retail | 2025 |
| 365 Holdings Limited | Financial services | 2016 |
| 365 Languages Ltd | Professional & scientific | 2025 |
| 365 Lets Ltd | Real estate | 2019 |
| 365 Nagra Holdings Ltd | Financial services | 2025 |
| 365 Residential Development Limited | Construction | 2024 |
| 365 Safetywear Ltd | Wholesale & retail | 2026 |
| 365 Security Ltd | Administrative & support | 2017 |
| 365 VAC EX Northern Limited | Construction | 2023 |
| 365 Vacuum Excavation Ltd | Construction | 2021 |
| 365% Ltd | Other services | 2025 |
| 369 Film Studios Ltd. | Information & communication | 2017 |
| 36E Limited | Health & social care | 2022 |
| 39 Glenrosa Street Residents Limited | Real estate | 2007 |
| 3@38 Ltd. | Real estate | 2006 |
| 3A Investments Ltd | Real estate | 2013 |
| 3A'S&T Limited | Health & social care | 2020 |
| 3CM Limited | Real estate | 2025 |
| 3CS Care Services Limited | Education | 2025 |
| 3D Cleaning Services UK Ltd | Administrative & support | 2016 |
| 3D Laser Mapping Limited | Wholesale & retail | 1999 |
| 3D Pattern & Mouldmakers Limited | Manufacturing | 2000 |
| 3D Structure UK Ltd | Construction | 2024 |
| 3DM Properties Ltd | Real estate | 2021 |
| 3DNKYS Ltd | Real estate | 2024 |
| 3G Glazing Ltd | Construction | 2018 |