| 360 Cleaning Services Limited | Administrative & support | 2014 |
| 360 Commercial Limited | Real estate | 2022 |
| 360 HR & Payroll Implementations Limited | Professional & scientific | 2023 |
| 360 Maintenance Solutions Limited | Construction | 2025 |
| 360 Management Solutions Limited | Real estate | 2006 |
| 360 Networks Limited | Information & communication | 2020 |
| 360 Networx Limited | Construction | 2022 |
| 360 Services Group Limited | Administrative & support | 2014 |
| 360 UK Group Limited | Financial services | 2022 |
| 365 Engineering Solutions Ltd | Professional & scientific | 2022 |
| 365OPTIMISE Limited | Information & communication | 2022 |
| 3BM Holdings Limited | Construction | 2022 |
| 3D Gift Ltd | Manufacturing | 2025 |
| 3D Management and Consultancy Ltd | Real estate | 2004 |
| 3D Planning Limited | Administrative & support | 2007 |
| 3D Print With CAD Ltd | Manufacturing | 2026 |
| 3D Revolution Ltd | Manufacturing | 2023 |
| 3D Tooth LAB Limited | Health & social care | 2024 |
| 3G Holdings Ltd | Financial services | 2025 |
| 3K Holdings Ltd | Hospitality | 2024 |
| 3KM Car Repairs Ltd | Wholesale & retail | 2020 |
| 3LT Property Ltd | Real estate | 2023 |
| 3M Driver Ltd | Transport & logistics | 2019 |
| 3P Properties Limited | Real estate | 2002 |
| 3SIXTY IT Services Limited | Information & communication | 2016 |
| 3SIXTY Resourcing Ltd | Administrative & support | 2018 |
| 3V Estates Ltd | Real estate | 2023 |
| 3WAYDRVG Ltd | Wholesale & retail | 2026 |
| 4 Aluminium Ltd | Manufacturing | 2015 |
| 4 Floor Fitting Ltd | Construction | 2023 |
| 4 Huntingdon Road Limited | Real estate | 2019 |
| 4 Seasons Glazing Ltd | Manufacturing | 2022 |
| 4 Trade MK (UK) + LLP | | 2025 |
| 4 Vision Ltd | Wholesale & retail | 2025 |
| 44 Property Developments Limited | Construction | 2017 |
| 499 Oundle Road Limited | Other services | 2024 |
| 4BRIE.TRANSPORT. Ltd | Transport & logistics | 2025 |
| 4D Home Improvements Limited | Construction | 2008 |
| 4D Measurement Services Ltd | Professional & scientific | 2010 |
| 4K-TRADE UK + Ltd | Mining & quarrying | 2025 |
| 4N & M Ltd | Public administration | 2022 |
| 4SHAW Practice Solutions Ltd | Professional & scientific | 2013 |
| 4TH Floor Studios Limited | Administrative & support | 2015 |
| 4WARD Haulage Limited | Extraterritorial | 2025 |
| 4XD IT Solutions Limited | Information & communication | 2025 |
| 5 Star Airport Transfer Ltd | Transport & logistics | 2022 |
| 5 Star Transport Services Limited | Transport & logistics | 2022 |
| 5 West Limited | Arts & recreation | 2003 |
| 555 Cocktail Bar Ltd | Hospitality | 2025 |
| 57 High ST Ltd | Hospitality | 2025 |
| 5AK Ltd | Transport & logistics | 2026 |
| 5D Construction Ltd | Construction | 2024 |
| 5F Marketing Ltd | Other services | 2020 |
| 5T Ventures Ltd | Professional & scientific | 2020 |
| 6 and 6A Minster Precincts Limited | Households | 2017 |
| 626 & Daughters TCG Ltd | Wholesale & retail | 2025 |
| 64 WR Limited | Professional & scientific | 2013 |
| 66 North Street Limited | Hospitality | 2018 |
| 666 Protection Ltd | Administrative & support | 2025 |
| 69 Temple Street Ltd | Real estate | 2014 |
| 69 Temple Street Management Limited | Real estate | 2018 |
| 69-71HIGH Street Maxey Limited | Extraterritorial | 2015 |
| 7 Cardigan Road Limited | Households | 1993 |
| 7 Day Drive Ltd | Wholesale & retail | 2025 |
| 7 Fleet Network Limited | Wholesale & retail | 2022 |
| 7 Mayfair TIN Ltd | Real estate | 2023 |
| 713 Cowbit Limited | Construction | 2023 |
| 713 Fleet Ltd | Construction | 2024 |
| 713 Gosberton Ltd | Construction | 2024 |
| 713 Group Ltd | Construction | 2024 |
| 713 Holbeach Limited | Construction | 2023 |
| 726B Limited | Information & communication | 2023 |
| 73 WR Limited | Hospitality | 2015 |
| 77 South Beach Road Management Company Limited | Households | 2007 |
| 777 Logistic Ltd | Wholesale & retail | 2016 |
| 777 Transport Services Ltd | Transport & logistics | 2024 |
| 78 Burmer Road Ltd | Real estate | 2020 |
| 7HEARTCARE Ltd | Health & social care | 2025 |
| 7SEAS Direct Ltd | Real estate | 2013 |
| 7T5 Solutions Ltd | Information & communication | 2019 |
| 8 Avenue Ltd | Administrative & support | 2019 |
| 8 Management Ltd | Administrative & support | 2024 |
| 8 Mgmt Events Ltd | Professional & scientific | 2025 |
| 8-10 Thorpe Meadows Management Limited | Households | 2004 |
| 8/5 Electrical Limited | Construction | 2008 |
| 80-92 Benefield Road (Management Company) Ltd | Households | 2020 |
| 808 Talent Ltd | Professional & scientific | 2014 |
| 828 Medics Ltd | Health & social care | 2013 |
| 84 Malden Road (Freehold) Limited | Households | 2021 |
| 86 Auto Ltd | Wholesale & retail | 2026 |
| 86 Brookfurlong Ltd | Real estate | 2021 |
| 861 Transport & Repair Ltd | Transport & logistics | 2025 |
| 888 Property Investments Limited | Real estate | 2016 |
| 9 Bucktorn Road Ltd | Real estate | 2024 |
| 9 Pembroke Consultancy Ltd | Other services | 2025 |
| 911P.CO.UK. Limited | Wholesale & retail | 2013 |
| 93 Flamborough Limited | Real estate | 2022 |
| 97 Developments Ltd | Construction | 2024 |
| 9REGAL Limited | Professional & scientific | 2017 |
| 9T9T Ltd | Professional & scientific | 2022 |