| Future Visions Limited | Health & social care | 2005 |
| FX Living Limited | Construction | 2025 |
| G&J Hope Ltd | Hospitality | 2019 |
| G.C. Nominees Limited | Administrative & support | 2007 |
| Galleon Global Ltd | Manufacturing | 2024 |
| Gateway Hotel Limited | Hospitality | 2004 |
| GBR I DC 1 Limited | Construction | 2026 |
| GBR I DC 10 Limited | Construction | 2026 |
| GBR I DC 3 Limited | Construction | 2026 |
| GBR I DC 5 Limited | Construction | 2026 |
| GBR I DC 6 Limited | Construction | 2026 |
| GBR I DC 7 Limited | Construction | 2026 |
| GBR I DC 8 Limited | Construction | 2026 |
| Genial Ventures Limited | Professional & scientific | 2023 |
| Glasshill Holdco Limited | Financial services | 2026 |
| Global Ecomuk Ltd | Wholesale & retail | 2026 |
| Global Threat Solutions Emea Limited | Administrative & support | 2026 |
| Glyde Rentals Limited | Administrative & support | 2025 |
| Golden Bridge Intelligence Ltd | Wholesale & retail | 2025 |
| Grand Tour Studio Ltd | Professional & scientific | 2025 |
| Graphene Estates Limited | Real estate | 2023 |
| Greener Plants Limited | Wholesale & retail | 2024 |
| Greenwich South Street Residents Ltd | Real estate | 1996 |
| Greenwood London Ltd | Wholesale & retail | 2022 |
| Greta Studio Ltd | Information & communication | 2022 |
| Groupon Enterprises Ltd | Hospitality | 2025 |
| Grove Park Deli Limited | Wholesale & retail | 2005 |
| Guardian Claims Advocates Limited | Wholesale & retail | 2022 |
| Gulf Energy Development Limited | Professional & scientific | 2026 |
| Haniz Properties Ltd | Real estate | 2023 |
| Hannad Properties Limited | Real estate | 2018 |
| Haris Holdings Ltd | Real estate | 2023 |
| Harmony Goods Ltd | Wholesale & retail | 2025 |
| Hashim Drycleaners Ltd | Other services | 2021 |
| Healthspan Technologies Holdings Limited | Health & social care | 2026 |
| Heathrow Hybrid Auto Mechanic Ltd | Wholesale & retail | 2023 |
| Hill Park Express Ltd | Wholesale & retail | 2022 |
| Himalayan Space Solutions Ltd | Professional & scientific | 2026 |
| HMN Services Limited | Administrative & support | 2021 |
| Hollingbourne Property Services Limited | Construction | 1983 |
| Homehapp AI Ltd | Information & communication | 2025 |
| Homes Invest Solutions Ltd | Real estate | 2024 |
| Horne Property Group Ltd | Real estate | 2024 |
| House of Kenza Ltd | Wholesale & retail | 2025 |
| Hrbot Ltd | Professional & scientific | 2024 |
| Hublin Limited | Information & communication | 2023 |
| Huddle Muddle Limited | Information & communication | 2017 |
| Humblecare Ltd | Health & social care | 2024 |
| Ieng Limited | Professional & scientific | 2023 |
| Imet Ltd | Wholesale & retail | 2025 |
| Includeme Services Ltd | Professional & scientific | 2021 |
| Ingenirna Limited | Professional & scientific | 2025 |
| Inmorphis Consulting Limited | Information & communication | 2024 |
| Insite X Ltd | Information & communication | 2023 |
| Integrum Advisory Ltd | Professional & scientific | 2019 |
| Inti Solutions Limited | Information & communication | 2007 |
| Ironhall Payments Ltd | Financial services | 2026 |
| Ironlast Limited | Financial services | 2025 |
| Irontor Ltd | Professional & scientific | 2014 |
| Itskode Ltd | Information & communication | 2026 |
| Jadetheme Limited | Extraterritorial | 1997 |
| Jasmine Yoga & Wellbeing Limited | Other services | 2019 |
| JAZ Lifts Coaching Ltd | Education | 2023 |
| JCS (Housing) Investments Limited | Hospitality | 2021 |
| JDH Trades Limited | Wholesale & retail | 2026 |
| Jectus Properties 2 Limited | Real estate | 2023 |
| Jensh Limited | Professional & scientific | 2018 |
| Jftobal Intelligent Data Solutions Ltd | Information & communication | 2023 |
| Jibuu Limited | Real estate | 2021 |
| JL & SS Limited | Health & social care | 2025 |
| Jojos Culinary Ltd | Hospitality | 2026 |
| Jupiter Financial Solutions Ltd | Financial services | 2021 |
| K P a Products Limited | Construction | 1991 |
| Kaishun UK Limited | Professional & scientific | 2023 |
| Kalna AI Ltd | Information & communication | 2025 |
| Kas-K Developments Ltd | Construction | 2025 |
| Kendo Home Limited | Real estate | 2024 |
| Kensington Plastic & Reconstructive Surgery Group Limited | Health & social care | 2025 |
| Key to Care Management Limited | Health & social care | 2014 |
| Keyz Entertainment Services Ltd | Professional & scientific | 2006 |
| Kijibyte Ltd | Information & communication | 2024 |
| KOH & KOH Limited | Construction | 2017 |
| Koodil Managements Ltd | Real estate | 2023 |
| Laks Electric Limited | Construction | 2005 |
| Laoning Ltd | Wholesale & retail | 2024 |
| Laser Developments (AJ) Ltd | Real estate | 2020 |
| Last Seven Limited | Arts & recreation | 2001 |
| Layered Creations Limited | Manufacturing | 2025 |
| LDN Real Estate Investments Limited | Construction | 2017 |
| LEC Associates Limited | Real estate | 2017 |
| Legal Surgeons Limited | Information & communication | 2007 |
| Lendery Ltd | Information & communication | 2014 |
| Leverton Search Ltd | Administrative & support | 2014 |
| Liquidea Limited | Information & communication | 2010 |
| Lithmas LLP | | 2026 |
| London Developments Group Ltd | Construction | 2024 |
| London Property Photography Limited | Professional & scientific | 2018 |
| Lornaraassu II Limited | Financial services | 2024 |
| Lornaraassu Limited | Financial services | 2021 |
| Lovelywork Limited | Professional & scientific | 2006 |