| Flylab Ltd | Other services | 2023 |
| Forde Abandoned Vehicle & Storage Ltd | Other services | 2024 |
| Forty Five/Forty SIX Lancaster Gate Limited | Households | 1995 |
| Four Houses Fosl Ltd | Households | 2025 |
| Fourtyseven Investments Limited | Administrative & support | 2011 |
| FOX Road Limited | Real estate | 2020 |
| Foxcroft Management Company Ltd | Households | 2018 |
| Frama RE Limited | Administrative & support | 2017 |
| Frankrose Co Ltd | Professional & scientific | 2024 |
| Fresh Takeaway Ltd | Wholesale & retail | 2015 |
| Friendly Robot Ltd | Information & communication | 2020 |
| Frontier Capital Corporation Limited | Real estate | 2016 |
| FT Scenic Ltd | Construction | 2025 |
| Fuel Chip Limited | Agriculture & fishing | 2011 |
| Fulmer Electrical Ltd | Construction | 2022 |
| Fvce Ltd. | Health & social care | 2018 |
| G & J Contractors Ltd | Construction | 2023 |
| G Advisors Limited | Professional & scientific | 2021 |
| G Motors Limited | Wholesale & retail | 2025 |
| G Thomas Commercials Ltd | Wholesale & retail | 2022 |
| G Turna Constructions Limited | Construction | 2025 |
| G.H. Builders Limited | Real estate | 1968 |
| Gallagher Integrated Systems Ltd | Professional & scientific | 2024 |
| Galvatech Ltd | Manufacturing | 2026 |
| Gana Private Limited | Construction | 2013 |
| Garcha Properties Investment Limited | Real estate | 1999 |
| Garthland Limited | Administrative & support | 2015 |
| GAS Essentials Ltd | Professional & scientific | 2017 |
| Gatherwell Group Limited | Health & social care | 2026 |
| GB Sports Cars Limited | Wholesale & retail | 1995 |
| GDM Property Ltd | Real estate | 2020 |
| Genesis Print Solutions Limited | Administrative & support | 2007 |
| Genzrecruitz Ltd | Professional & scientific | 2024 |
| GEO Parking Ltd | Hospitality | 2019 |
| GET Smart Barbers Ltd | Other services | 2017 |
| GFB Build & Engineering Ltd | Construction | 2025 |
| GFC Builders Ltd | Construction | 2022 |
| GFS Cargo (UK) Ltd | Transport & logistics | 2014 |
| GFS Express & Logistics Limited | Transport & logistics | 2009 |
| Ghataaura Solutions Ltd | Information & communication | 2017 |
| Gilcomp Services Limited | Construction | 1999 |
| Gilder Property Logic Ltd | Construction | 2018 |
| Gill Capital Homes Limited | Real estate | 2018 |
| Gill Capital Management Ltd | Real estate | 2020 |
| Gill Capital Ventures Limited | Real estate | 2017 |
| Gillcap Commercial Limited | Real estate | 2019 |
| Gillsons Services Ltd | Information & communication | 2017 |
| Gioia LDN Ltd | Wholesale & retail | 2025 |
| Giuseppe Zeno Family Group Ltd | Administrative & support | 2017 |
| Global London Ltd | Wholesale & retail | 2016 |
| Global Recycling Corp Ltd | Wholesale & retail | 2019 |
| Globex Logistics Ltd | Transport & logistics | 2023 |
| GMS Construction Ltd | Construction | 2024 |
| GND Home Refurb Ltd | Construction | 2024 |
| Go 4 Accountancy Solutions Ltd | Professional & scientific | 2019 |
| Go Green Mobile Ltd | Wholesale & retail | 2021 |
| Go Lamp Limited | Construction | 2021 |
| Golden House Improvements Ltd | Construction | 2022 |
| Goldstar (Berkshire) Ltd | Hospitality | 2022 |
| Gosal & Co Properties Ltd | Real estate | 2023 |
| Gosal Property Management Ltd | Real estate | 2021 |
| Great Norfolk Avenue Limited | Households | 2019 |
| Greenfiields Ltd | Financial services | 2025 |
| Grewal Design and Build Limited | Real estate | 2025 |
| Grewal Scaffolding Ltd | Construction | 2016 |
| Grimsby Convenience Ltd | Wholesale & retail | 2021 |
| Groford LLP | | 2021 |
| Groundworksuk Ltd | Construction | 2024 |
| GT Motors & Recoveries Ltd | Wholesale & retail | 2012 |
| Gulf Freight Services Limited | Extraterritorial | 2009 |
| H & S Decorating Specialists Limited | Construction | 1994 |
| H Bhogal Limited | Information & communication | 2022 |
| H J Properies Ltd | Real estate | 2025 |
| H&H Electric Limited | Construction | 2026 |
| H&M Solutions Limited | Transport & logistics | 2022 |
| H-Form Construction Limited | Construction | 2026 |
| H888 Limited | Construction | 2021 |
| Hamills Car Services Ltd | Wholesale & retail | 2025 |
| Handled Technologies Ltd | Information & communication | 2026 |
| Happyhome Investment Ltd | Wholesale & retail | 2021 |
| Harmony Properties Limited | Real estate | 1977 |
| Harmony Securities Limited | Real estate | 1994 |
| Harp Gill Limited | Wholesale & retail | 2002 |
| Harry Construction Limited | Construction | 2007 |
| Harry Ryan Homes Ltd | Real estate | 2024 |
| Hawthorn & Jackson Limited | Real estate | 2024 |
| Hawthorne Mews Management Company Ltd | Extraterritorial | 2014 |
| Hawtrey Developments 2 Ltd | Real estate | 2020 |
| Hawtrey Developments Ltd | Construction | 2017 |
| Hawtrey Estates Ltd | Real estate | 2023 |
| Hayes Kabaddi Club London Ltd | Education | 2023 |
| Hazran Services Ltd | Transport & logistics | 2025 |
| HBN Property Limited | Real estate | 2021 |
| HCL Formwork & Civil Engineering Ltd | Construction | 2015 |
| HD & SD Holdings Ltd | Professional & scientific | 2013 |
| HD VIP Enterprises Limited | Other services | 2017 |
| HDA Property Services Ltd | Construction | 2022 |
| HDS Locums Limited | Wholesale & retail | 2019 |
| Health, Training & Development Ltd | Arts & recreation | 2012 |
| Heathrow Gateway Ltd | Real estate | 2019 |