| Fractional Finance Management Services Limited | Professional & scientific | 2025 |
| Frampton Electrical Services Ltd | Construction | 2018 |
| Frank FOX Estates Ltd | Real estate | 2024 |
| Freedom for Freelancers Limited | Information & communication | 2025 |
| Freestate Supply Limited | Wholesale & retail | 2026 |
| Freeway Med-Tech Ltd | Other services | 2020 |
| Freeway Medical Limited | Professional & scientific | 1998 |
| Freshly Squeezed Water Systems Limited | Water & waste | 2004 |
| Frimley Logistics City Limited | Real estate | 2019 |
| Frog Records Limited | Information & communication | 2005 |
| From Josie Scarlet Beauty Limited | Other services | 2024 |
| Frontier Pathways Ltd | Other services | 2026 |
| Frontiers Meetings Limited | Information & communication | 2018 |
| Frontside Skate School Ltd | Arts & recreation | 2024 |
| Frost Lighting Ltd | Professional & scientific | 2021 |
| FSE Business Services Limited | Financial services | 2022 |
| FSE C.I.C. | Administrative & support | 2002 |
| FSE Closif Carry LLP | | 2018 |
| FSE Co-Invest Ltd | Financial services | 2019 |
| FSE Fund Managers Limited | Financial services | 2005 |
| FSE Future London Carry LP | | 2026 |
| FSE Future London GP LLP | | 2026 |
| FSE IFS Debt GP Limited | Financial services | 2023 |
| FSE Loan Management Limited | Financial services | 2004 |
| FSE Meif Carry LLP | | 2019 |
| FSE Meif GP Ltd | Financial services | 2019 |
| FSE Meif LP | | 2020 |
| FSE Nominees Limited | Financial services | 2018 |
| FSE Seif Debt Carry LLP | | 2026 |
| FSE Seif Debt GP Limited | Financial services | 2025 |
| FSE Swif Debt Carry LLP | | 2023 |
| FSE Swif Debt GP Limited | Financial services | 2023 |
| FSE Swif Equity Carry LLP | | 2023 |
| FSE Swif Equity GP Limited | Financial services | 2023 |
| FSG Exterior Solutions Ltd | Construction | 2024 |
| Ftcc Property Investments Ltd | Real estate | 2021 |
| Full Circle 360 Ltd | Manufacturing | 2014 |
| Full Effect Beauty Ltd | Other services | 2026 |
| Full OUT Travel Ltd | Administrative & support | 2025 |
| Fusion Spaces Limited | Professional & scientific | 2014 |
| FUTSAL4U Ltd | Arts & recreation | 2015 |
| Future London Growth Fund I LP | | 2026 |
| Future Mobility Strategy & Consultancy Ltd | Professional & scientific | 2025 |
| FYI Loan GP Limited | Financial services | 2021 |
| FYI Microloan GP Limited | Financial services | 2021 |
| G Lucas Services Ltd | Information & communication | 2019 |
| G&G Tech Ltd | Information & communication | 2023 |
| G-Snap Limited | Real estate | 2013 |
| G. Gabb Consulting Ltd | Professional & scientific | 2013 |
| G2 People Consultancy Ltd | Administrative & support | 2025 |
| G4 Projects Ltd | Construction | 2019 |
| Gabcom Consulting Services Ltd | Other services | 2014 |
| Gadget Fleet Ltd | Administrative & support | 2017 |
| Gadgeteering Ltd | Manufacturing | 2010 |
| Gains App Ltd | Information & communication | 2025 |
| Gally Hill Consulting Limited | Professional & scientific | 2014 |
| Gamertech Ltd | Information & communication | 2022 |
| Garmel Consultancy Limited | Professional & scientific | 2016 |
| Gary Grinham Limited | Construction | 2026 |
| Gary Malkin Ltd | Professional & scientific | 2011 |
| GAS Switch Limited | Construction | 1998 |
| Gavin Davis Art Limited | Information & communication | 2023 |
| GBS Corporate Training Limited | Education | 2007 |
| Gbtracking Limited | Wholesale & retail | 2025 |
| GCS Combine UK Ltd | Wholesale & retail | 2026 |
| GDI (Services) Ltd | Education | 2013 |
| George Farmiloe & Sons Holdings Limited | Professional & scientific | 2011 |
| George Farmiloe & Sons Limited | Real estate | 1897 |
| George Farmiloe & Sons Trading Limited | Professional & scientific | 2011 |
| George Gore Sports Therapy Ltd | Health & social care | 2024 |
| George Own Ltd | Professional & scientific | 2022 |
| German Drinks Co Limited | Wholesale & retail | 2006 |
| GET With the Program (Global) Ltd | Education | 2023 |
| GET With the Program Ltd | Education | 2019 |
| Ggst Group Holdings Limited | Financial services | 2025 |
| Ggst Services Ltd | Health & social care | 2026 |
| Ghag Property Management Limited | Real estate | 2010 |
| GHH Decorating Ltd | Construction | 2016 |
| Ghost Video Ltd | Professional & scientific | 2022 |
| Gilchrist Services Ltd | Construction | 2010 |
| Gilescourt Limited | Households | 1976 |
| Gilleran Consulting Limited | Financial services | 2010 |
| Gillingham Pottery Brick and Tile Company Limited(The) | Real estate | 1865 |
| Gingerneering Solutions Limited | Administrative & support | 2014 |
| Ginkgo Families Ltd | Real estate | 2014 |
| Girl and the Stars Ltd | Wholesale & retail | 2022 |
| GJ Talent Consulting Ltd | Professional & scientific | 2025 |
| GJK Traffic Management Ltd | Construction | 2022 |
| GKM Divine Services Limited | Public administration | 2019 |
| Glif LD GP Ltd | Financial services | 2019 |
| Glif LD LP | | 2019 |
| Glif SD GP Ltd | Financial services | 2019 |
| Glif SD LP | | 2019 |
| Glimps Technology Ltd | Information & communication | 2024 |
| Global Sustainability Index Ltd | Professional & scientific | 2023 |
| Glow Broadcasting Group Limited | Information & communication | 2024 |
| Glow UP Experts Limited | Administrative & support | 2026 |
| Glowing EGG Ltd | Extraterritorial | 2022 |
| GNR Chauffeur Service Limited | Transport & logistics | 2024 |
| GNR PVT Limited | Transport & logistics | 2017 |