| Florin Thermal Insulation Ltd | Construction | 2019 |
| Flowers From Ltd | Wholesale & retail | 2013 |
| Flueshoe Limited | Manufacturing | 2015 |
| Fmaa Consulting Limited | Professional & scientific | 2018 |
| Foli Ifaogun Ltd | Households | 2026 |
| Food WE Love Nuxley Limited | Hospitality | 2025 |
| Foovo Ltd | Hospitality | 2025 |
| FORBES61 Ltd | Professional & scientific | 2025 |
| Forgive ME Films Ltd | Information & communication | 2025 |
| Formosa PB Ltd. | Information & communication | 2017 |
| Four Seasons Resolutions Ltd | Construction | 2024 |
| Fourten Applied Marketing Ltd | Professional & scientific | 2023 |
| Fourways London Limited | Construction | 2008 |
| Fovere Property Solutions Ltd | Real estate | 2026 |
| Fowler Resources Ltd | Professional & scientific | 2018 |
| Foxwell Film Productions Limited | Administrative & support | 2009 |
| Fractional People Ltd | Administrative & support | 2025 |
| Francemma Limited | Health & social care | 2015 |
| FRANKIE.D.I.4.Y. Limited | Construction | 2018 |
| FREEMIND5 Ltd | Professional & scientific | 2016 |
| Freeze Station Limited | Other services | 2017 |
| French Cars Limited | Manufacturing | 2025 |
| Frequency Scaffolding Ltd | Construction | 2019 |
| Freta Limited | Information & communication | 2014 |
| Freya&Co Ltd | Wholesale & retail | 2024 |
| Friends for Bexley CIC | Wholesale & retail | 2012 |
| Frilly's Tea Room Ltd | Hospitality | 2026 |
| FRY House Walderslade Limited | Hospitality | 2026 |
| Ftipson Sevices Ltd | Other services | 2012 |
| Funspex Limited | Information & communication | 2007 |
| FUR Puff Films Limited | Arts & recreation | 2023 |
| Fusionpro Ltd | Administrative & support | 2016 |
| Future Insights Network Ltd | Administrative & support | 2018 |
| Fxaglobal Services Ltd | Construction | 2020 |
| G & G Deli Limited | Hospitality | 2025 |
| G B Maintenance Limited | Administrative & support | 2003 |
| G J Consultants Limited | Other services | 2023 |
| G Valentine Limited | Professional & scientific | 2022 |
| G Yankulov Ltd | Construction | 2010 |
| G&D Mechanics Ltd | Construction | 2021 |
| G&S Maintenance Ltd | Administrative & support | 2006 |
| G&T Management Services Limited | Professional & scientific | 2017 |
| G.L Air Services Limited | Construction | 2018 |
| G.N.D. Erith & Woolwich Kabaddi Club B Ltd | Wholesale & retail | 2025 |
| Gagan CC Ltd | Arts & recreation | 2020 |
| Gagan Construction London Limited | Construction | 2019 |
| Galaxy Financial Solutions Ltd | Financial services | 2021 |
| GAP Technical Services Limited | Construction | 2017 |
| Garewal Ltd | Transport & logistics | 2020 |
| Garrad Consulting Ltd | Administrative & support | 2013 |
| Garrett Services Limited | Construction | 2024 |
| Garry HR & Strategic Consulting Private Ltd | Administrative & support | 2026 |
| Gate One Systems Limited | Administrative & support | 2006 |
| GB Networks Ltd | Administrative & support | 2014 |
| Gbogun Ltd | Administrative & support | 2022 |
| Gbsclothing Ltd | Wholesale & retail | 2026 |
| GCB Medic Limited | Health & social care | 2025 |
| GD Compliance Ltd | Manufacturing | 2025 |
| Gdfg Couriers Limited | Transport & logistics | 2023 |
| Gear and Repair Hub Limited | Wholesale & retail | 2025 |
| Gedexinfrastructures Ltd | Information & communication | 2026 |
| Gehna by Anjaneya Ltd | Wholesale & retail | 2024 |
| GEM Mortgages Ltd | Financial services | 2024 |
| Gemini Scenery Ltd | Construction | 2025 |
| Gemma Scout Hair Ltd | Other services | 2020 |
| Gems Renovations Ltd | Real estate | 2021 |
| Gemsworth Property Solutions Ltd | Hospitality | 2019 |
| Genalytics Limited | Professional & scientific | 2015 |
| Genarch Limited | Real estate | 2017 |
| Generation Tutors Ltd | Information & communication | 2003 |
| Generic Photography Ltd | Wholesale & retail | 2010 |
| Genesis-Beginnings LLP | | 2006 |
| Genet Property Limited | Real estate | 2009 |
| Genih Deals Ltd | Wholesale & retail | 2020 |
| Gentle Touch Cleaning Services Ltd | Administrative & support | 2026 |
| Geraldine Mcnulty Associates Limited | Administrative & support | 2015 |
| GET Connected (UK) Ltd | Information & communication | 2012 |
| GET IT UP Gains Ltd | Health & social care | 2024 |
| Ghab&Co Ltd | Real estate | 2017 |
| Ghannam Ltd | Health & social care | 2025 |
| Ghanshyam Limited | Wholesale & retail | 2021 |
| Ghar KI Chai Ltd | Manufacturing | 2020 |
| GI Jane Bootcamp Limited | Arts & recreation | 2011 |
| Gica Executive Search Ltd | Administrative & support | 1979 |
| Gifts From the Crypt Ltd | Wholesale & retail | 2020 |
| Gigamed Ltd | Health & social care | 2020 |
| Gilberts Mechanical and Ventilation Services Ltd | Construction | 2024 |
| Giles Construction Limited | Construction | 2017 |
| Gillian Roberts Bridal Gowns Limited | Wholesale & retail | 1986 |
| GJD Consulting Limited | Hospitality | 2025 |
| GK Technology Solutions Limited | Information & communication | 2013 |
| Gkrental Ltd | Real estate | 2022 |
| GL Direct Ltd | Real estate | 2023 |
| Glass House One Restaurant Ltd | Hospitality | 2024 |
| Glass Services Maintenance Ltd | Construction | 2022 |
| GLB London Ltd | Construction | 2025 |
| Glen BLS Company Limited | Information & communication | 2022 |
| Glisense Ltd | Information & communication | 2012 |
| Glistening Bros Ltd | Administrative & support | 2024 |
| Glmr Property Ltd | Real estate | 2021 |