| Flat Conversions Limited | Real estate | 2023 |
| Flat Maintenance Services Limited | Administrative & support | 2014 |
| Flat Quest Limited | Real estate | 1996 |
| Flatt Consulting Limited | Professional & scientific | 2003 |
| Flhre Ltd | Arts & recreation | 2019 |
| FLOOR2CEILING Cleaning Ltd | Administrative & support | 2020 |
| Flourish Retail Limited | Professional & scientific | 2018 |
| Flow Therapy Ltd | Other services | 2025 |
| Flower Salon Ltd | Other services | 2024 |
| FLY4SPORTS Limited | Administrative & support | 2000 |
| Folly's END | Education | 2002 |
| Fordham Leadwork Limited | Construction | 2019 |
| Forefront Electrical Services Ltd | Construction | 2016 |
| Forestdale Business Travel Ltd | Administrative & support | 2023 |
| Forestdale Properties Limited | Real estate | 1983 |
| Foresthill Properties Holdings Limited | Real estate | 2025 |
| Foresthill Properties Limited | Real estate | 2018 |
| Formaldecraft Limited | Other services | 2024 |
| Forthlin Management Services Limited | Professional & scientific | 2022 |
| Fortitude Homes Ltd | Financial services | 2023 |
| Forward GB Limited | Construction | 2005 |
| Foundry Watches Limited | Wholesale & retail | 2026 |
| Fourways Construction Limited | Construction | 2022 |
| Foxberry Court Limited | Households | 1995 |
| Foxburrowai Ltd | Information & communication | 2025 |
| Foxleys Property Development Limited | Real estate | 2014 |
| Foxy Electrical Wholesalers Limited | Wholesale & retail | 2010 |
| Fozgin Limited | Information & communication | 2012 |
| Fractitioners Limited | Information & communication | 2024 |
| Francis Cafe Ltd | Hospitality | 2016 |
| Franklin Royle Limited | Professional & scientific | 2024 |
| Frederick Clobus Properties Ltd | Real estate | 2024 |
| Fresh Golf Limited | Arts & recreation | 2003 |
| Freshly Baked Fightwear Ltd | Wholesale & retail | 2023 |
| Fritz Electrical Contractors Ltd | Construction | 2024 |
| Frizzecco Ltd | Wholesale & retail | 2017 |
| Fry-Carpentry Ltd | Construction | 2021 |
| Fulcro Tech Ltd | Information & communication | 2024 |
| Funnell 1967 Limited | Extraterritorial | 2013 |
| Fusion Canterbury LLP | | 2007 |
| Fusion ETC. Limited | Real estate | 2002 |
| Futronix Limited | Wholesale & retail | 1993 |
| Future Zone Landscaping Limited | Administrative & support | 2025 |
| Futureground Limited | Professional & scientific | 2010 |
| Futures Investment Ltd | Real estate | 2021 |
| Fuzzypeg Design Limited | Manufacturing | 2002 |
| G.J. Edgar & Company Limited | Real estate | 2007 |
| G2 Brothers Construction Ltd | Construction | 2023 |
| Gala Maintenance Services Limited | Administrative & support | 2021 |
| Galeway Properties Ltd | Real estate | 2020 |
| Gamma Asset Finance LLP | | 2010 |
| Gamma Capital Limited | Extraterritorial | 2009 |
| Garbett Offshore & Maritime Ltd | Professional & scientific | 2020 |
| Garnerice Ltd | Administrative & support | 2016 |
| Gathered & Found Ltd | Information & communication | 2019 |
| Gayle Chien Ltd | Administrative & support | 2017 |
| Gayle Chien Properties Ltd | Real estate | 2026 |
| GB Education Ltd | Education | 2018 |
| Geektech Ltd | Administrative & support | 2010 |
| Geemae Limited | Administrative & support | 2026 |
| Gemini RNJ Co & Ltd | Households | 2021 |
| General Building Company Limited(The) | Real estate | 1983 |
| Genistar Affiliates Limited | Administrative & support | 2012 |
| Genistar Asset Protection Ltd | Education | 2014 |
| Genistar Limited | Financial services | 2007 |
| Genistar Mortgages Limited | Financial services | 2013 |
| Geogals Limited | Professional & scientific | 2017 |
| George Calver Architects Limited | Professional & scientific | 2018 |
| George Smith of City Road Limited | Real estate | 1938 |
| GET Aviation Limited | Extraterritorial | 2020 |
| GET Kids Tired Limited | Arts & recreation | 2020 |
| GET Progress Limited | Professional & scientific | 2020 |
| GET Renovate Limited | Construction | 2020 |
| Getmyfirstjob Ltd | Information & communication | 2008 |
| GIA Beauty Ltd | Other services | 2018 |
| Gigamoon Ltd | Real estate | 2017 |
| Gill Beauty Limited | Other services | 2015 |
| Gill Property Limited | Real estate | 2015 |
| Gill Residential Property Limited | Real estate | 2021 |
| Gillett Home Care Services Limited | Health & social care | 2015 |
| Ginuar Limited | Wholesale & retail | 2026 |
| GK Office Limited | Administrative & support | 2017 |
| Glass Property Holdings Limited | Financial services | 2020 |
| Glissen Ltd | Other services | 2025 |
| Global Impact Consulting Group Limited | Public administration | 2020 |
| Global Sports Infrastructure Ltd | Manufacturing | 2024 |
| Glyn Richards Plumbing and Heating Ltd | Construction | 2021 |
| GM Pro Landscape and Building Services Limited | Administrative & support | 2016 |
| Goddard Landscaping Ltd | Administrative & support | 2023 |
| Goddard Tree Surgeons Ltd | Administrative & support | 2014 |
| Godstone Green Limited | Households | 2019 |
| Goffs Land Limited | Real estate | 2022 |
| Goldedge Developments Limited | Real estate | 2019 |
| Goldedge Property Limited | Households | 2017 |
| Goldhammer Limited | Administrative & support | 1992 |
| Goldservice Contract Cleaning Ltd | Administrative & support | 2006 |
| Good Grief Music Ltd | Information & communication | 2023 |
| Goodhart Associates Ltd | Administrative & support | 2016 |
| Governance Risk & Assurance Consultancy Services Ltd | Administrative & support | 2005 |
| Gowrie Aviation Ltd | Professional & scientific | 2025 |