| Futago Ltd | Real estate | 2026 |
| Futhee Consulting Ltd | Professional & scientific | 2026 |
| Future Development (Services) Limited | Construction | 2003 |
| Future Hotels & Resorts Ltd | Professional & scientific | 2017 |
| Future Housing Management Ltd | Professional & scientific | 2002 |
| Futures Property Company Limited | Financial services | 2023 |
| Futureventura Ltd | Real estate | 2021 |
| Futurewave IT Ltd | Information & communication | 2024 |
| FX5 Consulting Limited | Professional & scientific | 2024 |
| FX5 Investments Limited | Professional & scientific | 2025 |
| FX5 Limited | Professional & scientific | 2024 |
| G & a Ward Property Investments Limited | Real estate | 2017 |
| G & S Baker Limited | Wholesale & retail | 2002 |
| G a Dean Limited | Agriculture & fishing | 2005 |
| G Alan Consulting Ltd | Information & communication | 2021 |
| G B Leadworks Limited | Construction | 2016 |
| G Daniel Building & Maintenance Limited | Construction | 2011 |
| G Force Supplements Ltd | Wholesale & retail | 2025 |
| G K Plant Hire Ltd. | Administrative & support | 2008 |
| G N L Windows Limited | Construction | 2018 |
| G Plant Support Services Limited | Administrative & support | 2020 |
| G T B Automotive Limited | Financial services | 2022 |
| G&J Consultancy Services Ltd | Information & communication | 2026 |
| G&M Building & Property Services Ltd | Construction | 2025 |
| G. S. Woodvine Farming Limited | Agriculture & fishing | 2005 |
| G.B. Ward (Builders) Ltd | Construction | 1998 |
| Gaapwise Advisory Ltd | Professional & scientific | 2022 |
| Gabude Limited | Information & communication | 2003 |
| GAC Consultants Ltd | Professional & scientific | 2025 |
| Galcas Consulting Ltd | Information & communication | 2023 |
| Galingale Limited | Agriculture & fishing | 2020 |
| Gallatech Solutions Limited | Information & communication | 2025 |
| Galley Investments Limited | Professional & scientific | 1996 |
| Gambit Designs Limited | Professional & scientific | 2012 |
| Gambit Properties Limited | Households | 1997 |
| Gamevisionx Ltd | Education | 2025 |
| Garden House (Cuthburga Road) Management Company Limited | Households | 2017 |
| Garden Room Solutions Ltd | Construction | 2020 |
| Garden Tower Properties Limited | Real estate | 2017 |
| Gardesons Ltd | Real estate | 2025 |
| Gardner Elkins Consulting Limited | Professional & scientific | 2005 |
| Garrett Dorset Holdings Limited | Financial services | 2021 |
| Garrett Dorset Limited | Wholesale & retail | 2019 |
| Garrett Green Limited | Transport & logistics | 2025 |
| Garrick Carpentry Ltd | Manufacturing | 2024 |
| Garside & Garside Ltd | Professional & scientific | 2021 |
| Gary Angell Racing Ltd | Wholesale & retail | 2009 |
| Gary Chappell Limited | Administrative & support | 2011 |
| Gary Duncan Limited | Wholesale & retail | 1978 |
| Gary Rhodes IT Consulting Limited | Information & communication | 2021 |
| GAS and Plumbing Services Ltd | Construction | 2026 |
| GAS Heat Technology Ltd | Construction | 2021 |
| Gasoline Audio Design & Consultancy Ltd | Other services | 2017 |
| Gasoline Media Ltd. | Administrative & support | 2000 |
| Gastrofix Ltd | Manufacturing | 2025 |
| Gath Limited | Real estate | 2016 |
| Gaudi Trustees Limited | Financial services | 2012 |
| Gaunts Estate Trustee Company Limited | Professional & scientific | 2026 |
| Gautama Consulting Ltd | Information & communication | 2025 |
| GB Properties Investment Limited | Real estate | 2024 |
| GBD Design Limited | Professional & scientific | 2021 |
| GC Carpentry & Joinery Limited | Construction | 2022 |
| Gcgd Limited | Real estate | 2011 |
| GDM Manufacturing Limited | Manufacturing | 1998 |
| Geartopia UK Limited | Wholesale & retail | 2024 |
| Geary Ltd | Professional & scientific | 2022 |
| Gecko Entertainment Technology Ltd | Professional & scientific | 2007 |
| GEE BEE Flying Ltd | Transport & logistics | 2020 |
| Geere-Up Limited | Information & communication | 2020 |
| GEM Holiday Home Services Ltd | Administrative & support | 2024 |
| Gemma Marie Properties Ltd | Real estate | 2025 |
| Gemmoor Investment Company Limited | Real estate | 1962 |
| General Practice Locum Limited | Health & social care | 2014 |
| General Semiconductor Industries (Holdings) Limited | Professional & scientific | 2007 |
| General Semiconductor Industries Limited | Wholesale & retail | 1994 |
| Generation 21 Limited | Education | 2018 |
| Genesis Construction Limited | Construction | 2003 |
| Genesis Risk Ltd | Professional & scientific | 2022 |
| Genpunk Ltd | Information & communication | 2024 |
| Gentle Wave Medical Communications Limited | Professional & scientific | 2021 |
| Genview Limited | Professional & scientific | 2022 |
| Geoff Paffett Personal Financial Planning Services Limited | Professional & scientific | 2001 |
| Geoid Project Management Limited | Information & communication | 2021 |
| Georgiana Cecil Ltd | Administrative & support | 2026 |
| Geosuccess Limited | Real estate | 2024 |
| Gerit Properties Limited | Real estate | 2025 |
| Gervis PLC | Professional & scientific | 2008 |
| Getnew Limited | Information & communication | 2016 |
| Getopts Ltd | Information & communication | 2010 |
| GEX Aviation Limited | Professional & scientific | 2020 |
| GF (Great Britain) Limited | Wholesale & retail | 2006 |
| Gfix Ltd | Information & communication | 2012 |
| GG-170-706 Limited | Real estate | 2021 |
| GGM Infosec Services Limited | Administrative & support | 2024 |
| GIB Studios Limited | Information & communication | 2023 |
| Gibbs Marine Limited | Professional & scientific | 2013 |
| Gibson Creative Ltd | Professional & scientific | 2004 |
| Giles Property Developers Limited | Construction | 2017 |
| Gillam Projects Limited | Construction | 2020 |
| Giraffa Consultancy Ltd | Information & communication | 2025 |