| GEN Wheels Ltd | Administrative & support | 2025 |
| Genbricks Limited | Real estate | 2018 |
| Genbrook Limited | Information & communication | 2012 |
| Gencoautomotive Ltd | Wholesale & retail | 2025 |
| Gencomp (NO. 10) Limited | Manufacturing | 2012 |
| General Boiler Heating Services Limited | Construction | 2004 |
| General Service Solutions Ltd | Professional & scientific | 2025 |
| Generative AI Ltd | Information & communication | 2012 |
| Generative Engineering Ltd. | Professional & scientific | 2021 |
| Generic Online Limited | Information & communication | 2000 |
| Generic Product Limited | Wholesale & retail | 1996 |
| Generic Software Consultants Limited. | Information & communication | 1993 |
| Generis Care Ltd | Health & social care | 2024 |
| Genesis Childcare Ltd | Education | 2011 |
| Genesis Childcare Services Ltd | Health & social care | 2019 |
| Genesis Diversity Care Ltd | Health & social care | 2022 |
| Genesis Hospitality Ltd | Hospitality | 2024 |
| Genesis Inc Limited | Information & communication | 2024 |
| Genesis International Ltd | Manufacturing | 2025 |
| Genesis Invest Limited | Education | 2023 |
| Genesis Travel&Tours Ltd | Administrative & support | 2025 |
| Genesis UK Properties Ltd | Real estate | 2024 |
| Genesis Universal Consulting Limited | Information & communication | 2019 |
| Genesis Workforce Limited | Administrative & support | 2026 |
| Geng KUN MA Ltd. | Wholesale & retail | 2025 |
| Genialis Business Services Ltd | Professional & scientific | 2025 |
| Genie Sticks Ltd | Information & communication | 2026 |
| Genisys Technologies Limited | Information & communication | 2015 |
| Genone Construction Ltd | Construction | 2003 |
| Genova Estates Ltd | Extraterritorial | 2015 |
| Gensuccess Limited | Education | 2023 |
| Gentle Comfort Care Ltd | Health & social care | 2026 |
| Gentle Hands Services Limited | Health & social care | 2026 |
| Gentra Technologies Ltd | Manufacturing | 2026 |
| Gents Capital Ltd | Real estate | 2024 |
| Gentsrow Properties Limited | Real estate | 2007 |
| Genuity Aerospace & Defence Ltd | Information & communication | 2024 |
| Genvision Limited | Real estate | 2023 |
| Genwealth Limited | Education | 2023 |
| Genxcube Ltd | Information & communication | 2014 |
| Genxprop Limited | Real estate | 2020 |
| Genxsolutions Ltd | Information & communication | 2010 |
| GEO Investing Ltd | Real estate | 2023 |
| Geo&Sim Ltd | Transport & logistics | 2017 |
| Geo-Replica Ltd | Wholesale & retail | 2024 |
| Geobenmk Limited | Construction | 2025 |
| Geochron Limited | Professional & scientific | 2011 |
| Geodor Limited | Manufacturing | 2026 |
| Geoenergetix Ltd | Professional & scientific | 2024 |
| Geoeon Ltd | Information & communication | 2015 |
| Geoffrey Davies Limited | Professional & scientific | 2018 |
| Geoffrey Leaver Solicitors (Property) LLP | | 2006 |
| Geoffrey P Vine Limited | Construction | 2012 |
| Geoglobal Ltd | Professional & scientific | 2021 |
| Geoluca Ltd | Information & communication | 2025 |
| Geometra Consultants Limited | Professional & scientific | 2013 |
| Geopace Limited | Education | 2010 |
| Geopol Consultancy Ltd | Professional & scientific | 2025 |
| George Advisory Limited | Health & social care | 2013 |
| George B Properties Limited | Construction | 2019 |
| George&Asue Ltd | Transport & logistics | 2019 |
| George's Telecommunication Ltd | Information & communication | 2017 |
| Georgi Kebab Ltd | Hospitality | 2024 |
| Georgiev Electrical Ltd. | Professional & scientific | 2014 |
| Geospill Limited | Manufacturing | 2025 |
| Geotechnical Test Equipment Ltd | Manufacturing | 2019 |
| Geovi Trans Ltd | Transport & logistics | 2025 |
| GEP Innovation Ltd | Manufacturing | 2025 |
| Geralda Holdings Limited | Real estate | 2023 |
| Gerard Hairdressing Limited | Other services | 2003 |
| Geridoc Limited | Health & social care | 2019 |
| German House Ltd | Construction | 2019 |
| German Saturday School Milton Keynes Ltd | Education | 2020 |
| German Shows Ltd | Administrative & support | 2003 |
| Gerom Ltd | Transport & logistics | 2018 |
| Gerrards Services Ltd | Other services | 2023 |
| GES Systems Limited | Administrative & support | 2020 |
| Gest Group Limited | Real estate | 2025 |
| GET Ahead Knowledge Ltd | Education | 2017 |
| GET Care Limited | Administrative & support | 2016 |
| GET SET Stagehands Ltd | Information & communication | 2022 |
| GET Zapped Technologies Limited | Information & communication | 2022 |
| Get-Swept Limited | Administrative & support | 2026 |
| Getafade Ltd | Other services | 2024 |
| Geterepava Limited | Health & social care | 2024 |
| Gethsemane Families Worldwide Limited | Education | 2024 |
| Getlizzygraphics Ltd | Professional & scientific | 2026 |
| Getpower Ltd | Other services | 2024 |
| Getuta Cleaning Limited | Administrative & support | 2025 |
| GFC Payroll Barns Limited | Administrative & support | 2023 |
| Gfchiro Limited | Health & social care | 2010 |
| GFE Irimia Ltd | Health & social care | 2016 |
| Gfirs C.I.C. | Financial services | 2025 |
| Gfirs Intelligence Ventures Limited | Financial services | 2026 |
| GFM Rewards Ltd | Administrative & support | 2023 |
| GFX BR Ltd | Professional & scientific | 2025 |
| GFX GF Ltd | Professional & scientific | 2025 |
| GFX PR Ltd | Professional & scientific | 2025 |
| GFX ST Ltd | Professional & scientific | 2025 |
| GFX WR Ltd | Professional & scientific | 2025 |