| Goldfinch Capital Ltd | Information & communication | 2022 |
| Goldfinch Holdings & Investments Ltd | Financial services | 2024 |
| Goldfinch Trade Services Ltd | Construction | 2024 |
| Goldstrand Limited | Real estate | 2013 |
| Goldteam Limited | Health & social care | 2012 |
| Gonzalez Fitness Limited | Arts & recreation | 2022 |
| Good Change People Ltd | Information & communication | 2023 |
| Good Health Ltd | Real estate | 2025 |
| Goodlist P&P Ltd | Information & communication | 2021 |
| GOP Restaurants Limited | Hospitality | 2021 |
| Gorilla IT Ltd | Information & communication | 2014 |
| Gosfield Close Limited | Administrative & support | 2013 |
| Gosfield Holdings Limited | Financial services | 2020 |
| GOT Salema Limited | Real estate | 2015 |
| Gottdog Limited | Wholesale & retail | 2020 |
| Govey Homes Limited | Construction | 2021 |
| Gowlain Builders & Contractors Limited | Construction | 1975 |
| Gowlain Building Group Contractors Limited | Construction | 1988 |
| Gowrie Retail Ltd | Health & social care | 2015 |
| GPFM247 Ltd | Real estate | 2022 |
| GPK IT Associates Limited | Information & communication | 2017 |
| Gracie Governance Solutions Ltd | Administrative & support | 2026 |
| Graemedia Ltd. | Transport & logistics | 2001 |
| Graham Salter Plumbing and Heating Limited | Construction | 2017 |
| Grand CAY Island Ltd | Real estate | 2019 |
| Grand Designs Paving and Landscaping Ltd | Other services | 2021 |
| Grandma, Food and Fine Art Ltd | Hospitality | 2024 |
| Grange Service Station Limited | Wholesale & retail | 2002 |
| Grange Technologies Limited | Manufacturing | 2023 |
| Granita Films Ltd | Information & communication | 2005 |
| Granite Supply UK Ltd | Wholesale & retail | 2011 |
| Grantham Lodge Limited | Professional & scientific | 2005 |
| Grantock Limited | Other services | 1998 |
| Grantr Esports Limited | Professional & scientific | 2022 |
| Gray ASH 24 Limited | Construction | 2025 |
| Gray-Lex Ltd | Construction | 2024 |
| GRB Building & Carpentry Ltd | Construction | 2022 |
| Great Rent Hove Limited | Real estate | 2022 |
| Great Scott Production Services Limited | Information & communication | 2022 |
| Green Arbour Capital Ltd. | Wholesale & retail | 2020 |
| Green Auto Parts Limited | Administrative & support | 2022 |
| Green Ball Diagnostics Limited | Information & communication | 2016 |
| Green D.C. Project Management Limited | Information & communication | 2023 |
| Green Edge Agency Ltd | Information & communication | 2023 |
| Green Habitat Properties Ltd | Real estate | 2019 |
| Green Lantern Group Limited | Administrative & support | 2020 |
| Green MAN Packaging Limited | Wholesale & retail | 2005 |
| Green Rock Aggregates Limited | Water & waste | 2020 |
| Green Safe Limited | Information & communication | 2022 |
| Green Square Mile Limited | Other services | 2011 |
| Greenbay Technical Services Limited | Professional & scientific | 2009 |
| Greenbridge Services Limited | Construction | 2015 |
| Greencourt Home Management Limited | Administrative & support | 2016 |
| Greenfingers Arboriculturalists Limited | Administrative & support | 2005 |
| Greenlight Office Solutions Ltd | Wholesale & retail | 2015 |
| Greenogue Properties Limited | Real estate | 2025 |
| Greens Health Foods Ltd | Wholesale & retail | 2024 |
| Greenstone Landscapes Limited | Professional & scientific | 2013 |
| Greenwich Green Cafe Ltd | Hospitality | 2017 |
| Greenwish Group Ltd | Professional & scientific | 2019 |
| Greetings (Leigh) Limited | Wholesale & retail | 2025 |
| Gregem Limited | Financial services | 2026 |
| Gregory Dean Limited | Other services | 2011 |
| Gregory Dean Property Limited | Real estate | 2017 |
| Grey Salt Limited | Other services | 2017 |
| Grey Sea Finance Limited | Financial services | 2023 |
| Gridfit Ltd | Construction | 2021 |
| Gridstar Limited | Hospitality | 2025 |
| Grig's Barber Shop Ltd | Other services | 2018 |
| Grigi Construction Ltd | Construction | 2024 |
| Grips Ltd | Wholesale & retail | 2007 |
| Grisette Holdings Limited | Financial services | 2010 |
| Grosvenor Renovations Limited | Construction | 2010 |
| Ground Coffee House Ltd | Hospitality | 2019 |
| Groundedbodyscrub Limited | Wholesale & retail | 2015 |
| Groundforce Developments Ltd | Construction | 2019 |
| Grove Green Capital Ltd | Financial services | 2025 |
| Grow My Books Limited | Professional & scientific | 2018 |
| Grow Protect Exit Ltd | Professional & scientific | 2024 |
| Grow Together Trading Ltd. | Financial services | 2013 |
| GS Clothing Limited | Wholesale & retail | 2025 |
| GS GAS and Heating Ltd | Construction | 2017 |
| GT Coach Limited | Information & communication | 2026 |
| GT Hospitality Limited | Hospitality | 2023 |
| GTG Clean Ltd | Administrative & support | 2024 |
| Gtopleybuilding Limited | Construction | 2025 |
| Guardian Car Systems Limited | Administrative & support | 1998 |
| Guardian Display Limited | Manufacturing | 2009 |
| Guardian Doors Holdings Ltd | Financial services | 2024 |
| Guidewaves Ltd | Education | 2025 |
| Guinea Florin Limited | Other services | 1998 |
| Gumscription Ltd | Wholesale & retail | 2026 |
| Gurdeep Singh Sound Limited | Information & communication | 2022 |
| Gusti Italiani Ltd | Hospitality | 2024 |
| Guts Enterprises Limited | Financial services | 2018 |
| Gvpmc Limited | Information & communication | 2021 |
| GW Basements Limited | Construction | 2010 |
| GW Property Construction Limited | Construction | 2021 |
| Gwen's Cycle Coaching LLP | | 2016 |
| Gym-Life Nutrition Ltd | Hospitality | 2018 |