| GDB Imaging Ltd | Health & social care | 2024 |
| Gdpf Motion Studio Ltd | Information & communication | 2014 |
| GEL1 Ltd | Real estate | 2022 |
| Gell Estates Limited | Real estate | 2012 |
| Gemcall Ltd | Information & communication | 2018 |
| Gemstone Developments Limited | Real estate | 2012 |
| Gemstone Group Holdings Ltd | Real estate | 2019 |
| Gemstone Properties Limited | Real estate | 2002 |
| Genesis Jewellery Limited | Other services | 2024 |
| Genises Holding Ltd | Wholesale & retail | 2016 |
| Genjo Limited | Wholesale & retail | 2015 |
| Gentlemans Hair Club Limited | Manufacturing | 1998 |
| Geodata Engineering Limited | Construction | 2007 |
| GG Petro Ltd | Wholesale & retail | 2019 |
| GG Property (Essex) Ltd | Real estate | 2022 |
| GG Retail Ltd | Wholesale & retail | 2025 |
| Ghelectricalmaintenanceservices Ltd | Manufacturing | 2025 |
| Gibson Bennett Properties Ltd | Real estate | 2024 |
| Giftbrook Limited | Hospitality | 2020 |
| GIM Logistics Ltd | Transport & logistics | 2024 |
| Ginger KAT Ltd | Real estate | 2026 |
| Gleaming Green Cleaning Services Limited | Administrative & support | 2025 |
| Glendale Developments Limited | Construction | 2013 |
| Glitterball Productions Ltd | Arts & recreation | 2025 |
| GLO Edition Ltd | Real estate | 2025 |
| Global Learning Solutions Ltd | Education | 2022 |
| Global Media Partners Ltd | Professional & scientific | 2014 |
| Global Prunt Ltd | Information & communication | 2025 |
| Global Worth Limited | Manufacturing | 2024 |
| Globalex Solutions Ltd | Administrative & support | 2023 |
| Glorynova Limited | Hospitality | 2026 |
| God's Eased Venture Ltd | Health & social care | 2014 |
| God's Power Ministry International CIC | Education | 2025 |
| Golden Barbers 2 Ltd | Other services | 2026 |
| Golden Crust & Co Limited | Wholesale & retail | 2011 |
| Golden Mayfair Chinese Restaurant Limited | Hospitality | 2021 |
| Golden WOK House Limited | Hospitality | 2026 |
| Goldencurve Limited | Hospitality | 2018 |
| Golf on the Road Ltd | Wholesale & retail | 2023 |
| Good Origins Gastronomy Ltd | Hospitality | 2025 |
| GOOD2WOK Limited | Hospitality | 2019 |
| Gordon Services (UK) Ltd | Transport & logistics | 1995 |
| Gotek Construction Ltd | Construction | 2024 |
| Gourmet Delight Limited | Hospitality | 2026 |
| Grand Drive 2003 Limited | Households | 2003 |
| Grandeur House Limited | Real estate | 2018 |
| Grasmead Trading Ltd | Hospitality | 2019 |
| Grassed UP London Limited | Administrative & support | 2013 |
| Grasslands Group Ltd | Wholesale & retail | 2020 |
| Great Leap Forward Catering Limited | Hospitality | 2012 |
| Green Big Ltd | Public administration | 2023 |
| Greener Edge Support Ltd | Health & social care | 2018 |
| Greenfact Limited | Other services | 2021 |
| Greenhill Associates Limited | Real estate | 2015 |
| Greenleaf Investor Limited | Real estate | 2010 |
| Greenmix Limited | Hospitality | 2020 |
| Gregory Property Specialists Ltd | Professional & scientific | 2024 |
| Griffintech Consulting Ltd | Professional & scientific | 2020 |
| Grove Security Limited | Administrative & support | 2018 |
| Grovemore Limited | Real estate | 2018 |
| Growchi Limited | Health & social care | 2026 |
| Grrrl Zine Fair CIC | Information & communication | 2016 |
| GSD Solutions Ltd | Construction | 2023 |
| GTS Graphics & Print Ltd | Manufacturing | 2024 |
| Gulf Orient Chemicals Ltd | Administrative & support | 2011 |
| Gumzee Assets Ltd | Real estate | 2026 |
| Gumzee Estates Ltd | Real estate | 2025 |
| Gumzee Ltd | Real estate | 2024 |
| Gumzee Trading Ltd | Real estate | 2026 |
| Gunnery House Property Company Limited | Professional & scientific | 2011 |
| Guoandaug Ltd | Health & social care | 2016 |
| Gustin Construction Ltd | Construction | 2015 |
| Gwiri Ultimate Accessories Ltd | Wholesale & retail | 2025 |
| GWR Engineering Services Limited | Professional & scientific | 2018 |
| Gypsea Ltd | Wholesale & retail | 2011 |
| Gyros 25 Limited | Hospitality | 2025 |
| H & I Tamil Granny Ltd | Hospitality | 2024 |
| H'S Motor Repairs Ltd | Wholesale & retail | 2022 |
| Habib 1 Ltd | Other services | 2021 |
| Hadden Ltd | Professional & scientific | 2024 |
| Hadiullah Limited | Hospitality | 2025 |
| Hadleigh Futures Limited | Financial services | 2016 |
| Hafeez Bulders Limited | Construction | 2025 |
| Hagon and Holland Protection Ltd | Administrative & support | 2024 |
| HAI Properties Ltd | Real estate | 2022 |
| Hair Allure Ltd | Other services | 2026 |
| Hall Park IP Ltd | Professional & scientific | 2026 |
| Halo Network Technology Ltd | Information & communication | 2025 |
| Halpin Lettings Ltd | Real estate | 2023 |
| Hamilton Grange (Westcliff) Management Limited | Households | 2002 |
| Hamlet 2 Limited | Real estate | 2018 |
| Hamlet Court Ltd | Real estate | 2017 |
| Hamlet Court Management Company Limited | Households | 2022 |
| Hamlet on Sea Ltd | Real estate | 2023 |
| Hamlet Road Limited | Real estate | 2020 |
| Hamlet Store P Ltd | Wholesale & retail | 2025 |
| Hamlet SUB Limited | Real estate | 2022 |
| Hamony Healthcare Training Ltd | Hospitality | 2013 |
| Hampshire Fish and Chips Limited | Hospitality | 2026 |
| Hana Retkoceri Ltd | Administrative & support | 2023 |