| Gift Box IT Ltd | Wholesale & retail | 2025 |
| Gifted Music Limited | Information & communication | 2017 |
| Giften International Ltd. | Wholesale & retail | 2016 |
| Gifting With Laura Ltd | Wholesale & retail | 2025 |
| GIL & Bricks Ltd | Professional & scientific | 2024 |
| Gilgal Investors Limited | Real estate | 2020 |
| Gill Nash Limited | Health & social care | 2025 |
| Gillian Gray Management Services Limited | Administrative & support | 2018 |
| Gillman Consulting Limited | Professional & scientific | 2014 |
| Gills Estate Heritage Limited | Real estate | 2025 |
| Giotech Limited | Information & communication | 2004 |
| Girdlestone Construction Ltd | Construction | 2020 |
| Girdlestone Limited | Construction | 2000 |
| Girls Allowed Essex Ltd | Arts & recreation | 2016 |
| Girls Allowed PT Hub Ltd | Arts & recreation | 2022 |
| Girls Allowed Studio Ltd | Arts & recreation | 2017 |
| Givi Limited | Information & communication | 2011 |
| GJB Electrical Services Limited | Construction | 2021 |
| GJR Mechanical Services Ltd | Construction | 2025 |
| GK Properties Group Ltd | Real estate | 2020 |
| GKC Properties Group Ltd | Real estate | 2020 |
| GLA Construction Ltd | Construction | 2020 |
| Glamour Art UK Ltd | Wholesale & retail | 2021 |
| Glarus & Chisel Ltd | Construction | 2019 |
| Glass Office Limited | Administrative & support | 2014 |
| Glawcal Limited | Professional & scientific | 2013 |
| GLB Roofing Specialists Ltd | Construction | 2021 |
| Gleeson Investments Limited | Financial services | 2025 |
| Glendale Lodge Residents Association Limited | Hospitality | 1984 |
| Glenn Gratton.Com Limited | Professional & scientific | 2018 |
| Glenn Hoddle Limited | Information & communication | 2014 |
| Glint Smile East Herts Limited | Health & social care | 2021 |
| Glintsmile Ltd | Health & social care | 2024 |
| Global Bankers Search and Selection Ltd | Administrative & support | 2012 |
| Global Brickwork Limited | Construction | 2008 |
| Global Communicators Limited | Administrative & support | 1999 |
| Global ISH Estates Ltd | Real estate | 2026 |
| Global Sufi Organization | Education | 2025 |
| Globaltrade Sales Ltd | Wholesale & retail | 2024 |
| Glossy Hair Limited | Wholesale & retail | 2025 |
| Glow Edit, Saltash Ltd | Other services | 2025 |
| GLS Textiles Ltd | Wholesale & retail | 2012 |
| Glyvorax Ltd | Wholesale & retail | 2025 |
| GM Business Consulting Ltd | Professional & scientific | 2024 |
| Gmfe Ltd | Real estate | 2023 |
| GMN Ventures Limited | Extraterritorial | 2002 |
| GMT Clinic Ltd | Health & social care | 2021 |
| Gnostic Limited | Construction | 2014 |
| Go Go Solutions Limited | Administrative & support | 2010 |
| Go Green Energy Limited | Other services | 2018 |
| Go Safe&Fast Delivery Ltd | Construction | 2021 |
| Go Voyager Limited | Administrative & support | 2013 |
| Goalspike Limited | Other services | 2021 |
| Godfrey and Lappage Services Ltd. | Energy | 1999 |
| Godfrey Lappage Group Limited | Energy | 2024 |
| Godlapp LLP | | 2017 |
| Goggi Ltd | Information & communication | 2023 |
| GOI HAI Ltd | Construction | 2023 |
| Golden Construction New Build Limited | Construction | 2021 |
| Golden EGG North Properties Ltd | Real estate | 2024 |
| Golden Triangle Dental Limited | Health & social care | 2017 |
| Golden Triangle Practice LLP | | 2006 |
| Goldstar Properties South West Ltd | Construction | 2021 |
| Golf Ride Limited | Wholesale & retail | 2025 |
| Golf Social Market Limited | Wholesale & retail | 2024 |
| Golfing With Nathan Limited | Manufacturing | 2023 |
| Gonocase Ltd | Administrative & support | 2024 |
| Good Luck Catering Supplies Limited | Wholesale & retail | 2005 |
| Good Vibes Entertainment Limited | Arts & recreation | 2019 |
| Goodall Holdings Group Limited | Administrative & support | 2025 |
| Goode Properties Ltd | Households | 2016 |
| Gooding Consultancy Limited | Professional & scientific | 2014 |
| Goodman Books Ltd | Extraterritorial | 2013 |
| Goodman Consultancy Ltd | Professional & scientific | 2013 |
| Goods Hub Kingdom Ltd | Wholesale & retail | 2025 |
| Gorsia Family Ltd | Real estate | 2024 |
| Gorsia Ltd | Professional & scientific | 2023 |
| Goshen PVT Ltd | Health & social care | 2022 |
| Gospodarul Limited | Wholesale & retail | 2021 |
| GOT the GIG Limited | Professional & scientific | 2018 |
| Gotech Services Ltd | Wholesale & retail | 2023 |
| Govact Ltd | Professional & scientific | 2023 |
| GP Insights Ltd | Information & communication | 2020 |
| GR Dark Signals Ltd | Construction | 2019 |
| Grace Home Property Ltd | Real estate | 2022 |
| Grace Leisure Limited | Hospitality | 2017 |
| Graceo Corp Ltd | Health & social care | 2021 |
| Gracious Films Limited | Manufacturing | 2010 |
| Gracious Pearly & Partners Limited | Wholesale & retail | 2022 |
| Gracious Projects Holdings Limited | Financial services | 2010 |
| Gracy's Farringdon Limited | Hospitality | 2026 |
| Graham Cruz Limited | Professional & scientific | 2022 |
| Graham Holman Physiotherapy Limited | Health & social care | 2009 |
| Grainid Ltd | Construction | 2022 |
| Grand Home Construction Ltd | Construction | 2025 |
| Granton Estates Limited | Households | 2010 |
| Gravesend Sweet Centre Ltd | Hospitality | 2020 |
| Gray Corporation Limited | Real estate | 2020 |
| GRC Search Limited | Administrative & support | 2013 |
| Great Dwelling's Ltd | Real estate | 2023 |