| Global Management and Engineering Solutions Ltd | Professional & scientific | 2021 |
| Global Networks International Limited | Wholesale & retail | 2003 |
| Global Office Systems Limited | Wholesale & retail | 2021 |
| Global PC Cure Limited | Other services | 2017 |
| Global Shopping Lines Limited | Extraterritorial | 2024 |
| Global Supply Hub Limited | Wholesale & retail | 2024 |
| Global Unison Consulting Limited | Information & communication | 2005 |
| Global Worker BEE Limited | Administrative & support | 2018 |
| Globalinx Limited | Extraterritorial | 2009 |
| Globe Energy Developments Limited | Professional & scientific | 2025 |
| Globe Energy Ltd. | Professional & scientific | 1994 |
| Globe Energy Thermocharge Limited | Construction | 2023 |
| Glocal Geeks Ltd | Information & communication | 2024 |
| Gloomy Ltd | Wholesale & retail | 2025 |
| Glow Aesthet’Iqs Ltd | Other services | 2025 |
| Glsc Ltd | Construction | 2025 |
| GMS Global Limited | Other services | 2024 |
| Gmtech-Group Ltd | Information & communication | 2023 |
| GN Fast Ltd | Wholesale & retail | 2024 |
| Gncareservices Ltd | Health & social care | 2018 |
| Go Cars Gatwick Ltd | Transport & logistics | 2026 |
| Go Clean Services Ltd | Administrative & support | 2021 |
| Go Grabbit Ltd | Wholesale & retail | 2025 |
| Go PAT Ltd | Manufacturing | 2016 |
| Go Professional Ltd | Professional & scientific | 2010 |
| Go-Flow Ltd | Construction | 2024 |
| Go-Sparky.Co.Uk Limited | Wholesale & retail | 2018 |
| GOAN123 Limited | Hospitality | 2024 |
| Goat Outdoor Construction Ltd | Construction | 2025 |
| Goddysonnet Limited | Other services | 2016 |
| Goffs (Crawley) Management Company Limited | Households | 2010 |
| Goffs Park Road Management Limited | Real estate | 1979 |
| Gohar Consulting Limited | Professional & scientific | 2016 |
| Gohaulnetwork Ltd | Transport & logistics | 2025 |
| Going East Limited | Professional & scientific | 2007 |
| Gold 8 Cleaning Ltd | Administrative & support | 2021 |
| Gold Star Security Services Limited | Administrative & support | 2015 |
| Goldbuild Construction Ltd | Transport & logistics | 2023 |
| Golden Circle Finance Ltd | Financial services | 2019 |
| Golden City 54 Limited | Hospitality | 2016 |
| Golden Scissors Barber 3 Ltd | Other services | 2026 |
| Goldlink Trading Ltd | Professional & scientific | 2023 |
| Golf by JO Ltd | Wholesale & retail | 2025 |
| Goliath Consulting Ltd | Information & communication | 2024 |
| Golla Bros Ltd | Wholesale & retail | 2026 |
| Gondal Group Ltd | Wholesale & retail | 2026 |
| Gonzaclean Ltd | Administrative & support | 2026 |
| Good Character Productions Ltd | Information & communication | 2025 |
| Good Wills & Estate Planning Limited | Professional & scientific | 2015 |
| Good Wills Law Ltd | Professional & scientific | 2017 |
| Goodman Accounting Ltd | Professional & scientific | 2025 |
| Goodman Electrical Limited | Construction | 2002 |
| Goodman Solicitors Limited | Professional & scientific | 2026 |
| Goodnews Interiors Ltd | Construction | 2019 |
| Goodwill Solicitors Limited | Professional & scientific | 2015 |
| Gopi Impex Limited | Wholesale & retail | 2025 |
| Gopro Consultants Ltd | Information & communication | 2020 |
| Gordon Sammy's Ltd | Hospitality | 2025 |
| Gore Optics Ltd | Health & social care | 2014 |
| Gosport Street Management Limited | Households | 2024 |
| Gough Electrical Limited | Wholesale & retail | 2008 |
| Gourmet Dog Ltd | Wholesale & retail | 2018 |
| Gp&E Limited | Wholesale & retail | 2024 |
| GQC Solutions Ltd | Information & communication | 2024 |
| GR Property Partnership Ltd | Real estate | 2025 |
| Grace & Favour Healthcare Limited | Health & social care | 2013 |
| Grace Overseas Logistics Limited | Transport & logistics | 2017 |
| Gracious Distribution Ltd | Wholesale & retail | 2024 |
| Gran (Horsham) Ltd | Real estate | 2017 |
| Grand Enterprise PVT Ltd | Wholesale & retail | 2017 |
| Grand Perfum Ltd | Wholesale & retail | 2026 |
| Granet Ltd | Wholesale & retail | 2025 |
| Grants Gardens and Landscapes Ltd | Administrative & support | 2022 |
| Grassroots Hoops Ltd | Education | 2025 |
| Graves Jenkins (Crawley) Limited | Real estate | 1997 |
| Gravesend Dental Care Limited | Health & social care | 2011 |
| Graylands Farm Limited | Agriculture & fishing | 2010 |
| Graysmark Limited | Construction | 2005 |
| Grayston Central Services Limited | Professional & scientific | 1967 |
| Great Grace Services Ltd | Health & social care | 2021 |
| Great Old HAY Winery Limited | Agriculture & fishing | 2024 |
| Greaterthan Group UK Ltd | Information & communication | 2026 |
| Greek Gyros Afroviti Ltd | Hospitality | 2021 |
| Green Commodities Limited | Financial services | 2025 |
| Green Compliance Ltd | Information & communication | 2025 |
| Green Door Solutions Ltd | Construction | 2026 |
| Green Electricity Consultancy Limited | Professional & scientific | 2024 |
| Green Leaf Renovations Limited | Construction | 2025 |
| Green MAN Renewal Limited | Professional & scientific | 2004 |
| Green Technology Recruitment Limited | Information & communication | 2022 |
| Green-Villa Company Limited | Health & social care | 2018 |
| Greenaway Residential Limited | Real estate | 2012 |
| Greenbodytech Ltd | Transport & logistics | 2026 |
| Greenfar Gardening Ltd | Administrative & support | 2025 |
| Greenfield Storage Solutions Limited | Transport & logistics | 2023 |
| Greens Direct Ltd | Wholesale & retail | 2021 |
| Greenwire Electrical Ltd | Professional & scientific | 2024 |
| Gref Construction Limited | Construction | 2024 |
| Gregan Elite Builders Ltd | Construction | 2026 |
| Grey Matter AI Ltd | Information & communication | 2025 |