| Gemirus Associates Ltd | Professional & scientific | 2024 |
| Gemm Contracts Ltd | Construction | 2023 |
| Gemmeg Consulting Ltd | Professional & scientific | 2021 |
| Gentry Media Ltd | Professional & scientific | 2020 |
| GEO & Joy Ltd | Extraterritorial | 2020 |
| Geologic Foundations Limited | Construction | 2008 |
| George Edward Performance Car Sales Ltd | Wholesale & retail | 2025 |
| George Healthcare Limited | Health & social care | 2011 |
| George-Williams Consultancy Ltd | Professional & scientific | 2022 |
| George-Williams Properties Ltd | Real estate | 2023 |
| George’S Tree Company Ltd | Agriculture & fishing | 2023 |
| Gerbil Production Ltd | Professional & scientific | 2018 |
| German Car Specialist Engineering Limited | Wholesale & retail | 2002 |
| German Transport Limited | Transport & logistics | 1969 |
| Gesc Refurb Limited | Administrative & support | 2006 |
| GET a Peptalk Limited | Other services | 2020 |
| GHA Trees Ltd | Agriculture & fishing | 2019 |
| Gheo Properties Limited | Real estate | 2020 |
| Ghost Marketing Management Ltd | Professional & scientific | 2016 |
| Giagathos Ltd | Other services | 2019 |
| Gibbs Property Company Limited | Real estate | 2022 |
| Gibson and Bruce Limited | Wholesale & retail | 2017 |
| Gigafast Ltd | Information & communication | 2022 |
| Gigi Sleeps Limited | Hospitality | 2021 |
| GIL Martinez Services Limited | Health & social care | 2026 |
| Gilbert Wealth Limited | Financial services | 2005 |
| Gildenhurst Holdings Ltd | Financial services | 2024 |
| Gillchemy Global Consulting Ltd | Professional & scientific | 2024 |
| Giltinan and Kennedy LLP | | 2009 |
| Gimme PR Ltd | Professional & scientific | 2025 |
| Ginger MOO Limited | Other services | 2006 |
| Gingerbread Heritage Limited | Professional & scientific | 2022 |
| Girodilento Limited | Professional & scientific | 2023 |
| Giving Insight Limited | Administrative & support | 2012 |
| Gjpb Limited | Professional & scientific | 2021 |
| GK Richards Properties Limited | Construction | 2013 |
| Gkem IT Solutions Limited | Information & communication | 2019 |
| GKM Business Finance Limited | Financial services | 2024 |
| GKS Solutions Ltd | Professional & scientific | 2023 |
| GL Associates (Sussex) Limited | Professional & scientific | 2021 |
| Gladdish Properties Ltd | Real estate | 2021 |
| Glade Compliance Ltd | Administrative & support | 2020 |
| Glampmobile Limited | Administrative & support | 2024 |
| Glazefine Limited | Households | 1995 |
| Glebe House Farm Ltd | Agriculture & fishing | 2019 |
| Glemoh Limited | Hospitality | 2016 |
| Glenmill Partners Limited | Professional & scientific | 2002 |
| Glenorchy Consulting Limited | Professional & scientific | 2020 |
| Glenstriven Estate LLP | | 2009 |
| Glenzier Sporting Limited | Other services | 2011 |
| Glide Collective Ltd | Financial services | 2024 |
| Global 4 Communications Limited | Information & communication | 1998 |
| Global 4 Limited | Information & communication | 2025 |
| Global EYE Trials Ltd | Professional & scientific | 2015 |
| Global Furnishings Ltd | Wholesale & retail | 2015 |
| Global Promotional Events Limited | Hospitality | 2012 |
| Global QMS Ltd | Professional & scientific | 2023 |
| Global Salmon Initiative Limited | Agriculture & fishing | 2020 |
| Global Spirit Services Ltd | Wholesale & retail | 2025 |
| Global Technical Solutions (Property Masterplanners) Limited | Construction | 2015 |
| GLOBAL76 Ltd | Professional & scientific | 2021 |
| Globe-Smart Limited | Information & communication | 2008 |
| Glory Company UN Limited | Arts & recreation | 2019 |
| Glowe Fitness Ltd | Arts & recreation | 2026 |
| Glynis Rogers Consultancy Limited | Professional & scientific | 2016 |
| GM Horsham Tyres Ltd | Wholesale & retail | 2023 |
| Gmaco Limited | Real estate | 2023 |
| Gmaco.Ai Limited | Information & communication | 2023 |
| Gmbsc Ltd | Professional & scientific | 2020 |
| GMM Technical Solutions Ltd | Construction | 2024 |
| Go Projects Limited | Construction | 2020 |
| Go-Go-Golf Limited | Arts & recreation | 2005 |
| Go-Snag (South East) Ltd | Construction | 2007 |
| Go-Unity Ltd | Administrative & support | 2014 |
| Goal IS Netzero Ltd | Information & communication | 2022 |
| Gobsmack Comics Ltd | Wholesale & retail | 2014 |
| Goddard`S Pies Limited | Manufacturing | 2008 |
| Golden Brick Holdings Ltd | Financial services | 2021 |
| Golden Brick Property Construction Ltd | Construction | 2021 |
| Golden Brick Property Solutions 2 Ltd | Real estate | 2021 |
| Golden Brick Property Solutions Ltd | Real estate | 2020 |
| Golden Leaves Scrap Metal Ltd | Water & waste | 2025 |
| Golden Scissors Horsham Ltd | Other services | 2020 |
| Goldfinch Products Ltd | Wholesale & retail | 2020 |
| Golfantasia Limited | Arts & recreation | 2003 |
| Good Training Practice International Limited | Information & communication | 2001 |
| Goode Travel Ltd | Wholesale & retail | 2023 |
| Goodfellow Mechanical Services Ltd | Construction | 2014 |
| Goodfellow Plasterers Ltd | Construction | 2011 |
| Goodwil Lettings Ltd | Real estate | 2026 |
| Goodwin Publications Limited | Information & communication | 2013 |
| Gopher & Gopher Limited | Real estate | 2000 |
| Gopnik Limited | Professional & scientific | 2021 |
| Gordita Things Limited | Administrative & support | 2016 |
| Gorilla Brands IP Ltd | Financial services | 2025 |
| Gorilla Trading Ltd | Wholesale & retail | 2025 |
| Gozo Future Investments Limited | Financial services | 2010 |
| GP Aircraft Services Ltd | Manufacturing | 2026 |
| Grace MAY Ltd | Administrative & support | 2015 |
| Graceway Films Limited | Information & communication | 2015 |