| Gillingham Showroom Ltd | Wholesale & retail | 2021 |
| Gillingham Social Club Ltd. | Hospitality | 2011 |
| Gillingham Sonemasonry Limited | Manufacturing | 2025 |
| Gillingham Supermarket Ltd | Wholesale & retail | 2020 |
| Gillingham Tandoori Ltd | Hospitality | 2015 |
| Gillingham Town Football Club | Arts & recreation | 2019 |
| Gillingham Town Youth Football Club Limited | Education | 2024 |
| Gillingham Travel Ltd | Administrative & support | 2003 |
| Gillingham Tunahan Ltd | Hospitality | 2025 |
| Gillingham Waterfront Ltd | Transport & logistics | 2021 |
| Gillingham Winter Sports Club Limited | Arts & recreation | 2011 |
| Gills Cabs Ltd | Transport & logistics | 2024 |
| Gillshed CIC | Other services | 2020 |
| Gizem 1 Ltd | Hospitality | 2026 |
| GK Flooring Solutions Ltd | Construction | 2019 |
| GK Wholesale Ltd | Wholesale & retail | 2026 |
| Gk-Tsd Group Limited | Real estate | 2025 |
| GKC Property Developments Ltd | Construction | 2021 |
| Gknc Building Services Ltd | Construction | 2022 |
| GL Strood Ltd | Wholesale & retail | 2014 |
| GL Wholesales Ltd | Wholesale & retail | 2024 |
| Glade Consulting Ltd | Professional & scientific | 2022 |
| Glaf Limited | Professional & scientific | 2011 |
| Glamcrafts Ltd | Wholesale & retail | 2013 |
| Glamour Import and Export Co., Ltd | Wholesale & retail | 2025 |
| Glasstec Industry Holding Co Ltd | Manufacturing | 2024 |
| Glasstone Healthcare Services Ltd | Administrative & support | 2024 |
| Glazion Ltd | Construction | 2025 |
| GLB Electrical Services Ltd | Extraterritorial | 2022 |
| GLC 2000 UK Ltd | Wholesale & retail | 2011 |
| Gleams Window Cleaning Ltd | Administrative & support | 2018 |
| Glenavon Lodge RTM Company Ltd | Households | 2020 |
| Glitter & Glue Ltd | Arts & recreation | 2025 |
| Global Admission (INT) Limited | Education | 2021 |
| Global Atlantic Sourcing Ltd | Professional & scientific | 2020 |
| Global Energy Resources International Holding Limited | Extraterritorial | 2016 |
| Global Essential Oils Ltd | Wholesale & retail | 2022 |
| Global Harvest Limited | Manufacturing | 2010 |
| Global Service Holding Ltd | Wholesale & retail | 2021 |
| Global Trade Aviation Ltd | Wholesale & retail | 2025 |
| Global Wiske Service Ltd | Manufacturing | 2024 |
| Globaltrace.Io Ltd | Information & communication | 2025 |
| Globeac Limited | Hospitality | 2017 |
| Glostep Ltd | Construction | 2020 |
| Glow Fibre Ltd | Information & communication | 2026 |
| Glow Move Ltd | Real estate | 2018 |
| Glow Within Aesthetics Ltd | Extraterritorial | 2023 |
| GLP Projects Ltd | Construction | 2019 |
| GLS Trade Group Co., Ltd | Wholesale & retail | 2023 |
| GLW 2001 Ltd | Other services | 2021 |
| GN4 Properties Ltd | Real estate | 2024 |
| Gnec Property Ltd | Real estate | 2024 |
| Go Carpet & Upholstery Cleaning Ltd | Administrative & support | 2023 |
| Go Parts Direct Limited | Wholesale & retail | 2012 |
| Go Parts Limited | Extraterritorial | 2012 |
| Godiome Global Ltd | Manufacturing | 2016 |
| Gods of Delivery Ltd | Transport & logistics | 2018 |
| Gold Coast Trading Co., Limited | Professional & scientific | 2018 |
| Gold Cross Services Ltd | Administrative & support | 2017 |
| Gold Faccts Limited | Real estate | 2026 |
| Gold Orchard Limited | Real estate | 2020 |
| Golden Dishes Ltd | Hospitality | 2021 |
| Golden Dragon Inn Ltd | Hospitality | 2025 |
| Golden Falls Catering Limited | Hospitality | 2008 |
| Golden Futures Network Community Interest Company | Professional & scientific | 2026 |
| Golden Glory International Group Co., Ltd | Manufacturing | 2023 |
| Golden Key Properties Medway Ltd | Real estate | 2025 |
| Goldiul Ltd | Transport & logistics | 2019 |
| Goldlink Ventures Limited | Transport & logistics | 2012 |
| Good Houseware Supply Ltd | Wholesale & retail | 2020 |
| Gooden’S Group Ltd | Administrative & support | 2026 |
| GOP Trading Company Ltd | Manufacturing | 2025 |
| Goraya's Enterprises Limited | Wholesale & retail | 2025 |
| GOS Cloud Solutions Limited | Information & communication | 2025 |
| Goshen Global Ltd | Wholesale & retail | 2019 |
| Gosney Ltd | Agriculture & fishing | 2002 |
| Gowci S Ltd | Hospitality | 2025 |
| Gowdycomputers Ltd | Wholesale & retail | 2025 |
| GP Knowles Utilities Ltd | Construction | 2024 |
| GP Northampton Ltd | Wholesale & retail | 2026 |
| GR Gadgets Ltd | Wholesale & retail | 2024 |
| Grab a Fixer Ltd | Construction | 2020 |
| Grabix Ltd | Wholesale & retail | 2025 |
| Gracefull View Ltd | Extraterritorial | 2017 |
| Gracia Properties Limited | Real estate | 2025 |
| Gracie Barra Gillingham Ltd | Wholesale & retail | 2021 |
| Gracie Care Ltd | Health & social care | 2024 |
| Gradon Limited | Administrative & support | 2004 |
| Graham Collins Decorators Limited | Construction | 2007 |
| Graham Johnson Building Services Ltd | Construction | 2009 |
| Gramar (UK) Limited | Wholesale & retail | 2024 |
| Granary Court (Rainham) Limited | Households | 2015 |
| Grand Court Freeholds Limited | Households | 1986 |
| Grand Sino Steel Co., Ltd | Extraterritorial | 2024 |
| Grandeur Steel PTY Ltd | Wholesale & retail | 2022 |
| Grandknoll Property Management Limited | Households | 2001 |
| Grange Height Limited | Wholesale & retail | 2010 |
| Grange Tandoori Ltd | Hospitality | 2023 |
| Grants Farm Limited | Real estate | 2010 |
| Grantseeker Ltd | Information & communication | 2026 |