| Gravesend Tyre Centre Ltd | Wholesale & retail | 2025 |
| Gravesham Excellence Cluster Ltd | Other services | 2011 |
| Gravesham Legend Sports Ltd | Arts & recreation | 2023 |
| Gravesham LET & Management Ltd | Construction | 2021 |
| Gravesham Network Development Community Interest Company | Health & social care | 2011 |
| Gravesham Pest Control Ltd | Administrative & support | 2023 |
| Gravesham Trophy Centre Limited | Wholesale & retail | 2010 |
| Gray Contracts Ltd | Construction | 2012 |
| Gray Edge Limited | Administrative & support | 2016 |
| GRD Properties Ltd | Real estate | 2018 |
| Great Concept Ventures Ltd | Administrative & support | 2020 |
| Great Diggs Foods Limited | Hospitality | 2021 |
| Great Ways Care Agency and Services Ltd | Administrative & support | 2025 |
| Green & Simon Ltd | Professional & scientific | 2006 |
| Green Collaboration Ltd | Professional & scientific | 2024 |
| Green Lofts Ltd | Construction | 2017 |
| Green P&E Ltd | Construction | 2022 |
| Green Park Renovations Ltd | Construction | 2017 |
| Green Shop Croydon Limited | Wholesale & retail | 2026 |
| Green Waste Care Limited | Water & waste | 2012 |
| Greenacre (Dartford) Residents Association Limited | Households | 1999 |
| Greener Pastures Ltd | Administrative & support | 2019 |
| Greenhithe Osteopaths Limited | Health & social care | 2017 |
| Greenmasters Properties Limited | Construction | 2019 |
| Greenplant Agro Solutions Limited | Wholesale & retail | 2025 |
| Greenway Farms Ltd | Professional & scientific | 2017 |
| Greg Security Limited | Administrative & support | 2017 |
| Gresham Properties Ltd | Real estate | 2022 |
| Grfc - Rugby Limited | Arts & recreation | 2016 |
| Grfc - Trading Limited | Arts & recreation | 2016 |
| Gridkapital Resources and Systems Limited | Construction | 2020 |
| Griller Chicken Limited | Other services | 2021 |
| Grills Inn Ltd | Hospitality | 2023 |
| Grit Constructions Limited | Construction | 2017 |
| GRM Mapping Limited | Information & communication | 2017 |
| Grosvenor Service Solutions Limited | Financial services | 2015 |
| Grove END Limited | Real estate | 2017 |
| Growback Ltd | Extraterritorial | 2024 |
| GRT Holdings Ltd | Real estate | 2024 |
| Grundieg Investment Limited | Professional & scientific | 2025 |
| Grwk Ltd | Construction | 2026 |
| GS Distributors Ltd | Wholesale & retail | 2023 |
| GS Electrical Solutions Ltd | Construction | 2021 |
| GSD Construction Limited | Construction | 2011 |
| GSD Paasla Ltd | Construction | 2019 |
| GSG Civil Engineering Ltd | Construction | 2024 |
| GSK Investment Group Limited | Real estate | 2025 |
| Gspk Properties Ltd | Real estate | 2015 |
| GSR Carpets and Flooring Limited | Wholesale & retail | 2019 |
| Gssk Hayer Properties Ltd | Real estate | 2024 |
| GTC Exterior Cleaning Ltd | Administrative & support | 2026 |
| Guard-N-Gel Ltd | Health & social care | 2024 |
| Guardians Cyber Security Ltd | Information & communication | 2026 |
| Gudend Strategies Limited | Information & communication | 2020 |
| Guiver Ltd | Construction | 2024 |
| Gulden Ltd | Transport & logistics | 2023 |
| Gulston Limited | Real estate | 2021 |
| Gummyvits Ltd | Wholesale & retail | 2024 |
| Gunning Electrical Ltd | Construction | 2025 |
| Guri Services Ltd | Construction | 2024 |
| Gurmat Parchar Ltd | Wholesale & retail | 2022 |
| Gurnaz Property Limited | Real estate | 2026 |
| Guru Journeys Ltd | Administrative & support | 2022 |
| Guru Solutions Ltd | Real estate | 2014 |
| Guruji's Empire (UK) Limited | Wholesale & retail | 2024 |
| Gutuman Trans Limited | Transport & logistics | 2016 |
| GVG Contracting Ltd | Construction | 2016 |
| GVG Transport Ltd | Water & waste | 2021 |
| Gwazai Limited | Health & social care | 2023 |
| GWH Controls Limited | Construction | 2025 |
| Gyap Staffing Ltd | Administrative & support | 2025 |
| Gymnastics for Schools Ltd | Arts & recreation | 2011 |
| Gynae Expert Limited | Health & social care | 2016 |
| Gyotrans Limited | Transport & logistics | 2022 |
| H & a Transport Services Ltd | Transport & logistics | 2018 |
| H & H Foods Ltd | Administrative & support | 2016 |
| H & H Kent Holdings Ltd | Wholesale & retail | 2016 |
| H a M a Security & Cleaning Services Ltd | Administrative & support | 2021 |
| H Chatha Transport Ltd | Transport & logistics | 2023 |
| H Line Limited | Construction | 2024 |
| H Reiss Property Holdings Ltd | Real estate | 2017 |
| H Reiss Property Investments Ltd | Real estate | 2010 |
| H S Spectrum Property Ltd | Real estate | 2025 |
| H.B BUS and Coach Ltd | Other services | 2017 |
| H.Bains Ltd | Transport & logistics | 2021 |
| H.C. Turk (Engineering Services) Limited | Manufacturing | 1981 |
| H.I.K.I.M Ltd | Administrative & support | 2023 |
| H.S.B.C. (UK) Limited | Construction | 2009 |
| H2O Lettings Ltd | Real estate | 2025 |
| H2O Seal Ltd | Construction | 2014 |
| HA-K9 Limited | Professional & scientific | 2007 |
| HA55 Construction Ltd | Construction | 2025 |
| Haastrups Ltd | Wholesale & retail | 2005 |
| Hadleigh Market Limited | Wholesale & retail | 2026 |
| Hadolf T. Ltd | Administrative & support | 2017 |
| Hair @ London Road Limited | Other services | 2019 |
| Hair at Morgan's Ltd | Other services | 2010 |
| Hair Gems London Ltd | Other services | 2024 |
| Hajweri Mart Ltd | Wholesale & retail | 2025 |
| Hak's Barber Ltd | Other services | 2020 |