| Gosling Street Ltd | Construction | 2019 |
| GOT Hustle Crewing Limited | Professional & scientific | 2023 |
| GOT Hustle Events Services Limited | Professional & scientific | 2024 |
| GOT Hustle Ltd | Professional & scientific | 2018 |
| Gourmet Sausage Maker Ltd | Manufacturing | 2026 |
| GPM Security Solutions Limited | Administrative & support | 2020 |
| Gra-Conn Services Ltd | Energy | 2021 |
| Grace Gilfeather Creative Ltd | Professional & scientific | 2020 |
| Grace's Day Nursery Limited | Education | 2010 |
| Grade a Property Services Ltd | Water & waste | 2020 |
| Gradic Care Supply Ltd | Health & social care | 2018 |
| Graftyset Limited | Wholesale & retail | 2003 |
| Grainstone LEE Holdings Limited | Financial services | 2017 |
| Grainstone LEE Limited | Administrative & support | 2013 |
| Grand Manor Holdings Limited | Financial services | 2025 |
| Grand Marquee Bickley Ltd | Other services | 2018 |
| Grant Terence Builders Ltd | Construction | 2025 |
| Grasshopper Property (Westerham) Ltd | Real estate | 2026 |
| Gravesend Roofing Ltd | Administrative & support | 2024 |
| Gravis FM Limited | Other services | 2025 |
| Gravitas Ventures Limited | Real estate | 2018 |
| Gray Bros. (Bermondsey) Limited | Water & waste | 1992 |
| Gray Green BIO Solutions Limited | Water & waste | 2017 |
| Gray's Waste Services Limited | Other services | 1982 |
| Great Circle Growth Limited | Extraterritorial | 2025 |
| Greatbrit TV Ltd | Information & communication | 2025 |
| Greater Than Gatsby (Bromley) Limited | Hospitality | 2015 |
| Greedy Foods Ltd | Wholesale & retail | 2019 |
| Green Again Ltd | Construction | 2017 |
| Green Apple Dental Recruitment Limited | Administrative & support | 2010 |
| Green BAG Ltd | Water & waste | 2025 |
| Green Carpet Ltd | Real estate | 2009 |
| Green City Builders Limited | Construction | 2024 |
| Green City Electrical Ltd | Construction | 2017 |
| Green Ductwork Services Ltd | Construction | 2019 |
| Green Family Properties Limited | Real estate | 2026 |
| Green Fish Limited | Transport & logistics | 2019 |
| Green Homes Real Estate Limited | Real estate | 2021 |
| Green Lane Goose Limited | Professional & scientific | 2017 |
| Green Lift Company Ltd | Manufacturing | 2009 |
| Green Schemes Limited | Administrative & support | 2018 |
| Green Writing and Editing Services Limited | Administrative & support | 2017 |
| Greenaway and Rigg Homes Ltd | Real estate | 2021 |
| Greenaway Tree Services Ltd | Administrative & support | 2024 |
| Greener Global Construction Ltd | Construction | 2016 |
| Greener Homes Insulation Limited | Construction | 2021 |
| Greenlands Properties Limited | Real estate | 2023 |
| Greenlight Ventures Limited | Professional & scientific | 2001 |
| Greenside Property Developments Ltd | Real estate | 2021 |
| Greensmith Infrastructure Ltd | Professional & scientific | 2018 |
| Greenwich & Bexley Community Care Limited | Health & social care | 2022 |
| Greenwich He&Or Limited | Administrative & support | 2013 |
| Greenwich Health Limited | Health & social care | 2016 |
| Greenwood Mobility and Maintenance Services Limited | Construction | 2012 |
| Greg Farmer Limited | Manufacturing | 2022 |
| Grey Chaise Properties Limited | Real estate | 2023 |
| Grey Revolution Ltd | Manufacturing | 2020 |
| Groomfellas Limited | Other services | 2016 |
| Groovestar Limited | Arts & recreation | 2019 |
| Grosvenor Flooring Ltd | Construction | 2021 |
| Grounded Catering Ltd | Hospitality | 2026 |
| Group 3 Limited | Wholesale & retail | 2024 |
| Grovepark Consultants Limited | Information & communication | 2000 |
| Growing Bexley CIC | Agriculture & fishing | 2026 |
| GRX Construct Limited | Construction | 2021 |
| GS Builders ( London) Ltd | Construction | 2025 |
| GSL Search Ltd | Administrative & support | 2019 |
| GTM Properties Limited | Construction | 2013 |
| Guaranteed Asphalt Holdings Limited | Administrative & support | 2014 |
| Guaranteed Rent Professionals Limited | Real estate | 2018 |
| Guaranteed Waterproofing Systems Ltd | Administrative & support | 2012 |
| Gurs Ductwork Services Limited | Construction | 2002 |
| GUT Guardians Limited | Manufacturing | 2018 |
| Guthrie Construction Services Ltd | Construction | 2025 |
| Gutix Ltd | Information & communication | 2015 |
| Guttering & Roofing Empire Limited | Construction | 2025 |
| GW Facilities Limited | Administrative & support | 2016 |
| Gwmk Consulting Limited | Administrative & support | 2016 |
| GX Builders Limited | Construction | 2025 |
| GXG Health & Fitness Limited | Other services | 2023 |
| Gymnastics Leotards Limited | Education | 2016 |
| H and B Construction and Taxis Limited | Transport & logistics | 2016 |
| H Lilley Ventures Limited | Financial services | 2025 |
| H Martin Limited | Administrative & support | 2010 |
| H O Caring Services Ltd | Health & social care | 2011 |
| H&H Double Nails Spa Ltd | Other services | 2021 |
| H. S. (Environmental) Ltd | Extraterritorial | 1994 |
| H. Williams & Company (Butchers) Limited | Real estate | 1955 |
| H.S. (Air Filtration) Limited | Extraterritorial | 2000 |
| H.S. (Water Hygiene) Limited | Construction | 2000 |
| Hadlaw Limited | Professional & scientific | 2025 |
| HAE Properties Ltd | Real estate | 2021 |
| Haigh Apartments 240 Limited | Real estate | 2024 |
| Hair by LIL Limited | Other services | 2026 |
| Hair HQ Ltd | Other services | 2024 |
| Hair Therapy Ltd | Other services | 2019 |
| HAK23 Ltd | Hospitality | 2023 |
| Hakawa Ltd | Wholesale & retail | 2024 |
| Halcrest Ltd | Wholesale & retail | 2022 |
| Haleslocks Limited | Construction | 2018 |