| Glenthorn Property Ltd | Households | 2021 |
| Glide Gardeners Limited | Administrative & support | 2011 |
| Gligor Services Limited | Transport & logistics | 2017 |
| Global Actuarial Limited | Financial services | 2010 |
| Global Actuarial Services Limited | Financial services | 2008 |
| Global Classifieds Ltd | Professional & scientific | 2017 |
| Global Journal of Research Publications Ltd | Information & communication | 2024 |
| Globe Inc Ltd | Information & communication | 2019 |
| Gloria and Glosh Limited | Wholesale & retail | 2025 |
| Gloucester Road Residents Limited | Households | 1997 |
| GMH Planning Limited | Administrative & support | 2006 |
| Gmhide Holdings Ltd | Professional & scientific | 2014 |
| GMK Performance Ltd | Wholesale & retail | 2021 |
| Gmnc Limited | Construction | 2010 |
| GMS Aviation Group Ltd | Professional & scientific | 2020 |
| GMS Build Ltd | Construction | 2025 |
| Goddess of Divine Aesthetic Ltd | Wholesale & retail | 2018 |
| Godstone Road (Kenley) Management Company Limited | Households | 2003 |
| Godwin Consulting.Net Limited | Information & communication | 2006 |
| Golden Construction Architectural Ltd | Construction | 2016 |
| Goldfinch Recruitment Ltd | Construction | 2019 |
| Golf PAR Excellence Ltd | Administrative & support | 2008 |
| Gorocket Automation Ltd | Information & communication | 2024 |
| Gospel Assembly Church | Other services | 1997 |
| Gowell Health (London) Ltd | Health & social care | 2024 |
| Gowell Health Ltd | Health & social care | 2014 |
| GPL Projects Limited | Construction | 1996 |
| Grace Rogers Gardens Ltd | Construction | 2020 |
| Graesand Properties Limited | Real estate | 1990 |
| Graham Foote Construction Ltd | Construction | 2014 |
| Graham Rose Limited | Administrative & support | 2007 |
| Graham Saxby Photography Ltd | Professional & scientific | 2023 |
| Grald Property Services Limited | Professional & scientific | 2012 |
| Grand Slam Properties Limited | Construction | 2006 |
| Grants Vanilla Custard Limited | Manufacturing | 2014 |
| Graphters Limited | Wholesale & retail | 1985 |
| Grate Addition Ltd | Construction | 2018 |
| Great Wall Redhill Limited | Hospitality | 2020 |
| Green ANT Design Limited | Information & communication | 2008 |
| Green Butterfly Investments Ltd | Real estate | 2023 |
| Green Oak Tattoo Ltd | Arts & recreation | 2022 |
| Green Self Storage Worcester Limited | Professional & scientific | 1990 |
| Green Shop Redhill Ltd | Wholesale & retail | 2024 |
| GREEN7 Ltd | Information & communication | 2019 |
| Greencraft Arboriculture Ltd | Administrative & support | 2024 |
| Greenhaven Gardening Ltd | Administrative & support | 2021 |
| Greenland Digital Ltd | Information & communication | 2025 |
| Greenstone Management Development Limited | Professional & scientific | 2008 |
| Greenway & Associates Limited | Construction | 2012 |
| Greenway Homecare Limited | Health & social care | 2017 |
| Greenway Homecare Mole Valley Limited | Health & social care | 2020 |
| Greenwood Heating Limited | Construction | 2012 |
| Greenwood Media Ltd | Professional & scientific | 2011 |
| Greyface Property Ltd | Real estate | 2017 |
| Greyhound Motors Ltd | Wholesale & retail | 2024 |
| Gridwain Limited | Construction | 1977 |
| Grip Electric Limited | Construction | 2025 |
| Ground TEC International Limited | Other services | 1992 |
| GROUND2ROOF Construction Ltd | Construction | 2025 |
| Grprai Limited | Professional & scientific | 2023 |
| Gryphon Music Ltd | Other services | 2018 |
| GS Construction & Maintenance Ltd | Construction | 2025 |
| GS Electrical Contractors Limited | Construction | 2013 |
| GTC + GTC Limited | Construction | 2015 |
| Guka Group Ltd | Hospitality | 2023 |
| Gunay Properties Ltd | Real estate | 2025 |
| Gundry Properties Limited | Real estate | 2015 |
| Gunsport Limited | Wholesale & retail | 2018 |
| Gutterworks Group Limited | Financial services | 2025 |
| Gutterworks Limited | Wholesale & retail | 1996 |
| Gutterworks Supply Civils Ltd | Wholesale & retail | 2025 |
| Gutterworx Limited | Construction | 2006 |
| GVE Clothing Ltd | Wholesale & retail | 2015 |
| GW Decorators and Refurbishment Ltd | Construction | 2015 |
| Gyanbaa Consulting Services Limited | Information & communication | 2013 |
| H & T Consulting Ltd | Professional & scientific | 2024 |
| H&H Lawyers Limited | Professional & scientific | 2011 |
| H&J London Groups Limited | Transport & logistics | 2021 |
| Hair Divine Company Limited | Other services | 2015 |
| Halal Quality Control UK Ltd | Professional & scientific | 2024 |
| Hale Design Studio Limited | Construction | 2015 |
| Hale Mead Design and Build Limited | Construction | 2017 |
| Hale Oak Homes Limited | Construction | 2018 |
| Hallinwood Limited | Households | 1973 |
| Hamblin-Martin Financial Ltd | Financial services | 2015 |
| Hangar 9 Limited | Hospitality | 2024 |
| Hann Legacy Holdings Ltd | Real estate | 2025 |
| Happy Cheer Holidays Ltd | Administrative & support | 2020 |
| Happy Walks London Ltd | Other services | 2023 |
| Harben Properties Limited | Construction | 2011 |
| HARBOUR2STONE Properties LLP | | 2024 |
| Hardwick Properties Limited | Extraterritorial | 2012 |
| Harestone Developments Limited | Construction | 2022 |
| Harishan Ltd | Wholesale & retail | 2021 |
| Harley Systems Ltd | Information & communication | 2024 |
| Harpers Yard Lettings Limited | Real estate | 2024 |
| Harpers Yard Long-Let Ltd | Real estate | 2024 |
| Harpers Yard Serviced Apartments Limited | Real estate | 2024 |
| Hartscroft Management Limited | Households | 1974 |
| Hartswood Properties Limited | Real estate | 2022 |