| Global Drinks Intelligence Ltd | Information & communication | 2018 |
| Global Eyes Tax Services Limited | Professional & scientific | 2016 |
| Global Health Education Group Limited | Education | 2021 |
| Global Pesca Limited | Agriculture & fishing | 2013 |
| Globalog Consult Ltd | Professional & scientific | 2016 |
| Gloritone Limited | Real estate | 1976 |
| Glow Jewellers GB Limited | Wholesale & retail | 2011 |
| GNC Investments Limited | Real estate | 2018 |
| Go Savvy Limited | Professional & scientific | 2020 |
| Godminster Space Limited | Real estate | 2019 |
| Going Social Ltd | Professional & scientific | 2020 |
| Goldcrest Academy Limited | Administrative & support | 1995 |
| Golden Earth Trading Ltd | Manufacturing | 2024 |
| Goldhanger Films Ltd | Information & communication | 2014 |
| Goldring Holdings Limited | Financial services | 2021 |
| Goodesign Limited | Professional & scientific | 2005 |
| Gosded Farms Limited | Agriculture & fishing | 1977 |
| Gottsta Ltd | Professional & scientific | 2022 |
| GPW Building Contractors Ltd | Construction | 2023 |
| Graeme Black Limited | Arts & recreation | 2007 |
| Graff Ventures Limited | Professional & scientific | 2003 |
| Graham Fryer Associates Limited | Professional & scientific | 2002 |
| Grandcrown Limited | Wholesale & retail | 1991 |
| Grange Gardens Management Limited | Households | 1980 |
| Grant UP Limited | Professional & scientific | 2020 |
| Gray Digital Ltd | Professional & scientific | 2021 |
| Grayston Scaffolding Limited | Professional & scientific | 1948 |
| Great Hundiths Management Limited | Households | 2021 |
| Great Renovations Limited | Extraterritorial | 2014 |
| Great Solutions Consulting Limited | Professional & scientific | 2018 |
| Greatest Days Limited | Information & communication | 2020 |
| Greaves P.M. LLP | | 2012 |
| Greaves Project Management Limited | Professional & scientific | 2003 |
| Green Garden Group Ltd | Administrative & support | 2024 |
| Green Tech Electrical Solutions Ltd | Construction | 2022 |
| Greenacres (Lower Kingswood) Management Company Limited | Households | 2004 |
| Greenbird Investments Limited | Real estate | 1998 |
| Greenline Management Ltd | Water & waste | 2026 |
| Greenorbit Software Limited | Information & communication | 2018 |
| Greensand Project Consultants Limited | Professional & scientific | 2017 |
| Greensmore Landscapes Limited | Administrative & support | 2021 |
| Greenstone Design UK Ltd | Professional & scientific | 2009 |
| Greenway Homecare Dorking Ltd | Health & social care | 2024 |
| Greenway Surrey Limited | Health & social care | 2023 |
| Greenwich Union Limited | Real estate | 2008 |
| Greenwood Flats (Freeholders) Limited | Households | 1997 |
| Greenwood Flats Management (Burstow) Limited | Households | 1976 |
| Grenehurst Park Residents Company Limited | Households | 1990 |
| Gresham Court Farnborough (Management Company) Limited | Real estate | 1993 |
| Gresham Gardens Ltd | Households | 2020 |
| Grid London Ltd | Professional & scientific | 2012 |
| Groundscapes Limited | Other services | 1997 |
| Grove Avenue Limited | Households | 1997 |
| Grove Ecology Limited | Professional & scientific | 2015 |
| Grovedale Consulting Limited | Professional & scientific | 2014 |
| Growing Landscapes Limited | Other services | 2016 |
| Grundy Consulting Ltd | Information & communication | 2021 |
| GS Valley Ltd | Real estate | 2026 |
| Guild Living Limited | Financial services | 2018 |
| Gweme Ltd | Construction | 2026 |
| H & C Electrical Services Limited | Construction | 2017 |
| H & S Tunbridge Wells Limited | Wholesale & retail | 2010 |
| H&R House Ltd | Real estate | 2019 |
| H.L.E.Fresh Holdings Ltd | Wholesale & retail | 2024 |
| H.W. Wallace & Co Limited | Manufacturing | 2016 |
| H.W.Gaymer Limited | Wholesale & retail | 1957 |
| Haigh Consulting Engineers Limited | Professional & scientific | 2012 |
| Hairro Limited | Other services | 2025 |
| Hakika Limited | Professional & scientific | 2004 |
| Hallowdown Ltd | Wholesale & retail | 1996 |
| Halo Aesthetics & Beauty Ltd | Other services | 2022 |
| Halo Aesthetics Training Ltd | Professional & scientific | 2022 |
| Halo Construction Solutions Limited | Construction | 2017 |
| Hamilton Landscaping Ltd | Construction | 2026 |
| Hammerfield Consulting Ltd | Professional & scientific | 2011 |
| Hammond Partners LLP | | 2006 |
| Hammond Partners Search Services Limited | Administrative & support | 2003 |
| Hancock & Sell Limited | Manufacturing | 1962 |
| Hannah Kelly Hair Education Ltd | Education | 2023 |
| Hannah Kelly Hair Ltd | Other services | 2023 |
| Hannah Kelly Hair Salon Ltd | Other services | 2023 |
| Hansal International Limited | Professional & scientific | 2012 |
| Hanwall Property Ltd | Construction | 2025 |
| Haphazard Films Ltd | Arts & recreation | 2014 |
| Happy Healthy Hounds Ltd | Professional & scientific | 2024 |
| Harbord & Co Limited | Professional & scientific | 2013 |
| Harbourview Logistics Limited | Transport & logistics | 2025 |
| Harbut & Friday Ltd | Hospitality | 2023 |
| Hardelle Associates Limited | Health & social care | 2026 |
| Hargreaves & Jones Limited | Financial services | 2007 |
| Harmony Fine Art Ltd | Wholesale & retail | 2020 |
| Harris Mccutcheon Limited | Professional & scientific | 2001 |
| Harrison MAY Personal Training Limited | Arts & recreation | 2015 |
| Harrow Croft - Northern Block Ltd | Households | 2020 |
| Harry G Designs Limited | Professional & scientific | 2016 |
| Harryedmand Ltd Ltd | Health & social care | 2021 |
| Hart Scales Investments Ltd | Real estate | 2013 |
| Harting Down Management Limited | Administrative & support | 2020 |
| Harts at the Courtyard Limited | Manufacturing | 2023 |
| Haslemere Digital Ltd | Professional & scientific | 2022 |