| Global Business Roundtable UK Foundation | Administrative & support | 2018 |
| Global Fund for Jesus | Hospitality | 2019 |
| Global Tech Systems Ltd | Information & communication | 2024 |
| Global Telemetrics Limited | Wholesale & retail | 2009 |
| Global Village Estates Ltd | Real estate | 2024 |
| Global Village Productions Ltd | Information & communication | 2023 |
| Global Village Publishers Ltd | Information & communication | 2024 |
| Glorious Autos Ltd | Manufacturing | 2023 |
| Glovers Covers Ltd | Other services | 2021 |
| Gmdb Limited | Financial services | 2020 |
| GNJ Fleetcare Ltd | Wholesale & retail | 2024 |
| Go Local Coalville Ltd | Wholesale & retail | 2026 |
| Go Scrub Ltd | Transport & logistics | 2026 |
| Go-N-Do IT Pathlab Training Academy Ltd | Administrative & support | 2023 |
| Golden Prize Competitions Ltd | Arts & recreation | 2020 |
| Golden Resin Ltd | Construction | 2025 |
| Goldsmith Business Services Ltd | Professional & scientific | 2025 |
| Golfingpartner.Com Ltd | Arts & recreation | 2004 |
| Goodwin Barsby Limited | Extraterritorial | 2005 |
| GP Craftworks Limited | Administrative & support | 2016 |
| GP Technology Limited | Administrative & support | 2006 |
| GPR Property Developments Ltd | Real estate | 2025 |
| Gpsupport Ltd | Administrative & support | 2019 |
| Grabfresh Foods Ltd | Wholesale & retail | 2026 |
| Grace Dieu Priory Trust | Arts & recreation | 1996 |
| Grace Dieu Roofing and Carpentry Ltd | Construction | 2021 |
| Gracedieu Ltd | Wholesale & retail | 2022 |
| Graceful Holdings Limited | Real estate | 2021 |
| Gracey Stores Limited | Wholesale & retail | 2023 |
| Grade Packaging Limited | Professional & scientific | 2006 |
| Grade Products Limited | Manufacturing | 1980 |
| Grange 2025 Limited | Health & social care | 2025 |
| Graphic Draughting Limited | Professional & scientific | 1995 |
| Gravitas Safety Training Limited | Public administration | 2019 |
| Graylin Pubs Ltd | Administrative & support | 2019 |
| GRC Ankev Ltd | Transport & logistics | 2025 |
| Green Goblin Garage Ltd | Manufacturing | 2021 |
| Green Life Innovations CIC | Agriculture & fishing | 2022 |
| Greenhill Fryer Pizza Ltd | Hospitality | 2026 |
| Greenlife Souvenirs Ltd | Wholesale & retail | 2021 |
| Gresley Rails Ltd | Wholesale & retail | 2024 |
| Grey Group Holdings Limited | Financial services | 2024 |
| Greygate Chemical Products Limited | Manufacturing | 1969 |
| Greystokes Property Ltd | Real estate | 2018 |
| Grid Triip Ltd | Construction | 2025 |
| Grill C Ltd | Hospitality | 2025 |
| Growing Horizons Limited | Wholesale & retail | 2010 |
| GS Valeting Ltd | Other services | 2016 |
| GTE Inns Limited | Hospitality | 2023 |
| Guardians Recovery Ltd | Transport & logistics | 2022 |
| Guardians Roadside Recovery Ltd | Transport & logistics | 2025 |
| Gunbarrel Creek Limited | Arts & recreation | 2022 |
| Gursimar Haulage Ltd | Transport & logistics | 2025 |
| Gweedore Property Company Unlimited | Financial services | 2017 |
| H & a Wardrobes Limited | Construction | 2016 |
| H & C (Worthing) Limited | Real estate | 1959 |
| H & N Accounting Limited | Financial services | 2026 |
| H & T Jewellery Ltd | Manufacturing | 2022 |
| H. Sivyer Transport Limited | Water & waste | 1978 |
| H.& C.(Developments)Limited | Real estate | 1958 |
| H.Seal & Co.,Limited | Manufacturing | 1920 |
| H.Seal (Holdings) Limited | Financial services | 2021 |
| H.T.S Courier Limited | Transport & logistics | 2025 |
| Habit Factory Limited | Wholesale & retail | 2023 |
| Hadron Group Limited | Manufacturing | 2020 |
| Hair Professional Supplies Limited | Wholesale & retail | 2026 |
| Haissel Ltd | Information & communication | 2024 |
| Hall Farm Developments Ltd | Construction | 2017 |
| Hall Stanyard Limited | Professional & scientific | 2021 |
| Hall's Brewery Limited | Manufacturing | 2023 |
| Halls Electrics Limited | Construction | 2015 |
| Hallwood Homes Ltd | Construction | 2019 |
| Hanlumat Services Limited | Information & communication | 2011 |
| Hannah's Room Ltd | Wholesale & retail | 2016 |
| Hannah's Room Retreats Ltd | Arts & recreation | 2024 |
| Hardbattles Limited | Professional & scientific | 2014 |
| Harding Grant Asset Ltd | Real estate | 2019 |
| Harding Grant Ltd | Professional & scientific | 2018 |
| Hardings Transport Limited | Transport & logistics | 1989 |
| Hardingstone Property LLP | | 2009 |
| Harington Student Ltd | Real estate | 1995 |
| Harris Education Limited | Education | 2006 |
| Harrison Therapy Services Ltd | Health & social care | 2023 |
| Harrisons Spice Buffet Ltd | Hospitality | 2025 |
| Harrow View LLP | | 2017 |
| Hart Commercial Management Ltd | Construction | 2019 |
| Having a Larp Ltd | Wholesale & retail | 2025 |
| Hayes Village Energy Centre Management Company Limited | Households | 2020 |
| Hayes Village Residents’ Management Company Limited | Households | 2020 |
| Hazelmere Management Company Limited | Households | 1979 |
| Hcac Properties Ltd | Construction | 2023 |
| HCP Electrical Ltd | Construction | 2024 |
| HDP Event Medical Services Ltd | Real estate | 2014 |
| HDP Medical Services Ltd | Education | 2016 |
| HDP Medical Supplies Ltd | Wholesale & retail | 2016 |
| Headforce Holdings Ltd | Information & communication | 2026 |
| Heads and Tails Jewellery Ltd | Manufacturing | 2024 |
| Health Safety Sustainability Ltd | Health & social care | 2026 |
| Heat Pump Accessories Ltd | Wholesale & retail | 2024 |
| Heather & Stone Properties Ltd | Real estate | 2025 |