| German Potash Group Chemical Co., Ltd | West Midlands, England | 2025 |
| German Spry International Chemical Co., Ltd | Cardiff | 2023 |
| Germany Aibilu Crop Technology Co., Ltd | Cardiff | 2025 |
| Germany Auvief Group Special Fertilizer Co., Ltd | Cardiff | 2023 |
| Germany Bavus AG Ltd | Cambridge | 2025 |
| Germany Bodenwal Chemical Group Ltd | Cambridge | 2024 |
| Germany Chemieindustrie Mannheim Co., Ltd | Cambridge | 2025 |
| Germany Chemplanvo International Chemical Co., Ltd | Coventry | 2026 |
| Germany Donbe Chemical International Stock Co., Ltd | Cambridge | 2024 |
| Germany DR. NUO Ecological Agriculture Co., Ltd | Cambridge | 2025 |
| Germany Eco-Agriculture International Group Co., Ltd | Cambridge | 2026 |
| Germany Gamisch Chemical Group Co., Ltd | Beckenham | 2024 |
| Germany Gaouss Chemicals Ltd | London | 2025 |
| Germany Gold Gerpusi Crop Nutrition Ltd | Cardiff | 2026 |
| Germany Hasely Potash Industry Group Co., Limited | Beckenham | 2025 |
| Germany Jingtaikang International Fertilizer Co., Ltd | London | 2025 |
| Germany Kangsente Chemical Engineering Ltd | Beckenham | 2021 |
| Germany Manson Biochemical Limited | Beckenham | 2024 |
| Germany Meisaidesi International Chemical Group Co., Ltd | Cambridge | 2025 |
| Germany Neopland Chemical Group Co., Ltd | Cambridge | 2024 |
| Germany Nosk Agrochemical Group Co. Ltd | Cambridge | 2025 |
| Germany Opus Biology Technology (China) Limited | Beckenham | 2022 |
| Germany Oribo Special Fertilizer Co., Ltd | Cardiff | 2023 |
| Germany Potash Chemical Group Co., Ltd | Coventry | 2025 |
| Germany Sanom Special Fertilizer Co., Ltd | Cambridge | 2026 |
| Germany Shilefu Kalium Salt International Ltd | Cambridge | 2021 |
| Germany Shima Hongfu Chemical Group Co., Ltd | Manchester | 2023 |
| Germany Vigro Chemical Group Co., Ltd | West Midlands | 2023 |
| Germany VON Liebig Chemical Industry Group Co., Limited | Beckenham | 2025 |
| Germany Zhinuo Chemical Group International Ltd | Beckenham | 2023 |
| Geroro Consulting Limited | Brentford | 2018 |
| Gerosa OIL Services Company Ltd | Egham | 2018 |
| GES Consultants Limited | Norwich | 2011 |
| Geschwender Interiors Limited | Aberdeen | 2003 |
| Getech Group PLC | Leeds | 1994 |
| Getech Hydrogen Limited | Leeds | 2023 |
| Getech Minerals Limited | Leeds | 2023 |
| GFF Capital Ltd | London | 2016 |
| GFM Consulting Limited | Glasgow | 2018 |
| GFX Offshore Limited | Lowestoft | 2015 |
| Ggoff Engineering Ltd | Dundee | 2019 |
| GGT Holdco Ltd | Leeds | 2025 |
| Giais Ltd | Potters Bar | 2002 |
| Giant Africa Ventures Limited | Bournemouth | 2024 |
| Gibb Brothers Abnormal Load Services Limited | Larkhall | 2023 |
| Gibson Bros Limited | Banbridge | 1986 |
| Gibson Quarries (Banbridge) Limited | Banbridge | 1978 |
| Gilder ROV Limited | Stamford | 2017 |
| Gilfeather Holdings Ltd | Ardersier | 2025 |
| Gill Quarries Ltd | Londonderry | 2018 |
| Gill Training Services Limited | Dundee | 2010 |
| Gillette Minerals Ltd | Cheltenham | 2026 |
| Gilmour Drilling International Limited | London | 2023 |
| Gilroy HSE Ltd | Dunkeld | 2018 |
| Gingeology Ltd | Colchester | 2012 |
| GIO Energy Limited | Edinburgh | 2017 |
| Girling & Company Limited | Diss | 2010 |
| GIS (UK) Limited | London | 2014 |
| GJB Engineering & Design Limited | Cullompton | 1979 |
| GJP Fabrications & Installations Limited | Stoke-On-Trent | 2008 |
| GJS Access & Inspection Ltd | Hartlepool | 2026 |
| GJS Technical Services Ltd | Aberdeen | 2005 |
| GK Ecosse Ltd | Arbroath | 2019 |
| GK Mining and Tunnelling Services Limited | Durham | 2025 |
| GL Subsea & Engineering Limited | Aberdeen | 2017 |
| Glamorgan Power Company Limited | Bargoed | 1993 |
| Glasmin Resources (UK) Limited | Kilmacolm | 2011 |
| Glasper Tunstall Stone Masonry Limited | Durham | 2006 |
| GLC Gaming Solutions Ltd. | London | 2022 |
| GLD Technical Services Limited | Retford | 2014 |
| Glebe Stone Sales Limited | Newark | 2003 |
| Glebefield Instruments Limited | Peterhead | 2015 |
| Glen Anthracite Distribution Limited | Swansea | 1989 |
| Glen Lyon Limited | North Berwick | 2025 |
| Glen Tanar Petrophysics Ltd | Inverurie | 2025 |
| Glenbane Stone Ltd | Omagh | 2011 |
| Glencommon Ltd | Banchory | 2024 |
| Glenex Limited | Leicester | 2001 |
| Glenhull Safety Services Limited | Malton | 2015 |
| Glenmuckloch Minerals Limited | Kettering | 2013 |
| Glenmuckloch Restoration Limited | Kettering | 2013 |
| Glentown Stone Limited | Derry | 2013 |
| Glenville Mining Limited | Glasgow | 2018 |
| Glenwood Commerce Limited | London | 2000 |
| Gleshy Holdings Limited | Strabane | 2021 |
| GLF Project Controls Ltd | Stirling | 2019 |
| GLJ Rigging and Lifting Services Ltd | Southport | 2025 |
| Global Abundance Platform Limited | London | 2019 |
| Global Africinvest Ltd | London | 2023 |
| Global Centre for Peacebuilding and Business | London | 2026 |
| Global Coffee General Suppliers Ltd. | London | 2025 |
| Global Connections Trading (UK) Ltd | Winchester | 2008 |
| Global Emerald Ltd | Edinburgh | 2015 |
| Global Energy Investment Ltd | London | 2021 |
| Global Energy Transition Limited | London | 2020 |
| Global Engineering and Investment Ltd | London | 2020 |
| Global ER Consultancy Ltd | Essex | 2006 |
| Global Exergy Limited | London | 2003 |
| Global HDD Services Limited | Rochdale | 2016 |
| Global Internal Offshore Limited | Eastbourne | 2025 |