| GCR Central Limited | Wholesale & retail | 2003 |
| Gcse Maths Mastery Ltd | Education | 2024 |
| Gcsh Ltd | Construction | 2016 |
| GD Building Services Limited | Construction | 2004 |
| GD Haulage Ltd | Transport & logistics | 2025 |
| Gdatta Ltd | Administrative & support | 2023 |
| Gdbs Holdings Limited | Financial services | 2019 |
| Gdbs Property Limited | Real estate | 2017 |
| Gdela Limited | Other services | 2020 |
| GDM Builders Ltd | Construction | 2023 |
| GDM Technology Ltd | Administrative & support | 2015 |
| Gdpr Dashboard Limited | Information & communication | 2018 |
| Gdpr Safe Limited | Administrative & support | 2021 |
| Gdpw Ltd | Professional & scientific | 2020 |
| GDR Beauty Ltd | Other services | 2026 |
| GDS Transport Services Ltd | Transport & logistics | 2019 |
| Gdthngs 2 Ltd | Professional & scientific | 2025 |
| Gdthngs Ltd | Professional & scientific | 2020 |
| Gdthngs TR Limited | Professional & scientific | 2023 |
| Gdvc Logistics Limited | Transport & logistics | 2026 |
| GDW Trading Ltd | Wholesale & retail | 2024 |
| GE Advisory Services Limited | Professional & scientific | 2015 |
| GE Detailing Ltd | Manufacturing | 2020 |
| Ge-Tec Ltd | Manufacturing | 2024 |
| Geany Style Private Ltd | Other services | 2018 |
| Gearbox Theatre Company Ltd | Arts & recreation | 2018 |
| Gearhub Auto Services Ltd | Wholesale & retail | 2026 |
| Geary Bro's Ltd | Real estate | 2024 |
| Geary Building Projects England Limited | Construction | 2025 |
| Geary's Properties Limited | Real estate | 2019 |
| Gecko International Limited | Wholesale & retail | 2023 |
| Gecko Underfloor Heating Limited | Wholesale & retail | 2023 |
| Gedding RD Investments Ltd | Real estate | 2014 |
| Gee's Motors Limited | Other services | 2019 |
| Geebee Global Supply & Services Limited | Wholesale & retail | 2026 |
| Geek Villain Limited | Wholesale & retail | 2019 |
| Geek- Tech Security Limited | Administrative & support | 2023 |
| Geek-Tech Security Services Limited | Administrative & support | 2026 |
| Geetas Fast Food Ltd | Hospitality | 2009 |
| Geetcompany Limited | Wholesale & retail | 2023 |
| Geist LAB Limited | Professional & scientific | 2025 |
| Geko Engineering Consult Ltd | Construction | 2020 |
| Gekostrans Ltd | Administrative & support | 2017 |
| GEL Inns Ltd | Hospitality | 2024 |
| Gelato Junction Ltd | Hospitality | 2018 |
| Gelato Village Ltd | Hospitality | 2013 |
| Gelato Village QR Ltd | Hospitality | 2022 |
| GEM Building Maintenance Ltd | Construction | 2023 |
| GEM Circuits Limited | Manufacturing | 2018 |
| GEM Fundraising Ltd | Other services | 2021 |
| GEM Marketing Investments Ltd | Financial services | 2017 |
| GEM Marketing Ltd | Professional & scientific | 2017 |
| GEM Packaging Ltd | Administrative & support | 2018 |
| GEM Reusables Ltd | Manufacturing | 2023 |
| GEM Style UK Ltd | Wholesale & retail | 2015 |
| Geminence Ltd | Manufacturing | 2021 |
| Gemini 11 Ltd | Administrative & support | 2023 |
| Gemini Adhesives Limited | Wholesale & retail | 2003 |
| Gemini Beauty House Ltd | Other services | 2025 |
| Gemini Coffee Ltd | Hospitality | 2008 |
| Gemini Conservatories Limited | Construction | 2001 |
| Gemini Equity Ltd | Real estate | 2021 |
| Gemini Goods Limited | Wholesale & retail | 2026 |
| Gemini Health Group Ltd | Professional & scientific | 2020 |
| Geminifive Ltd | Wholesale & retail | 2024 |
| Geminique Ltd | Wholesale & retail | 2024 |
| Gemlead Ltd | Wholesale & retail | 2021 |
| Gemleys Ltd | Wholesale & retail | 2013 |
| Gems Projects Ltd | Construction | 2020 |
| Gemsa Limited | Real estate | 1988 |
| Gemstone Homes Limited | Construction | 2005 |
| Gemzelle Ltd | Other services | 2025 |
| Genatique Natural Limited | Manufacturing | 2016 |
| Genco Property Group Limited | Construction | 2022 |
| Gends Holdings Limited | Financial services | 2025 |
| Genefuel Limited | Information & communication | 2025 |
| General and Regional Anaesthesia Services Limited | Health & social care | 2022 |
| General BOO Ltd | Hospitality | 2025 |
| General Dealer Limited | Wholesale & retail | 2015 |
| General Group LP | | 2017 |
| General Health Consulting Group Ltd | Health & social care | 2015 |
| General Logistics Ltd | Transport & logistics | 2023 |
| General Print Materials (Holdings) Limited | Professional & scientific | 1995 |
| General Project Transport Ltd | Manufacturing | 2014 |
| General Public Limited | Wholesale & retail | 2006 |
| Generate Consulting Ltd | Professional & scientific | 2025 |
| Generation Cabs Ltd | Transport & logistics | 2022 |
| Generation Investments Limited | Administrative & support | 2009 |
| Generation VW Classic Parts Limited | Wholesale & retail | 2025 |
| Generation Youth C.I.C. | Education | 2020 |
| Generation.Net Limited | Information & communication | 2003 |
| Generations Property Partners Ltd | Real estate | 2024 |
| Generic Leisure Limited | Hospitality | 2004 |
| Generic Property Co Limited | Real estate | 2023 |
| Genesiq Ltd | Information & communication | 2026 |
| Genesis AI Ltd | Real estate | 2015 |
| Genesis Child Care Group Ltd | Health & social care | 2025 |
| Genesis ECM Ltd | Professional & scientific | 2024 |
| Genesis Energy Solutions Ltd. | Energy | 2016 |
| Genesis Heating and Plumbing Ltd | Construction | 2018 |