| GORASIA4 Limited | Professional & scientific | 2022 |
| Gordions Capital Ltd | Financial services | 2024 |
| Gordon Reynolds Properties Limited | Real estate | 2024 |
| Gordon Shipping Limited | Administrative & support | 2019 |
| Gordon Terrace Properties Ltd | Real estate | 2025 |
| Gorgeousbyiza Ltd | Other services | 2025 |
| Goride Ltd | Transport & logistics | 2026 |
| Goscaff.Com Ltd | Professional & scientific | 2018 |
| Goshen Connections Limited | Education | 2012 |
| Gosm Limited | Real estate | 2019 |
| Gotei 13 Ltd | Wholesale & retail | 2023 |
| Gothic Bags Ltd | Wholesale & retail | 2024 |
| Gouktrip Limited | Administrative & support | 2025 |
| Gout Kitchen Ltd | Hospitality | 2026 |
| Govindsons Ltd | Construction | 2017 |
| GP Automate Limited | Information & communication | 2021 |
| GP Bellis Ltd | Construction | 2019 |
| GP Compliance Solutions Ltd | Professional & scientific | 2025 |
| GP Construcion Ltd | Construction | 2025 |
| GP Overseas Trading Ltd | Wholesale & retail | 2024 |
| Gpre Logistics Ltd | Real estate | 2025 |
| GPS GRP Limited | Manufacturing | 2025 |
| Gpsld Ltd | Information & communication | 2016 |
| GQH Limited | Real estate | 2017 |
| GR Decor Ltd | Construction | 2026 |
| GR Partners Limited | Hospitality | 2002 |
| GR Transport Services Ltd | Transport & logistics | 2021 |
| GR8 Feast Ltd | Hospitality | 2018 |
| Grab N' Grub Ltd | Hospitality | 2021 |
| Grab NO 1 Ltd | Hospitality | 2017 |
| Gracemara Consultants Limited | Professional & scientific | 2015 |
| Gracypvt Ltd | Hospitality | 2024 |
| Grade House Limited | Manufacturing | 2011 |
| Graham for Electric Infrastructure Projects Ltd | Energy | 2020 |
| Grand Cars Ltd | Wholesale & retail | 2012 |
| Grand Line Education Ltd | Education | 2023 |
| Grand Nest Ltd | Construction | 2018 |
| Grand Union Lodge Ltd | Health & social care | 2026 |
| Grange Nivas Ltd | Real estate | 2024 |
| Graphic Creations Limited | Information & communication | 2007 |
| Graphne Design Ltd | Professional & scientific | 2015 |
| Grassoff Beverages Ltd | Manufacturing | 2024 |
| Gratifybay Ltd | Wholesale & retail | 2024 |
| Gravise Limited | Administrative & support | 2015 |
| Gravity Impact Technology Ltd | Information & communication | 2017 |
| Graws Entertainment Ltd | Professional & scientific | 2026 |
| Grays Marble Asset Management Limited | Households | 2024 |
| Grbh Limited | Wholesale & retail | 2015 |
| Great Arrow Limited | Hospitality | 2025 |
| Great Britain Disability Football Association Ltd | Arts & recreation | 2013 |
| Great Britindo Gems & Metals Ltd | Manufacturing | 2026 |
| Great Hollands (2024) Ltd | Wholesale & retail | 2024 |
| Great Leads Ltd | Wholesale & retail | 2014 |
| Great London Auto Ltd | Wholesale & retail | 2026 |
| Great Marketing Advisors Limited | Professional & scientific | 2024 |
| Great Stone Builders London Ltd | Construction | 2013 |
| Green Aura Services Ltd | Wholesale & retail | 2025 |
| Green Car Wash Ltd | Administrative & support | 2026 |
| Green Circle Creative Ltd | Professional & scientific | 2023 |
| Green Foot London Limited | Construction | 2013 |
| Green Garden Services UK Ltd | Construction | 2024 |
| Green Insight Skills Ltd | Administrative & support | 2024 |
| Green Olives Media Limited | Professional & scientific | 2026 |
| Green Orchard Limited | Real estate | 2024 |
| Green Pastures Property Services Ltd | Real estate | 2023 |
| Green Property London Ltd | Real estate | 2023 |
| Green Space London Limited | Administrative & support | 2007 |
| Green Systems Ltd. | | 1996 |
| Green Transportation Ltd | Wholesale & retail | 2021 |
| Greendna Ltd | Professional & scientific | 2012 |
| Greene Innovations Ltd | Professional & scientific | 2019 |
| Greenford Trade Limited | Hospitality | 2025 |
| Greenleaf R & S Limited | Real estate | 2009 |
| Greens Court Flats Limited | Households | 1994 |
| Greentara Garden Services Limited | Administrative & support | 2022 |
| Greentech Investment Holdings Ltd | Financial services | 2020 |
| Greentegrity Ltd | Wholesale & retail | 2019 |
| Greenwire Innovations Ltd | Wholesale & retail | 2024 |
| Greenzone Consultants Limited | Professional & scientific | 2025 |
| Greggs Trucking Ltd | Transport & logistics | 2018 |
| Grey & Co Holdings Limited | Extraterritorial | 2023 |
| Grey Panthers Network Limited | Information & communication | 2010 |
| Grey Wolf Properties Ltd | Real estate | 2017 |
| Greystone Limited | Wholesale & retail | 1982 |
| Grid Agents Ltd | Information & communication | 2026 |
| Gridsync Ltd | Information & communication | 2024 |
| Grill Town Ltd | Hospitality | 2024 |
| Grills & Curries Limited | Administrative & support | 2010 |
| Grovewood Construction Ltd | Construction | 2023 |
| Grovewood Joinery Ltd | Construction | 2019 |
| Growmore Services Limited | Real estate | 2021 |
| Growmore UK Properties Limited | Construction | 2023 |
| Growsure Management Ltd | Professional & scientific | 2019 |
| Growzle Ltd | Information & communication | 2026 |
| Grumpyshah Property Limited | Financial services | 2017 |
| Grumpyshah Property Three Ltd | Real estate | 2021 |
| Grumpyshah Property Two Ltd | Real estate | 2021 |
| GS Accountancy Services Limited | Professional & scientific | 2009 |
| GS Design & Developments Ltd | Construction | 2015 |
| GS Infinity Limited | Hospitality | 2023 |