| GAS Kitchen Services Limited | Manufacturing | 2009 |
| GAS Mark Training and Assessment Ltd | Construction | 2018 |
| Gaselee & Co Limited | Professional & scientific | 2026 |
| Gatc Consulting and Advisory Ltd | Professional & scientific | 2026 |
| Gate R US Ltd | Manufacturing | 2024 |
| Gateway Recycling Solutions Limited | Wholesale & retail | 2025 |
| Gateway Waste Management Limited | Wholesale & retail | 2025 |
| Gattefosse (UK) Limited | Wholesale & retail | 2000 |
| Gazelle Legal Consultancy Limited | Professional & scientific | 2021 |
| GB Nightingale Ltd | Real estate | 2024 |
| GB Recruiters Limited | Administrative & support | 2025 |
| Gbenga IT Consultant Ltd | Information & communication | 2019 |
| GBS2 Limited | Construction | 2021 |
| Gbsm Ltd | Professional & scientific | 2005 |
| GDG Cladding & Construction Ltd | Construction | 2011 |
| GDM Design Services Limited | Professional & scientific | 2023 |
| GDS International Ltd | Wholesale & retail | 2025 |
| GE Coaches Ltd | Transport & logistics | 2023 |
| Geall Technologies Ltd. | Information & communication | 2013 |
| Gear Again Ltd | Wholesale & retail | 2025 |
| Gear-Up Consultancy Limited | Professional & scientific | 2016 |
| GED Wylie Associates Limited | Mining & quarrying | 2005 |
| Gembeings Ltd | Arts & recreation | 2025 |
| Gems Europe Ltd | Administrative & support | 2018 |
| General Consultancy Limited | Professional & scientific | 2022 |
| Generation Studio Ltd | Extraterritorial | 2021 |
| Genesis 3D Design Limited | Administrative & support | 2003 |
| Genesis Global Group Rentals Limited | Real estate | 2025 |
| Genetrix - Construction Engineering & Technology Ltd | Construction | 2021 |
| Genetrix Cost & Contract Audit Ltd | Professional & scientific | 2023 |
| Genetrix Drone Ltd | Professional & scientific | 2020 |
| Genetrix Ltd | Manufacturing | 2019 |
| Genetrix-Acquisitions Ltd | Financial services | 2020 |
| Genetrix-Property Ltd | Construction | 2023 |
| Geneva Micro Ltd | Professional & scientific | 2015 |
| Genie Drinks Ltd | Manufacturing | 2017 |
| Genius Holdings Limited | Information & communication | 2016 |
| Geniuslab.Dev Limited | Information & communication | 2018 |
| Genoa Human Resources Limited | Administrative & support | 2010 |
| Genxsol Limited | Information & communication | 2011 |
| Geoflow Solutions Ltd | Professional & scientific | 2025 |
| Geordiedav Productions Ltd | Arts & recreation | 2020 |
| Georgina Hamid T/A Crfm Consulting Ltd | Manufacturing | 2017 |
| Gerry's International (UK) Limited | Hospitality | 2013 |
| Gerry's Leisure and Retail Limited | Hospitality | 2018 |
| Gerry`S Offshore Incorporations Limited | Hospitality | 2004 |
| Geshary Coffee UK, Ltd. | Hospitality | 2024 |
| GH Medical Writing Ltd | Professional & scientific | 2019 |
| GH Optical Ltd | Health & social care | 2019 |
| Ghnd Limited | Real estate | 2022 |
| Giachi Ltd | Wholesale & retail | 2023 |
| Giftalluk Limited | Manufacturing | 2020 |
| Gilbtech Limited | Information & communication | 2017 |
| Gilded Hair Limited | Other services | 2013 |
| Gill Industries Ltd | Real estate | 2017 |
| Gill of Berkshire Limited | Wholesale & retail | 2019 |
| Gill Residential Limited | Real estate | 2025 |
| Gingerjolley Ltd | Health & social care | 2018 |
| Giordani Enterprises Limited | Hospitality | 2014 |
| Giotto Legno UK Ltd | Wholesale & retail | 2019 |
| Girda Logistics Ltd | Water & waste | 2025 |
| Giving Bags of Hope Ltd | Health & social care | 2025 |
| Gizmo Hospitality Ltd | Hospitality | 2025 |
| GJL Landscapes Limited | Administrative & support | 2025 |
| Gkdbowden Limited | Manufacturing | 2005 |
| Gkmn Design Ltd | Wholesale & retail | 2021 |
| Glacia Skincare Limited | Wholesale & retail | 2026 |
| Gladstone Estate Limited | Administrative & support | 2009 |
| Glam Nail Spa Limited | Other services | 2023 |
| Glasa Wind Farm Limited | Energy | 2022 |
| Glass Strategy Ltd | Professional & scientific | 2026 |
| Glaurie Ltd | Wholesale & retail | 2026 |
| Glendye Wind Farm Limited | Energy | 2014 |
| Glenhurst Mechanical Services Ltd | Construction | 2012 |
| Glenn's Kitchen Limited | Hospitality | 2019 |
| Glennon-Hearst Limited | Professional & scientific | 2011 |
| GLF Orchid Hotels Ltd | Hospitality | 2013 |
| Global Acres Ltd | Real estate | 2025 |
| Global Airline Services Ltd | Administrative & support | 2000 |
| Global Career Company (Holdings) Ltd | Administrative & support | 2014 |
| Global Career Company Limited | Administrative & support | 2002 |
| Global Educational Learning Ltd | Education | 2024 |
| Global General Trading Limited | Wholesale & retail | 2017 |
| Global Incentives Limited | Administrative & support | 2013 |
| Global Infotech Ltd | Information & communication | 2019 |
| Global Medical Device Consulting Limited | Administrative & support | 2017 |
| Global Refinish Supplies Ltd | Wholesale & retail | 2014 |
| Global Reserves Ltd. | Professional & scientific | 2020 |
| Global Security Resources Limited | Administrative & support | 2014 |
| Global Source Media Ltd | Information & communication | 2023 |
| Global Trade Point Limited | Transport & logistics | 2015 |
| Global Villager Limited | Information & communication | 2015 |
| Globuss AHS Ltd | Manufacturing | 2020 |
| Gloria Real Estates Limited | Real estate | 2026 |
| Gloryplus International Assembly | Other services | 2024 |
| Gloucester Healthcare Partnership Limited | Financial services | 2001 |
| Glove Monkey Ltd | Manufacturing | 2021 |
| Glow Medispa Ltd | Other services | 2021 |
| Glyph Technologies Ltd | Information & communication | 2024 |
| GMR Associates Limited | Professional & scientific | 2006 |