| Giving Back Challenge Ltd | Arts & recreation | 2026 |
| GJ Coaching Limited | Education | 2020 |
| GJ Lovell Plastering Limited | Construction | 2013 |
| Gj&Dj Holdings Ltd | Financial services | 2024 |
| GJ5 SOU Limited | Wholesale & retail | 2024 |
| Gjca Limited | Administrative & support | 2003 |
| GJL Scientific Consultancy Limited | Professional & scientific | 2013 |
| GJP Mechanical & Building Services Ltd | Construction | 2017 |
| GK Building/Landscaping Ltd | Construction | 2023 |
| GK International Marine Ltd | Construction | 2018 |
| GK Massage Ltd | Other services | 2020 |
| GKF Ltd | Manufacturing | 2006 |
| GKF MFG Ltd | Wholesale & retail | 2013 |
| GKI Williams Ltd | Information & communication | 2021 |
| GKS Exterior Cleaning Franchises Ltd | Administrative & support | 2017 |
| GL Sholing Limited | Hospitality | 2016 |
| Glab Logistics Ltd | Transport & logistics | 2015 |
| Glacier Consultancy Limited | Professional & scientific | 2022 |
| Gladstone Trading Limited | Wholesale & retail | 2000 |
| Glamour & Glitz Boutique Limited | Wholesale & retail | 2017 |
| Glamour Works Limited | Other services | 2014 |
| Glamz Beauty Ltd | Other services | 2024 |
| Glandore Holdings Limited | Professional & scientific | 2023 |
| Glanville Property Ltd | Real estate | 2023 |
| Glasgow Power Solutions Limited | Construction | 2017 |
| Glasi Ltd | Administrative & support | 2026 |
| Glass Products Limited | Manufacturing | 1993 |
| Glasses 2 YOU Limited | Wholesale & retail | 2010 |
| Glassey & Gaglani Hounds Ltd | Hospitality | 2025 |
| Glasshouse Investments Ltd | Construction | 2022 |
| Glassparts UK Limited | Wholesale & retail | 2019 |
| Glasspool Installations Limited | Construction | 2011 |
| Glazing the Island Ltd | Manufacturing | 2018 |
| GLC Bathroom Installations Ltd | Construction | 2022 |
| GLC Plumbing & Heating Ltd | Construction | 2012 |
| Glebe Court Estate (Southampton) Owners Association Limited | Households | 1975 |
| Glebefish Holdings Ltd | Financial services | 2025 |
| Glebefish Limited | Information & communication | 2022 |
| Glebefish Property Ltd | Households | 2025 |
| Glen Dimplex UK Limited | Manufacturing | 1977 |
| Glen Eyre Road Investment Ltd | Real estate | 2025 |
| Glen Jevon Photography & Video Limited | Information & communication | 2011 |
| Gleneagles Training & Livery Centre Ltd | Education | 2015 |
| Glenfarg Group Ltd | Professional & scientific | 2016 |
| Glenfield Holdings Limited | Real estate | 1947 |
| Glenim Consultancy Ltd | Information & communication | 2013 |
| Glenlea Drive Management Limited | Hospitality | 1998 |
| Glenlea Management Company Limited | Households | 1994 |
| Glenview Estates Limited | Administrative & support | 1996 |
| Glenwood Developments Limited | Manufacturing | 1994 |
| Glitch Sport Ltd | Wholesale & retail | 2021 |
| GLJ Design Services Limited | Professional & scientific | 2018 |
| Global Alliance Advisory Services Ltd | Professional & scientific | 2019 |
| Global Am-Bridge Ltd | Transport & logistics | 2021 |
| Global Connect Logistics Ltd | Transport & logistics | 2025 |
| Global Distribution Services Limited | Wholesale & retail | 2025 |
| Global Dynamic Holdings Ltd | Extraterritorial | 2019 |
| Global Dynamic Support Limited | Wholesale & retail | 2007 |
| Global E-Commerce Logistics Ltd | Transport & logistics | 2022 |
| Global Ecommerce Import and Export Ltd | Professional & scientific | 2017 |
| Global Edge Education Limited | Education | 2023 |
| Global Embroidery Ltd | Wholesale & retail | 2021 |
| Global Engineering Surveys Limited | Professional & scientific | 2020 |
| Global Express Management Services Limited | Administrative & support | 2018 |
| Global Express Security Services Limited | Administrative & support | 2013 |
| Global Express Travel Health Clinic Ltd | Health & social care | 2017 |
| Global Foam Limited | Wholesale & retail | 2018 |
| Global Food & Halal Meat Centre Ltd | Wholesale & retail | 2006 |
| Global Healthcare Marketing Ltd | Information & communication | 2021 |
| Global Islamic Financial Market Ltd | Information & communication | 2021 |
| Global Lifting & Training Solutions Ltd | Administrative & support | 2013 |
| Global Marine Logistics Limited | Transport & logistics | 2024 |
| Global Marine UK Ltd | Professional & scientific | 2009 |
| Global Marketing Services Ltd | Information & communication | 2025 |
| Global Multi Tech Ltd | Information & communication | 2018 |
| Global Personnel Direct Limited | Health & social care | 2015 |
| Global Personnel Limited | Administrative & support | 2019 |
| Global Phoenix Limited | Professional & scientific | 2020 |
| Global Phonics and Literacy Research Centre Ltd | Public administration | 2025 |
| Global Positions Ltd | Extraterritorial | 2016 |
| Global Securities Solutions Ltd | Administrative & support | 2013 |
| Global Ship Support Limited | Manufacturing | 2021 |
| Global Techsol UK Limited | Manufacturing | 1999 |
| Global Testnet Ltd | Other services | 2020 |
| Global Trade Investment Centre Limited | Health & social care | 2017 |
| Global Workhealth Ltd | Health & social care | 2015 |
| Global Yacht Racing Limited | Transport & logistics | 2004 |
| Globaldells Company Limited | Transport & logistics | 2024 |
| Globalmondo Ltd | Wholesale & retail | 2018 |
| Globalrule Limited | Professional & scientific | 2006 |
| Globalstorex Limited | Wholesale & retail | 2025 |
| Globeroute Logistics Limited | Transport & logistics | 2025 |
| Globetrottergetaways Ltd | Wholesale & retail | 2023 |
| Globeus Training Ltd | Education | 2018 |
| Globex Enterprises Limited | Real estate | 2018 |
| Globstone Ltd | Hospitality | 2022 |
| Globstone Properties Ltd | Real estate | 2026 |
| Glochyke Ltd | Health & social care | 2022 |
| Glomar Minerals Ltd | Professional & scientific | 2025 |
| Glonek Limited | Health & social care | 2025 |