| Glen C Rodger Limited | Professional & scientific | 2003 |
| Glencairn Investments Ltd | Construction | 2009 |
| Glendale Engineering (Milfield) Limited | Manufacturing | 1984 |
| Glendale Engineering Holdings Limited | Financial services | 2024 |
| Glendale Garage Limited | Wholesale & retail | 2003 |
| Glendale Healthcare Limited | Hospitality | 2023 |
| Glendale Merchandise Ltd | Wholesale & retail | 2021 |
| Gleneyre Properties Limited | Real estate | 2002 |
| Glenfield Energy Solutions Ltd | Construction | 2018 |
| Glengall Road Educational Investments Limited | Extraterritorial | 2021 |
| Glenn Ford Private Finance Limited | Financial services | 2016 |
| Glenn-Chapman Solutions Ltd | Professional & scientific | 2025 |
| Glennis Barras Homes Limited | Real estate | 2024 |
| Glenside Court Management Company Limited | Households | 1982 |
| Glenside View (Pelton Fell) Block B Management Limited | Real estate | 2015 |
| Glenside View (Pelton Fell) Management Limited | Real estate | 2007 |
| Glenthorn Limited | Extraterritorial | 2012 |
| Glidepath C.M. Ltd | Administrative & support | 2017 |
| Glidepath Connect Ltd | Administrative & support | 2016 |
| Glidepath Holdings Ltd | Financial services | 2019 |
| Glidepath Logic Ltd | Information & communication | 2015 |
| Glidepath Redress Ltd | Financial services | 2014 |
| Glidepath RTC Ltd | Financial services | 2007 |
| Glidepath S.W. Ltd | Administrative & support | 2016 |
| Glimbro Fashion Ltd | Wholesale & retail | 2018 |
| GLM Driveways Limited | Administrative & support | 2018 |
| GLM Paving and Landscaping Ltd | Administrative & support | 2023 |
| Globafrik Distribution Ltd | Wholesale & retail | 2016 |
| Global A.C.E Public Relations, Management and Properties UK Ltd | Information & communication | 2019 |
| Global AS UK Limited | Professional & scientific | 2024 |
| Global Bay Ltd | Wholesale & retail | 2024 |
| Global Bridge Group Limited | Administrative & support | 2017 |
| Global Bridge Ltd | Education | 2013 |
| Global Commodity Group Ltd | Wholesale & retail | 2023 |
| Global Courses Ltd | Wholesale & retail | 2021 |
| Global CSV Ltd | Information & communication | 2019 |
| Global Development Ventures Limited | Professional & scientific | 2010 |
| Global Ecom Partners Ltd | Wholesale & retail | 2025 |
| Global Flooring Limited | Wholesale & retail | 2012 |
| Global Gate Shipping LP | | 2017 |
| Global Health Experience Ltd | Education | 2019 |
| Global ICT Solutions Ltd | Information & communication | 2009 |
| Global Premium Properties Limited | Other services | 2024 |
| Global Roofing Services Ltd | Construction | 2018 |
| Global Self Adhesive Products Limited | Manufacturing | 2019 |
| Global Student Sport Consultancy Ltd | Education | 2026 |
| Global Trader International Ltd | Wholesale & retail | 2023 |
| Global Transition Services Limited | Professional & scientific | 2000 |
| Global Underground Limited | Information & communication | 2003 |
| Global Variome | Health & social care | 2016 |
| Global Wealth Management Ltd | Financial services | 2012 |
| Global-Multi Business Ltd | Wholesale & retail | 2025 |
| Globalbridge Operations (UK) Limited | Information & communication | 2017 |
| Globallink Partnerships Ltd | Administrative & support | 2025 |
| Globalmsds Limited | Information & communication | 2000 |
| Globaltech Energy Solutions Ltd | Mining & quarrying | 2025 |
| Globalx Enterprises Ltd | Wholesale & retail | 2025 |
| Globavista Ltd | Information & communication | 2013 |
| Globe Brothers Estates Limited | Construction | 1929 |
| Globefish Group Limited | Real estate | 2022 |
| Glocal Academy Limited | Health & social care | 2015 |
| Gloitse Investment Limited | Wholesale & retail | 2024 |
| Glome Limited | Information & communication | 2023 |
| Gloria Restaurant Ltd | Hospitality | 2018 |
| Glossy Nails Ltd | Other services | 2023 |
| Glow Angel Limited | Other services | 2025 |
| Glow LAB Ltd | Other services | 2025 |
| Glowing Social Ltd | Arts & recreation | 2026 |
| Glowtox Games Ltd | Information & communication | 2024 |
| Glowvolt Heating & Plumbing Ltd | Construction | 2025 |
| Glpd Developments Limited | Construction | 2015 |
| Glpd Holdings Limited | Financial services | 2015 |
| Glpd Property Limited | Real estate | 2011 |
| Gluxe Limited | Other services | 2013 |
| Glycanage Ltd | Professional & scientific | 2016 |
| Glyde Golf Ltd | Wholesale & retail | 2019 |
| Glythera Limited | Extraterritorial | 2018 |
| Glzd Limited | Wholesale & retail | 2021 |
| GM Healthcare Ltd | Health & social care | 2016 |
| GM Lettings Ltd | Real estate | 2023 |
| GMB FAM Investments Limited | Financial services | 2018 |
| Gmelectrics Ltd | Extraterritorial | 2024 |
| GMI Consulting Ltd | Information & communication | 2011 |
| GML Services Ltd | Administrative & support | 2026 |
| GMM Tax Services Ltd | Professional & scientific | 2020 |
| GMP Consultants Limited | Information & communication | 2002 |
| GMP North East Limited | Real estate | 2018 |
| GMR Construction-Maintenance Limited | Construction | 2003 |
| GMS (Northern) Limited | Construction | 2005 |
| GMS Consult Ltd | Professional & scientific | 2025 |
| GMS Prime Limited | Wholesale & retail | 2025 |
| GMS Signs Ltd | Manufacturing | 2025 |
| GMZ Motors Ltd | Wholesale & retail | 2018 |
| GNG Vogue Limited | Wholesale & retail | 2025 |
| GNH Properties Ltd | Real estate | 2025 |
| Gnkk Ltd | Construction | 2025 |
| Gnnw Ltd | Professional & scientific | 2023 |
| Gnosis Health Limited | Information & communication | 2018 |
| GNR Consulting Ltd | Construction | 2025 |
| GNW Design Limited | Professional & scientific | 2015 |