| GM Consulting Ltd | Administrative & support | 2025 |
| GM Heating Ltd | Construction | 2021 |
| GM Legato Limited | Professional & scientific | 2015 |
| GM Legato Property Limited | Real estate | 2016 |
| GM Refrigeration Limited | Manufacturing | 2009 |
| GM Testing Services Limited | Professional & scientific | 2024 |
| GMA Architectural Ltd | Manufacturing | 2019 |
| GMA Doors and Windows Ltd | Construction | 2021 |
| Gmap Analytics Limited | Information & communication | 2019 |
| Gmap Holdings Limited | Professional & scientific | 2019 |
| Gmarkom Ltd | Professional & scientific | 2025 |
| GMB Group LLP | | 2019 |
| GMB UK Trading Limited | Wholesale & retail | 2018 |
| GMC Car Sales Ltd | Wholesale & retail | 2026 |
| Gmd-R Ltd | Manufacturing | 2024 |
| GMI Construction Group PLC | Construction | 1986 |
| GMI Construction Limited | Extraterritorial | 1983 |
| GMI Developments Limited | Real estate | 2007 |
| GMI Holbeck Land (Malton) Limited | Real estate | 2011 |
| GMI Holdings Limited | Professional & scientific | 1997 |
| GMI Investments Limited | Real estate | 2007 |
| GMI Miller Limited | Financial services | 2023 |
| GMI Property Company Limited | Real estate | 2004 |
| GMI Property Holdings Limited | Financial services | 2003 |
| GMI Special Projects Limited | Construction | 2011 |
| GML (Morley) Limited | Health & social care | 2017 |
| GMM Property Management Ltd | Real estate | 2019 |
| GMP Property Investments Limited | Real estate | 2024 |
| GMR Leeds Properties Ltd | Real estate | 2026 |
| Gmsv Properties Ltd | Construction | 2023 |
| Gmtma Limited | Agriculture & fishing | 2012 |
| Gmtz Properties Limited | Real estate | 2025 |
| Gmu-Health Limited | Health & social care | 2015 |
| GMV Property Management Limited | Real estate | 2005 |
| GMW Management Group Limited | Financial services | 2026 |
| Gnci Limited | Other services | 2022 |
| GND Scaffolding Limited | Construction | 2023 |
| GNE Packaging Limited | Manufacturing | 2017 |
| GNK Softworks Ltd | Information & communication | 2024 |
| GNL Delivery Ltd | Transport & logistics | 2026 |
| GNL Training Academy CIC | Education | 2026 |
| GNM Properties Limited | Real estate | 2021 |
| GNR Developments Ltd | Construction | 2024 |
| GNSSM4 Ltd | Health & social care | 2016 |
| GNW Estates Limited | Construction | 2018 |
| Go 2 Valet Ltd | Administrative & support | 2022 |
| Go Beautiful Vending Ltd | Wholesale & retail | 2024 |
| Go Beyond Learning Ltd | Professional & scientific | 2025 |
| Go Carro Limited | Wholesale & retail | 2024 |
| Go Clean Go Ltd | Administrative & support | 2024 |
| Go Convert Solutions Limited | Information & communication | 2020 |
| Go Darts Ltd | Wholesale & retail | 2021 |
| Go Explore Properties Ltd | Real estate | 2021 |
| Go for IT and GET IT Limited | Wholesale & retail | 2009 |
| Go G Cleaning Ltd | Administrative & support | 2025 |
| Go Go Estate Ltd | Real estate | 2025 |
| Go Go Real Estate (UK) Ltd | Real estate | 2018 |
| Go International AMP Limited | Professional & scientific | 2023 |
| Go Menswear Ltd | Wholesale & retail | 2016 |
| Go Optics Ltd | Wholesale & retail | 2022 |
| Go Phoenix Ltd. | Professional & scientific | 2006 |
| Go Publicity Limited | Professional & scientific | 2008 |
| Go! Thai Bistro Ltd | Hospitality | 2026 |
| GO4 Properties Ltd | Real estate | 2024 |
| Goal Security Solution Ltd. | Administrative & support | 2023 |
| Goals for YOU Ltd | Wholesale & retail | 2024 |
| Goalx Limited | Arts & recreation | 2025 |
| Goat Garmz Ltd | Wholesale & retail | 2025 |
| Goat Properties Ltd | Real estate | 2022 |
| Goat Roadtrip Ltd | Wholesale & retail | 2021 |
| Goat Ventures Northern Limited | Professional & scientific | 2018 |
| Goat-I Music Media Group Ltd | Wholesale & retail | 2026 |
| Gobazaar Ltd | Wholesale & retail | 2023 |
| Gobia Stores Ltd. | Wholesale & retail | 2025 |
| GOC Technologies UK Limited | Water & waste | 2004 |
| Gocarmats Ltd | Wholesale & retail | 2021 |
| Gochi Studio Ltd | Information & communication | 2025 |
| Gocroft Ltd | Real estate | 2021 |
| GOD Bless the Band Ltd | Arts & recreation | 2026 |
| GOD Embassy Ltd | Professional & scientific | 2020 |
| God's Grace Enterprise Limited | Health & social care | 2025 |
| Godash Transport Ltd | Transport & logistics | 2026 |
| Goddard Recruitment Limited | Administrative & support | 2017 |
| Goddington Pierce Limited | Administrative & support | 2019 |
| Godfather 2 Ltd | Real estate | 2026 |
| Godloves PI Limited | Extraterritorial | 2011 |
| Godwinson Ltd | Real estate | 2017 |
| God’S Good News Ministry House of ALL Nations Ltd | Other services | 2025 |
| Gogi Limited | Health & social care | 2021 |
| Gogi Trading Limited | Real estate | 2007 |
| Gogo Electronix Ltd | Other services | 2023 |
| Gogo Gold Ltd | Wholesale & retail | 2025 |
| Gogopower Limited | Manufacturing | 2016 |
| Gohel Commercial Limited | Real estate | 2022 |
| Gohel Group Limited | Financial services | 2022 |
| Gohel Residential Limited | Real estate | 2022 |
| Gokai Digital Ltd | Other services | 2025 |
| Goko Limited | Wholesale & retail | 2017 |
| GOL Yakh Limited | Other services | 2026 |
| Gold & Co Properties Ltd | Real estate | 2025 |