| G P Symons Trading Limited | Professional & scientific | 2019 |
| G S Events Management Limited | Professional & scientific | 2013 |
| G S Kemp Services Ltd | Professional & scientific | 2014 |
| G Settle Cars Ltd | Administrative & support | 2016 |
| G Small Services Ltd | Construction | 2015 |
| G Star Fish Limited | Hospitality | 2025 |
| G T Mccolgan Ltd | Construction | 2017 |
| G TEK Electrical Solutions Ltd | Energy | 2012 |
| G Transport & Trading Limited | Transport & logistics | 2011 |
| G Treanor Limited | Health & social care | 2016 |
| G W H Finance Limited | Professional & scientific | 2007 |
| G W Services (UK) Limited | Manufacturing | 2003 |
| G Walsh Transport Limited | Transport & logistics | 2015 |
| G Waring Consulting Ltd | Professional & scientific | 2019 |
| G Woods Landscapes Ltd | Administrative & support | 2020 |
| G&A Bathrooms Limited | Construction | 2024 |
| G&Afishbar Ltd | Hospitality | 2025 |
| G&Afishchip Ltd | Hospitality | 2026 |
| G&C Main Holdings Ltd | Financial services | 2026 |
| G&Cm Services Limited | Information & communication | 2024 |
| G&D GAS Services Ltd | Construction | 2021 |
| G&E Main Holdings Ltd | Financial services | 2026 |
| G&G Driveway&Patios Ltd | Construction | 2025 |
| G&G Waste Recycling Limited | Water & waste | 2009 |
| G&J Mechanical Services Ltd | Professional & scientific | 2026 |
| G&M Project Management Limited | Professional & scientific | 2019 |
| G&M Trans Limited | Transport & logistics | 2023 |
| G&O Consultancy Services Ltd | Professional & scientific | 2021 |
| G&P Sports Management Ltd | Arts & recreation | 2022 |
| G'S Glaze Ltd | Hospitality | 2026 |
| G-Active Cleaning Limited | Administrative & support | 2026 |
| G-Loc Active Wear Ltd | Wholesale & retail | 2026 |
| G-Roc Property Ltd | Real estate | 2026 |
| G-Tech Pro Ltd | Wholesale & retail | 2026 |
| G-Zone Social Ltd | Information & communication | 2023 |
| G. & J. Cash & Carry Limited | Wholesale & retail | 1977 |
| G. Brunt Plough Inn Ltd | Hospitality | 2023 |
| G. Hankinson Limited | Construction | 2025 |
| G. S. Cabs Ltd | Transport & logistics | 2023 |
| G. T. Property Management (NW) Ltd | Real estate | 2017 |
| G. TAI Ltd | Real estate | 2020 |
| G.A.B Scaffold Solutions Ltd | Construction | 2019 |
| G.A.P.E Trans Limited | Transport & logistics | 2015 |
| G.A.S Locksmiths Limited | Manufacturing | 2012 |
| G.B.F.A.S Investments Limited | Financial services | 2013 |
| G.Clark Ltd | Construction | 2007 |
| G.D.S Joinery Ltd | Construction | 2021 |
| G.E.C Developments Ltd | Construction | 2026 |
| G.E.D.I Ltd | Real estate | 2019 |
| G.E.E. Transportation Limited | Transport & logistics | 2015 |
| G.H. Ceramics Limited | Manufacturing | 2001 |
| G.M. Decs Limited | Construction | 2007 |
| G.N.F. Design Limited | Administrative & support | 2003 |
| G.R.I. P DRY Lining Ltd | Construction | 2019 |
| G.S. Milton Limited | Wholesale & retail | 1974 |
| G42 Studios Ltd | Arts & recreation | 2019 |
| G6 Contracting Ltd | Information & communication | 2013 |
| G8 Medical Agency Limited | Professional & scientific | 2010 |
| G8I Construction Ltd | Construction | 2024 |
| G8I Ltd | Construction | 2012 |
| GA Optical Limited | Wholesale & retail | 2022 |
| GA Smokehouse Ltd | Hospitality | 2025 |
| GA07 Commercial Ltd | Professional & scientific | 2025 |
| Gaan YAM Limited | Hospitality | 2021 |
| GAB Elec Ltd | Construction | 2026 |
| Gabriel Dobrin Ltd | Transport & logistics | 2025 |
| Gabriel Health Care Ltd | Health & social care | 2019 |
| Gabrielcompany Limited | Wholesale & retail | 2025 |
| Gabriellaspmu Limited | Other services | 2017 |
| Gaby Crolla Consultancy Ltd | Education | 2021 |
| Gadal Construction Ltd | Construction | 2023 |
| Gadesso Ltd | Construction | 2014 |
| Gadfly Media Ltd | Information & communication | 2019 |
| Gadfly Press Limited | Information & communication | 2017 |
| Gadget Lords Limited | Wholesale & retail | 2021 |
| GAF Investments Ltd | Professional & scientific | 2017 |
| GAFFA18 Limited | Hospitality | 2018 |
| GAG (Liverpool) Ltd | Hospitality | 2016 |
| Gagroberts Limited | Transport & logistics | 2026 |
| Gaia Enterprise Ltd | Real estate | 2022 |
| Gaia Tree Ltd | Arts & recreation | 2025 |
| Gaifa Oldswan Limited | Wholesale & retail | 2024 |
| Gaiffe Limited | Professional & scientific | 2025 |
| Gail Denton Hair and Beauty Limited | Other services | 2026 |
| Gainies Ltd | Manufacturing | 2026 |
| Gainland (International) Limited | Wholesale & retail | 1983 |
| Gainsborough Property Investments Ltd | Other services | 2014 |
| Gainsburgh Limited | Hospitality | 1992 |
| Galacticleaps Ltd | Wholesale & retail | 2021 |
| Galacticspa Limited | Wholesale & retail | 2018 |
| Galata Huyton Restaurant Ltd | Hospitality | 2025 |
| Galaxy Sparks Ltd | Construction | 2020 |
| Gales Builder Centre Ltd | Wholesale & retail | 2025 |
| Galfarsoro Surveying Limited | Professional & scientific | 2024 |
| Galgate Freehold Limited | Real estate | 2019 |
| Galibier Holdings Ltd | Health & social care | 2022 |
| Galis I.T. Solutions Limited | Information & communication | 2022 |
| Gallagher Autos Limited | Wholesale & retail | 1997 |
| Gallagher Medical Devices Ltd | Health & social care | 2010 |
| Gallagher Motor Company Limited | Extraterritorial | 2016 |