| GB Beauty Limited | Other services | 2011 |
| GB Drylining Systems Limited | Construction | 2019 |
| GB Planet Perform Ltd | Health & social care | 2017 |
| GBA PEN Company Limited | Wholesale & retail | 1970 |
| Gbmf Engineering Limited | Manufacturing | 2015 |
| GC & Associates Ltd | Wholesale & retail | 2019 |
| GC Painting Contractors Limited | Construction | 2025 |
| Gcampaner Limited | Health & social care | 2021 |
| GCG Property Investments Ltd | Real estate | 2025 |
| GCM Network Limited | Professional & scientific | 2023 |
| GD CHL Ltd. | Real estate | 2022 |
| GD Consulting SC Ltd | Professional & scientific | 2022 |
| GD Investments 101 Ltd | Real estate | 2022 |
| Gdch Limited | Administrative & support | 2016 |
| Gdco Limited | Hospitality | 2021 |
| Gdcollins Holdings Limited | Financial services | 2022 |
| GDE Solutions Limited | Information & communication | 2007 |
| Gdip Limited | Hospitality | 2023 |
| GDL Interiors & Construction Ltd | Construction | 2023 |
| GE & NI Limited | Real estate | 2022 |
| Geaves Direct Limited | Real estate | 2008 |
| Geaves Surface Solutions Limited | Wholesale & retail | 1979 |
| Gebera 775 Limited | Transport & logistics | 2025 |
| Geebee Engineering Services Ltd | Professional & scientific | 2023 |
| Geekyclean Ltd | Wholesale & retail | 2020 |
| GEL Labs Limited | Wholesale & retail | 2016 |
| Gelatone Holding Limited | Financial services | 2026 |
| Gelatone Ltd | Wholesale & retail | 2026 |
| GEM Care Solution Ltd | Health & social care | 2025 |
| GEM1NI Limited | Mining & quarrying | 2020 |
| Gemada Limited | Professional & scientific | 2007 |
| Gemini Motorsport Ltd | Wholesale & retail | 2025 |
| Gemma Jones Design Ltd | Information & communication | 2020 |
| Gems Appliance Repairs Limited | Other services | 2015 |
| Gemstone Pools Limited | Real estate | 2008 |
| Gencer Global Ltd | Wholesale & retail | 2025 |
| General Air Conditioning Limited | Manufacturing | 2026 |
| Generation 3 Acoustics Ltd | Construction | 2019 |
| Generation Glazing Ltd | Manufacturing | 2018 |
| Generator (Balsall Common Holdings) Ltd | Construction | 2018 |
| Generator (Balsall Common) Ltd | Construction | 2018 |
| Generator (Bromsgrove) Ltd | Construction | 2016 |
| Generator (Comeytrowe) Ltd | Construction | 2019 |
| Generator (Ferry Road) LLP | | 2016 |
| Generator (Horsham) Ltd | Construction | 2017 |
| Generator (Huller House) LLP | | 2013 |
| Generator (Knockholt Road) Ltd | Construction | 2016 |
| Generator (Orsett) Ltd | Construction | 2018 |
| Generator (Redcliffe Wharf) Ltd | Construction | 2017 |
| Generator (ST Leonards) Ltd | Construction | 2020 |
| Generator (Tring) Ltd | Construction | 2018 |
| Generator (Wherry Road) LLP | | 2011 |
| Generator Developments Ltd | Construction | 2017 |
| Generator Group Holdings Ltd | Construction | 2017 |
| Generator Group Ltd | Real estate | 2017 |
| Generator Management Services LLP | | 2008 |
| Generator Optima (Ferry Road II) Ltd | Construction | 2018 |
| Generator Optima (Ferry Road) Ltd | Construction | 2016 |
| Generator Optima (Laureate Fields II) Ltd | Construction | 2021 |
| Generator Optima (Laureate Fields) Ltd | Construction | 2019 |
| Generator Optima Holdings Ltd | Construction | 2019 |
| Generator Real Estate LLP | | 2006 |
| Generator Real Estate Solutions Ltd | Professional & scientific | 2017 |
| Generator Strategic Land Ltd | Construction | 2017 |
| Genesis Choice Limited | Financial services | 2010 |
| Genesis Scaffolding Limited | Construction | 2017 |
| Genesis Theatre Arts Limited | Professional & scientific | 2008 |
| Genre Fluid Publishing Ltd | Arts & recreation | 2020 |
| Gentian (Andover Parking) Ltd | Extraterritorial | 2014 |
| Gentian (Andover) Limited | Extraterritorial | 2011 |
| Gentian (Bridgend) Limited | Extraterritorial | 2014 |
| Gentian (Derby) Limited | Extraterritorial | 2002 |
| Gentian (Finchley) Limited | Extraterritorial | 2010 |
| Gentian (Gateshead) Limited | Extraterritorial | 2012 |
| Gentian (GHP) Limited | Extraterritorial | 2001 |
| Gentian (Mid-Essex) Limited | Extraterritorial | 2010 |
| Gentian (Newcastle) Limited | Real estate | 2003 |
| Gentian (Norwich) Limited | Real estate | 2001 |
| Gentian (Oxford) Limited | Extraterritorial | 2005 |
| Gentian (Peterborough) Limited | Extraterritorial | 2006 |
| Gentian (Southend) Limited | Extraterritorial | 2010 |
| Gentian (Swansea) Limited | Extraterritorial | 2012 |
| Gentian (Tameside) Limited | Real estate | 1996 |
| Gentian (Tunbridge) Limited | Extraterritorial | 2005 |
| Gentian (Walsall) Limited | Extraterritorial | 2006 |
| Gentian (Walsgrave) Limited | Extraterritorial | 2002 |
| Gentian (Whiston) Limited | Extraterritorial | 2005 |
| Gentian 183 Limited | Real estate | 2018 |
| Gentian Buttermarket Ltd | Real estate | 2017 |
| Gentian Capital Limited | Professional & scientific | 2005 |
| Gentian Capital Properties Limited | Real estate | 2023 |
| Gentian Commercial Limited | Extraterritorial | 2014 |
| Gentian Healthcare Developments Limited | Professional & scientific | 2001 |
| Gentian Holdings Limited | Professional & scientific | 1997 |
| Gentian Investments Limited | Real estate | 2005 |
| Gentian Management Services Ltd | Real estate | 2000 |
| Gentian Maresfield Limited | Construction | 2021 |
| Gentian Partnerships Asset Management Limited | Real estate | 2016 |
| Gentian Partnerships Limited | Professional & scientific | 2002 |
| Gentian Property Investments Ltd | Construction | 2015 |