| GB Visuals Ltd | Administrative & support | 2014 |
| GC Cleaning Service Mobile Ltd | Administrative & support | 2022 |
| GCW Installations Limited | Information & communication | 2010 |
| GD Curtain Decor Ltd | Wholesale & retail | 2022 |
| GDL (Chiswick) LLP | | 2015 |
| GDL (Creekside) Limited | Construction | 2016 |
| GDL (Luton) Developments Limited | Construction | 2016 |
| GDL (Midlands) Limited | Construction | 2008 |
| GDL (Millharbour) Limited | Construction | 2014 |
| GDL (Romford) Limited | Construction | 2016 |
| GDL (Slough Developments) Limited | Construction | 2015 |
| GDL (Tower Bridge Road) Limited | Construction | 2017 |
| GDL Holdco Limited | Financial services | 2016 |
| GDS Immigration Law Ltd | Professional & scientific | 2018 |
| Gdsd Properties Ltd | Real estate | 2016 |
| Gedawsconsult Ltd | Professional & scientific | 2024 |
| Gell Property Investments Limited | Real estate | 2025 |
| Geller Investments (1963) Limited | Construction | 1963 |
| Gemstone Care Ltd | Hospitality | 2007 |
| General Practice Support Limited | Health & social care | 2015 |
| General Technology Limited | Information & communication | 1987 |
| Generalist Consulting Ltd | Professional & scientific | 2024 |
| Genesis Animal Physiotherapy Ltd | Professional & scientific | 2025 |
| Genesis Global Partners Ltd | Financial services | 2018 |
| Genesis HR Limited | Professional & scientific | 2004 |
| Genesis Transfer Ltd | Financial services | 2024 |
| George Simmons Racing Ltd | Arts & recreation | 2005 |
| Georgia Kousoulou Ltd | Arts & recreation | 2015 |
| Georgie Yana Ltd | Professional & scientific | 2019 |
| Geosib Properties Limited | Construction | 2016 |
| Germander Management Limited | Other services | 1998 |
| Gesto UK Limited | Hospitality | 2019 |
| GFA Transport Services Limited | Transport & logistics | 2022 |
| GFC Management Ltd | Other services | 2018 |
| GG CHI Ltd | Wholesale & retail | 2024 |
| GG Painting Ltd | Construction | 2020 |
| GG-026-365 Limited | Real estate | 2021 |
| GG-032-031 Limited | Real estate | 2025 |
| GG-725-956 Limited | Real estate | 2021 |
| GG-775-231 Limited | Real estate | 2024 |
| GG-977-920 Limited | Real estate | 2021 |
| Ggem Specialist Contracts Ltd | Construction | 2015 |
| GH Leisure Ltd | Administrative & support | 2017 |
| Gh/Ah Bear Lane Limited | Construction | 2018 |
| Gherkin & Beigel Limited | Real estate | 2021 |
| Ghiran Construction Ltd | Construction | 2015 |
| GHL ( Apex 1 Development ) Limited | Construction | 2021 |
| GHL (Ashford) Limited | Construction | 2021 |
| GHL (Aviation House) Limited | Real estate | 2022 |
| GHL (Barrow Road) Limited | Construction | 2022 |
| GHL (Bath) Limited | Administrative & support | 2008 |
| GHL (Berkhamsted) Limited | Real estate | 2019 |
| GHL (BPC) Limited | Administrative & support | 2015 |
| GHL (Bristol) Limited | Construction | 2016 |
| GHL (Brook Road) Limited | Construction | 2021 |
| GHL (Brooks Laundry) Limited | Construction | 2017 |
| GHL (Car Park Space 1) Limited | Administrative & support | 2014 |
| GHL (Car Park Space 2) Limited | Administrative & support | 2014 |
| GHL (Car Park Space 3) Limited | Administrative & support | 2014 |
| GHL (Car Park Space 4) Limited | Administrative & support | 2014 |
| GHL (Carlow Holdings) Limited | Construction | 2024 |
| GHL (Chertsey) Limited | Construction | 2025 |
| GHL (Cheshunt) Limited | Construction | 2024 |
| GHL (CLG) Limited | Administrative & support | 2015 |
| GHL (Crescent Lane) Limited | Construction | 2014 |
| GHL (Durham) Limited | Financial services | 2022 |
| GHL (Elan 2) Limited | Real estate | 2025 |
| GHL (Elan) Limited | Construction | 2024 |
| GHL (EV1) Limited | Administrative & support | 2022 |
| GHL (EV2) Limited | Administrative & support | 2022 |
| GHL (Finchley) Limited | Construction | 2022 |
| GHL (Hackney Wick) Limited | Administrative & support | 2014 |
| GHL (Haywards Heath) Limited | Administrative & support | 2015 |
| GHL (Ipswich) Developments Limited | Construction | 2021 |
| GHL (Kilmorie) Limited | Construction | 2017 |
| GHL (Leegate) Limited | Construction | 2020 |
| GHL (Mallorca West) Limited | Administrative & support | 2019 |
| GHL (Milton Keynes) Limited | Construction | 2021 |
| GHL (Nine Elms) Developments Limited | Construction | 2019 |
| GHL (Nine Elms) Limited | Construction | 2018 |
| GHL (Old Gloucester Road Bristol) Limited | Construction | 2022 |
| GHL (Perranporth) Limited | Construction | 2016 |
| GHL (PG ST Catherines Bristol) Limited | Construction | 2022 |
| GHL (Regency Hall Cheltenham) Limited | Construction | 2022 |
| GHL (Selly Oak) Limited | Construction | 2023 |
| GHL (Southall) Limited | Administrative & support | 2016 |
| GHL (Stevenage) Limited | Real estate | 2020 |
| GHL (Sunnyside) Limited | Construction | 2019 |
| GHL (Tcrw) Limited | Construction | 2019 |
| GHL (THV) Limited | Construction | 2023 |
| GHL (Trinity Square) Limited | Administrative & support | 2015 |
| GHL (Triumph Road Beckton) Limited | Construction | 2022 |
| GHL (Ufford ST) Limited | Administrative & support | 2008 |
| GHL (Whitby) Limited | Construction | 2023 |
| GHL (Wickside) Limited | Water & waste | 2013 |
| GHL Apsley (Leeds Eastgate) Limited | Construction | 2024 |
| GHL Apsley DM Limited | Administrative & support | 2024 |
| GHL Canterbury Limited | Construction | 2024 |
| GHL Chiltern Street Limited | Administrative & support | 2008 |
| GHL Connectivity and Infrastructure Limited | Administrative & support | 2022 |