| Future Technicals Ltd | Wholesale & retail | 2025 |
| Future Vision Engineering Services Limited | Information & communication | 2016 |
| FW Incorp 2 Limited | Wholesale & retail | 2014 |
| G & a Properties (Bristol) Ltd | Real estate | 2015 |
| G & J Properties (Midlands) Limited | Real estate | 2004 |
| G a (GAS) Services 2000 Limited | Other services | 2001 |
| G F S a Limited | Manufacturing | 1996 |
| G H Properties (Midlands) Ltd | Real estate | 2014 |
| G I Sykes Group Limited | Construction | 2024 |
| G I Sykes Holding Limited | Real estate | 2007 |
| G I Sykes Limited | Construction | 2007 |
| G I Sykes Properties Limited | Real estate | 1964 |
| G Leech Prop Services Limited | Information & communication | 2003 |
| G P Safety Limited | Construction | 2017 |
| G V Racing Limited | Professional & scientific | 1962 |
| G&G Properties Group Limited | Real estate | 2026 |
| G&S Midlands Limited | Real estate | 2025 |
| G. H. Design Limited | Professional & scientific | 2005 |
| G. M. Contract Decorating Limited | Construction | 2001 |
| G.E.B. Developments Limited | Real estate | 2018 |
| G.G.Holdings Limited | Administrative & support | 2001 |
| G.R Needham Limited | Agriculture & fishing | 1981 |
| G.R.A Retail Ltd | Wholesale & retail | 2026 |
| G.W. Brooks (Flooring) Limited | Wholesale & retail | 1965 |
| GA Healthcare Limited | Health & social care | 2012 |
| GA Housing Limited | Real estate | 2025 |
| Gabitrans 05 Ltd | Transport & logistics | 2017 |
| GAJ Estates Ltd | Real estate | 2019 |
| GAJ Trading Co. Ltd | Real estate | 2019 |
| Galago Travel Ltd | Administrative & support | 2022 |
| Galileo Wealth Ltd | Financial services | 2020 |
| Gallovent Limited | Professional & scientific | 2022 |
| Gallowbridge Limited | Professional & scientific | 2008 |
| Game Rider Ltd | Arts & recreation | 2025 |
| Gappsapps Ltd | Information & communication | 2018 |
| Garage Envy Limited | Wholesale & retail | 2021 |
| Garage Equipment Supplies Ltd | Manufacturing | 2021 |
| Gardeco Group Limited | Financial services | 2020 |
| Gardeco Properties Limited | Real estate | 2021 |
| Garden Pleasure Limited | Manufacturing | 2010 |
| Gardi FAB Barber Ltd | Other services | 2022 |
| Gareth Jones Property Consulting Limited | Real estate | 2026 |
| Garrandale Rail Limited | Extraterritorial | 2020 |
| Garry Green Agencies Limited | Administrative & support | 2003 |
| Garrybawn Construction Ltd | Construction | 2023 |
| Gary J Ashmore Limited | Professional & scientific | 2012 |
| Gates of Malvern Limited | Wholesale & retail | 2017 |
| Gates Railings Direct Limited | Professional & scientific | 2015 |
| Gateway Adventure Limited | Education | 2023 |
| Gateway Investment Services Limited | Financial services | 2015 |
| Gatpro Limited | Extraterritorial | 2015 |
| Gatsby Barbering Limited | Other services | 2024 |
| Gaudium Project Ltd | Education | 2024 |
| Gavin Townsend Limited | Health & social care | 2009 |
| GB Adventure World Ltd | Administrative & support | 2020 |
| GBC Global Services Ltd | Professional & scientific | 2025 |
| GBG Investments Limited | Real estate | 2024 |
| Gbmco Ltd | Construction | 2020 |
| GBS Studios Ltd | Administrative & support | 2023 |
| GC & SON Haulage Ltd | Transport & logistics | 2025 |
| GCE Financial Planning Ltd | Financial services | 2017 |
| GCG Property Limited | Households | 2019 |
| GCR Consultancy Ltd | Information & communication | 2016 |
| GCR Heating & Plumbing Limited | Construction | 2023 |
| GDG & Collis Investments Limited | Financial services | 2023 |
| Geary Property Investments Limited | Real estate | 2021 |
| Geary Property Management Limited | Real estate | 2021 |
| Gega Homes Limited | Real estate | 2020 |
| Gemini Evolutions Limited | Construction | 2014 |
| Gemstone Cars Limited | Wholesale & retail | 2025 |
| GEN QS Limited | Professional & scientific | 2024 |
| Genetix Gym Ltd | Arts & recreation | 2016 |
| Genetix Personal Training & Store Ltd | Health & social care | 2019 |
| Geoff Hill Limited | Wholesale & retail | 1984 |
| George Craig Consultancy Ltd | Professional & scientific | 2017 |
| George Wood (Developments) Limited | Professional & scientific | 1977 |
| George Wooldridge Limited | | 1956 |
| Georgi Doors Limited | Professional & scientific | 2013 |
| GET Your Baps OUT Limited | Hospitality | 2025 |
| GFM Autostamp Ltd | Administrative & support | 2019 |
| GFS Property Investments Limited | Real estate | 2009 |
| Ggreen-Shoots Limited | Wholesale & retail | 2014 |
| GH Storage Systems Ltd | Construction | 2019 |
| Ghastly Ltd | Administrative & support | 2026 |
| GIA Studio Limited | Professional & scientific | 2021 |
| Gighive Ltd | Arts & recreation | 2025 |
| Gill Grozier Consulting Limited | Professional & scientific | 2011 |
| Gill Mechanical Services Limited | Construction | 1993 |
| Gilwater Consultants Limited | Professional & scientific | 2024 |
| GK Mouldings & Sons Ltd | Real estate | 2018 |
| Glasfacial Ltd | Wholesale & retail | 2023 |
| Glass Art Designs Ltd | Arts & recreation | 2022 |
| Glass Art Society UK Limited | Arts & recreation | 2023 |
| Glass Quarter Designs Limited | Arts & recreation | 2016 |
| Glch Ltd | Professional & scientific | 2024 |
| Glen Alexander Limited | Professional & scientific | 2008 |
| Glen Callum Associates Limited | Professional & scientific | 2000 |
| Global Commodity Consulting Ltd | Professional & scientific | 2023 |
| Global Framing & Supplies Limited | Manufacturing | 1992 |
| Global Khan Brothers Ltd | Hospitality | 2025 |