| Gaudius Limited | Professional & scientific | 2012 |
| GB Central Heating & GAS Ltd | Manufacturing | 2022 |
| GB Print & Wear Limited | Manufacturing | 2020 |
| Gbfossils Ltd | Wholesale & retail | 2026 |
| GBJ Environmental Systems (UK) Limited | Construction | 2013 |
| Gc-Renovation Ltd | Construction | 2019 |
| GCC Supporters Club Ltd | Arts & recreation | 2023 |
| GCL Truckwash Ltd | Wholesale & retail | 2019 |
| GCX Global Limited | Information & communication | 2026 |
| GDC Auto Solutions Ltd | Wholesale & retail | 2015 |
| GE (Whitefield) Holdings Limited | Households | 2025 |
| GE (Whitefield) Limited | Financial services | 2016 |
| Geek BOY Music Ltd | Arts & recreation | 2025 |
| Geelan CIC | Construction | 2024 |
| Gefilte Fish Ltd | Real estate | 2022 |
| Gemma K Wall Limited | Health & social care | 2018 |
| Gemma Mercer Ltd | Health & social care | 2025 |
| Gemma Wall Limited | Health & social care | 2020 |
| Gems and Pearls Ltd | Manufacturing | 2020 |
| Gender-Ed Training & Consultancy Ltd | Education | 2021 |
| General Allied Properties Limited | Real estate | 1995 |
| Gentlemen of the Club Ltd | Administrative & support | 2025 |
| Gentlemen Style Ltd | Wholesale & retail | 2020 |
| Genus Consultancy Limited | Water & waste | 2022 |
| Genus Recycling Limited | Water & waste | 2020 |
| Genus Trading Limited | Water & waste | 2004 |
| George Busch Carpentry Limited | Manufacturing | 2019 |
| George Fisher Limited | Wholesale & retail | 1989 |
| Georgian Gates and Railings Limited | Manufacturing | 2010 |
| Georgian Hospitality Group Ltd | Hospitality | 2024 |
| Georgian Wines Distribution Ltd | Wholesale & retail | 2024 |
| Georgina Sheridan Limited | Professional & scientific | 2024 |
| GEP Retail Consultants Limited | Other services | 2011 |
| German Talent Solutions Ltd | Other services | 2018 |
| GES Services Limited | Transport & logistics | 2017 |
| GET Fixed 24/7 Ltd | Extraterritorial | 2024 |
| GET Suitable Limited | Information & communication | 2026 |
| Getthistee Limited | Wholesale & retail | 2018 |
| Getyourcreamon.Com Ltd | Wholesale & retail | 2023 |
| GFA Sameday Couriers Ltd | Transport & logistics | 2021 |
| Gfic Holdings Ltd | Professional & scientific | 2022 |
| Gfic Investments Ltd | Professional & scientific | 2022 |
| Gfic Properties Ltd | Real estate | 2022 |
| GG Bakes Limited | Hospitality | 2023 |
| GGI Commercial Retrofit Limited | Professional & scientific | 2025 |
| GGI Properties & Developments Limited | Professional & scientific | 2021 |
| Ghallab Hub Ltd | Wholesale & retail | 2025 |
| Ghani Properties Ltd | Real estate | 2025 |
| Ghanj Supreme Ltd | Hospitality | 2019 |
| GHW Solicitors LLP | | 2012 |
| Gia's Online Ltd | Wholesale & retail | 2022 |
| Gibbons Construction Management Limited | Construction | 2016 |
| Gibson Funeralcare Limited | Other services | 2010 |
| Gielab Ltd | Professional & scientific | 2014 |
| GIF Digital UK Limited | Wholesale & retail | 2025 |
| Giganto Construction Limited | Construction | 2019 |
| Giltech Engineering Limited | Professional & scientific | 1996 |
| Gincross Limited | Information & communication | 2021 |
| Giraffe Controls Limited | Manufacturing | 2022 |
| Giraffico Creative Studio Ltd | Information & communication | 2026 |
| GK Builders AIB Ltd | Construction | 2021 |
| GK Construction NW Ltd | Construction | 2026 |
| Glace Fruits Distributors Limited | Wholesale & retail | 1998 |
| Glamsa Ltd | Wholesale & retail | 2021 |
| Glancy Forensic Accountants Limited | Professional & scientific | 2011 |
| Glas-Craft (U.K.) Limited | Manufacturing | 1988 |
| Gleeam Limited | Real estate | 2024 |
| Glen Avenue Management Company Limited | Households | 1977 |
| Glenborough Limited | Professional & scientific | 2008 |
| Glendale Scaffolding (NW) Ltd | Wholesale & retail | 2010 |
| Glendaragh RTM Company Limited | Households | 2010 |
| Gleneagles Lettings Limited | Real estate | 2021 |
| Glengarry Consulting Limited | Professional & scientific | 2015 |
| Glenkeil Limited | Professional & scientific | 2020 |
| Glenn Pearson CFO Limited | Professional & scientific | 2022 |
| Global Brickwork North West Limited | Construction | 2023 |
| Global Cellars Limited | Professional & scientific | 2026 |
| Global Enforcement Solutions Ltd | Administrative & support | 2010 |
| Global Isocyanates Limited | Professional & scientific | 1996 |
| Global Policing Limited | Public administration | 2015 |
| Global Snacks Ltd | Wholesale & retail | 2019 |
| Global Sweets Ltd | Hospitality | 2024 |
| Global Traders Ltd | Wholesale & retail | 2018 |
| Global Worldwide Retailers Limited | Wholesale & retail | 2025 |
| Global Xpress NW Ltd | Transport & logistics | 2022 |
| Globalprestigeproducts Ltd | Wholesale & retail | 2026 |
| Globo Trades Ltd | Wholesale & retail | 2016 |
| Gloch Productions Ltd | Arts & recreation | 2024 |
| Glovolt Electrical Services Ltd | Extraterritorial | 2026 |
| Glow and Flow Gibson Aesthetics Ltd | Other services | 2025 |
| Glow Loop Ltd | Wholesale & retail | 2025 |
| Glow Under Ltd | Manufacturing | 2025 |
| Glow UP Hair & Beauty Ltd | Other services | 2019 |
| Gloz Signs Ltd | Wholesale & retail | 2024 |
| GLP (Bury) LLP | | 2023 |
| GLP (Manchester) LLP | | 2008 |
| GLP Legal Management Limited | Professional & scientific | 2004 |
| GLS Send Ltd | Education | 2021 |
| Glyn-Y-Weddw Estate Management Company Limited | Real estate | 2023 |
| GM Mods Limited | Wholesale & retail | 2026 |