| Gabble Software Limited | Extraterritorial | 2011 |
| Gabijan Ltd | Public administration | 2026 |
| Gables Radiology Limited | Health & social care | 2023 |
| Gablet Limited Liability Partnership | | 2009 |
| Gabriel Jennings Film Services Ltd | Construction | 2020 |
| Gabriel Sivoglo (2020) Limited | Health & social care | 2020 |
| Gabryel Transexpress Ltd | Transport & logistics | 2020 |
| Gabrymic Limited | Professional & scientific | 2022 |
| Gaby Cleaning & Removing Ltd | Construction | 2026 |
| GAC Architecture Ltd | Professional & scientific | 2020 |
| GAC Building Services Engineers Ltd | Professional & scientific | 2015 |
| GAC Environmental Limited | Construction | 2011 |
| GAC Environmental Trustees Limited | Administrative & support | 2022 |
| Gadget Express Limited | Wholesale & retail | 2011 |
| Gadgets & Tech Ltd | Wholesale & retail | 2024 |
| Gadge’S Homebargins Ltd | Wholesale & retail | 2023 |
| Gadhia Investments Limited | Real estate | 2018 |
| Gadpack Limited | Administrative & support | 1991 |
| Gadry & Nathaniel Limited | Health & social care | 2024 |
| Gadsby Gallagher Properties Ltd | Real estate | 2020 |
| Gaec Limited | Real estate | 2018 |
| GAF Construction Recruitment Limited | Construction | 2018 |
| Gaffer John Limited | Administrative & support | 2012 |
| Gafs EXC Travel Ltd | Transport & logistics | 2019 |
| Gaggas UK Ltd | Other services | 2018 |
| Gaia Aesthetics Limited | Other services | 2022 |
| Gaia Independent Advisory Ltd | Professional & scientific | 2021 |
| Gain Diaspora Limited | Other services | 2015 |
| Gainsborough Holdings Limited | Real estate | 2024 |
| Gajree Risk Consultancy Group Limited | Professional & scientific | 2025 |
| GAL1 Enterprises Limited | Financial services | 2024 |
| Gala Property Services Ltd | Real estate | 2023 |
| Gala Student Developments Ltd | Construction | 2018 |
| Galata Restaurant Ltd | Hospitality | 2025 |
| Galaxy Property Limited | Real estate | 2017 |
| Galaxy Smiles Ltd | Health & social care | 2026 |
| Gale Force Nine Ltd | Administrative & support | 2009 |
| Galemire Ltd | Hospitality | 2022 |
| Galery Market Ltd | Information & communication | 2023 |
| GALEXA2020 Ltd | Wholesale & retail | 2020 |
| Galiot Homes Limited | Construction | 2025 |
| Gallant Building Services Limited | Construction | 2000 |
| Gallant Financial Services Limited | Financial services | 1988 |
| Gallery Management Company (the Park) Limited | Real estate | 2003 |
| Gama Accounts Services Ltd | Professional & scientific | 2022 |
| Gama Group Investments Ltd | Real estate | 2020 |
| Gamage Engineering Ltd | Professional & scientific | 2016 |
| Gamage Ventures Ltd | Wholesale & retail | 2022 |
| Gamble Consulting Limited | Real estate | 2001 |
| Gamblin Consultancy Limited | Professional & scientific | 2019 |
| Game Engineering Projects Limited | Professional & scientific | 2001 |
| Game of Lions Limited | Hospitality | 2023 |
| Gamechap Ltd | Information & communication | 2012 |
| Games Workshop Group PLC | Financial services | 1991 |
| Games Workshop Interactive Limited | Manufacturing | 2001 |
| Games Workshop International Limited | Manufacturing | 1994 |
| Games Workshop Limited | Manufacturing | 1979 |
| Games Workshop Step One Limited | Information & communication | 2020 |
| Games Workshop Trustee Limited | Manufacturing | 1999 |
| Games Workshop US (Holdings) Limited | Manufacturing | 2002 |
| Games Workshop US Limited | Manufacturing | 2010 |
| Gameshaven Catering Limited | Hospitality | 2024 |
| Gameshaven Events Limited | Hospitality | 2025 |
| Gameshaven Retail Limited | Wholesale & retail | 2024 |
| Gamesnightuk Ltd | Information & communication | 2023 |
| Gamex Plus Technologies Limited | Manufacturing | 2023 |
| Gami Properties Limited | Real estate | 2025 |
| Gancet+ Limited | Professional & scientific | 2005 |
| Ganesh Holdings (RK) Ltd | Professional & scientific | 2013 |
| Ganesh Tours & Travels Ltd | Transport & logistics | 2025 |
| Ganesha Pharma Ltd | Wholesale & retail | 2026 |
| Ganeve Ltd | Wholesale & retail | 2020 |
| Gangsta Wraps Official Ltd | Manufacturing | 2019 |
| Gannet Limited | Manufacturing | 1997 |
| Gants Fabrications Ltd | Manufacturing | 2012 |
| Gantu & Muku Ltd | Hospitality | 2026 |
| GAP Property Group Ltd | Real estate | 2025 |
| Gapauto Limited | Wholesale & retail | 2021 |
| Garage Hive Fleet Technologies Ltd | Wholesale & retail | 2024 |
| Garage Services (Nottingham) Limited | Wholesale & retail | 2007 |
| Garam Masala (Nottingham) Limited | Hospitality | 2025 |
| Garatie Houseshares Limited | Real estate | 2022 |
| Garbis Limited | Health & social care | 2025 |
| Garden Alchemy Limited | Professional & scientific | 2009 |
| Garden Cafe Nottingham Limited | Hospitality | 2020 |
| Garden Furniture Nottingham Ltd | Manufacturing | 2019 |
| Garden Hill View Ltd | Real estate | 2008 |
| Garden House Apartments Residents Management Limited | Real estate | 2001 |
| Garden Party Hire Limited | Administrative & support | 2013 |
| Garden Reach Ltd | Construction | 2022 |
| Garden Rooms to Go Ltd | Construction | 2024 |
| Gardeners Developments Ltd | Construction | 2022 |
| Gardenia Grove Management Company Limited | Real estate | 2026 |
| Gardens and Landscapes Mowing Ltd | Manufacturing | 2014 |
| Gardens by Joseph (Retail) Limited | Wholesale & retail | 2021 |
| Gardens of Inspiration Limited | Administrative & support | 2007 |
| Garfield & Co Developments Ltd | Construction | 2024 |
| Garfoot Holdings Ltd | Real estate | 2025 |
| Gari FC Ltd | Wholesale & retail | 2025 |
| Garibaldi Data Services Limited | Information & communication | 2023 |