| Galliford Homes Holdings Limited | Extraterritorial | 1993 |
| Galliford Homes Limited | Extraterritorial | 1963 |
| Galliford Properties Southern Limited | Professional & scientific | 1968 |
| Galliford Southern Limited | Professional & scientific | 1945 |
| Gallington Blythe Limited | Professional & scientific | 2014 |
| Gallo UK Limited | Wholesale & retail | 1980 |
| Gallotech Limited | Wholesale & retail | 1997 |
| Gallovidian Consulting Limited | Professional & scientific | 2023 |
| Gallowgate Consultancy Services Ltd | Professional & scientific | 2023 |
| Galmanhoe Mews Management Company Limited | Households | 2011 |
| Galtpro Ltd | Transport & logistics | 2019 |
| Galtres Estates Ltd | Construction | 2020 |
| Galtres Oak Carpentry Ltd | Manufacturing | 2024 |
| Galtres Oak Ltd | Construction | 2024 |
| Galtres Retreat & Lodge Park Ltd | Hospitality | 2015 |
| Galvin 4 Limited | Administrative & support | 2016 |
| Gama (York) Ltd | Hospitality | 2017 |
| Gamblor UK Ltd | Information & communication | 2023 |
| Gamecrafters' Collective Ltd | Information & communication | 2024 |
| Gamer's Getaway Limited | Wholesale & retail | 2024 |
| Gameswap Limited | Wholesale & retail | 2024 |
| Gammerler Limited | Professional & scientific | 2019 |
| Gangsa Limited | Hospitality | 2009 |
| Gangsa Software Ltd | Information & communication | 2019 |
| Garden Products Retail Ltd | Wholesale & retail | 2019 |
| Garden Weddings Yorkshire Ltd | Hospitality | 2017 |
| Gardener's Lodge Ltd | Hospitality | 2020 |
| Gardeners Harvest Ltd | Administrative & support | 2014 |
| Garendon Park Residents Management Company Ltd | Households | 2022 |
| Garforth Members Limited | Health & social care | 2016 |
| Garland Contractors Limited | Construction | 2025 |
| Garland Family Holdings Ltd | Real estate | 2019 |
| Garnet Terrace 1966 Limited | Extraterritorial | 2015 |
| Garrick Farm Enterprises Ltd | Administrative & support | 2014 |
| Garrington Brown Limited | Professional & scientific | 2020 |
| Garrington Property Limited | Real estate | 2023 |
| Garry Longley Furniture Ltd | Manufacturing | 2014 |
| Garter Limited | Hospitality | 2022 |
| Garth House York Limited | Real estate | 2024 |
| Garth PIG Practice Limited | Professional & scientific | 2015 |
| Garven Estates Limited | Real estate | 2024 |
| Gary Bustard Limited | Arts & recreation | 2019 |
| Gary Hancock Joiner and Building Contractor Ltd | Construction | 2008 |
| Gary Rowland Exceptional Dentistry Limited | Health & social care | 2020 |
| GAS Assessment Services Ltd | Other services | 2022 |
| Gastigers Ltd | Health & social care | 2019 |
| Gastro Health York Ltd | Administrative & support | 2016 |
| Gate and Bar Ltd | Professional & scientific | 2020 |
| Gateaxe Limited | Manufacturing | 2022 |
| Gatenby (Holdings) Limited | Real estate | 2024 |
| Gatenet Ltd | Manufacturing | 2024 |
| Gatesyde Property Ltd | Real estate | 2019 |
| Gateway 2 (York) LLP | | 2023 |
| Gateway Management (Pocklington) Company Ltd | Extraterritorial | 2007 |
| Gateway Manco Ltd | Real estate | 2024 |
| Gateway Specialist Advice Services Limited | Financial services | 2009 |
| Gather&Co Ltd | Education | 2024 |
| Gaudir Enterprise Limited | Hospitality | 2021 |
| Gavin Raitt GAS & Heating Services Ltd | Construction | 2015 |
| GAW Property Ltd | Real estate | 2026 |
| Gawthorne Ltd | Information & communication | 2023 |
| Gazelle Holdings Ltd | Financial services | 2024 |
| Gazelle Leisure Ltd | Financial services | 2024 |
| Gazfi Limited | Arts & recreation | 1989 |
| Gaztech Limited | Information & communication | 2025 |
| Gazzella Limited | Wholesale & retail | 2005 |
| Gazzella Racing Limited | Wholesale & retail | 2003 |
| GB & DF Construction & Maintenance Ltd | Construction | 2023 |
| GB Education & Guardians Ltd | Administrative & support | 2017 |
| GB Electrical Services (York) Ltd | Construction | 2013 |
| GB Industrial Limited | Manufacturing | 2014 |
| GB Power Parts Ltd | Wholesale & retail | 2010 |
| GBI GAS Barrier Installation Ltd | Construction | 2020 |
| GBL Projects (Eight) LLP | | 2013 |
| GBL Projects (Eleven) Ltd | Real estate | 2025 |
| GBL Projects (TEN) Ltd | Real estate | 2023 |
| GBL Projects (Twelve) Ltd | Real estate | 2025 |
| GBR Leadership Ltd | Professional & scientific | 2025 |
| Gbr-Price Assets Limited | Financial services | 2025 |
| Gbr-Price Civil Engineering Limited | Financial services | 2025 |
| Gbr-Price Depot Equipment Limited | Financial services | 2025 |
| Gbr-Price Depot Solutions Limited | Manufacturing | 2009 |
| Gbr-Price Group Limited | Professional & scientific | 2024 |
| Gbr-Price Holdings Limited | Financial services | 2025 |
| Gbr-Price Rail Limited | Professional & scientific | 2016 |
| GC84 Limited | Professional & scientific | 2018 |
| Gclh Ltd | Manufacturing | 2017 |
| GD Pace & Co. Limited | Professional & scientific | 2025 |
| GDC Plumbing and Heating Limited | Construction | 2017 |
| GDL Supplies Limited | Wholesale & retail | 2013 |
| GE Greenland Estate Ltd | Manufacturing | 2024 |
| GEAR4MUSIC (Holdings) PLC | Professional & scientific | 2011 |
| GEAR4MUSIC Limited | Wholesale & retail | 1995 |
| Gearhire Limited | Administrative & support | 2024 |
| Gearserv Limited | Professional & scientific | 2020 |
| Gearworx Limited | Professional & scientific | 2021 |
| Geckolytics Ltd | Information & communication | 2024 |
| GED & Co Ltd | Administrative & support | 2011 |
| GED Ward Promotional Products Limited | Wholesale & retail | 2005 |
| Geekpoint Ltd | Information & communication | 2016 |