| G & M Ward & Sons Limited | Manufacturing | 2003 |
| G Parker Engineering Limited | Manufacturing | 2023 |
| G Thompson Holdings Ltd | Real estate | 2024 |
| G. O'Donnell Stone Masonry Limited | Manufacturing | 2001 |
| G.M. Fitted Furniture Limited | Manufacturing | 1985 |
| G2 Ultimate Performance Ltd | Wholesale & retail | 2023 |
| GA Communications & Marketing Ltd | Professional & scientific | 2023 |
| Gaffey Group Limited | Financial services | 2025 |
| Gaffey Holdings Limited | Manufacturing | 2017 |
| Gaffey Technical Services Limited | Manufacturing | 2001 |
| Gaffey TS Group Limited | Financial services | 2025 |
| Gallagher Joinery Ltd | Construction | 2022 |
| Gallery Home Furniture Limited | Wholesale & retail | 2024 |
| Gallica Ltd | Real estate | 2020 |
| Gamehero Ltd | Professional & scientific | 2025 |
| Gamers Vault Ltd | Wholesale & retail | 2025 |
| Garage Code Ltd | Information & communication | 2026 |
| Gardner Engineering & Fabrication Ltd | Manufacturing | 2025 |
| Garemha Ltd | Other services | 2026 |
| GAS Plumbing and Heating Solutions Engineers Limited | Other services | 2018 |
| Gaulkthorn Farm (Management) Limited | Real estate | 2008 |
| Gazelle Solutions Ltd | Administrative & support | 2012 |
| GD Beauty Studio Ltd | Education | 2019 |
| Gdandgc Limited | Other services | 2016 |
| Geek Mango Limited | Professional & scientific | 2012 |
| Geekstake Limited | Information & communication | 2014 |
| Geneva Ltd | Wholesale & retail | 2016 |
| Geordie Hummus Ltd | Manufacturing | 2026 |
| George Financial Services Limited | Financial services | 2013 |
| George Watson (Accrington) Limited | Manufacturing | 1951 |
| Geotracking Limited | Transport & logistics | 2020 |
| GET Skilled Ltd | Education | 2025 |
| GET8 Ltd | Wholesale & retail | 2020 |
| GFR Estates Ltd | Real estate | 2018 |
| GHG Group Holdings Ltd | Financial services | 2024 |
| Gift-All Ltd | Wholesale & retail | 2019 |
| Gifto Healthcare Limited | Manufacturing | 2022 |
| Ginn Consultancy Limited | Administrative & support | 2009 |
| Ginncomm Ltd | Other services | 2017 |
| Gisburn Road Launderette Ltd | Other services | 2017 |
| GK Carpentry & Building Services Limited | Manufacturing | 2014 |
| Gkff Ltd | Wholesale & retail | 2018 |
| Glam and Glow UP Ltd | Other services | 2025 |
| Glamour Empire Blackburn Ltd | Wholesale & retail | 2026 |
| Glass Bottle Lights UK Limited | Wholesale & retail | 2021 |
| Glass Skin Ltd | Other services | 2025 |
| Glencoe Doggy Daycare Limited | Other services | 2026 |
| Glencoe Kennels Limited | Other services | 2026 |
| Glensilva Limited | Professional & scientific | 2018 |
| GLM Group Ltd | Wholesale & retail | 2020 |
| Global Architect Alliance Ltd | Information & communication | 2021 |
| Global Chauffers Ltd | Transport & logistics | 2024 |
| Global Hospitality Training Ltd | Other services | 2020 |
| Global Search International Limited | Administrative & support | 2003 |
| Global Sports School International Ltd | Education | 2025 |
| Globalcount Limited | Wholesale & retail | 1999 |
| Globe Bowling & Billiards Club Ltd | Other services | 1935 |
| Globe Enterprises Limited | Construction | 1995 |
| Glory Care Solutions Ltd | Administrative & support | 2019 |
| Glovers Project Services Limited | Professional & scientific | 2001 |
| Glow Side Ltd | Wholesale & retail | 2025 |
| Glow Viva Beauty Ltd | Other services | 2024 |
| Glynn Ward Engineering Ltd | Professional & scientific | 2019 |
| Go Stone Masonry Limited | Manufacturing | 2013 |
| Goget Couriers Ltd | Transport & logistics | 2024 |
| Golden Graphics Limited | Manufacturing | 1999 |
| Golden Razor Barbers PVT Ltd | Other services | 2023 |
| Good Marketing Club Ltd | Professional & scientific | 2024 |
| Gordon Anthony Mortgages Limited | Financial services | 2022 |
| Gosen Group Limited | Real estate | 2018 |
| GP Innovative Solutions Ltd | Information & communication | 2022 |
| GP Total Engagement Ltd | Information & communication | 2022 |
| Grahmar Properties Limited | Real estate | 2010 |
| Granulator Service Ltd | Professional & scientific | 2018 |
| Grasso Locums Limited | Health & social care | 2013 |
| Grateful Company Ltd | Real estate | 2021 |
| Great and Small Forest Education Limited | Education | 2015 |
| Greek Food NW Ltd | Hospitality | 2026 |
| Green Alpha 2 Ltd | Wholesale & retail | 2025 |
| Green Bean Media Ltd | Other services | 2025 |
| Green Bean Production CIC | Information & communication | 2022 |
| Green Grass Ltd | Agriculture & fishing | 2019 |
| Green Mercantile Limited | Professional & scientific | 2024 |
| Greenpod Spaces Limited | Construction | 2023 |
| Greenville Developments Limited | Real estate | 1988 |
| Greenwood Farriers Limited | Other services | 2013 |
| Greenwood Property Services NW Ltd | Real estate | 2019 |
| Greg Westell Limited | Construction | 2002 |
| Gregg Properties Limited | Real estate | 2020 |
| Griffin Sound Ltd | Manufacturing | 2024 |
| Grmc Holdings Limited | Financial services | 2025 |
| Groom & Gather Ltd | Wholesale & retail | 2025 |
| Group 1 PT Limited | Professional & scientific | 2017 |
| Grovefern Estates Ltd | Administrative & support | 2002 |
| Growden Properties Ltd | Construction | 2023 |
| Growing Wild Communities CIC | Education | 2024 |
| Growthclustersuk Limited | Professional & scientific | 2007 |
| GRP Fibreglass Roofing Ltd | Construction | 2025 |
| Grzw Ltd | Professional & scientific | 2025 |
| GS Automotive NW Ltd | Wholesale & retail | 2022 |