| GM Media Ltd | Professional & scientific | 2025 |
| GM Trans Ltd | Transport & logistics | 2018 |
| GM247 Properties Investment Group Limited | Real estate | 2023 |
| GMR Group Limited | Energy | 2020 |
| GNS Energy Ltd | Manufacturing | 2015 |
| Go BEN Limited | Transport & logistics | 2017 |
| Go BEN Travel Limited | Transport & logistics | 2025 |
| Go Business & Language Services Ltd | Professional & scientific | 2019 |
| Go Drive Tuition Ltd | Education | 2021 |
| Go Taping Ltd | Construction | 2013 |
| GO2 Plumbing and Heating Limited | Construction | 2024 |
| GO2YOU Ltd | Water & waste | 2026 |
| GOD Father Kebab House Ltd | Hospitality | 2024 |
| Godfather Shawarma House Ltd | Hospitality | 2025 |
| Goksu Ltd | Hospitality | 2025 |
| Golazzo Limited | Extraterritorial | 2022 |
| Gold Standard Footcare Lancashire Limited | Health & social care | 2016 |
| Gold Strategy Consulting Ltd | Professional & scientific | 2024 |
| Golden Heart Connections CIC | Health & social care | 2026 |
| Golden Stitch Atelier Limited | Wholesale & retail | 2026 |
| Goldensmiths Ltd | Wholesale & retail | 2023 |
| Goldenstar Chinese Takeaway Ltd | Hospitality | 2025 |
| Goldmost Limited | Professional & scientific | 2024 |
| Golocal Pemberton Ltd | Wholesale & retail | 2025 |
| Golocalextra WIG Limited | Wholesale & retail | 2025 |
| Gomax Travel Ltd | Transport & logistics | 2025 |
| Good Binary Ltd | Information & communication | 2011 |
| Good Events Ltd | Arts & recreation | 2015 |
| Goodier Properties Ltd | Real estate | 2022 |
| Goodlad Developments Limited | Real estate | 2019 |
| Goodwill Home Treasures Limited | Wholesale & retail | 2025 |
| Gooey Creation Ltd | Wholesale & retail | 2026 |
| Gordons Industrial Gases Ltd | Manufacturing | 2022 |
| Gorses Commercial Services Limited | Construction | 2015 |
| GOT 2 Go Travel Limited | Administrative & support | 2008 |
| GP Financial Services North West Ltd | Financial services | 2015 |
| GPD Fleet Services N/W Limited | Other services | 2019 |
| GPS Construction Ideas Limited | Professional & scientific | 2017 |
| Gp’S Flooring & Furniture Ltd | Wholesale & retail | 2021 |
| GQ Investments Ltd | Real estate | 2016 |
| GR Building Contractors Limited | Construction | 2016 |
| Grace Alex Transport Limited | Transport & logistics | 2021 |
| Grace Fountain Church Limited | Other services | 2002 |
| Grace Tabernacle Press Play CIC | Public administration | 2026 |
| Gracie's Getaways Limited | Real estate | 2024 |
| Graco Management Ltd | Real estate | 2026 |
| Grad Development Ltd | Administrative & support | 2020 |
| Gradely Aviation LLP | | 2023 |
| Grady Ltd | Health & social care | 2023 |
| Grady Pointing Specialists Ltd | Construction | 2025 |
| Graft Communications Ltd | Professional & scientific | 2017 |
| Grahams Mini Travel Ltd | Transport & logistics | 2017 |
| Grand Analysis Ltd | Professional & scientific | 2026 |
| Grand Hotel (Wigan) Limited | Hospitality | 1962 |
| Grand Lettings Ltd | Real estate | 2024 |
| Grand News NW Ltd | Wholesale & retail | 2025 |
| Grande Realty Limited | Households | 2024 |
| Grant PUB Management Limited | Hospitality | 2023 |
| Graola Ltd | Real estate | 2020 |
| Graphene Properties Ltd | Real estate | 2021 |
| Grassrooots Guardians CIC | Education | 2025 |
| Gravexa Constructions Limited | Construction | 2026 |
| Gray's Exterior Cleaning Specialists Ltd | Administrative & support | 2022 |
| Grayson Wealth Ltd | Extraterritorial | 2025 |
| Grayton Property Company Ltd | Households | 2024 |
| Grayton Real Estate Limited | Real estate | 2024 |
| Grayway Coaches Limited | Extraterritorial | 2008 |
| Grayway of Wigan Limited | Extraterritorial | 2008 |
| Great British Drum Company Ltd | Manufacturing | 2015 |
| Great Gaminguk Ltd | Wholesale & retail | 2022 |
| Great Wall Property Ltd | Real estate | 2020 |
| Greater Manchester 247 Properties Limited | Real estate | 2019 |
| Greater Manchester Fire Doors Maintenance and Inspections Ltd | Construction | 2017 |
| Greater Manchester Primary Care C.I.C. | Health & social care | 2021 |
| Greatwave Cleaning Services Limited | Administrative & support | 2018 |
| GRECCO37 Limited | Transport & logistics | 2016 |
| Greek Grill Wigan Ltd | Hospitality | 2026 |
| Green Cardamom Ltd | Hospitality | 2022 |
| Green Civils Ltd | Administrative & support | 2023 |
| Green Crew Community Interest Company | Education | 2013 |
| Green Door Electrical Services Limited | Construction | 2025 |
| Green Energy Nationwide Ltd | Energy | 2022 |
| Green Glow International Ltd | Professional & scientific | 2024 |
| Green Group Logistics Ltd | Transport & logistics | 2019 |
| Green Office Services Ltd | Professional & scientific | 2022 |
| Green Probate Services Limited | Administrative & support | 2017 |
| Green Roofing Systems Limited | Construction | 2026 |
| Green Room Creative Productions Ltd | Arts & recreation | 2013 |
| Green Shield (NW) Ltd | Construction | 2022 |
| Green Space Revival Ltd | Construction | 2020 |
| Green's Carpets Limited | Wholesale & retail | 1979 |
| Greenacre Builders Limited | Real estate | 2003 |
| Greenacre Developments North West Limited | Construction | 2016 |
| Greendale Field Maintenance Limited | Administrative & support | 2004 |
| Greener Wastere Recycling Ltd | Financial services | 2025 |
| Greenex Electrical Limited | Construction | 2025 |
| Greenfield Farm Limited | Agriculture & fishing | 2001 |
| Greenford Bespoke Ltd | Manufacturing | 2025 |
| Greenhalgh Kerr Solicitors Limited | Professional & scientific | 2011 |
| Greenhart Enterprises Limited | Extraterritorial | 2016 |