| Glazewing Holdings Limited | Financial services | 2021 |
| Glebe Close Residents Management Company Limited | Households | 2001 |
| Glebe Pasture Burnham Deepdale Residents Management Limited | Households | 1990 |
| GLG Private Estates Ltd | Real estate | 2013 |
| GLJ Consulting Limited | Information & communication | 2013 |
| Global Business (Europe) Ltd | Professional & scientific | 2019 |
| Glover Agricultural Contractors Limited | Administrative & support | 2009 |
| Glover Group (EA) Ltd | Administrative & support | 2023 |
| Glover One Limited | Administrative & support | 2011 |
| Glover Road Haulage Limited | Administrative & support | 2008 |
| Glow Lounge the Perfect TAN Ltd | Other services | 2026 |
| Glowmedk Ltd | Health & social care | 2025 |
| Glowmedp Ltd | Health & social care | 2019 |
| Glowmedpt Ltd | Health & social care | 2026 |
| GLW Consultancy Services Ltd | Professional & scientific | 2023 |
| Gmpr Solutions Ltd | Professional & scientific | 2024 |
| GNC Housing (Norfolk) Limited | Construction | 2020 |
| Go to Interiors Limited | Other services | 2021 |
| GOA Taste of India Ltd | Hospitality | 2023 |
| Gobblego Ltd | Hospitality | 2025 |
| Gocertified Electrical Ltd | Manufacturing | 2026 |
| Goddards of Norfolk EOT Limited | Administrative & support | 2022 |
| Goddards of Norfolk Ltd | Wholesale & retail | 2016 |
| Godson Lawal Consultancy Services Ltd | Real estate | 2023 |
| Godwick Developments Ltd | Real estate | 2025 |
| Gold Coast Made Ltd | Manufacturing | 2024 |
| Gold Wood Group Ltd | Real estate | 2023 |
| Golden Key Property Group Ltd | Real estate | 2019 |
| Golden Pheasant Drive Limited | Households | 2016 |
| Golden Scissors 115 Ltd | Other services | 2026 |
| Golden Tree Surgeons Ltd | Agriculture & fishing | 2018 |
| Goldenpath Process Management Ltd | Wholesale & retail | 2012 |
| Goldhome Capital Ltd | Financial services | 2018 |
| Goldpine Asset Management Limited | Other services | 2022 |
| Gomes Repair Limited | Wholesale & retail | 2018 |
| Gone Crabbing Limited | Wholesale & retail | 2009 |
| Goode Vibes Ltd | Real estate | 2025 |
| Goodrich Openmart Ltd | Other services | 2017 |
| Gould Barbers (East Anglia) Limited | Other services | 2016 |
| Gould Barbers Academies Limited | Education | 2021 |
| Gould Barbers Holdings Limited | Financial services | 2022 |
| Gould Barbers Limited | Other services | 2003 |
| Gourmet 5SX Limited | Hospitality | 2021 |
| Gowd Investments Ltd | Real estate | 2023 |
| Gpeas Corporation Limited | Administrative & support | 2018 |
| GR Commerce Ltd | Wholesale & retail | 2024 |
| Grace of Jesus Christ Crusade | Other services | 2010 |
| Gracefield Hotels Limited | Hospitality | 2003 |
| Graham Woods Music Tuition Limited | Education | 2017 |
| Grand Saxon Limited | Financial services | 2008 |
| Grand Saxon Properties Limited | Real estate | 2019 |
| Grandeur Construction Investments Limited | Construction | 2023 |
| Grandfa G Ltd | Manufacturing | 2025 |
| Grania Haigh Psychotherapy Limited | Health & social care | 2026 |
| Granted Social Ltd | Professional & scientific | 2024 |
| Grasslands (Gayton) Ltd | Administrative & support | 2024 |
| Grasslands Fisheries and Leisure Ltd | Agriculture & fishing | 2024 |
| Gratemelt Cheese Grill Ltd | Hospitality | 2026 |
| Gravelhill Investments Limited | Financial services | 2024 |
| Gray Panther Limited | Wholesale & retail | 2007 |
| Grays (Norfolk) Limited | Wholesale & retail | 2022 |
| Great Barn Farm Ltd | Hospitality | 2021 |
| Green Apple Group Ltd | Construction | 2023 |
| Green Events London Limited | Administrative & support | 2010 |
| Green Feather Ltd | Real estate | 2017 |
| Green Lodge Consulting Limited | Professional & scientific | 2012 |
| Green Puffin Limited | Energy | 2014 |
| Green Valley Industrial Supplies EOT Ltd | Administrative & support | 2024 |
| Green Valley Industrial Supplies Limited | Wholesale & retail | 2009 |
| Green World Transport Limited | Transport & logistics | 2016 |
| Greens Developments Limited | Construction | 2013 |
| Greens Property Management Services Limited | Real estate | 2002 |
| Greenyard Frozen UK Limited | Manufacturing | 2002 |
| Greslade Solutions Limited | Wholesale & retail | 2024 |
| Grey Box UK Limited | Other services | 2005 |
| Grey Swan Limited | Information & communication | 2010 |
| Greyfriars (King's Lynn) Management Company Limited | Households | 2020 |
| Grigal Services Ltd | Construction | 2025 |
| Grimblewood Ltd | Hospitality | 2024 |
| Grinik Ltd | Health & social care | 2024 |
| Grint Cottage Limited | Hospitality | 2024 |
| Ground Tech East Anglia Limited | Administrative & support | 2021 |
| Ground Work Gallery Projects CIC | Education | 2022 |
| Groundwork Solutions (Suffolk) Limited | Construction | 2026 |
| GS Clinical Services Limited | Health & social care | 2016 |
| GSD Business Limited | Real estate | 2025 |
| Gsmat Limited | Health & social care | 2025 |
| GT Sixty-Seven Automotive Ltd | Wholesale & retail | 2020 |
| GT40 Enthusiasts Club Limited | Other services | 2002 |
| Gtbt Limited | Administrative & support | 2021 |
| Gurney Seafoods Limited | Wholesale & retail | 2003 |
| Gurr Leake Properties Limited | Real estate | 2018 |
| GUS & Charles Design Limited | Manufacturing | 2018 |
| Gutter Solutions Group Ltd | Other services | 2025 |
| GWS Work Solutions Ltd | Construction | 2025 |
| H Dobson Psychology Ltd | Professional & scientific | 2019 |
| H G Bliss Farms Ltd | Agriculture & fishing | 2012 |
| H H Driving Ltd | Administrative & support | 2025 |
| H. & C. Beart, Limited | Manufacturing | 1932 |
| H.G. KEW (Bank Farm) Limited | Agriculture & fishing | 1964 |