| Golf ONE8 Ltd | Manufacturing | 2023 |
| Gooch Accident Repair Centre Limited | Wholesale & retail | 2003 |
| Gooch Motors (Lowestoft) Limited | Transport & logistics | 1963 |
| Good Little Cars Limited | Wholesale & retail | 2025 |
| Goodings Builders (East Anglia) Limited | Construction | 2008 |
| Goodings Finance Ltd | Financial services | 2026 |
| Goodwin Cowley (Holdings) Limited | Financial services | 2024 |
| Goodwin Cowley (Properties) Limited | Real estate | 2024 |
| Goodwin Cowley Limited | Professional & scientific | 2015 |
| Gosford Road MOT & Service Centre Ltd | Wholesale & retail | 2025 |
| GR8 Media Limited | Information & communication | 2018 |
| Gradient Wills and Estates Limited | Professional & scientific | 2010 |
| Graham Nourse Planning Consultants Limited | Professional & scientific | 2015 |
| Grandview Realtors Ltd | Real estate | 2024 |
| Grants Groundworks & Construction Ltd | Construction | 2021 |
| Graphic Solutions (East Anglia) Ltd | Manufacturing | 2023 |
| Graphitas Limited | Information & communication | 1998 |
| Graylings Properties Limited | Real estate | 2025 |
| Great Yarmouth Aggregates Limited | Wholesale & retail | 2021 |
| Green Jack Brewing Company Limited | Manufacturing | 2008 |
| Green Jack Inns Ltd | Hospitality | 2006 |
| Greenfields Local Ltd | Wholesale & retail | 2019 |
| Greenleaves Homecare Services Limited | Other services | 2017 |
| Greenleaves Property Management Limited | Real estate | 2023 |
| Greenlight Prescribing Services Ltd | Health & social care | 2025 |
| Greenstar Energy Limited | Construction | 2018 |
| Greenwave Care Consultancy Ltd | Professional & scientific | 2025 |
| Greetland (Global) Limited | Professional & scientific | 2020 |
| Grenergie Advisory Ltd | Professional & scientific | 2024 |
| Gresham (Lowestoft) Management Company Limited | Households | 2017 |
| Griffin Electrical Installations Ltd | Construction | 2023 |
| Grimmer Bespoke Garden Rooms Ltd | Construction | 2022 |
| GRO Accountants Limited | Extraterritorial | 2025 |
| GRO Holdings Limited | Financial services | 2025 |
| Groomtastic Dog Spa Ltd | Other services | 2026 |
| Groovy Tots Limited | Administrative & support | 2019 |
| Group Storage & Reclaim Limited | Transport & logistics | 2019 |
| Grove Construction Services Ltd | Construction | 2023 |
| Grove Drilling Limited | Mining & quarrying | 2024 |
| Grove Infrastructure Limited | Construction | 2016 |
| Growing Theatre CIC | Arts & recreation | 2022 |
| GRW Offshore Consultancy Ltd | Professional & scientific | 2026 |
| GS Pro Clean Limited | Administrative & support | 2023 |
| GSC Freight Ltd | Transport & logistics | 2014 |
| GSE OIL and GAS Ltd | Professional & scientific | 2019 |
| GUL Hire Ltd | Transport & logistics | 2025 |
| Guys Carpets (East Anglia) Limited | Construction | 2003 |
| GVS Limited | Other services | 1978 |
| Gym X Software Ltd | Information & communication | 2021 |
| Gymnastics in Cardiff CIC | Education | 2023 |
| H Crowe Ltd | Manufacturing | 2025 |
| H Gissing Electrical Ltd | Construction | 2015 |
| H N J Ltd | Real estate | 2022 |
| H.G. Hannant Limited | Wholesale & retail | 1955 |
| H2 Security & Fire Limited | Construction | 2022 |
| Haijahr Limited | Information & communication | 2024 |
| Hair Station-Trading AS One Ltd | Other services | 2003 |
| HAJ Spice Lowestoft Ltd | Hospitality | 2022 |
| Hale Brothers Renovations Limited | Construction | 2020 |
| Hall Safety & Environmental Limited | Professional & scientific | 2008 |
| Halliday MPD Services Ltd | Mining & quarrying | 2025 |
| Halsdad Ltd | Wholesale & retail | 2024 |
| Hamble Property Investments Ltd | Real estate | 2006 |
| Hammersley Contractors General Builders Ltd | Construction | 2022 |
| Hampshire's Finest Limited | Wholesale & retail | 2011 |
| Hancock's Sunnydene Ltd | Hospitality | 2022 |
| Happiness Events Limited | Other services | 1990 |
| Happy Build Paving and Construction Ltd | Construction | 2020 |
| Happy WOK 2026 Ltd | Hospitality | 2026 |
| Harbour and Yacht's View RTM Company Limited | Households | 2022 |
| Harbour Pubs Limited | Hospitality | 2014 |
| Harper Engineering Limited | Construction | 2018 |
| Harpers Construction Ltd | Construction | 2024 |
| Harrington Electrical Limited | Administrative & support | 2016 |
| Harrod UK Group Limited | Financial services | 2019 |
| Harrod UK Limited | Manufacturing | 1966 |
| Harry Creative Ltd | Information & communication | 2024 |
| Hashtag Coaching Ltd | Arts & recreation | 2025 |
| Hasochaso Health & Wellbeing Ltd | Health & social care | 2022 |
| HAT Scaffolding Ltd | Construction | 2023 |
| Hayden Bishop Ltd | Mining & quarrying | 2024 |
| Haylock Mushrooms Limited | Agriculture & fishing | 2016 |
| Haynings Garage Limited | Wholesale & retail | 2020 |
| Hayward United Farmers Limited | Wholesale & retail | 1984 |
| HBC Enterprise Limited | Health & social care | 2025 |
| HBC Holding Suffolk Ltd | Health & social care | 2025 |
| HBH Consultants Limited | Professional & scientific | 2024 |
| HC East Properties Limited | Real estate | 2022 |
| HDN Financial Services Ltd | Professional & scientific | 2023 |
| Hdpg Ltd | Construction | 2020 |
| Healthrx Ltd | Public administration | 2018 |
| Healthy Minds Agency Ltd | Hospitality | 2025 |
| Hearty Health Care Ltd | Health & social care | 2023 |
| Heathland Beach Clubhouse Limited | Hospitality | 2025 |
| Heatservuk Ltd | Construction | 2024 |
| Heavy Lifting Services Limited | Administrative & support | 2011 |
| Heighten Health Ltd | Health & social care | 2025 |
| Helen Pybus Retreats Ltd | Health & social care | 2024 |
| Helen Youngman Education Limited | Education | 2015 |
| Help at Home Care Suffolk Ltd | Health & social care | 2022 |