| Good Running Events Ltd | Transport & logistics | 2020 |
| Goose Green Motors Ltd | Wholesale & retail | 2021 |
| Goquote Ltd | Information & communication | 2025 |
| GP William Services Ltd | Real estate | 2020 |
| Grange Applied Technology Ltd | Information & communication | 2024 |
| Grange Automotive Ltd | Wholesale & retail | 2024 |
| Grange Motorsport Ltd | Wholesale & retail | 2022 |
| Green Forest Adventures Limited | Financial services | 2025 |
| Greenstone Property Solutions Limited | Professional & scientific | 2017 |
| Grih Property Management Ltd | Real estate | 2025 |
| Groundcontrol Photography Ltd | Professional & scientific | 2021 |
| GRR Farm Services Ltd | Agriculture & fishing | 2017 |
| GT Products Limited | Wholesale & retail | 2025 |
| Guardian Highways Group Ltd | Construction | 2025 |
| H and F Developments (Norfolk) Ltd | Construction | 2019 |
| Halberd Engineering Limited | Professional & scientific | 2014 |
| Halford House Management Company Limited | Households | 2011 |
| Hall Services (East Anglia) Ltd | Construction | 2012 |
| Hallaway Psychology Ltd | Health & social care | 2026 |
| Halls Property Maintenance Ltd | Other services | 2025 |
| Hamsard 3702 Limited | Financial services | 2022 |
| Hansa Parts (UK) Ltd | Wholesale & retail | 2024 |
| Happy Valley Opco Limited | Hospitality | 2023 |
| Harben Limited | Construction | 1994 |
| Harlandslandscaping Ltd | Administrative & support | 2021 |
| Harmony Rentals Ltd | Real estate | 2025 |
| Harrods of Hingham Arts and Crafts CIC | Wholesale & retail | 2025 |
| Harvey Opco Limited | Hospitality | 2023 |
| Hasbon Racing Ltd | Administrative & support | 2025 |
| Hasguard Cross Opco Limited | Hospitality | 2023 |
| Haveringland Hall Coach House Opco Limited | Hospitality | 2023 |
| Haveringland Hall Opco Limited | Hospitality | 2023 |
| Haynes & Frost Limited | Construction | 2016 |
| Hazelby Evans Developments Ltd | Real estate | 2017 |
| Hazelby-Evans Energy Ltd | Real estate | 2026 |
| Hazler Developments Ltd | Real estate | 2025 |
| HD E-Commerce Ltd | Wholesale & retail | 2026 |
| Hello Home Mortgages Ltd | Financial services | 2025 |
| Helwell Bay Opco Limited | Hospitality | 2023 |
| Hera Import Export Limited | Hospitality | 2023 |
| Heritage Fine Dining Limited | Hospitality | 2002 |
| Heritage Lounge Limited | Hospitality | 2019 |
| Hewlett Properties Ltd | Real estate | 2024 |
| HEY HEY Twenty Ltd | Wholesale & retail | 2010 |
| Hide Leather Restorations Limited | Other services | 2005 |
| Hilary & Alice Interiors Ltd | Wholesale & retail | 2022 |
| Hilary & Alice Limited | Other services | 2016 |
| Hilary&Alice Workshop Limited | Other services | 2017 |
| Hiltfields (Processing) Limited | Extraterritorial | 1991 |
| Hiltfields Ingredients Limited | Extraterritorial | 2000 |
| Hilton Heating (Norfolk) Ltd | Construction | 2022 |
| Hingham Gates Engineering Limited | Professional & scientific | 2020 |
| Hingham Gates Limited | Manufacturing | 2015 |
| Hippo Tankers Ltd | Water & waste | 2024 |
| Holbrook Group Holdings Ltd | Financial services | 2015 |
| Holly Barn Bakes Limited | Manufacturing | 2024 |
| Homecare Landscaping Limited | Administrative & support | 2020 |
| Hooper Coles Consulting Ltd | Professional & scientific | 2024 |
| Horizon Wealth Consultancy Limited | Financial services | 2019 |
| House of Flavour Attleborough Ltd | Hospitality | 2025 |
| Howsen Browne Ltd | Hospitality | 2025 |
| HRM Boilers Limited | Manufacturing | 2001 |
| Hugh Wright Ltd | Professional & scientific | 1998 |
| Hurlimann Engineering Limited | Professional & scientific | 2015 |
| HVE Limited | Manufacturing | 2003 |
| Hydramec Limited | Manufacturing | 1990 |
| Hydramist Limited | Extraterritorial | 2011 |
| Iceni Magazine Limited | Information & communication | 2013 |
| Iconic Pubs One Limited | Hospitality | 2018 |
| Imagine Labs Ltd | Wholesale & retail | 2025 |
| Imara Stays Ltd | Hospitality | 2026 |
| Independent Employee Ownership Advice Ltd | Professional & scientific | 2025 |
| Insight Sigma Ltd | Professional & scientific | 2025 |
| Integrated Innovation Limited | Administrative & support | 2026 |
| Interguide IOW Holdco Ltd | Financial services | 2023 |
| Interim FM Solutions Limited | Professional & scientific | 2019 |
| International Track Solutions Limited | Arts & recreation | 2012 |
| Invest Mate Limited | Real estate | 2019 |
| IP Moat Ltd | Information & communication | 2023 |
| Ivaley Distribution Ltd | Wholesale & retail | 2026 |
| Ixworth Solar Farming Limited | Energy | 2012 |
| J & F E Hanton Limited | Agriculture & fishing | 2018 |
| J & U Cluster Limited | Wholesale & retail | 2013 |
| J Martin Carpentry Ltd | Construction | 2024 |
| J P Property Associates Ltd | Real estate | 2018 |
| J R T Services Limited | Wholesale & retail | 2023 |
| J W Construction (East Anglia) Limited | Construction | 2006 |
| J&B Fuel Ltd | Wholesale & retail | 2021 |
| Jadelink UK Limited | Real estate | 2003 |
| JAE Heating Solutions Ltd | Construction | 2024 |
| Jasper Bookkeeping Ltd | Professional & scientific | 2024 |
| JCM Cloud Limited | Information & communication | 2019 |
| JD Properties (Norfolk) Ltd | Construction | 2017 |
| Jempm Ltd | Real estate | 2022 |
| JFP Aviation Services Ltd | Transport & logistics | 2012 |
| JG Engineering Services Ltd | Professional & scientific | 2023 |
| JGS Croft Meadow Ltd | Construction | 2022 |
| Jive Pion Ltd | Professional & scientific | 2025 |
| JJB Driving School Ltd | Education | 2024 |
| JLF 99 Ltd | Wholesale & retail | 2016 |