| Framework One Limited | Extraterritorial | 2014 |
| Fray Network Limited | Professional & scientific | 2010 |
| Frith Safety Ltd | Professional & scientific | 2024 |
| Frost Associates Limited | Professional & scientific | 2019 |
| Funtime Leisure and Entertainment Limited | Wholesale & retail | 2013 |
| Fyfield Estates Limited | Agriculture & fishing | 1942 |
| G and M Norfolk Ltd | Construction | 2025 |
| G C Wood Ltd | Agriculture & fishing | 2022 |
| G&A Accountants Ltd | Professional & scientific | 2016 |
| G.G. Freezer & SON Ltd. | Construction | 2000 |
| G.W. Machin and SON Limited | Agriculture & fishing | 1984 |
| Gameplan Performance (Brand) Limited | Administrative & support | 2025 |
| Gameplan Performance (UK Trading) Limited | Administrative & support | 2025 |
| Gameplan Performance Limited | Administrative & support | 2025 |
| Gapeway Limited | Real estate | 1983 |
| Garner Stove Services Ltd | Construction | 2011 |
| GB Paving and Landscaping Ltd | Administrative & support | 2022 |
| GCH Property Group Limited | Real estate | 2018 |
| Ge-Be Transport Limited | Transport & logistics | 2000 |
| Genco 2018 LLP | | 2018 |
| George and Russell Ltd | Hospitality | 2022 |
| GFP Development and Maintenance Ltd | Construction | 2024 |
| GH Stunts Limited | Real estate | 2012 |
| Ghost Technology Development Ltd | Professional & scientific | 2025 |
| Gibson Lanley Limited | Construction | 2015 |
| Gladd Developments Ltd | Real estate | 2024 |
| Global First Media Limited | Information & communication | 2023 |
| Global Outdoor Trading Limited | Administrative & support | 2022 |
| Global Trauma Rescue Ltd | Manufacturing | 2019 |
| Go-Bright Exterior Cleaning Limited | Administrative & support | 2026 |
| GO2 Competitions Ltd | Arts & recreation | 2019 |
| Goodrick Place Limited | Households | 2014 |
| Goward's Funeral Services Limited | Other services | 2003 |
| GPC Dynamics Ltd | Professional & scientific | 2014 |
| Grademore Limited | Administrative & support | 1995 |
| Graphite Batteries Ltd | Manufacturing | 2024 |
| Graphtect Limited | Manufacturing | 2024 |
| Green Cat Food Limited | Extraterritorial | 2010 |
| Green Dog Food Limited | Extraterritorial | 2015 |
| Green Pantry Limited | Extraterritorial | 2015 |
| Green Parrot Coffee Limited | Hospitality | 2024 |
| Grenefolc Ltd | Information & communication | 2017 |
| Group of Humans Limited | Administrative & support | 2017 |
| Grumpy Site Services Ltd | Construction | 2022 |
| Guideme Guideyou Ltd | Information & communication | 2010 |
| Gunapp Ltd | Information & communication | 2021 |
| Gunhub Ltd | Professional & scientific | 2021 |
| H & B Music Limited | Manufacturing | 2012 |
| H and S Carpentry Limited | Construction | 2009 |
| H L K Services Limited | Wholesale & retail | 2004 |
| Hadbourne Limited | | 1989 |
| Hair Oasis Limited | Other services | 2023 |
| Hall Property Rentals Limited | Real estate | 2021 |
| Halo Skip Hire Limited | Water & waste | 2025 |
| Halo Waste Management Limited | Water & waste | 2025 |
| Hamilton Blake Group Limited | Professional & scientific | 2023 |
| Hamilton Blake Limited | Professional & scientific | 2006 |
| Hardy Agronomy Ltd | Agriculture & fishing | 2023 |
| Harriet Sloan Coaching Ltd | Professional & scientific | 2022 |
| Harrison Heating (Norfolk) Limited | Construction | 2021 |
| Harts Norfolk Ltd | Transport & logistics | 2021 |
| Harvey Independent Ltd | Transport & logistics | 2025 |
| Harvey's Cleaning & Detailing Services Limited | Administrative & support | 2023 |
| Hastings Beach House Ltd | Hospitality | 2022 |
| Hawfinch Housing Limited | Real estate | 2025 |
| Haworth Consulting Limited | Professional & scientific | 2008 |
| Health & Beauty Enterprises Limited | Other services | 2006 |
| Heart of History Limited | Administrative & support | 2017 |
| Henderson Mortgage Solutions Ltd | Financial services | 2019 |
| Hengest & Horsa Ltd | Manufacturing | 2012 |
| Highland Holiday Caravans Limited | Other services | 2022 |
| Highland Park Homes Limited | Other services | 2022 |
| Highwood Property Ltd | Manufacturing | 2018 |
| Hilltop Building Limited | Construction | 2007 |
| HJ & Associates Limited | Professional & scientific | 2018 |
| HK Swaffham Ltd | Hospitality | 2019 |
| HLM Services Ltd | Administrative & support | 2023 |
| HM1958 Limited | Manufacturing | 2015 |
| Hoggies Ltd | Hospitality | 2019 |
| Holm Oak Gardens Residents Limited | Real estate | 2009 |
| Home-Start Norfolk | Health & social care | 2004 |
| Hops Organic Tea & Coffee Limited | Hospitality | 2026 |
| Horseshoe Cottage (Pentney) Limited | Real estate | 2022 |
| Hortico Ltd | Other services | 2013 |
| House Jewels Events Limited | Information & communication | 2022 |
| House Share UK Limited | Households | 2015 |
| Huggable Heroes Limited | Extraterritorial | 2015 |
| Humm and SON Construction Limited | Construction | 2019 |
| Hummel Holdings Limited | Financial services | 2024 |
| Hunstanton Dental Laboratory Limited | Health & social care | 2013 |
| Hunstanton Ice Cream Company Limited | Wholesale & retail | 2015 |
| Hutton Developments Limited | Construction | 2015 |
| Hutton Grove Property Limited | Construction | 2017 |
| Hydrogen Hybrid Electric Propulsion Systems Limited | Manufacturing | 2021 |
| Hydrogen Storage Systems Limited | Manufacturing | 2021 |
| Hydroxy Generation Ltd | Manufacturing | 2022 |
| Hypericon Limited | Information & communication | 2017 |
| I C H Builders Limited | Construction | 2002 |
| Ibducon Properties & Development Co Limited | Real estate | 1971 |
| ICECREAMS2U Ltd | Hospitality | 2021 |