| Cushion & Clarke Ltd | Construction | 2024 |
| D J Browne Ltd | Real estate | 2024 |
| D&E Norfolk Developments Ltd | Construction | 2022 |
| D&H Advisory Limited | Professional & scientific | 2015 |
| D. Bewhay (Vacuum & Technical) Limited | Professional & scientific | 1993 |
| D.Knights Plumbing & Heating Ltd | Other services | 2013 |
| D.L. Ritchie (Laurels) Limited | Agriculture & fishing | 1964 |
| DAN Cubitt Building Services Ltd | Construction | 2021 |
| DAN Duchars Limited | Professional & scientific | 2011 |
| Danesh Commercial Investments Ltd | Real estate | 2026 |
| Daniels Aggregates Limited | Administrative & support | 2020 |
| Daniels Transport Group Ltd | Transport & logistics | 2018 |
| David Youngs Limited | Wholesale & retail | 2002 |
| DBC Composites Ltd | Manufacturing | 2026 |
| DC Solar Installations Ltd | Construction | 2023 |
| Digest UK Limited | Water & waste | 2009 |
| Dilham Hall Canoe Hire Ltd | Administrative & support | 2022 |
| Dilham Hall Ltd | Agriculture & fishing | 2019 |
| Dilman Norfolk Ltd | Agriculture & fishing | 1990 |
| Divided by 4 Ltd | Real estate | 2026 |
| Divine Building Services Limited | Construction | 2020 |
| Divine Estate Agents Limited | Extraterritorial | 2013 |
| Divine Holdings Limited | Professional & scientific | 2018 |
| Divine Lettings Limited | Real estate | 2013 |
| DJ & RT Lysaght Limited | Extraterritorial | 2015 |
| DL Ritchie Limited Partnership | | 2010 |
| Don'T BE Sheepish Limited | Health & social care | 2021 |
| DP (Norfolk) Ltd | Wholesale & retail | 2024 |
| Dream Catchers Lake Ltd | Hospitality | 2017 |
| Drury's Lane Roadway Management Company Limited | Real estate | 2010 |
| Drury's Yard Heating Management Company Limited | Real estate | 2010 |
| Drurys Environmental Services Ltd | Water & waste | 2016 |
| Drurys Transport Ltd | Water & waste | 2000 |
| Drurys Vehicle Services Ltd | Manufacturing | 2015 |
| East Tech Holdings Ltd | Professional & scientific | 2020 |
| Easy Clean (Norfolk) Limited | Administrative & support | 2018 |
| Eco-Check Consultancy Ltd | Professional & scientific | 2009 |
| Eden Hall Developments Limited | Construction | 2001 |
| Electron Studios Ltd | Information & communication | 2023 |
| Ellie Payne Ltd | Professional & scientific | 2025 |
| Elvari Holdings Ltd | Health & social care | 2024 |
| Elysium Resorts Limited | Hospitality | 2026 |
| Engage Health Systems Limited | Manufacturing | 2018 |
| Ensemble Architecture Limited | Wholesale & retail | 2019 |
| Espace Pines Limited | Real estate | 2022 |
| Espaces Joli Limited | Real estate | 2022 |
| Essential Plumbing Solutions Ltd | Construction | 2022 |
| Euro-Matic (Brazil) Limited | Financial services | 1999 |
| Everlasting Ltd | Wholesale & retail | 2025 |
| EVO Heat Services Limited | Construction | 2021 |
| Extra Care Home Services Ltd | Administrative & support | 2007 |
| Ezefel Property UK Ltd | Real estate | 2024 |
| F and M Estates Ltd | Real estate | 2019 |
| Fairytale Housekeeping Ltd | Administrative & support | 2019 |
| Falgate Properties Ltd | Real estate | 2011 |
| Farrow OGS Limited | Mining & quarrying | 2008 |
| Fati Trans Limited | Transport & logistics | 2024 |
| FG Moulders Limited | Manufacturing | 2018 |
| Finding Magic CIC | Health & social care | 2021 |
| Firma Limited | Construction | 2017 |
| Floor Refinishing Limited | Construction | 2012 |
| FNA Services Ltd | Health & social care | 2025 |
| Folgate Commercial Units Ltd | Real estate | 2026 |
| Folkmoor Limited | Real estate | 1975 |
| Franchise House Management Company Limited | Real estate | 2020 |
| Francis Jones Jewellers Ltd | Wholesale & retail | 2024 |
| Fruehauf Park Sales & Storage Ltd | Transport & logistics | 2026 |
| FSR Car Sales Limited | Wholesale & retail | 2024 |
| Fully Cured Composites Limited | Wholesale & retail | 2016 |
| G.Bird Industrial Boilers Ltd | Manufacturing | 2012 |
| Gant & Vincent Limited | | 1966 |
| Gasp Software Limited | Information & communication | 2026 |
| GCA Composites Ltd | Administrative & support | 2017 |
| GCA Property Limited | Real estate | 2024 |
| GCP Project 000 Ltd | Real estate | 2016 |
| GCP Project 016 Ltd | Real estate | 2017 |
| GDS Financial Services Limited | Other services | 2008 |
| Getting to WIN Ltd | Professional & scientific | 2021 |
| Girovac Limited | Manufacturing | 1983 |
| Gordon Haynes Independent Funeral Services Limited | Other services | 2021 |
| Gotts & Walker Ltd | Financial services | 2022 |
| Green Leaf Planning Limited | Professional & scientific | 2016 |
| Gropod Limited | Professional & scientific | 2016 |
| H & M Accountancy Solutions Ltd | Professional & scientific | 2021 |
| H-26 Ltd | Professional & scientific | 2024 |
| Hadfields of (North Walsham) Limited | Wholesale & retail | 2016 |
| Hair by Hayley Thorpe Ltd | Other services | 2023 |
| Hanley Global Limited | Wholesale & retail | 2024 |
| Havsco Limited | Manufacturing | 2005 |
| Haysman Consulting Limited | Professional & scientific | 2017 |
| HE Whitehead Accounting and Bookkeeping Limited | Professional & scientific | 2016 |
| Healthy Environ Mentors Limited | Professional & scientific | 1999 |
| Heatherdown Properties (East Anglia) Limited | Construction | 1976 |
| Henry Ward Ltd | Wholesale & retail | 2020 |
| Heritage Fencing and Landscaping Ltd | Construction | 2026 |
| Hezi Direct Limited | Wholesale & retail | 2024 |
| HI3S Consultants Limited | Information & communication | 2026 |
| Hightrees Consultants Limited | Agriculture & fishing | 2016 |
| Hill Fruit Farm Glamping Ltd | Hospitality | 2024 |
| Holitec Broadband Ltd | Extraterritorial | 2012 |