| Coastline Property Investments Limited | Construction | 2013 |
| Connect Electrical Installation Services Ltd | Construction | 2021 |
| Consign (Construction Skills Solutions) Limited | Administrative & support | 2007 |
| Consign (Norfolk) Ltd | Education | 2017 |
| Consign Consultancy Services Ltd | Professional & scientific | 2012 |
| Constantia Developments Norfolk Limited | Construction | 2024 |
| Consultcom Ltd | Professional & scientific | 2014 |
| Content Communications Associates Limited | Administrative & support | 2008 |
| Crayford & Abbs Limited | Wholesale & retail | 2004 |
| CT Baker Group Limited | Financial services | 2022 |
| Curated Escapes Limited | Professional & scientific | 2011 |
| D Barnes Electrical Ltd | Construction | 2011 |
| D.W. Moore (Fakenham) Limited | Financial services | 1976 |
| Data Wealth Management LLP | | 2005 |
| David Emmerson Associates Limited | Transport & logistics | 2010 |
| David Hooper Ltd | Manufacturing | 2014 |
| Defne CUT Barber Limited | Other services | 2026 |
| Designsmile Limited | Professional & scientific | 2019 |
| DJ Starling Plant Hire Limited | Administrative & support | 2013 |
| Dnhm Properties Ltd | Professional & scientific | 2022 |
| Double Take Media Limited | Information & communication | 2014 |
| Dragonfly Clothing Limited | Wholesale & retail | 2000 |
| Draper Brickwork Ltd | Construction | 2022 |
| Drey Enterprises Limited | Real estate | 2019 |
| Drift Lounge UK Ltd | Health & social care | 2026 |
| Dudley Engineering Ltd | Construction | 2021 |
| Dustsheets & Decor Ltd | Professional & scientific | 2024 |
| E'S Autos Limited | Manufacturing | 2015 |
| E-Motion Cycles Limited | Wholesale & retail | 2024 |
| Easdale Ventures Limited | Information & communication | 2008 |
| East Allen Holdings Ltd | Financial services | 2026 |
| East of England CPD Limited | Other services | 2005 |
| Ecclesgroup Events Limited | Administrative & support | 2005 |
| EHU Ltd | Information & communication | 2022 |
| EKO Cleaning Limited | Administrative & support | 2022 |
| Emberquay Ventures Ltd | Information & communication | 2026 |
| Engaging Spaces Limited | Professional & scientific | 2022 |
| Esperanza 24 Limited | Professional & scientific | 2024 |
| Essential Code Limited | Information & communication | 2019 |
| Eurotrack Limited | Wholesale & retail | 2005 |
| Everblue Group Limited | Financial services | 2026 |
| Everblue Solar Limited | Administrative & support | 2015 |
| Everblue Solar USA Limited | Financial services | 2024 |
| Excel Accountancy Norwich Ltd | Professional & scientific | 2020 |
| Exmoor Enterprises Limited | Hospitality | 1935 |
| Facet Link Holdings Limited | Financial services | 2021 |
| Fallbarrow Consultancy Ltd | Wholesale & retail | 2015 |
| Finaffiliates Limited | Information & communication | 2022 |
| Finer Things Editorial Ltd | Administrative & support | 2022 |
| Fire Safety Advisors Ltd | Extraterritorial | 2021 |
| First Class Traveller Limited | Real estate | 2013 |
| Fishers Field Management Company Limited | Households | 2017 |
| Fitesa Limited | Professional & scientific | 2009 |
| Fitesa Mexico Holdings Limited | Professional & scientific | 2009 |
| Fleur Developments Ltd | Construction | 2007 |
| Fleur Well Limited | Construction | 2016 |
| Flor Marine Limited | Transport & logistics | 2008 |
| Forgeside-Lines Limited | Professional & scientific | 1971 |
| Foxy Limited | Professional & scientific | 2007 |
| From YOU to ME Limited | Information & communication | 2007 |
| Gcrm Consulting Limited | Professional & scientific | 2019 |
| GDR Sales Limited | Professional & scientific | 2009 |
| Genatec Developments Ltd | Construction | 2020 |
| Genatec Group Limited | Financial services | 2023 |
| Genatec Limited | Construction | 2009 |
| George Youngs Limited | Administrative & support | 2025 |
| Gilgamesh Middle Eastern Language Services Limited | Professional & scientific | 2003 |
| Ginger Estates Limited | Real estate | 2003 |
| Girdlestone Tingey Developments Limited | Financial services | 2021 |
| Glandford Stores Ltd | Wholesale & retail | 2026 |
| Golf Course Awards Limited | Arts & recreation | 2023 |
| Gorkem Mobile Barber Limited | Other services | 2019 |
| Gradus Simulation Limited | Professional & scientific | 2011 |
| Greenhorizon Consulting Limited | Professional & scientific | 2014 |
| Greening Holt CIC | Professional & scientific | 2021 |
| Gresham Gravel Limited | Mining & quarrying | 2012 |
| Gresham's School | Education | 2004 |
| Gresham's School Enterprises Limited | Wholesale & retail | 2008 |
| Gresham's School International Ltd | Education | 2025 |
| Greyfriar Developments Limited | Real estate | 2026 |
| Gwfs Group Limited | Administrative & support | 2016 |
| HB Events Ltd | Arts & recreation | 2011 |
| Headlands Residents Management Company Limited | Households | 2006 |
| Heaven Made Foods of Holt Limited | Manufacturing | 1986 |
| HEN and Hound Hospitality Ltd | Hospitality | 2024 |
| Henners Group Limited | Professional & scientific | 2020 |
| Highbeck Group Limited | Financial services | 2026 |
| HIP HOP HEN Limited | Education | 2013 |
| Hldavis Ltd | Other services | 2022 |
| Holt Beauty Limited | Other services | 2022 |
| Holt Flooring Limited | Wholesale & retail | 2025 |
| Holt Health Services Limited | Health & social care | 2008 |
| Holt Heating and Plumbing Limited | Construction | 2019 |
| Holt Monocle Limited | Professional & scientific | 2024 |
| Holt Motorcycles Ltd | Wholesale & retail | 2017 |
| Holt Restaurants Limited | Hospitality | 2020 |
| Holt Retail Limited | Wholesale & retail | 2009 |
| Holt Sunday Market Limited | Professional & scientific | 2025 |
| Holt Youth Project Limited | Administrative & support | 2009 |
| Holt's Folks Ltd | Wholesale & retail | 2024 |