| East Coast Storage (Handling) Limited | Transport & logistics | 1974 |
| East Wash Coastal Management Community Interest Company | Professional & scientific | 2015 |
| Easy Car Sales Ltd | Wholesale & retail | 2021 |
| Economy Storage Limited | Real estate | 1979 |
| Egress UK Ltd | Information & communication | 2008 |
| Elec Plumbing & Heating Ltd. | Construction | 2005 |
| Elite Electrics (Anglia) Limited | Construction | 2014 |
| Elite Wheels EA Ltd | Wholesale & retail | 2025 |
| Elliot Finance Limited | Real estate | 2024 |
| Emery's Honey Ltd | Agriculture & fishing | 2021 |
| Empire Investment Solutions Ltd. | Financial services | 2018 |
| EPR Corporate Land Solutions Ltd | Construction | 2023 |
| Esrp Consultancy Ltd | Information & communication | 2013 |
| Estuary AD Limited | Professional & scientific | 2025 |
| Euro Safety Distribution Network Ukeig | | 2002 |
| Europe Fashion Ltd | Wholesale & retail | 2013 |
| Eurotech Precision Engineering Limited | Manufacturing | 1999 |
| Ewing Accounts Services Limited | Professional & scientific | 2019 |
| Exaclair Holdings Limited | Extraterritorial | 2007 |
| Excaliber Security Services Ltd | Administrative & support | 2016 |
| Excellon Systems Ltd | Information & communication | 2014 |
| Experts Group Essex Ltd | Construction | 2019 |
| Experts Group Ltd | Construction | 2019 |
| F J Agronomy Limited | Transport & logistics | 2014 |
| Fairlass Shellfish Ltd | Agriculture & fishing | 2019 |
| Fairwood Pizza Limited | Wholesale & retail | 2018 |
| Farr Formes Limited | Manufacturing | 1996 |
| Fast Courier Service Ltd | Transport & logistics | 2017 |
| FDC (Civil Engineering) Limited | Construction | 1996 |
| Feary Farms (Tilney) Limited | Agriculture & fishing | 1983 |
| Feel FAB X Limited | Administrative & support | 2020 |
| Feel Good Solutions Ltd | Wholesale & retail | 2020 |
| FH Roofing Services Ltd | Construction | 2025 |
| FHB Water Management Limited | Water & waste | 2009 |
| Firethorn Investments Limited | Real estate | 1993 |
| First Steps Child Care (Cambridgeshire) Ltd | Education | 2010 |
| Fitu Limited | Information & communication | 2008 |
| Foodcare Systems Ltd | Hospitality | 1998 |
| Forder Food Consulting Ltd | Hospitality | 2015 |
| Fortress Supported Living Services Ltd | Administrative & support | 2013 |
| Francis Overall Machinery Limited | Professional & scientific | 2020 |
| Franklin Film Limited | Information & communication | 2014 |
| Fridhem Rest Home Limited | Health & social care | 2005 |
| FRY Inn Ltd | Hospitality | 2023 |
| FT Short Limited | Other services | 2003 |
| Fuller Consultancy Limited | Professional & scientific | 2006 |
| Futuredev Ltd | Information & communication | 2019 |
| G & G Fencing Limited | Construction | 2000 |
| G & G Steel Fabrication Ltd | Manufacturing | 2020 |
| G & S Windows, Doors & Conservatories Ltd | Construction | 2019 |
| G J L Animal Feeds Limited | Wholesale & retail | 2003 |
| G M Vulcanising Ltd | Manufacturing | 2024 |
| G. K. Hewkin & Co. Limited | Professional & scientific | 2003 |
| Gallons Properties Ltd | Real estate | 2024 |
| Galton's Goodies Ltd | Agriculture & fishing | 2025 |
| Garden Tech Limited | Administrative & support | 2006 |
| Gasfm.Co.Uk Ltd | Wholesale & retail | 2014 |
| Gawn Digital Ltd | Information & communication | 2025 |
| GB Racing Media Limited | Information & communication | 2019 |
| Generation Roofing Ltd | Construction | 2024 |
| Glazewing Limited | Wholesale & retail | 1986 |
| Glebe Taxibus Limited | Information & communication | 1986 |
| Global Think UK Limited | Professional & scientific | 2008 |
| Glover Farming (West Dereham) Limited | Agriculture & fishing | 1995 |
| Glow UP Downham Ltd | Other services | 2025 |
| GR Coastal Construction Ltd | Construction | 2026 |
| Great Massingham Social Club Community Interest Company | Other services | 2013 |
| Greenworld IP Limited | Other services | 2013 |
| Groom Your Garden Limited | Administrative & support | 2002 |
| Gsjj Ltd | Other services | 2019 |
| Guy-Raymond Engineering Company Limited | Manufacturing | 1966 |
| H & R Builders Limited | Construction | 2018 |
| H&H Harpley Ltd | Construction | 2020 |
| H20 Vend Limited | Wholesale & retail | 2002 |
| Hakys Ltd | Wholesale & retail | 2016 |
| Harpley Engineering Limited | Manufacturing | 1977 |
| Harris Road Contractors Limited | Construction | 2002 |
| Harrison Chocolatiers Limited | Manufacturing | 2017 |
| Harvey Minns Associates Limited | Professional & scientific | 2020 |
| Haven Books Limited | Education | 2007 |
| Haywood Homes (EA) Ltd | Construction | 2025 |
| HB Developments (EA) Ltd | Construction | 2023 |
| HCR Services Ltd | Construction | 2021 |
| HE Lives Care Services Limited | Health & social care | 2011 |
| Heatsync Limited | Construction | 2014 |
| Hedgehog Web Design Limited | Information & communication | 2012 |
| Heronhill Water LLP | | 2010 |
| Highstock Homes Ltd | Construction | 2025 |
| Hipkin Construction Ltd | Construction | 2025 |
| Historic British Crafts Ltd | Manufacturing | 2010 |
| Historic Building Conservation (Special Projects) Ltd | Construction | 2018 |
| HJT Peckham Ltd | Manufacturing | 2018 |
| Holbeach Heating Ltd | Manufacturing | 2004 |
| Home Comfort Norfolk Ltd | Health & social care | 2018 |
| Horizontal Healthcare Ltd | Health & social care | 2022 |
| Houghton Energy Ltd | Energy | 2012 |
| Hume Tax Consultancy Limited | Professional & scientific | 2012 |
| Hunns Drywall Contractors Ltd | Construction | 2022 |
| Iacdtcs Limited | Information & communication | 2024 |
| IAN H BIX Associates Limited | Professional & scientific | 2013 |