| EYS Electricals Ltd | Construction | 2009 |
| EYV Ltd | Education | 2022 |
| EZ Gains Ltd | Manufacturing | 2022 |
| EZ Gains Property Ltd | Real estate | 2025 |
| EZE Assets Management Ltd | Information & communication | 2019 |
| EZE Truck Company Ltd | Manufacturing | 2019 |
| Ezer Performance Ltd | Professional & scientific | 2026 |
| Ezinne Editors Limited | Other services | 2015 |
| F & F Lifestyle Limited | Other services | 2017 |
| F & J Refix Ltd | Construction | 2015 |
| F & Z Midlands Ltd | Hospitality | 2023 |
| F a M Plastering Ltd | Construction | 2022 |
| F and T Norwich Investment Limited | Real estate | 2020 |
| F C C Specialist Associated Services Limited | Professional & scientific | 1999 |
| F C Walker Limited | Extraterritorial | 2014 |
| F I Hall Limited | Financial services | 2019 |
| F L Trimmings Limited | Other services | 2008 |
| F M Leisure Limited | Arts & recreation | 2005 |
| F M Motors Norwich Ltd | Wholesale & retail | 2019 |
| F P Calver Ltd | Agriculture & fishing | 2021 |
| F&M Hospitality Limited | Hospitality | 2025 |
| F&R Commercials Ltd | Extraterritorial | 2024 |
| F-B Projects (Norwich) Ltd | Real estate | 2024 |
| F. Crowe & Sons Limited | Manufacturing | 1952 |
| F. Engel Limited | Administrative & support | 2008 |
| F. Hayles & Associates Limited | Professional & scientific | 2019 |
| F.A.A.M. Limited | Professional & scientific | 2008 |
| F.H.Easton Limited | Agriculture & fishing | 1956 |
| F.O Admin Ltd | Professional & scientific | 2021 |
| F.O Fifteen Ltd | Professional & scientific | 2021 |
| F.O.G. Leisure Limited | Manufacturing | 2007 |
| F.Santos Limited | Health & social care | 2023 |
| F.W.Hall & Son,Limited | Manufacturing | 1933 |
| F2 Construction Limited | Construction | 2022 |
| FA Sparks Ltd | Construction | 2020 |
| FAB4GOLF Ltd | Wholesale & retail | 2018 |
| Fabal Global Limited | Hospitality | 2026 |
| Fabcon Food Systems Limited | Manufacturing | 2013 |
| Faber Roofing Limited | Construction | 1945 |
| Faberdean BK Limited | Construction | 2018 |
| Faberdean CH Limited | Construction | 2018 |
| Faberdean EC Limited | Construction | 2019 |
| Faberdean FY Limited | Construction | 2021 |
| Faberdean HB Limited | Construction | 2017 |
| Faberdean Limited | Construction | 2013 |
| Fabi Digital Ltd | Wholesale & retail | 2024 |
| Fabl Construction Ltd | Construction | 2023 |
| Fable Events Ltd | Arts & recreation | 2022 |
| Fabled Tales Productions Ltd | Information & communication | 2019 |
| Fabmate Ltd | Administrative & support | 2025 |
| Fabric First Build Projects Ltd | Construction | 2019 |
| Fabric LAB Technologies Ltd | Information & communication | 2025 |
| Fabrice Katabana Ltd | Health & social care | 2015 |
| Fabriscape Limited | Extraterritorial | 2006 |
| Fabulous Brownies Ltd. | Hospitality | 2014 |
| Face Limited | Professional & scientific | 2002 |
| Facere Melius Ltd | Professional & scientific | 2011 |
| Facilities Cleaning Solutions Ltd | Administrative & support | 2023 |
| Facility Servicing Group Ltd | Construction | 2021 |
| Facit Testing Limited | Administrative & support | 2010 |
| Factory Fitness Ltd | Arts & recreation | 2025 |
| Facts Solutions Limited | Professional & scientific | 2011 |
| Faezthope Limited | Financial services | 2021 |
| FAI Electrical & Renewables Ltd | Manufacturing | 2020 |
| Faintest Idea Ltd | Wholesale & retail | 2024 |
| Fair Land Investments Ltd | Real estate | 2017 |
| Fair Parfum Limited | Wholesale & retail | 2019 |
| Fair Price Cash N Carry Ltd | Wholesale & retail | 2018 |
| Fairfield Financial Associates Limited | Financial services | 2026 |
| Fairfields Ashley Management Company Ltd | Households | 2026 |
| Fairland Technology Limited | Professional & scientific | 2012 |
| Fairman Ltd | Wholesale & retail | 2014 |
| Fairmile Residents' Association Limited | Real estate | 1986 |
| Fairquote Limited | Transport & logistics | 2006 |
| Fairshare UK Properties Ltd | Real estate | 2019 |
| Fairstead Property Management Limited | Real estate | 2014 |
| Fairway Lighting Ltd | Wholesale & retail | 2025 |
| Fairways Blofield Management Company Limited | Households | 2022 |
| Fairweather Maritime Limited | Transport & logistics | 2020 |
| Fairytrade Ltd | Other services | 2026 |
| Falco Rentals Ltd | Real estate | 2023 |
| Falcon AI Ltd | Information & communication | 2023 |
| Falcon Care Limited | Administrative & support | 2011 |
| Falcon Elite Ltd | Wholesale & retail | 2001 |
| Falcon Global Limited | Information & communication | 2000 |
| Falcon Recruitment and Training Ltd | Administrative & support | 2011 |
| Falkor Automotive Limited | Professional & scientific | 2025 |
| Fall of Civilizations Holdings Limited | Financial services | 2024 |
| Fall of Civilizations Ltd | Professional & scientific | 2020 |
| Fallen Arch Films Ltd | Information & communication | 2011 |
| Fallis Enterprises Limited | Wholesale & retail | 2003 |
| FAM Collective Ltd | Professional & scientific | 2020 |
| Families First Consultancy Ltd | Professional & scientific | 2020 |
| Family Law Consultancy Limited | Professional & scientific | 2010 |
| Family Voice Norfolk CIC | Other services | 2022 |
| Family Wealth Management Limited | Professional & scientific | 2004 |
| Family Wealth Services Limited | Professional & scientific | 2026 |
| Family Wealth Strategy Limited | Professional & scientific | 2004 |
| Familyplay Ltd | Arts & recreation | 2023 |
| Famos Media Ltd | Professional & scientific | 2020 |