| Eurogroup Fruit Ltd | Wholesale & retail | 2018 |
| European Consulting Organization Ukeig | | 2015 |
| Eurotrans Silvio Ltd | Transport & logistics | 2018 |
| Evan Digital Ltd | Administrative & support | 2018 |
| EVB the COD Father Ltd | Hospitality | 2022 |
| Evdimou Limited | Wholesale & retail | 2014 |
| Evergreen Build Ltd | Construction | 2023 |
| Evesey Ltd | Health & social care | 2022 |
| Evidage Ltd | Professional & scientific | 2024 |
| Evolution Cosmetic Clinic Limited | Other services | 2015 |
| Evolution Proflight Solutions Ltd. | Professional & scientific | 2016 |
| Evolved Pilates Ltd | Arts & recreation | 2020 |
| Evora Consulting Ltd | Information & communication | 2024 |
| EWB Investments Ltd | Manufacturing | 2015 |
| Excalibur Logistics London Ltd | Hospitality | 2026 |
| External.Dev Limited | Information & communication | 2020 |
| Eyeload Limited | Information & communication | 2012 |
| Ezulwini & Kraal Limited | Professional & scientific | 2020 |
| F and C Group Export Ltd | Manufacturing | 2008 |
| Faerch UK Limited | Manufacturing | 1971 |
| Faerch Ukco II Limited | Manufacturing | 1974 |
| Faerch Ukco III Limited | Manufacturing | 2002 |
| Fairchance Limited | Extraterritorial | 1996 |
| Fairstead House School Trust Limited | Education | 1978 |
| Fairy Dust Dolls Limited | Wholesale & retail | 2005 |
| Falcon Management Consultancy Ltd | Professional & scientific | 2024 |
| Farm Furniture Ltd | Manufacturing | 2023 |
| Farmwealth Limited | Financial services | 1978 |
| Farrow and Smith Hair Design Ltd | Other services | 2017 |
| Faster Future Sports UK Ltd | Professional & scientific | 2023 |
| FAT Head Events Ltd | Arts & recreation | 2024 |
| Faulkner Civils Ltd | Construction | 2025 |
| Faux Real Estate App Limited | Information & communication | 2025 |
| Fds(Cambridge) Ltd | Construction | 2016 |
| FE Security & Risk Management Ltd | Administrative & support | 2024 |
| Feltwell Services Limited | Transport & logistics | 2016 |
| FEN Care Services Ltd | Administrative & support | 2024 |
| FEN Developments (ELY) Limited | Construction | 2014 |
| FEN Events Ltd | Hospitality | 2017 |
| FEN View Lakes Ltd | Arts & recreation | 2024 |
| Fenbridge Finance Limited | Financial services | 2025 |
| Fencabs Limited | Transport & logistics | 2009 |
| Fencroft Ltd | Financial services | 2015 |
| Fenland Farming Ltd | Agriculture & fishing | 2007 |
| Fenland Fine Finishes Ltd | Construction | 2021 |
| Fenland Physio Limited | Health & social care | 2002 |
| Fenland Soil Ltd | Other services | 2022 |
| Fenland Spirit Mowers Limited | Wholesale & retail | 2019 |
| Fenland Spirit Services Limited | Manufacturing | 2016 |
| Fenlander Ltd | Agriculture & fishing | 2007 |
| Fernham Consulting Limited | Professional & scientific | 2013 |
| Ffwd Ltd | Transport & logistics | 2017 |
| Fiddleford Holdings Ltd | Professional & scientific | 2012 |
| Fiddleford Mushrooms Limited | Agriculture & fishing | 1997 |
| Field 65 Ltd | Agriculture & fishing | 2023 |
| Field Services (Anglia) Limited | Wholesale & retail | 1998 |
| Fields 16 & 17 Limited | Real estate | 2014 |
| Fields 59 - 60 Ltd | Agriculture & fishing | 2020 |
| Fields 71 - 72 Limited | Real estate | 2014 |
| Fields 9,10,11 Limited | Energy | 2013 |
| Filemaker Developer UK Ltd | Information & communication | 2022 |
| Financial Reporting and Taxation Services Ltd | Professional & scientific | 2023 |
| Finches Charm Limited | Agriculture & fishing | 2004 |
| Findmycab Ltd | Transport & logistics | 2018 |
| Finlay James Property Developments Ltd | Construction | 2026 |
| Fins Health Care Solutions Ltd | Health & social care | 2023 |
| Fireexprotection Ltd | Professional & scientific | 2026 |
| Firm Alliance UK Limited | Professional & scientific | 2001 |
| First One Pictures Limited | Information & communication | 2023 |
| Firuzjon Ltd | Hospitality | 2021 |
| Fish & Duck Limited | Hospitality | 2010 |
| Fish and Duck Leisure Ltd | Arts & recreation | 2015 |
| Fitzroy's Yard Management Company Limited | Real estate | 2012 |
| Fivh Ltd | Wholesale & retail | 2024 |
| FIX4U Cambridge Limited | Construction | 2025 |
| Fixlock Ltd | Wholesale & retail | 2025 |
| Flatland BOY Investments Ltd | Financial services | 2026 |
| Flaxfields Limited | Real estate | 2018 |
| Flaxfields Secretarial Limited | Administrative & support | 2020 |
| Flite Accountancy Ltd | Professional & scientific | 2009 |
| Florence House (Witchford) Management Company Limited | Real estate | 2007 |
| Flow Calibration Services Limited | Manufacturing | 1985 |
| Fmcg Warehousing Ltd | Transport & logistics | 2019 |
| FMT Lettings Limited | Real estate | 2003 |
| Fodder FEN Farm Limited | Agriculture & fishing | 2025 |
| Fontewell Services Ltd | Professional & scientific | 2008 |
| Foobar Engineering Ltd | Information & communication | 2014 |
| Food Life Well CIC | Other services | 2020 |
| Food Safe Consultancy & Advisory Ltd | Professional & scientific | 2017 |
| Foodwell Vegetable Processors Limited | Manufacturing | 2002 |
| Football FUN Factory (Community 012) Ltd | Arts & recreation | 2020 |
| Football FUN Factory (COMMUNITY084) Limited | Arts & recreation | 2023 |
| Fordham Build Ltd | Construction | 2022 |
| Fordham Electrical Solutions Ltd | Construction | 2024 |
| Fordham Property Limited | Real estate | 2020 |
| Forefront Technologies Ltd | Other services | 2023 |
| Forest School Camps | Education | 1968 |
| Forewarned Limited | Professional & scientific | 2022 |
| Forktech Handling Ltd | Other services | 2024 |
| Fortigen Limited | Manufacturing | 2025 |