| Exning House Management Company Limited | Households | 2002 |
| Express RX Ltd | Wholesale & retail | 2022 |
| Extreme Connect Ltd | Administrative & support | 2016 |
| Extreme Hangout Ltd | Extraterritorial | 2016 |
| Extreme Sport Business Limited | Information & communication | 2003 |
| Extreme Sports Channel Limited | Extraterritorial | 2014 |
| F&K Invest Ltd | Financial services | 2018 |
| Fabricworx UK Ltd | Construction | 2025 |
| Fade Properties Limited | Professional & scientific | 2004 |
| Faiers Carpentry and Building Ltd | Manufacturing | 2021 |
| Fair Group Holdings Ltd | Financial services | 2026 |
| Falcon Groundworks Limited | Construction | 2010 |
| Familybond Ltd | Hospitality | 2026 |
| Faro Ltd | Administrative & support | 2017 |
| Farrington Leisure Ltd | Hospitality | 2023 |
| Fastcarry Tactical Ltd | Extraterritorial | 2024 |
| Faupel and Daffern Ltd | Construction | 2021 |
| Femme Cars Limited | Transport & logistics | 2011 |
| Fezziwig Productions Limited | Arts & recreation | 2025 |
| FFF BEN Hall Ltd | Arts & recreation | 2026 |
| Fieldview Surveying Services Ltd | Professional & scientific | 2020 |
| Fifty Fifty Holdings Limited | Financial services | 2018 |
| Filex Archive Consultants Limited | Professional & scientific | 1999 |
| Financial Compliance Limited | Financial services | 2016 |
| Fine City Tattoo Limited | Arts & recreation | 2024 |
| Finn Blue Consulting Limited | Professional & scientific | 2018 |
| Fire Panda Limited | Professional & scientific | 2014 |
| First Call Nationwide Ltd | Construction | 1997 |
| First Potential Limited | Professional & scientific | 2004 |
| First Stop Commercials Limited | Manufacturing | 1999 |
| Fit With SAM B Ltd | Education | 2020 |
| Five BROTHERS123 Limited | Wholesale & retail | 2024 |
| Flat Roof Consultants Ltd | Construction | 2021 |
| Flats at Market Parade (Ewell) Ltd | Administrative & support | 2021 |
| Flav’S Way Limited | Transport & logistics | 2023 |
| Flexible Physio & Rehab Ltd | Wholesale & retail | 2022 |
| Flightline Ltd | Transport & logistics | 2024 |
| Flintfield Homes Limited | Real estate | 2000 |
| Floors and Snores Sudbury Ltd | Wholesale & retail | 2015 |
| Floto Limited | Information & communication | 2024 |
| Flycom Avionics Limited | Administrative & support | 2003 |
| Foam Sword Ltd | Information & communication | 2014 |
| Forgotten Togs Ltd | Wholesale & retail | 2025 |
| Former Silk Mill (Glemsford) Management Company Limited | Households | 2021 |
| Fornham Chiropractic Ltd | Health & social care | 2017 |
| Fortify Fitness Limited | Administrative & support | 2022 |
| Fosters Old School Management Company Limited | Households | 1998 |
| Four Crescent Road Limited | Households | 1982 |
| FOX Black Ltd | Wholesale & retail | 2023 |
| Foxdales (Eggborough) Management Company Limited | Households | 2003 |
| Foxearth Developments Limited | Construction | 2003 |
| Foxearth Homes Ltd | Real estate | 2015 |
| FPF Roofing Ltd | Construction | 2024 |
| FPJ Accounts Limited | Professional & scientific | 2024 |
| Franklin Rose Search Limited | Professional & scientific | 2016 |
| Freetime Leisure Ltd | Hospitality | 2022 |
| Freshcyber Ltd | Information & communication | 2023 |
| Freshly Spotless Ltd | Administrative & support | 2025 |
| Friars Street Dental Ltd | Health & social care | 2014 |
| Fruitful Publications Limited | Information & communication | 2014 |
| Fulcher Forestry Limited | Agriculture & fishing | 2023 |
| Fungi Myco Ltd | Wholesale & retail | 2021 |
| Funkycateringea Ltd | Hospitality | 2026 |
| FUNKYFOOD4U Limited | Hospitality | 2023 |
| Future Floors & Design Limited | Manufacturing | 2002 |
| Future Vision (Sudbury) | Other services | 2002 |
| Future Waves Property Limited | Real estate | 2018 |
| G D Electrical Contractors Ltd | Construction | 2021 |
| G F Hawkins Limited | Agriculture & fishing | 1954 |
| G R Smith Building Ltd | Construction | 2013 |
| G&D Capital Limited | Professional & scientific | 2010 |
| G.S. Parker Construction Ltd | Construction | 2004 |
| GA Haulage Limited | Transport & logistics | 2019 |
| Gages Garage Limited | Wholesale & retail | 2022 |
| Gainsborough Building Contracts Limited | Construction | 2014 |
| Gainsborough Coffee House Ltd | Hospitality | 2021 |
| Gainsborough Commercials Limited | Wholesale & retail | 2015 |
| Gainsborough Court (Sudbury) Limited | Households | 2004 |
| Gainsborough Estate Agents - Drury Group Limited | Extraterritorial | 2022 |
| Gainsborough Swim Academy CIC | Education | 2026 |
| Gainsborough Wealth Management Limited | Financial services | 2018 |
| Gainsborough’S House Society | Arts & recreation | 2016 |
| Galleon Court (Phase 3) Management Limited | Real estate | 2001 |
| Garden FOX Ltd | Wholesale & retail | 2015 |
| GAS Sales & Service Limited | Wholesale & retail | 2016 |
| Gasco Heating Services Limited | Construction | 2012 |
| Gastro Restaurants Limited | Hospitality | 2022 |
| Gather Wine Ltd | Wholesale & retail | 2025 |
| GAV CAN With a Van Ltd | Other services | 2020 |
| GC Throwing Ltd | Education | 2022 |
| GCB Cocoa UK Limited | Manufacturing | 2020 |
| GCB UK Property Ltd | Real estate | 2022 |
| Gdnpropertydevelopments Limited | Real estate | 2024 |
| Genesis (Hinchingbrook) Management Company Limited | Households | 2007 |
| Genesis Investment Solutions Ltd | Construction | 2026 |
| Geofflyn Precision Engineering Ltd. | Manufacturing | 1997 |
| Gerry Bird Consultants Limited | Professional & scientific | 2002 |
| Getting Your Mortgage Ltd | Information & communication | 2026 |
| Gilbert Dark Consulting Limited | Information & communication | 2024 |
| Giltsign Property Management Company Limited | Real estate | 1990 |