| Fairweather Law Limited | Professional & scientific | 2002 |
| Fairy Dust Deliveries Ltd | Wholesale & retail | 2023 |
| Faithfull Practice Ltd | Wholesale & retail | 2026 |
| Falcon Taverns Limited | Hospitality | 2006 |
| Fantasmagorical Ltd | Other services | 2010 |
| Farriers Choice Limited | Wholesale & retail | 2006 |
| Favour Imieka Limited | Professional & scientific | 2025 |
| Fear of the Dice Ltd. | Arts & recreation | 2023 |
| Feature Wall Installations Ltd | Construction | 2021 |
| Felixstowe Bathroom and Heating Centre Limited | | 1980 |
| Fenston Carter Ltd | Wholesale & retail | 2020 |
| Feray Limited | Construction | 2024 |
| Ferriers Barn Limited | Health & social care | 1974 |
| Fighting Fit Limited | Arts & recreation | 2000 |
| Filao Trading Ltd | Wholesale & retail | 2023 |
| Filbera Properties Limited | Real estate | 2024 |
| Filebest Limited | Administrative & support | 1994 |
| Filler Control Systems Limited | | 1983 |
| Filmtek Systems Limited | | 1989 |
| Finely Figured Bookkeeping Solutions Ltd | Professional & scientific | 2023 |
| Fiona Bambrough-Stott Limited | Information & communication | 2003 |
| Fire Security (Sprinkler Installations) Limited | Other services | 1972 |
| Fireside Homes Ltd | Wholesale & retail | 2021 |
| Firetrace Ltd. | Manufacturing | 1996 |
| Fisherman's Basket | | 1994 |
| Fit Floor Ltd | Construction | 2021 |
| Fitzy Services Limited | Administrative & support | 2016 |
| Fix-A-Fax (Anglia) Ltd | Manufacturing | 2001 |
| Fix-A-Form International Limited | Manufacturing | 1982 |
| Fixedbricks Ltd | Real estate | 2024 |
| Flamin' Fitness Ltd | Wholesale & retail | 2020 |
| Fletcher BCS Ltd | Professional & scientific | 2023 |
| Flinco Panels | | 1993 |
| Flowingcrest Goods Ltd | Wholesale & retail | 2025 |
| Foamtidedecor Ltd | Wholesale & retail | 2025 |
| Foodblenders Limited | Manufacturing | 1997 |
| Footy Pitch Picks Ltd | Wholesale & retail | 2025 |
| FOR Children & Young People | Health & social care | 2000 |
| Forweds Network Ltd | Information & communication | 2023 |
| Frank Groom Contractors Limited | Agriculture & fishing | 2003 |
| Frank Mitchell Limited | Wholesale & retail | 2019 |
| Freehold Station 44 Limited | Real estate | 2019 |
| Fresh and Nearby Ltd | Wholesale & retail | 2023 |
| Fresh Mart Ipswich Limited | Wholesale & retail | 2026 |
| Fresh Soundz Ltd | Information & communication | 2024 |
| Frobisher Hair Designs Limited | Other services | 2003 |
| Fruitex (Spalding) Limited | Real estate | 1973 |
| Frutarom (UK) Limited | Manufacturing | 1999 |
| Frutarom - Etol (UK) Limited | Manufacturing | 2013 |
| Frutarom UK Investments Limited | Professional & scientific | 2016 |
| FSM Manufacturing Limited | Manufacturing | 1979 |
| FT Logistics Ltd. | Transport & logistics | 2014 |
| Full House Property Renovations Ltd | Real estate | 2024 |
| Fullforce Logistics Ltd | Transport & logistics | 2005 |
| FUN on Wheels UK Ltd | Education | 2007 |
| FUN to BE Fit | Health & social care | 2006 |
| Furdriftlamps Ltd | Wholesale & retail | 2025 |
| Furflareco Ltd | Wholesale & retail | 2025 |
| Furlong Property Developments Limited | Construction | 2024 |
| Fusion Management Yorkshire Ltd | Households | 2021 |
| Fvitaljoy Limited | Wholesale & retail | 2025 |
| G & M.B.Reade Limited Partnership | | 2006 |
| G J D Trading Limited | Wholesale & retail | 2003 |
| G K Beckford Properties Limited | Real estate | 2024 |
| G M a Warehousing and Transport Limited | Transport & logistics | 1985 |
| G Palmer Limited | Construction | 2003 |
| G. Smith Industrial Roofing Limited | Construction | 2006 |
| G. W. Leggett Limited | Real estate | 1984 |
| G.D.G Contracts Ltd | Construction | 2020 |
| GA4SENSE Limited | Wholesale & retail | 2025 |
| Gail Property Ltd | Real estate | 2023 |
| Gainsborough’S House Enterprises Limited | Wholesale & retail | 2023 |
| Galmart Limited | | 1981 |
| Gameduck Ltd | Wholesale & retail | 2021 |
| Garden House (Suffolk) Limited | Administrative & support | 2007 |
| Garnet Healthcare Limited | Health & social care | 2023 |
| Garrick Flooring Centre Limited | Other services | 2007 |
| Garrison Hunter Limited | Administrative & support | 2004 |
| Gary J Norman Flatroofing Limited | Construction | 2003 |
| Gary Smith Gardening Services Limited | Administrative & support | 2007 |
| GB Driver Works Ltd | Transport & logistics | 2015 |
| GB Facilities Management Ltd | Households | 2026 |
| GB Ingredients Limited | Manufacturing | 1932 |
| GDS Retail Suffolk Ltd | Other services | 2024 |
| Gelland Investments Corporation Limited | Extraterritorial | 2002 |
| GEM Industrial Products Limited | Manufacturing | 1988 |
| Gemini Essentials Ltd | Construction | 2024 |
| General Autonomics Ltd | Professional & scientific | 2025 |
| George Collin & Sons Limited | Construction | 1938 |
| Geoterra Engineering Limited | Administrative & support | 2024 |
| Gerald Boughton Limited | Wholesale & retail | 1971 |
| GET Taped UK Limited | Information & communication | 2023 |
| Gibbons Investments Limited | Real estate | 2023 |
| Gill Associates (Ipswich) Limited | Professional & scientific | 2004 |
| Gill Farr Limited | Information & communication | 2003 |
| Giltex Assured PLC | Arts & recreation | 1989 |
| Gipping Press Group Limited | Manufacturing | 1998 |
| Gisleham Industries Limited | Manufacturing | 2002 |
| GJ Bream Limited | Construction | 1982 |
| GK Tech Solutions Ltd | Information & communication | 2023 |