| Fifty Seven Properties Ltd | Real estate | 2022 |
| Figured Wood Company Limited | Construction | 2025 |
| Fika (Weymouth) Limited | Hospitality | 2025 |
| Filmspotting Ltd | Wholesale & retail | 2000 |
| Financial and Systems Consultancy Ltd | Professional & scientific | 2014 |
| Findlay & Butler Ltd | Professional & scientific | 2020 |
| Findoway Ltd | Other services | 2024 |
| Finelawns Property Management Limited | Households | 1991 |
| Finna's Limited | Hospitality | 2023 |
| Finoak Limited | Wholesale & retail | 2011 |
| Fire Retardant UK Ltd | Wholesale & retail | 2006 |
| Fire Sprinkler Design Limited | Public administration | 2003 |
| Fireball C&M Ltd | Wholesale & retail | 2011 |
| Firestan 2 Ltd | Real estate | 2025 |
| Firestan Limited | Administrative & support | 2002 |
| First Call Window Cleaning Ltd | Administrative & support | 2014 |
| First Class Transport Ltd | Transport & logistics | 2026 |
| Firstblock Residents Management Limited | Real estate | 1987 |
| Fish-On Ltd | Transport & logistics | 2010 |
| Fitting Solutions Southern Ltd | Manufacturing | 2024 |
| Fitzy Lifting Crane Hire Ltd | Administrative & support | 2017 |
| FIX My Iphone Today Limited | Other services | 2016 |
| Flair Hair & Beauty Portland Limited | Other services | 2015 |
| Flann Building Services Limited | Construction | 2002 |
| Flats to LET (2020) Limited | Real estate | 2020 |
| Flats to LET Limited | Real estate | 1960 |
| Fleet Utilities LLP | | 2024 |
| Fleetline Taxis Weymouth Limited | Transport & logistics | 2013 |
| Fleurs Properties Limited | Real estate | 2025 |
| Flexible Energy Limited | Energy | 2022 |
| Flintverge Residents Association Limited | Households | 1983 |
| Flowrideruk Limited | Wholesale & retail | 2011 |
| Foley Fisheries Limited | Agriculture & fishing | 2015 |
| Food Next Lay-By Ltd | Hospitality | 2007 |
| Food Plus (Weymouth) Ltd | Wholesale & retail | 2019 |
| Fordentech Ltd | Wholesale & retail | 2026 |
| Ford’S Plumbing & Heating Ltd | Construction | 2021 |
| Forever Property Investments Limited | Real estate | 2018 |
| Foreverwithme Ltd | Manufacturing | 2017 |
| Formex Technologies Ltd | Manufacturing | 2020 |
| Formotion Clinics Limited | Health & social care | 2015 |
| Fort View Cafe Ltd | Hospitality | 2022 |
| Fortescue Management Limited | Real estate | 2008 |
| Forwoodsake Limited | Manufacturing | 2015 |
| Fossil Beach (Weymouth) Limited | Wholesale & retail | 2023 |
| Fossil Foods Limited | Hospitality | 2021 |
| Fossil Fuel Ltd | Hospitality | 2025 |
| Foster Brandt Limited | Professional & scientific | 2008 |
| Foundation Testing Services (U.K) Limited | Construction | 2020 |
| Four Wents Property (Freehold) Ltd | Real estate | 2026 |
| Four Wents Property Limited | Real estate | 2026 |
| Frampton and Scott Ltd | Manufacturing | 2017 |
| Frampton SCC Limited | Health & social care | 2025 |
| Frank Connor Limited | Information & communication | 2010 |
| Frank Herring & Sons Limited | Wholesale & retail | 2005 |
| Franklin & Co Accountants Ltd | Professional & scientific | 2011 |
| Franklin Residential Management Company Limited | Real estate | 1994 |
| Fraser ALL Terrain Contractors Limited | Construction | 2015 |
| Fraser Seaworks Limited | Professional & scientific | 2019 |
| FRD Healthcare Limited | Health & social care | 2021 |
| Freedom Focused School of Motoring Limited | Education | 2025 |
| Freedomlifestylenetwork Ltd | Administrative & support | 2025 |
| Freefly Multimedia Limited | Information & communication | 2010 |
| Freehold Management 57 Ltd | Real estate | 2024 |
| Freeplay Arcades Ltd | Arts & recreation | 2025 |
| Fresh Bites Limited | Hospitality | 2020 |
| Fresh Wave BJJ Ltd | Arts & recreation | 2025 |
| Friary Care Limited | Health & social care | 2010 |
| Friday Night Flix Ltd | Information & communication | 2026 |
| Fried Green Tomatoes Limited | Health & social care | 2016 |
| Frogestates Limited | Real estate | 2017 |
| Frome Farrow Properties Limited | Real estate | 2021 |
| Frost's Fishmongers Limited | Wholesale & retail | 1976 |
| FTF Consulting Limited | Health & social care | 2012 |
| FTK Beauty Ltd | Other services | 2025 |
| FU2URO Limited | Professional & scientific | 2023 |
| Fulford Care Home Limited | Health & social care | 2016 |
| Full Time Talent Ltd | Arts & recreation | 2025 |
| Fulsetlink Limited | Households | 1978 |
| Furley Engineering Limited | Professional & scientific | 2016 |
| Furzedown Farm CIC | Education | 2025 |
| Fuse.It Ltd | Information & communication | 2026 |
| Future Flooring (SW) Ltd | Construction | 2021 |
| Future Footings Property Solutions Yellow Ltd | Real estate | 2026 |
| Future Spark Recruitment Limited | Administrative & support | 2025 |
| Futuro (SW) Limited | Professional & scientific | 2016 |
| G & a Record Holdings Ltd | Real estate | 2023 |
| G & G Travel Europe Ltd | Administrative & support | 2014 |
| G G Roofing & Leadwork Limited | Construction | 2014 |
| G Hallewell Limited | Agriculture & fishing | 2010 |
| G N Marine Limited | Agriculture & fishing | 2012 |
| G. Williams Building Services Limited | Construction | 2002 |
| Gainsborough Court (Weymouth) Limited | Households | 1984 |
| Gajãra Ltd | Wholesale & retail | 2025 |
| Gallant PIG Limited | Hospitality | 2021 |
| Ganny Estates 72 Ltd | Financial services | 2022 |
| GAR Store Limited | Wholesale & retail | 2026 |
| Garage Doors (Dorset) Ltd | Manufacturing | 2013 |
| Garden Court Management Limited | Households | 1986 |
| Gareth Price Limited | Construction | 2012 |