| Fellowship of ST. Nicholas(The) | Education | 1942 |
| Fenwick Lifts Limited | Construction | 2005 |
| Feral Equipment Limited | Professional & scientific | 2006 |
| Fernacre Solutions Limited | Information & communication | 2002 |
| Fibrecare (UK) Limited | Administrative & support | 2001 |
| Fieldskill Packaging Limited | Administrative & support | 1999 |
| Filserv Limited | Manufacturing | 2006 |
| Finn Trading INT. Limited | Administrative & support | 2000 |
| Firmtown Property Management Limited | Hospitality | 1991 |
| First Class Finishers Ltd | Construction | 2006 |
| First Class Groundworks Limited | Construction | 2005 |
| Fitzalan Court (Peacehaven) Residents Association Limited | Real estate | 1972 |
| Fleetshaw Carpentry Limited | | 1991 |
| Flint & Matthews Limited | Wholesale & retail | 2003 |
| Florence House Seaford Limited | Hospitality | 2004 |
| Florida Property Holdings Limited | Real estate | 1954 |
| Flosag Limited | Other services | 2006 |
| Flude Group Ltd | Real estate | 1996 |
| Focal Logic Computing Limited | Information & communication | 1997 |
| Forbes Dawson Nominees (Number One) Limited | Professional & scientific | 2003 |
| Fordsea (Maintenance) Co Limited | Households | 1969 |
| Forechat Ltd. | Real estate | 2002 |
| Forest Ridge Management Company Limited | Households | 2000 |
| Fortunatus Transformation Consultancy Services Ltd | Information & communication | 2021 |
| Foster Court Hove Limited | Households | 2004 |
| Four Brunswick Place Limited | Households | 1999 |
| Four Eaton Villas (Hove) Limited | Households | 1997 |
| Fourteen Park Road Hanwell W7 Limited | Households | 1995 |
| Foxcone Limited | Health & social care | 2003 |
| Foxdown Holdings Limited | Extraterritorial | 2005 |
| Foxhole Group Limited | Professional & scientific | 2021 |
| Foxtree Services Limited | | 1989 |
| Frant Pedestrian Crossing Limited | Real estate | 2026 |
| Frederick Bird Investments Limited | Other services | 2006 |
| Freedom Healthcare Limited | Health & social care | 2002 |
| French Enterprises (Hastings) Limited | Wholesale & retail | 2003 |
| Fresh Start Community Association | Education | 2007 |
| Freshfield Commercial Limited | Real estate | 2021 |
| Freshly Squeezed Limited | Administrative & support | 2004 |
| Friends First | Health & social care | 2002 |
| Frontier Fireworks Limited | Wholesale & retail | 2003 |
| Futura Holdings Limited | Professional & scientific | 2024 |
| Future Engineering Developments Limited | Manufacturing | 2016 |
| G & J Dann Limited | Agriculture & fishing | 1996 |
| G K Rail Services Limited | Construction | 2003 |
| G K White and Company Ltd | Real estate | 2001 |
| G L S GAS & Heating Services Limited | Construction | 2003 |
| G. Carter (Welding) Limited | Construction | 1998 |
| G. Hunt Plumbing & Heating Limited | Construction | 2006 |
| G.H. Smith & SON (Fuel) Limited | Wholesale & retail | 1932 |
| G3D Limited | Administrative & support | 2008 |
| GA Hicks Associates Ltd | Administrative & support | 2006 |
| Gablemist Limited | Administrative & support | 2009 |
| Gables Court (Eastbourne) RTM Company Limited | Households | 2007 |
| Gaisford Editing Ltd | Information & communication | 2007 |
| Galenti Limited | Wholesale & retail | 2013 |
| Gallery Furniture Systems Ltd. | Manufacturing | 2002 |
| Galley Hill Freehold Company Limited | Households | 1998 |
| Gallo Locum Limited | Health & social care | 2007 |
| Garden Close (Bexhill) Ltd | Households | 2006 |
| Gasplus Energy Solutions Limited | Manufacturing | 2007 |
| Gdnc Limited | Professional & scientific | 2005 |
| Geewoods Construction Company Limited | Construction | 1972 |
| General Distribution Limited | Manufacturing | 2001 |
| Genesis Trawler Limited | Agriculture & fishing | 2005 |
| George Howes & Sons Plastering Limited | Construction | 2002 |
| Gerald Colwell Limited | Wholesale & retail | 2003 |
| Gerald F. Hopkins (Sussex) Limited | Wholesale & retail | 1981 |
| Ghost Cat Limited | Information & communication | 2007 |
| Giant Scaffolding Limited | Construction | 1999 |
| Giantpeak Limited | Professional & scientific | 1987 |
| Gildnote Limited | Professional & scientific | 1979 |
| Gina Katiuska Limited | Other services | 2007 |
| Glen Dudley Investments Limited | Administrative & support | 2007 |
| Glide Design Ltd | Other services | 2002 |
| Global Encounter Limited | Administrative & support | 1997 |
| Global Green Infrastructure Group Ltd | Financial services | 2024 |
| Global Marketing (London) Limited | | 1987 |
| Global RE Finality Solutions Limited | Administrative & support | 2005 |
| Global Reinsurance Consultants Limited | Financial services | 1999 |
| Globalfit & Wellbeing Hub Ltd | Health & social care | 2025 |
| GLT Property Ltd | Real estate | 2018 |
| Glyn Wakefield Services Limited | Construction | 2003 |
| GM Electrical Services Limited | Construction | 2006 |
| Go Jersey Ltd | Administrative & support | 2019 |
| GOJAKES123 Limited | Transport & logistics | 2026 |
| Golden Cross Cheese Company Limited | Manufacturing | 2002 |
| Golden TAN (South Coast) Limited | Other services | 2019 |
| Goldstone Services (GB) Limited | Administrative & support | 2002 |
| Golf Charlie Echo Limited | Administrative & support | 2001 |
| Goodman Morris Ltd. | Administrative & support | 2001 |
| Graduate International Ltd | Other services | 2002 |
| Graftvale Limited | Administrative & support | 1997 |
| Graham Dann Limited | Construction | 2003 |
| Graham Maunders Associates Ltd | Professional & scientific | 2007 |
| Grange Park Investments Limited | Real estate | 1887 |
| Greatdeed Limited | Construction | 1990 |
| Greatprice Limited | Wholesale & retail | 2017 |
| Green Blade Fayre Limited | Arts & recreation | 2002 |
| Green Horizons Environmental Consultants Limited | Professional & scientific | 2003 |