| Fullbar Limited | Manufacturing | 2025 |
| Fullwood Electrics Limited | Manufacturing | 2009 |
| Fulture CIC | Arts & recreation | 2025 |
| FUN Box Day Nursery Limited | Real estate | 2014 |
| Functionary Limited | Hospitality | 2015 |
| Funkey Monkey Properties Ltd | Real estate | 2026 |
| Funksystems Ltd | Information & communication | 2024 |
| Funny Business Limited | Professional & scientific | 2020 |
| Fuqingfood Ltd | Hospitality | 2025 |
| Furniture World (South) Limited | Wholesale & retail | 2018 |
| Furry Tail Walks Limited | Professional & scientific | 2016 |
| Furse Landscape Architects Limited | Professional & scientific | 2005 |
| Further Than the Edge Productions C.I.C. | Education | 2024 |
| Furtherfield Group Limited | Financial services | 2025 |
| Fuse Financial Ltd | Financial services | 2023 |
| Fushion Southampton Limited | Hospitality | 2026 |
| Fusion 2008 Limited | Hospitality | 2025 |
| Fusion Biomass Ltd | Energy | 2019 |
| Fusion Family Food Ltd | Hospitality | 2021 |
| Fusion Flavours Ltd | Hospitality | 2026 |
| Fusion Grill House Limited | Hospitality | 2019 |
| Fusion Hair Limited | Other services | 2017 |
| Fusion Innovative Limited | Information & communication | 2017 |
| Fusion My Business Limited | Information & communication | 2022 |
| Fusion Shoes Ltd | Wholesale & retail | 2009 |
| Fusions Foods Ltd | Manufacturing | 2019 |
| Futura Yachts UK Limited Partnership | | 1995 |
| Future Automotive Technologies Ltd | Professional & scientific | 2015 |
| Future Carpentry & Building Services Limited | Manufacturing | 2025 |
| Future Employment Limited | Administrative & support | 2007 |
| Future Energy Assessors Limited | Professional & scientific | 2023 |
| Future Faced Ltd | Information & communication | 2021 |
| Future Forward Ltd | Hospitality | 2020 |
| Future Moon Ltd | Education | 2014 |
| Future of Group Ltd | Construction | 2022 |
| Future Projects Social Care Ltd | Health & social care | 2025 |
| Future Proof Consultancies Ltd | Information & communication | 2026 |
| Future Refurbishments Limited | Construction | 2013 |
| Future Steps Hampshire CIC | Education | 2025 |
| Future Teachers UK Ltd | Administrative & support | 2025 |
| Futuregenerations ED. Ltd | Education | 2021 |
| Futuremost Group Limited | Professional & scientific | 2010 |
| Futuremost Limited | Manufacturing | 1987 |
| Futuremost Windows Limited | Real estate | 1989 |
| Fuzzy Work Ltd | Information & communication | 2018 |
| FWO Media Limited | Professional & scientific | 2025 |
| FWT Projects Ltd | Construction | 2023 |
| FWT Properties Limited | Real estate | 2015 |
| Fyeo Entertainment Limited | Hospitality | 2018 |
| Fyeo Topp Tiles Limited | Wholesale & retail | 2019 |
| Fyfield Residents Company Limited | Households | 1992 |
| G & C Professional Home Improvements Ltd | Construction | 2017 |
| G & C Property Investments Limited | Real estate | 2004 |
| G & D Consulting Limited | Professional & scientific | 2025 |
| G & H Properties (Southern) Limited | Construction | 2017 |
| G & H Sandhu Limited | Real estate | 2021 |
| G & L Transport Southern Ltd | Transport & logistics | 2007 |
| G & M Legal Consulting Limited | Administrative & support | 2020 |
| G & T Marketing Solutions Limited | Wholesale & retail | 2011 |
| G & T Print Finishers (Swindon) Limited | Manufacturing | 1995 |
| G a B Carpentry Ltd | Construction | 2007 |
| G a Hull Consultancy Ltd | Professional & scientific | 2026 |
| G a Marine Engineering Ltd | Manufacturing | 2017 |
| G a Property Rentals Ltd | Real estate | 2025 |
| G a Property Ventures Ltd | Real estate | 2025 |
| G a Stone Ltd | Professional & scientific | 2023 |
| G B Marine Services Ltd | Construction | 2008 |
| G by DIY Ltd | Construction | 2024 |
| G Duffy Limited | Construction | 2015 |
| G E Property Services Limited | Real estate | 2017 |
| G Eaton Ltd | Wholesale & retail | 2023 |
| G F Haulage Ltd | Transport & logistics | 2018 |
| G Force Delivery Ltd | Transport & logistics | 2020 |
| G H Building Contractors Limited | Construction | 2002 |
| G H Electrical & Property Maintenance Ltd | Construction | 2023 |
| G H Electrical Ltd | Construction | 2019 |
| G Hansford Interiors Ltd | Construction | 2016 |
| G K Carpet & Flooring Ltd | Construction | 2011 |
| G L Sales & Marketing Limited | Wholesale & retail | 1999 |
| G Marine Services Ltd | Manufacturing | 2022 |
| G N G Cars Limited | Transport & logistics | 2025 |
| G Pepper Construction Management Services Limited | Professional & scientific | 2017 |
| G R Stone Limited | Professional & scientific | 2005 |
| G S G Solutions Limited | Information & communication | 2001 |
| G Spot Productions Ltd | Professional & scientific | 2024 |
| G&C Property Developments Ltd | Real estate | 2020 |
| G&D 2017 Limited | Construction | 2017 |
| G&G Coffee and Food Ltd | Manufacturing | 2018 |
| G&H Electrical Ltd | Construction | 2022 |
| G&I Clean and Removal Ltd | Transport & logistics | 2025 |
| G&J Premium Travel Limited | Transport & logistics | 2024 |
| G&K Lettings Limited | Real estate | 2006 |
| G&M Legacy Ltd | Wholesale & retail | 2025 |
| G&M Privatechefs Ltd | Hospitality | 2016 |
| G-Force Multi-Group Ltd | Agriculture & fishing | 2026 |
| G-Hosp Ltd | Hospitality | 2020 |
| G-Tech G Ltd | Professional & scientific | 2016 |
| G.A. Electrical Services (Mechanical & Electrical Contractors) Limited | Construction | 2007 |
| G.A.K.A Limited | Professional & scientific | 2024 |
| G.B.Transport & Services Limited | Transport & logistics | 2019 |