| Firm Clothing Limited | Wholesale & retail | 2021 |
| First Force Medical Services Ltd | Health & social care | 2019 |
| First Guarantee Ltd | Real estate | 1997 |
| Fisher Downing Ltd | Transport & logistics | 2026 |
| Fit & Stich (Havant) Ltd | Professional & scientific | 2026 |
| Fit Property Services Limited | Real estate | 2026 |
| Flawesome Cosmetics Limited | Other services | 2018 |
| Flickfusion Limited | Administrative & support | 2025 |
| Floor-In Limited | Construction | 2024 |
| Flownet Solution Southern Group Limited | Financial services | 2025 |
| Flownet Solution Southern Labour Limited | Construction | 2025 |
| Flownet Solution Southern Limited | Construction | 2016 |
| Flux Leisure Ltd | Hospitality | 2025 |
| Fluxtech Lighting Limited | Wholesale & retail | 2017 |
| Flynn's Fleet Specialists Ltd | Wholesale & retail | 2021 |
| Fone Mart Limited | Wholesale & retail | 2016 |
| Fonemartonline Ltd | Wholesale & retail | 2026 |
| Food Safety Masters Ltd | Professional & scientific | 2009 |
| Foreman Lets Ltd | Households | 2024 |
| Forestal International Limited | Professional & scientific | 1974 |
| Forestal Mimosa Limited | Wholesale & retail | 1926 |
| Forever Young Dental & Aesthetics Ltd | Health & social care | 2020 |
| Forever Young Events Ltd | Administrative & support | 2025 |
| Foreverod Ltd | Construction | 2025 |
| Forton Lodge Management Limited | Households | 2003 |
| Forton Spice Ltd | Hospitality | 2023 |
| Foster's Smoke N' Slice Ltd | Hospitality | 2026 |
| Fourthnest Ltd | Construction | 2019 |
| Foxphones Ltd | Wholesale & retail | 2018 |
| Foxton International Limited | Wholesale & retail | 2017 |
| Francis Grace Buildings Limited | Construction | 2018 |
| Frankie's Dance 'N' Dine Ltd | Hospitality | 2025 |
| Freediving London Ltd | Wholesale & retail | 2024 |
| Fryco Homes Ltd | Real estate | 2025 |
| FTS Auto Repairs Limited | Wholesale & retail | 2013 |
| Fullegar Properties Limited | Real estate | 2026 |
| Fulmar Aerospace Consulting Ltd | Professional & scientific | 2024 |
| Furever Friends Southern Ltd | Education | 2025 |
| Fuse Flick Ltd | Construction | 2025 |
| Fusion Fitness Group Limited | Financial services | 2022 |
| Fusion Fitness Gym (Gosport) Limited | Arts & recreation | 2013 |
| Fusion Fitness Studio (Gosport) Limited | Arts & recreation | 2022 |
| Future Construction Solutions Limited | Construction | 2023 |
| G & M Roberts Ltd | Construction | 2012 |
| G C Civils Limited | Construction | 2007 |
| G Farrell Building Services Limited | Administrative & support | 2016 |
| G I Installations Ltd | Construction | 2018 |
| G.S. Building Services Ltd | Construction | 1999 |
| G.T Plumbing and Renewables Ltd | Construction | 2024 |
| Gafirs | Health & social care | 1985 |
| Galco Construction Limited | Construction | 2020 |
| Galco Estates Limited | Real estate | 2020 |
| Galmara 66 Limited | Information & communication | 2022 |
| GANG126PUK Ltd | Administrative & support | 2026 |
| Garage Space Direct Limited | Real estate | 2022 |
| Garden Club Ltd | Education | 2025 |
| Gardner Site Safe Training Limited | Education | 2026 |
| Garnham & Cook Ltd | Wholesale & retail | 2023 |
| Garrettnet Limited | Information & communication | 2011 |
| Garythompson Building Services Limited | Construction | 2016 |
| GAS Safe South Ltd | Construction | 2026 |
| Gasco Solent Heating Limited | Construction | 2015 |
| Gater Henley Property Limited | Real estate | 2020 |
| Gavin Perryman Carpets and Flooring Limited | Construction | 2015 |
| Gavins Ltd | Professional & scientific | 2016 |
| GBS Haulage Ltd | Transport & logistics | 2020 |
| GC Civils Holdings Limited | Real estate | 2025 |
| GCA Social Club Limited | Hospitality | 2002 |
| GCM Property Management Limited | Real estate | 2019 |
| GDL Holdings Limited | Construction | 2016 |
| Gedeon Secure Ltd | Transport & logistics | 2015 |
| Genesis Publishing House Ltd | Professional & scientific | 2025 |
| Georgecarsales Ltd | Wholesale & retail | 2011 |
| Georgie Swallow Ltd | Arts & recreation | 2025 |
| GH Waste and Clearance Ltd | Water & waste | 2023 |
| Giant Panda Takeaway Ltd | Hospitality | 2018 |
| Gigatech Network Solutions Ltd | Construction | 2020 |
| Gilkicker Maritime Services Limited | Real estate | 2025 |
| Gillespie Property Management Ltd | Real estate | 2024 |
| Gillian Wainwright Limited | Real estate | 2024 |
| Gingerlily Property Management Limited | Real estate | 2019 |
| Gingerlily Trading Limited | Professional & scientific | 2018 |
| Giovani Resin Floor Ltd | Construction | 2017 |
| GKJ Marketing Ltd | Professional & scientific | 2025 |
| Glacier Engineering Services Limited | Manufacturing | 2000 |
| Glanville Estates Limited | Real estate | 2001 |
| Glenwood Services Holdings Ltd | Financial services | 2022 |
| GLK Home Improvements Ltd | Construction | 2018 |
| GLM Ventures Limited | Construction | 2007 |
| Global Air Trade Ltd | Administrative & support | 2023 |
| Global Imaging Alliance Ltd | Professional & scientific | 2025 |
| Globe Explorers Ltd | Administrative & support | 2023 |
| Glprojectman Limited | Professional & scientific | 2022 |
| GM Operations Ltd | Transport & logistics | 2025 |
| GMC Mechanical Ltd | Construction | 2023 |
| Go ALL Digital Ltd. | Information & communication | 2026 |
| Go Telesales Limited | Administrative & support | 2015 |
| Gocare Compassionate Limited | Health & social care | 2017 |
| Godwin Kent Property Limited | Real estate | 2023 |
| Gold-Goose Consulting LLP | | 2023 |