| Esperansa C P S Ltd | Other services | 2014 |
| Espresso Lane Ltd | Manufacturing | 2009 |
| Evans & Reid Limited | Manufacturing | 1992 |
| Evans Aerotech Ltd | Manufacturing | 2018 |
| Evans Landscapes and Ground Works Ltd | Construction | 2024 |
| Evans&Cosolutions Ltd | Real estate | 2026 |
| Evcr Ltd | Hospitality | 2010 |
| Everclean Exterior Cleaning Ltd | Administrative & support | 2026 |
| Everyday Creations Limited | Wholesale & retail | 2020 |
| Evoe Trading Ltd | Real estate | 2017 |
| Evolve Housing Group Ltd | Real estate | 2024 |
| Evolve Property Rental Ltd | Real estate | 2022 |
| Ewens Stores Limited | Wholesale & retail | 2025 |
| EWR Holdings Limited | Professional & scientific | 2020 |
| Executive Travel London Limited | Transport & logistics | 2018 |
| Express Electrical UK Limited | Construction | 2006 |
| Express Motors Kenfig Hill Limited | Transport & logistics | 2011 |
| Express Pizza(Skewen) Ltd | Hospitality | 2022 |
| Extra Pizza & Kebab Ltd | Hospitality | 2019 |
| F and T Refrigeration Limited | Construction | 1984 |
| F M Logistical Solutions Ltd | Transport & logistics | 2017 |
| F.O.B Entertainment Ltd | Arts & recreation | 2024 |
| Face Box Ltd | Other services | 2023 |
| Fair Choice Cash and Carry Ltd | Wholesale & retail | 2025 |
| Fair Choice Retails Ltd | Wholesale & retail | 2025 |
| Fairwood Engineering Limited | Manufacturing | 2000 |
| Faith Lift Limited | Information & communication | 2022 |
| Family Dog Connection Limited | Other services | 2020 |
| Fantom Factory Ltd | Information & communication | 2018 |
| Fastways Asset Management Ltd | Transport & logistics | 2024 |
| Fathom IT Ltd | Information & communication | 2014 |
| Feather & Talon Ltd | Agriculture & fishing | 2024 |
| Fender Lettings Ltd | Real estate | 2022 |
| Ferndale Architectural Solutions Ltd | Professional & scientific | 2018 |
| Fernlea Accounting Limited | Professional & scientific | 2021 |
| Ferry Balloons and Gifts Ltd | Wholesale & retail | 2022 |
| Ferry Boat Arts CIC | Education | 2025 |
| Ferry House 888 Ltd. | Hospitality | 2016 |
| Ferryjack (Wales) Ltd | Hospitality | 2018 |
| Ffansi Coffee & Co Ltd | Hospitality | 2024 |
| Fforest Developments Limited | Construction | 1992 |
| Fibre Networx CYF. | Information & communication | 2018 |
| Fifty One Productions Ltd. | Information & communication | 2013 |
| Filoli Limited | Professional & scientific | 2025 |
| Find OUR Local Ltd | Professional & scientific | 2020 |
| Fins 'N' Chrome American Car Restoration & Parts Ltd | Wholesale & retail | 2025 |
| Fire Supplies Direct Ltd | Manufacturing | 2015 |
| First Choice Roofing Contracts Ltd | Construction | 2025 |
| First Letting Solutions Limited | Real estate | 2016 |
| First Mortgage Solutions Limited | Financial services | 2020 |
| First Response Roofing & Building Ltd | Construction | 2023 |
| First RS Ltd | Wholesale & retail | 2017 |
| Floorfixed Ltd | Construction | 2025 |
| Florance Skin & Aesthetics Ltd | Other services | 2025 |
| Flottbek Limited | Real estate | 2017 |
| Flow FIX Trades Ltd | Construction | 2025 |
| Flue Depot Ltd | Wholesale & retail | 2024 |
| Fnav (MLM) Limited | Professional & scientific | 2020 |
| Fonz and the Poet Limited | Arts & recreation | 2017 |
| Forkhill Property Investments Ltd | Real estate | 2019 |
| Formagrind Limited | Wholesale & retail | 2002 |
| Forrest and FOX Limited | Professional & scientific | 2016 |
| Fortress Building Services Limited | Construction | 2018 |
| Fortune House 888 Limited | Hospitality | 2026 |
| FOX & Co Jewellery Limited | Wholesale & retail | 2019 |
| FOX Asset Management Limited | Financial services | 2024 |
| Frames & Sculpts Ltd | Wholesale & retail | 2025 |
| Francis John Hair Design Limited | Other services | 2006 |
| Freeman's Beverages Limited | Transport & logistics | 1992 |
| Freezeramp Limited | Real estate | 2003 |
| Fresco Coffee 44 Limited | Hospitality | 2026 |
| Froxfield Village Limited | Construction | 2005 |
| Fulchers Fenestration Ltd | Construction | 2023 |
| Furever Match Ltd | Information & communication | 2026 |
| Fusebox Wales Services Ltd | Construction | 2024 |
| Fusion Property Rentals Limited | Real estate | 2024 |
| Future Alloys Limited | Extraterritorial | 1983 |
| G & C Groundworks & Construction Ltd | Construction | 2018 |
| G & J Property Developments Limited | Real estate | 2016 |
| G Bailey Site Services Limited | Construction | 2009 |
| G L Morgan Holdings Ltd | Financial services | 2022 |
| G Matthews Surveys Ltd | Other services | 2020 |
| G P Hydraulics Limited | Manufacturing | 2000 |
| G Silva Welding Ltd | Manufacturing | 2019 |
| G&A Retail Limited | Wholesale & retail | 2026 |
| G.A. Lane Heating Limited | Construction | 2019 |
| G.M.C. Civils Limited | Construction | 2018 |
| Gainsmore (U.K.) Ltd. | Manufacturing | 1992 |
| Gainsmore Ltd | Administrative & support | 2007 |
| Galileo Property Group Ltd | Real estate | 2025 |
| Gaplec Limited | Construction | 2017 |
| Garden City Garage Ltd | Wholesale & retail | 2020 |
| Garden City Holdings Ltd | Financial services | 2024 |
| Gardens Care Limited | Health & social care | 2010 |
| Gareth Hawkridge Welding Services Ltd | Manufacturing | 2024 |
| Gareth Thomas Music Ltd | Information & communication | 2021 |
| Gareth Waters Properties Limited | Real estate | 2017 |
| GAVJEN15 Limited | Hospitality | 2025 |
| GCH 2023 Limited | Financial services | 2023 |
| GD Physio Ltd | Health & social care | 2023 |