| FHJ Computer Support Limited | Information & communication | 2016 |
| Field Fresh Trading Ltd | Other services | 2017 |
| Filikci Dessert Ltd | Hospitality | 2025 |
| Fincate Ltd | Education | 2021 |
| Find Yours Brands Ltd | Financial services | 2024 |
| Finebridge Consulting Limited | Professional & scientific | 2014 |
| Finesse Tooling Ltd | Wholesale & retail | 2021 |
| Firbrook Ltd | Wholesale & retail | 2024 |
| Fire and Frost Ltd | Wholesale & retail | 2023 |
| Fire Misting Ltd | Construction | 2018 |
| Fire Suppression Supplies Ltd | Manufacturing | 2019 |
| Firebird 2026 Limited | Financial services | 2025 |
| Firebrand Finance Ltd | Professional & scientific | 2020 |
| Fitzworth Ltd | Professional & scientific | 2016 |
| Fleet Evolve Ltd | Information & communication | 2019 |
| Flintshare Community Supported Agriculture Ltd | Agriculture & fishing | 2010 |
| Flintshire Local Voluntary Council | Administrative & support | 1997 |
| Flintshire Properties Limited | Hospitality | 2002 |
| Flintshire Workwear Ltd | Manufacturing | 2023 |
| Flookersbrook Veterinary Centre Limited | Professional & scientific | 2006 |
| Focusfotos UK Limited | Professional & scientific | 2016 |
| Fong FAT & Sons Ltd | Hospitality | 2017 |
| Food Tech Support Limited | Professional & scientific | 2009 |
| Fordley Laminated Notices Limited | Manufacturing | 1983 |
| Forensic Guardian Ltd | Professional & scientific | 2012 |
| Forlad Limited | Other services | 2002 |
| Formula Elite Travel Limited | Transport & logistics | 2021 |
| Four Brothers Real Estate Limited | Real estate | 2024 |
| Foxbury Developments Limited | Construction | 2003 |
| FPC01 Limited | Real estate | 2024 |
| FR8 Audio Limited | Manufacturing | 2025 |
| Frank's Glamping Farm Limited | Hospitality | 2023 |
| Freedom Land Developments Ltd | Construction | 2006 |
| Freeth Financial Consultancy Limited | Professional & scientific | 2022 |
| Fron Farm Caravan Park Limited | Hospitality | 2013 |
| Fuel Doctor North Wales Limited | Wholesale & retail | 2012 |
| Future Projects Consultancy Limited | Professional & scientific | 1999 |
| FYB Consulting Ltd | Agriculture & fishing | 2010 |
| G & M Davies Limited | Manufacturing | 2010 |
| G & P Energy Limited Liability Partnership | | 2002 |
| G W Lewis & Sons Ltd | Transport & logistics | 2017 |
| G W R Trading Limited | Wholesale & retail | 2003 |
| G&M Plastering and Property Maintenance Limited | Construction | 2019 |
| G. T. M. Flooring Limited | Construction | 2009 |
| G.J Marchant Trading Limited | Construction | 2016 |
| G.R Joinery Ltd | Manufacturing | 2023 |
| Gajamano Ltd | Wholesale & retail | 2024 |
| Garmon Limited | Construction | 2020 |
| GAS Lane Motor Services Ltd | Wholesale & retail | 2024 |
| Gatewen LGV Training Limited | Transport & logistics | 2016 |
| Gcateg Ltd | Professional & scientific | 2023 |
| Gearbox Developments Limited | Wholesale & retail | 2016 |
| Gearhooks Limited | Wholesale & retail | 2017 |
| GEL Engineering and Welding Ltd | Professional & scientific | 2024 |
| George Morgan Holdings Limited | Manufacturing | 2015 |
| GET Green Deals Limited | Administrative & support | 2012 |
| Gida Ltd | Professional & scientific | 2018 |
| GIS Development Ltd | Information & communication | 2015 |
| Give a FIG Hideaways Ltd | Hospitality | 2021 |
| GJJ Properties Limited | Real estate | 2022 |
| GKD Pubs Ltd | Hospitality | 2025 |
| Glennwrites Limited | Information & communication | 2023 |
| Global Bottling Limited | Manufacturing | 2024 |
| Global Power Service Ltd | Professional & scientific | 2021 |
| Global Search RC Limited | Administrative & support | 2020 |
| GMJ Cladding Ltd | Construction | 2018 |
| Godl Ltd | Professional & scientific | 2026 |
| Gofal Seren CIC | Health & social care | 2024 |
| Goochbutler Consulting Ltd | Professional & scientific | 2015 |
| Gooseberry Moon Ltd | Professional & scientific | 2025 |
| Gors Hydro CYF | Energy | 2012 |
| GP Fire & Security Limited | Construction | 2003 |
| GPJ Business Solutions Limited | Professional & scientific | 2020 |
| GPJ Developments Limited | Real estate | 2016 |
| GPJ Ltd | Construction | 2017 |
| Graham Cuckson Joinery Limited | Construction | 2015 |
| Green at Heart Limited | Professional & scientific | 2017 |
| Greenfield Valley Trading CIC | Hospitality | 2025 |
| Greenoak Management Ltd | Professional & scientific | 2025 |
| Gregson Solutions Limited | Administrative & support | 2016 |
| Greta Garry Interiors Ltd | Professional & scientific | 2024 |
| Grey Goose Chimney Sweep Limited | Administrative & support | 2025 |
| Greystone Rook Ltd | Professional & scientific | 2020 |
| Griffiths Delivery Service Limited | Transport & logistics | 2025 |
| Griffiths Groundworks Civils Ltd | Construction | 2017 |
| Griffiths Groundworks Ltd | Administrative & support | 2014 |
| Grosvenor (Northop) Limited | Households | 2022 |
| Grosvenor 8 Ltd | Administrative & support | 2017 |
| Grosvenor Properties NW Ltd | Real estate | 2026 |
| Grosvenor Therapies Limited | Health & social care | 2019 |
| GROW4 Ltd | Information & communication | 2014 |
| Gruffydd Developments Ltd | Construction | 2019 |
| GS Plant & Groundwork Ltd | Construction | 2025 |
| Gscs Property Ltd | Financial services | 2019 |
| GSM Property Group Ltd | Real estate | 2025 |
| Guardian Protection Fire & Security Ltd | Administrative & support | 2022 |
| GUY Salmon Consultancy Limited | Administrative & support | 2013 |
| Gwynedd Distributors Limited | Wholesale & retail | 2019 |
| Gwynfa Limited | Real estate | 2022 |
| Gwysaney Luxury Barns Limited | Hospitality | 2026 |