| Fade Away Hair Studio Limited | Other services | 2025 |
| Family Asian Grocery Ltd | Wholesale & retail | 2025 |
| FCR Eco Ltd | Construction | 2025 |
| Fightticket Ltd | Information & communication | 2022 |
| Finer Forage Ltd | Manufacturing | 2021 |
| First 4 Cars Ltd | Wholesale & retail | 2015 |
| First Prize Games Limited | Arts & recreation | 1996 |
| Firstage Limited | Construction | 1987 |
| Fisher Wilson Limited | Real estate | 1999 |
| Fishram Limited | Real estate | 2019 |
| Fixed 365 Ltd | Construction | 2022 |
| Flakkyventures Limited | Wholesale & retail | 2025 |
| Flintshire Waste Management and Recycling Services Limited | Extraterritorial | 1997 |
| Flippin Burgers Emporium Limited | Hospitality | 2025 |
| Fone Itech PVT Ltd | Wholesale & retail | 2022 |
| Footcare (GB) Limited | Health & social care | 1998 |
| Formula K Products Limited | Manufacturing | 2011 |
| Foster Care Values Limited | Health & social care | 2013 |
| Fratelli Sports Ltd | Wholesale & retail | 2020 |
| Fred Weston (Electrical Contractors) Limited | Construction | 1961 |
| Free Eco Grants Ltd | Construction | 2022 |
| Frith Retail Limited | Wholesale & retail | 2020 |
| G Goddard Distribution Ltd | Wholesale & retail | 2026 |
| G L Electrical Solutions Limited | Other services | 2006 |
| G Powell Construction Ltd | Construction | 2026 |
| G.H. Frith (Cannock) Limited | Wholesale & retail | 2009 |
| Games Box Leisure Ltd | Real estate | 2014 |
| Gamlins Law Limited | Professional & scientific | 2004 |
| GAO Ltd | Wholesale & retail | 2009 |
| Garden World Limited | Extraterritorial | 2017 |
| Gareth Hicks Ltd | Professional & scientific | 2014 |
| Gasmanuk Ltd | Health & social care | 2019 |
| Gateway Marketing House Ltd | Wholesale & retail | 2013 |
| GAZ Gee's Martial Arts Ltd | Education | 2020 |
| GE Motors & SON Limited | Wholesale & retail | 2026 |
| Gematex Limited | Professional & scientific | 2019 |
| Giftware Company Limited | Extraterritorial | 2024 |
| Gintor Ltd | Hospitality | 2025 |
| Glan Aber Auto Repairs Limited | Wholesale & retail | 2009 |
| Glan Morfa Cycling Association (Marsh Tracks) Limited | Arts & recreation | 2010 |
| Glan Y DON Ltd | Health & social care | 2020 |
| Glazetech Ltd | Construction | 2023 |
| Gleam Team NW Limited | Wholesale & retail | 2013 |
| Glendower Court (Rhyl) Limited | Households | 1972 |
| Global Retail Trading Limited | Wholesale & retail | 2018 |
| Glow HQ Ltd | Other services | 2025 |
| Glyn Lloyd & Sons Ltd | Construction | 1985 |
| GNB Property Limited | Construction | 2024 |
| Godfathers Takeaway Limited | Extraterritorial | 2018 |
| Golden Bay 168 Ltd | Hospitality | 2024 |
| Golden City Conwy Limited | Hospitality | 2014 |
| Golden Dinner Limited | Hospitality | 2025 |
| Golden Glorious @ Ltd | Wholesale & retail | 2025 |
| Golden Lotus NW Limited | Hospitality | 2018 |
| Good News in the Community C.I.C. | Hospitality | 2021 |
| Goulborn Collection Limited | Wholesale & retail | 2003 |
| Graham's GAS Services Ltd | Construction | 2021 |
| Grapple Wars Ltd | Arts & recreation | 2023 |
| Great Wall Abergele Limited | Hospitality | 2014 |
| Green Energy Solar and Electrical Ltd | Construction | 2025 |
| Green Label Renewables Limited | Professional & scientific | 2022 |
| Green PEA Estates Limited | Real estate | 2015 |
| Grisedale Limited | Hospitality | 2017 |
| Groovy Detailing NW Ltd. | Administrative & support | 2025 |
| Grosvenor Construction Holdings Ltd | Real estate | 2026 |
| Grosvenor Construction Limited | Construction | 2009 |
| Grosvenor Masonry Limited | Manufacturing | 2023 |
| Gwasg Helygain Limited | Manufacturing | 1996 |
| H Waltham Properties Limited | Real estate | 2024 |
| H. B. Leisure Holdings Ltd. | Professional & scientific | 1959 |
| H. B. Leisure Ltd. | Arts & recreation | 1960 |
| H. Burt (Rentals) Limited | Arts & recreation | 1963 |
| H.B.Leisure Arcades Limited | Administrative & support | 1965 |
| Haddon Group Ltd | Financial services | 2021 |
| Haigh Commercial Properties Holdings Limited | Construction | 2026 |
| Haigh Coombes Limited | Extraterritorial | 2021 |
| Haigh Developments Limited | Real estate | 2019 |
| Haigh Developments RP Limited | Construction | 2019 |
| Haigh Residential Properties Holdings Limited | Construction | 2026 |
| Hair by Raynor Limited | Other services | 2025 |
| Hair Pro Extensions Ltd | Wholesale & retail | 2025 |
| Hallavia Energy Ltd | Professional & scientific | 2025 |
| Handbridge Consult Limited | Financial services | 2025 |
| Hannah & Hope Ltd | Health & social care | 2018 |
| Hannah James Associates Ltd | Professional & scientific | 2013 |
| Happy Seasons Liverpool Limited | Hospitality | 2011 |
| Hard Drive Limited | Manufacturing | 2023 |
| Harleysmeliden Ltd | Hospitality | 2022 |
| Harold Jones Removals & Storage Ltd | Transport & logistics | 2020 |
| Harry's Convenience Store Limited | Wholesale & retail | 2017 |
| Hatenboer Travel Ltd | Administrative & support | 2025 |
| Haughton Grove Limited | Real estate | 2026 |
| Hause of Revive Ltd | Other services | 2024 |
| Haweswater Limited | Hospitality | 2018 |
| HBL (Holdings) Limited | Arts & recreation | 1999 |
| HBL CC Holdco Ltd | Professional & scientific | 2024 |
| Head Candy 2 Ltd | Wholesale & retail | 2026 |
| Headway Consulting Limited | Professional & scientific | 1992 |
| Heart of Home (HOH) Limited | Public administration | 2023 |
| Heather Kierran Industries Ltd | Real estate | 2023 |