| Fragrant Earth Ltd | Information & communication | 2010 |
| Fraiche Design Ltd | Professional & scientific | 2022 |
| Fraser Street Properties Limited | Real estate | 2011 |
| Freelston Ltd | Real estate | 2016 |
| Freeman Financial Ltd | Professional & scientific | 2019 |
| Freemunce Ltd | Real estate | 2020 |
| Freemunce Renewal Park Ltd | Real estate | 2022 |
| Frictional Limited | Professional & scientific | 2024 |
| Fruitline Limited | Wholesale & retail | 2018 |
| Full Fusion HR Ltd | Professional & scientific | 2025 |
| FULLMOON42 Ltd | Hospitality | 2020 |
| Future Forests Ltd | Agriculture & fishing | 2010 |
| Future Property Solutions Limited | Real estate | 2007 |
| Futurist Ltd | Other services | 2025 |
| G D Smith Limited | Construction | 2002 |
| G&D Spirits Ltd | Wholesale & retail | 2025 |
| G.A. Beaton Limited | Real estate | 1932 |
| G1 Productions Ltd | Information & communication | 2021 |
| Gaea Science Ltd | Professional & scientific | 2021 |
| Galaxy Horseboxes Limited | Manufacturing | 2002 |
| Gapper Holdings Ltd | Real estate | 2022 |
| Gardens Coffee Ltd | Hospitality | 2018 |
| Garwood Heritage Limited | Real estate | 2025 |
| Gary Squire Electrical Limited | Energy | 2004 |
| Gatenby Media Ltd | Extraterritorial | 2022 |
| Gatenby Services Limited | Information & communication | 2003 |
| Gatenby Tech Ltd | Information & communication | 2024 |
| GB Support Limited | Information & communication | 2012 |
| Gemini Electrics Limited | Construction | 2007 |
| Gemini Self Drive Ltd | Administrative & support | 2005 |
| Geminids Limited | Professional & scientific | 2014 |
| Geo-Logic Site Investigations Limited | Professional & scientific | 2023 |
| GET Badged Ltd | Professional & scientific | 2019 |
| GH Power Engineering Ltd | Construction | 2024 |
| Gilsenan LEE Limited | Professional & scientific | 2021 |
| GIN O Clock Limited | Hospitality | 2019 |
| Ginger Peanut Limited | Hospitality | 2017 |
| Give US This Day OUR Daily Bread Ltd | Transport & logistics | 2026 |
| GJ Stats Ltd | Information & communication | 2021 |
| GJP Enterprises Limited | Wholesale & retail | 2019 |
| Glamour & Grooming Ltd | Other services | 2016 |
| Glamping on the Hill Ltd | Hospitality | 2016 |
| Glandfield Quarry Consultancy Ltd | Professional & scientific | 2019 |
| Glandover Travel Limited | Administrative & support | 2000 |
| Glastonbury Limited | Extraterritorial | 2014 |
| Glazerite Limited | Construction | 2001 |
| Glenavon Technology Limited | Information & communication | 2014 |
| GMP Electrical Ltd | Construction | 2024 |
| GMR Contracts Ltd | Construction | 2023 |
| Gmrprojects Ltd | Construction | 2016 |
| Godney Trading Services Ltd | Professional & scientific | 2026 |
| Gokul Assets Limited | Real estate | 2020 |
| Gold Seal Project | Education | 2005 |
| Goldmicro Limited | Information & communication | 1994 |
| Goodfellows Limited | Hospitality | 2009 |
| Goodspace Limited | Other services | 2002 |
| Gorge & Gauges Ltd | Wholesale & retail | 2025 |
| Gough Music Limited | Arts & recreation | 2015 |
| Graceful Hospitality Limited | Hospitality | 2024 |
| Graham & Edmonds Limited | Construction | 2018 |
| Graham Chant (Drywall Jointing) Limited | Construction | 2005 |
| Grange Park Residential Ltd | Real estate | 2018 |
| Grange Park Securities Limited | Construction | 1980 |
| Grape Estates Limited | Real estate | 2003 |
| Grape to Shelf Consulting Ltd | Information & communication | 2006 |
| Gravvis Ltd | Wholesale & retail | 2024 |
| Green Hare Consulting Limited | Professional & scientific | 2018 |
| Green Sense Events Ltd | Administrative & support | 2020 |
| Greenacres HB Limited | Extraterritorial | 2026 |
| Greenfield Therapies Ltd | Health & social care | 2019 |
| Greenhawk Studios Limited | Construction | 2025 |
| Gridimp Ltd | Professional & scientific | 2011 |
| Griffiths Brothers Properties Limited | Real estate | 2001 |
| Growing Roots Community Interest Company | Agriculture & fishing | 2013 |
| Gt&I Limited | Professional & scientific | 2011 |
| Gully’S Commercial Cleaning Services Ltd | Administrative & support | 2026 |
| GW Training Ltd | Arts & recreation | 2025 |
| Gwen & Grace Ltd | Extraterritorial | 2020 |
| H L Stott & Sons Contracting Ltd | Agriculture & fishing | 2013 |
| H.B. & P. Limited | Other services | 1990 |
| H.M. Heywood & Sons | Agriculture & fishing | 1970 |
| Haben Heating Ltd | Wholesale & retail | 2008 |
| Haccem Ltd | Hospitality | 2019 |
| Hackworthy Ltd | Agriculture & fishing | 2020 |
| Hale's Building Contractors Ltd | Real estate | 2018 |
| Hamilton Public Relations Ltd | Professional & scientific | 2008 |
| Hammond International Limited | Construction | 2025 |
| Hann Farming Ltd | Agriculture & fishing | 2015 |
| Harper Horizons Ltd | Education | 2024 |
| Harrier DLI Land Tech Ltd | Other services | 2022 |
| Harriet Andrew Ltd | Professional & scientific | 2019 |
| Harriet Lyall Ltd | Professional & scientific | 2019 |
| Harris & Harris Consultancy Ltd | Professional & scientific | 2012 |
| Harris & Harris Legal Services LLP | | 2016 |
| Harris Heating Somerset Ltd | Construction | 2025 |
| Harris Property Investments (SW) Ltd | Real estate | 2023 |
| Hassium Limited | Real estate | 2021 |
| Hatat Properties Limited | Real estate | 2023 |
| Hatat Rentals Ltd | Wholesale & retail | 2021 |
| Hatat Solutions Ltd | Professional & scientific | 2021 |