| FUNDING52 Limited | Professional & scientific | 2021 |
| Funtasia Entertainment Limited | Arts & recreation | 2005 |
| Furlong Tyres Limited | Wholesale & retail | 2018 |
| Furnham House (Chard) Limited | Real estate | 1976 |
| Further Education Partnership Limited | Administrative & support | 2016 |
| Fusion Fostering Limited | Other services | 2011 |
| Fusion Independence Limited | Health & social care | 2011 |
| Fusion Recruitment Services Limited | Administrative & support | 2006 |
| Future Art Limited | Arts & recreation | 2006 |
| Futurespace Limited | Administrative & support | 2000 |
| FY2 London Limited | Education | 2025 |
| G & a General Building Ltd | Construction | 2026 |
| G & a Properties (Bath) Ltd | Real estate | 2023 |
| G & C Symonds Ltd | Real estate | 2020 |
| G & R House Limited | Agriculture & fishing | 2007 |
| G a Doble (Civil Engineering) Limited | Construction | 2001 |
| G a Helliar and SON Limited | Administrative & support | 2001 |
| G E S UK Consultancy Limited | Administrative & support | 2015 |
| G Pople & Sons Limited | Agriculture & fishing | 2017 |
| G W Crate Holdings Limited | Financial services | 2025 |
| G W Crate Limited | Manufacturing | 2018 |
| G W Crate Properties Limited | Real estate | 2025 |
| G&A Commercials (Bridport) Ltd | Wholesale & retail | 2011 |
| G&F Lounge Limited | Hospitality | 2024 |
| G&G Bros Ltd | Other services | 2020 |
| G&G13 Limited | Information & communication | 2022 |
| G.J. Pollard Limited | Construction | 2001 |
| G2 Metric Limited | Manufacturing | 2009 |
| Gables Residential Home Limited | Health & social care | 1997 |
| Gaddipati Services Ltd | Health & social care | 2018 |
| Galiant Health Care Limited | Health & social care | 2018 |
| Gallop Guru Limited | Wholesale & retail | 2015 |
| Gamedics Ltd | Health & social care | 2026 |
| Garador Holdings Limited | Manufacturing | 1999 |
| Gareth Hughes Design Ltd | Administrative & support | 2012 |
| Gareth Webb & Co LLP | | 2010 |
| Garrett Commercials Limited | Wholesale & retail | 2004 |
| Garvey Knowledge Group Ltd | Information & communication | 2024 |
| Gary Pyner Frames Limited | Other services | 2018 |
| Gashi Barber Limited | Real estate | 2026 |
| Gasmart Southwest Limited | Construction | 2018 |
| Gather Technology Ltd | Information & communication | 2014 |
| GD and WB Properties Limited | Construction | 2014 |
| GD House Clearance Limited | Wholesale & retail | 2025 |
| Geared UP Limited | Extraterritorial | 2010 |
| Gents of Yeovil Barber Ltd | Other services | 2024 |
| Gerald Hallett Limited | Wholesale & retail | 2003 |
| GET Closa Trading Limited | Wholesale & retail | 2026 |
| Ghadz Pinoy Products Limited | Wholesale & retail | 2025 |
| Gibbs and Johnson Limited | Wholesale & retail | 2023 |
| Gibgor Limited | Construction | 2012 |
| Gigg Agri Services Ltd | Administrative & support | 2019 |
| Gilbert Build Co. Limited | Construction | 2025 |
| Gilver Ltd | Real estate | 2026 |
| Glam LAB Fashions Ltd | Wholesale & retail | 2025 |
| Glanteifion Limited | Administrative & support | 1998 |
| Glassneat Limited | Wholesale & retail | 1984 |
| Glazing Solutions South West Limited | Construction | 2022 |
| Global Product Supplies Ltd | Wholesale & retail | 2006 |
| Global Therapy Training Ltd | Education | 2025 |
| Globaltech Resources Ltd | Administrative & support | 2015 |
| Glorious Mono Productions Limited | Administrative & support | 2016 |
| Glossgate Ltd | Administrative & support | 1997 |
| Glover Grooming Limited | Wholesale & retail | 2026 |
| Glover Weiss Grooming Limited | Wholesale & retail | 2026 |
| Glovers Group Limited | Extraterritorial | 2018 |
| Gloverscast Community Interest Company | Information & communication | 2025 |
| Glow Aura Studio Limited | Other services | 2026 |
| Glugable Ltd | Information & communication | 2015 |
| GMR Couriers Limited | Transport & logistics | 2011 |
| GMW Holdings Limited | Financial services | 2024 |
| GNC Associates Limited | Professional & scientific | 2004 |
| Go Demand Limited | Professional & scientific | 2013 |
| Goatacre Manor Care Limited | Health & social care | 2012 |
| Godasain Limited | Wholesale & retail | 2025 |
| Golden Flower River Ltd | Hospitality | 2024 |
| Golden Moon Ltd | Hospitality | 2020 |
| Goldfinch Representation Ltd | Wholesale & retail | 2025 |
| Goldstar Onboard Ltd | Manufacturing | 2007 |
| Goldwinter Ltd | Wholesale & retail | 2016 |
| Gomaster Limited | Professional & scientific | 1996 |
| Goodboygearonline Ltd | Wholesale & retail | 2023 |
| Goodey International Consultancy Ltd | Professional & scientific | 2023 |
| Goodliff Limited | Real estate | 2004 |
| Goose AI Limited | Information & communication | 2021 |
| Gooseacre Court Management Company Limited | Households | 1983 |
| Gouter Developments Limited | Construction | 2017 |
| Gower Fusion Limited | Information & communication | 2020 |
| Gower SB Limited | Information & communication | 2002 |
| Gpresswellpt Ltd | Other services | 2025 |
| Graham Holland Limited | Wholesale & retail | 2005 |
| Grahams Windows & Doors Ltd | Construction | 2020 |
| Gray Care Limited | Other services | 2017 |
| Graypole Ltd | Construction | 2022 |
| Great Frames Ltd | Wholesale & retail | 2023 |
| Greatstar United Kingdom Ltd | Wholesale & retail | 2023 |
| Green Deer Limited | Hospitality | 2007 |
| Green Shop European Ltd | Wholesale & retail | 2024 |
| Greenford Property Management Limited | Households | 2019 |
| Greensmith-Esg Limited | Manufacturing | 2025 |