| Friar Best Insurance Services Limited | Financial services | 2003 |
| Friends of Alton Station Ltd. | Other services | 2009 |
| Frimley Park Cystic Fibrosis Charity | Health & social care | 1997 |
| Frost Drainage Ltd | Wholesale & retail | 2024 |
| Froxfield Dressage Sales Limited | Agriculture & fishing | 2019 |
| Froxfield Service Centre Limited | Wholesale & retail | 1997 |
| Froxfield Stud Limited | Agriculture & fishing | 2019 |
| Fudge Bros Ltd | Manufacturing | 2012 |
| Fudge Brothers Ltd | Manufacturing | 2012 |
| Fuel Potential Personal Training Academy Limited | Arts & recreation | 2018 |
| Fulcre Partners Ltd | Professional & scientific | 2008 |
| Fuller and Co. Ltd | Administrative & support | 2013 |
| Fullerton-Batten Ltd | Financial services | 2017 |
| Function First Chiropractic Ltd | Health & social care | 2026 |
| Fusion of Masala Ltd | Hospitality | 2024 |
| Fusion Reactors Ltd | Professional & scientific | 2019 |
| Fwag South East LLP | | 2017 |
| Fynbos Ingredients Limited | Wholesale & retail | 2022 |
| G B Body Repairs Ltd | Wholesale & retail | 2014 |
| G&H Maltby Property Investments Ltd | Real estate | 2025 |
| G-Property Limited | Real estate | 2014 |
| G.M. Luff & Partners Limited | Other services | 1986 |
| G2 Digital Video Limited | Manufacturing | 2003 |
| G7CJB Limited | Construction | 2015 |
| Galactic Plant Hire Ltd | Administrative & support | 2024 |
| Galileo Estates Limited | Real estate | 2026 |
| Ganor Freehold Limited | Households | 2013 |
| GAP Africa Projects Limited | Administrative & support | 2010 |
| Garden Partner Limited | Wholesale & retail | 2008 |
| Gareth Lewis Developments Limited | Construction | 2015 |
| GAS Fires Direct Limited | Professional & scientific | 2000 |
| Gate PVT Ltd | Wholesale & retail | 2026 |
| Gaybryl Oncology Ltd | Health & social care | 2017 |
| Gaze Burvill Ltd. | Manufacturing | 1996 |
| GB Electrical Design Engineering Ltd | Professional & scientific | 2026 |
| GBM Plating Services Limited | Administrative & support | 2005 |
| GC Facilities Limited | Construction | 2011 |
| GD Live Limited | Arts & recreation | 2015 |
| GDH Analytics Ltd | Professional & scientific | 2019 |
| GDL Electrical Limited | Construction | 2006 |
| Geomet Limited | Information & communication | 2012 |
| George Maltby LLP | | 2012 |
| Gerdine Properties (NO 1) Limited | Professional & scientific | 2005 |
| Gerdine Properties (NO 2) Limited | Professional & scientific | 2005 |
| GFM Consultants Ltd | Professional & scientific | 2008 |
| Ghost FLY Film Limited | Professional & scientific | 2022 |
| Gibbons Taylor Limited | Professional & scientific | 2014 |
| Gilbert Equity Holdings Ltd | Professional & scientific | 2024 |
| Gillman Drive Train Limited | Administrative & support | 2007 |
| Glassflip Limited | Professional & scientific | 2006 |
| Glassup and Stoski Ltd | Professional & scientific | 2006 |
| Glebe Point (Manchester) Ltd | Professional & scientific | 2013 |
| Glenasmole Investments Ltd | Real estate | 2019 |
| Global Satellite Solutions Limited | Information & communication | 1996 |
| Gloucester Road (T) Hairdressing Limited | Other services | 2020 |
| Glynn H Davies Limited | Professional & scientific | 2017 |
| God's Lions Productions Limited | Information & communication | 2013 |
| Gold and Pawn Ltd | Wholesale & retail | 2004 |
| Golden Chair Ltd | Professional & scientific | 2022 |
| Golden Eyed Panther Ltd | Real estate | 2021 |
| Goldfinch Books Ltd | Wholesale & retail | 2020 |
| Golding & Associates Ltd | Professional & scientific | 1993 |
| Goldpark Recycling Limited | Wholesale & retail | 2025 |
| Golf Utopia Ltd | Arts & recreation | 2025 |
| Good Evans Ltd | Hospitality | 2026 |
| Goodwill Care Group Ltd | Health & social care | 2026 |
| Goodyear 1ST Ltd | Professional & scientific | 2013 |
| Goose & Foundry Ltd | Professional & scientific | 2026 |
| Goring Hardware Limited | Wholesale & retail | 2014 |
| Goring Pet Supplies & Plumbing Limited | Wholesale & retail | 2022 |
| Gosforth Hairdressing Limited | Other services | 2011 |
| Goshawk Systems Limited | Information & communication | 2025 |
| Gossamer Rights Limited | Information & communication | 2026 |
| Gould & Chapman (Funeral Directors) Limited | Other services | 1988 |
| Gra-Knight Limited | Construction | 2006 |
| Graceful Living Care Provider Ltd | Health & social care | 2025 |
| Grange Gardens (Alton) Management Company Limited | Households | 2013 |
| Graphitech Signs & Graphics Limited | Manufacturing | 2020 |
| Grayshott Concerts Production Ltd | Arts & recreation | 2019 |
| Great Grottos Limited | Professional & scientific | 2002 |
| Great Little Company Ltd | Professional & scientific | 2023 |
| Great Shefford Management Company Limited | Households | 1974 |
| Green Concrete Solutions Limited | Construction | 2009 |
| Green Eyed Panther Limited | Other services | 2009 |
| Green Oval Trading Limited | Wholesale & retail | 2018 |
| Green Space Contractors Ltd | Administrative & support | 2013 |
| Green Terrain Solutions Ltd | Construction | 2024 |
| Greensand Group Ltd | Wholesale & retail | 2026 |
| Greet Nest Ltd | Hospitality | 2025 |
| Grenville Systems Development Ltd | Information & communication | 2022 |
| Grey FOX Recycling Eco Ltd | Water & waste | 2024 |
| Grice Ventures Ltd | Professional & scientific | 2019 |
| Groomes LLP | | 2018 |
| Groove Associates Limited | Wholesale & retail | 1968 |
| Groove Media and Entertainment Ltd. | Wholesale & retail | 2013 |
| Groveland Estates Limited | Construction | 1998 |
| Growth Maestro Ltd | Professional & scientific | 2023 |
| GRX Life Limited | Other services | 2017 |
| GSB Developments Ltd | Real estate | 2023 |
| GT Distributors Ltd | Wholesale & retail | 2025 |