| Friday Project Ltd | Professional & scientific | 2024 |
| Friends of Kipkelion | Health & social care | 2020 |
| Frimpong TM Ltd | Construction | 2022 |
| Friston House Management (Richmond) Limited | Households | 1990 |
| Frmtwo Ltd | Professional & scientific | 2016 |
| Frobenius Software Ltd | Information & communication | 2021 |
| Fronesys Data Limited | Professional & scientific | 2014 |
| Fronesys Ltd | Professional & scientific | 2011 |
| Frontline Functional Fitness Ltd | Arts & recreation | 2024 |
| Frontline Music Ltd | Information & communication | 2003 |
| Frost Inc Limited | Information & communication | 2011 |
| FRP Trading Limited | Wholesale & retail | 2024 |
| Full Scope Service Agency Ltd | Real estate | 2022 |
| Funeral Documentary Ltd | Information & communication | 2020 |
| Funk Enterprise Ltd | Arts & recreation | 2019 |
| Funvalley Assured Tenancy Limited | Real estate | 1989 |
| Funview Limited | Information & communication | 1988 |
| Fury Design Agency Limited | Professional & scientific | 2009 |
| Fury Production Ltd | Extraterritorial | 2017 |
| Fusefabric Limited | Information & communication | 2020 |
| Future and Partners LLP | | 2024 |
| Future Master Craftsmen Limited | Extraterritorial | 2014 |
| Future PUB Co Limited | Hospitality | 2016 |
| Future Transport Hubs Ltd | Real estate | 2019 |
| G G Lucas Ltd | Professional & scientific | 2005 |
| G Redon Ltd | Administrative & support | 2015 |
| G Robinson Properties Ltd | Real estate | 2024 |
| G. & M. Westgarth Limited | Agriculture & fishing | 1996 |
| G. O. DEC Ltd | Construction | 2011 |
| G.C.S. Johnson (Storage & Handling) Limited | Transport & logistics | 1999 |
| G.W. Shaw of Richmond, Yorks. (Holdings) Limited | Real estate | 1970 |
| Gaabs Ltd | Construction | 2026 |
| Gabi DA Rocha Interiors Limited | Manufacturing | 2015 |
| Gabriel Court Management Limited | Households | 2018 |
| Gadget Box London Ltd | Wholesale & retail | 2026 |
| Gaha & Sons Ltd | Real estate | 2025 |
| Gail Kenny Executive Recruitment Limited | Administrative & support | 2004 |
| Gainsborough Residents' Association Limited | Households | 1978 |
| Gairapy Limited | Other services | 2013 |
| Gaius LLP AS Trustee of the Travellers Trust | | 2023 |
| Galatea Associates Ltd | Information & communication | 2012 |
| Galaxy Estate Partners Limited | Real estate | 2021 |
| Gallagher Sales Consultancy & Training Limited | Other services | 2013 |
| Gallowgate Motors Ltd | Wholesale & retail | 2005 |
| Gamechanger Technologies Limited | Extraterritorial | 2015 |
| Garden Couture Limited | Professional & scientific | 2013 |
| Garden Exposures Photo Library Limited | Extraterritorial | 2001 |
| Garden Guide Limited | Administrative & support | 2020 |
| GARDENING123 Limited | Administrative & support | 2026 |
| Gareth Moger Data Services Ltd | Information & communication | 2020 |
| Garja Limited | Other services | 2020 |
| Garja Properties Limited | Real estate | 2018 |
| Garland and Garland Trading Company Limited | Wholesale & retail | 2020 |
| Garrick House (Hampton Hill) Residents Management Company Limited | Households | 2018 |
| Garser Ltd | Real estate | 2025 |
| Garth Building and Joinery Ltd | Construction | 2026 |
| GAS Safe Center Ltd | Construction | 2025 |
| Gate 8 Pictures Limited | Information & communication | 2018 |
| Gatekeeper Solutions Limited | Other services | 2018 |
| Gates of Cerberus Ltd | Hospitality | 2024 |
| Gatherley Developments Ltd | Construction | 2015 |
| Gatherley Equestrian Ltd | Arts & recreation | 2012 |
| Gavin Green Limited | Arts & recreation | 2002 |
| GB Mmat Group Ltd | Professional & scientific | 2024 |
| GB Yorkshire Properties Ltd | Real estate | 2022 |
| GBI Maritime Ventures Ltd | Manufacturing | 2020 |
| Gbolt Scaffolding Ltd | Construction | 2020 |
| GC Gynaecological Histopathology Consultancy Limited | Health & social care | 2015 |
| GCA Glow Enterprises Limited | Professional & scientific | 2007 |
| Gcssystems Limited | Information & communication | 2018 |
| GD Global Consulting Limited | Professional & scientific | 2025 |
| GDB Estates Limited | Real estate | 2020 |
| Gearbox Gurus Ltd | Wholesale & retail | 2023 |
| Gecadis Two Management Limited | Administrative & support | 2019 |
| Gegason Limited | Real estate | 2026 |
| Gekko Creative Limited | Administrative & support | 2006 |
| Gembee Trading Ltd | Wholesale & retail | 2025 |
| Gene Talent BIO Limited | Administrative & support | 2024 |
| Genesis IT Limited | Information & communication | 2010 |
| Genetic Microdevices Limited | Manufacturing | 2005 |
| Genprop Services Ltd | Real estate | 2019 |
| Gentianes Solutions Ltd | Administrative & support | 2009 |
| Gentoo Sailing Team Limited | Arts & recreation | 2022 |
| Gents of Richmond 2 Ltd | Other services | 2025 |
| Gents of Richmond Limited | Other services | 2019 |
| GEO Environmental Drilling Limited | Administrative & support | 2007 |
| George & Dragon (Hudswell) Ltd | Hospitality | 2026 |
| George W. Barker Limited | Agriculture & fishing | 1978 |
| GER Management Ltd | Real estate | 2021 |
| Gerald Becker Consulting Limited | Financial services | 2014 |
| Gerere Management Limited | Households | 2026 |
| Gerrard Dynamix Limited | Other services | 2024 |
| GET London Transfer Ltd | Transport & logistics | 2025 |
| GET Strong Physiotherapy & Osteopathy Ltd | Other services | 2018 |
| Ghefa 3 Limited | Information & communication | 2013 |
| Ghosst Housse Ltd | Wholesale & retail | 2013 |
| Gibsons Tiling Services Limited | Construction | 2011 |
| GID Enterprises Ltd | Wholesale & retail | 2010 |
| Giggle & Play Toys Ltd | Wholesale & retail | 2025 |
| Gijima Consulting Limited | Professional & scientific | 2019 |