| Funky Moose Ltd | Wholesale & retail | 2005 |
| FUR & Fields Dog Grooming Ltd | Other services | 2026 |
| Furnitureworx Limited | Wholesale & retail | 2009 |
| Fury Factory Limited | Administrative & support | 2024 |
| Fusion (Chertsey) Management Company Limited | Households | 2008 |
| Fusion Fabrication & Welding Ltd | Professional & scientific | 2026 |
| Fusion Fish Bar Limited | Hospitality | 2025 |
| Future Flow Electrical Ltd | Construction | 2016 |
| Futurum Consulting Limited | Information & communication | 2013 |
| Futurum Group Holdings Limited | Financial services | 2021 |
| Fylde Road (Management Company) Ltd | Real estate | 2015 |
| G & S Reeve Holdings Limited | Financial services | 2021 |
| G Accountancy Services Limited | Professional & scientific | 2016 |
| G Carter Footcare Limited | Health & social care | 2017 |
| G J Rooke Forestry Limited | Agriculture & fishing | 2014 |
| G Parson Limited | Health & social care | 2018 |
| G Sharp Tools Limited | Manufacturing | 2010 |
| G&S Operation Ltd | Hospitality | 2019 |
| G-Force Logistics Limited | Administrative & support | 2005 |
| G.I.F. Holding Ltd. | Professional & scientific | 2008 |
| G21 Fine Art Limited | Wholesale & retail | 2025 |
| G2LOGISTICS Ltd | Transport & logistics | 2024 |
| G63 Holdings Ltd | Information & communication | 2022 |
| GA Catering Ltd | Hospitality | 2019 |
| GA Local Limited | Wholesale & retail | 2023 |
| GA WAH 85 Limited | Hospitality | 2024 |
| Gable & Glass Ltd | Construction | 2017 |
| Gable & Glass Systems Ltd | Construction | 2022 |
| Gablesmead Ltd | Professional & scientific | 2001 |
| Gadget Station Limited | Other services | 2019 |
| Gaia Landscapes Ltd | Administrative & support | 2016 |
| Gaia Locum Ltd | Professional & scientific | 2023 |
| Gairloch Group Limited | Administrative & support | 2001 |
| Gales Park Management Company Limited | Households | 2013 |
| Gallaecian Ltd | Wholesale & retail | 2019 |
| Gallagher & Sons Building Co. Ltd | Construction | 2012 |
| Gallaghers Cleaning Limited | Other services | 2015 |
| Gallery 21 Limited | Arts & recreation | 2020 |
| Galvin Consultants Limited | Administrative & support | 2009 |
| Gamebreaker Limited | Professional & scientific | 2010 |
| Gaply Ventures Ltd | Information & communication | 2025 |
| Gardner & Beedle Events Limited | Other services | 2024 |
| Gardner & Beedle Holdings Limited | Real estate | 2023 |
| Gardner & Beedle Ltd | Wholesale & retail | 2021 |
| Garton Property Investments Limited | Real estate | 2017 |
| Gascoigne Park (Milborne Port) Management Company Limited | Households | 2022 |
| Gastrobox Ltd | Hospitality | 2025 |
| Gateguards (UK) Limited | Professional & scientific | 2010 |
| Gatehouse Music Ltd | Arts & recreation | 2019 |
| Gateway Court Management Company Limited | Households | 1973 |
| GAU Ganga Ltd | Wholesale & retail | 2025 |
| Gauss Research Limited | Information & communication | 2022 |
| Gavins Court Management Ltd | Households | 1996 |
| GB Rail Maintenance Limited | Administrative & support | 2007 |
| GBD UK Limited | Professional & scientific | 2006 |
| Gbim Limited | Financial services | 2011 |
| GBS Projects Ltd | Professional & scientific | 2024 |
| GC Holdings (Ledbury) Limited | Real estate | 2020 |
| GCH Kitchens Limited | Construction | 2005 |
| GCJ Property Maintenance Limited | Administrative & support | 2014 |
| GCR Trading Limited | Administrative & support | 2011 |
| GDC (Wilts) Limited | Real estate | 2025 |
| GDM Training and Consultancy Services Limited | Professional & scientific | 2016 |
| GE & JO Limited | Transport & logistics | 2024 |
| Gearforge Ltd | Wholesale & retail | 2025 |
| Gearlink Limited | Wholesale & retail | 2001 |
| Geddington Sports Club Ltd | Arts & recreation | 2025 |
| GEE Williams Developments Ltd | Manufacturing | 2016 |
| GEM FS Limited | Financial services | 2013 |
| GEM Property Limited | Real estate | 2017 |
| Gemtex Heating Solutions Limited | Construction | 2017 |
| General Surgical Care Limited | Health & social care | 2016 |
| General Vehicle Services Limited | Manufacturing | 2015 |
| Generation Consultancy Limited | Professional & scientific | 2022 |
| Genesis Gardens & Landscapes Ltd | Administrative & support | 2024 |
| Geniex Ltd | Information & communication | 2022 |
| Gent Tree Limited | Other services | 2022 |
| Gentle & Gentle Limited | Professional & scientific | 2016 |
| Gentle Endings Direct Cremations Ltd | Other services | 2022 |
| Gentle Endings Funerals Ltd | Other services | 2025 |
| Gentle Endings Natural Burials Ltd | Other services | 2022 |
| GEO 10 Ltd | Real estate | 2019 |
| Geoff Marsh Studio Limited | Professional & scientific | 2021 |
| Geoff Swan Limited | Arts & recreation | 2017 |
| Geoffrey M. Feltham Ltd. | Administrative & support | 2003 |
| George a Mogridge Ltd | Agriculture & fishing | 2003 |
| George Barclay England Limited | Manufacturing | 2020 |
| George Brodie Ltd | Real estate | 2024 |
| Georgetown (Merthyr Tydfil) Management Company Limited | Households | 2007 |
| Geosolutions Group Ltd | Professional & scientific | 2025 |
| Geotel Solutions Limited | Information & communication | 2007 |
| Gerald Conveyance Ltd | Transport & logistics | 2025 |
| Germstar UK Limited | Wholesale & retail | 2014 |
| Gershon Logistics Ltd | Transport & logistics | 2020 |
| GET Handson Limited | Construction | 2021 |
| GET Involved Partnership Limited | Professional & scientific | 2016 |
| GET OUT and Trek Ltd | Administrative & support | 2025 |
| GG-370-505 Limited | Real estate | 2021 |
| Ghost Creatives Ltd | Information & communication | 2018 |
| Ghosties Ltd | Wholesale & retail | 2026 |