| Gifft Group Limited | Financial services | 2023 |
| Gifft Hydroponic C.I.C. | Manufacturing | 2025 |
| Gifft Hydroponic Food Group Limited | Agriculture & fishing | 2024 |
| Gifft Properties Ltd | Real estate | 2024 |
| Gift Properties Ltd | Real estate | 2024 |
| Gift Studio Ltd | Wholesale & retail | 2021 |
| GIG Buddies Exeter CIC | Health & social care | 2024 |
| GIL Properties Ltd | Real estate | 2018 |
| GIL Rooms Ltd | Real estate | 2025 |
| Gilbert Film Production Services Ltd | Information & communication | 2017 |
| Gilbert Motor Services Ltd | Wholesale & retail | 2020 |
| Gilbert Stephens LLP | | 2010 |
| Gilders Kinver Property Limited | Real estate | 2025 |
| Gildpoint Limited | Professional & scientific | 1979 |
| Gildrew Limited | Information & communication | 2013 |
| Gilly Markham Travel Counsellors Limited | Administrative & support | 2015 |
| Gilpin Demolition Group Limited | Professional & scientific | 2011 |
| Gilpin Environmental Ltd | Construction | 1992 |
| Gilpin Marine and Plant Hire Ltd | Administrative & support | 2012 |
| Gilpin Scrap Metals Limited | Wholesale & retail | 2012 |
| GIN Kitchen Limited | Manufacturing | 2016 |
| Ginger Rebels Ltd | Professional & scientific | 2026 |
| Ginkgo Holdings Limited | Real estate | 2020 |
| Giotto Engineering (Projects) Limited | Financial services | 1997 |
| Giotto Engineering Limited | Professional & scientific | 1992 |
| Giritri Properties Ltd | Real estate | 2023 |
| Girvin Property Solutions Limited | Real estate | 2020 |
| Gissons Limited | Hospitality | 2006 |
| Givingwise Ltd | Professional & scientific | 2021 |
| GJ Capital Limited | Real estate | 2017 |
| GJ Developments Ltd | Construction | 2018 |
| GJR Conservation Ltd | Professional & scientific | 2013 |
| GK Signs & Screenprint Limited | Manufacturing | 2011 |
| GK Signs (West) Ltd | Manufacturing | 2022 |
| Glampville Limited | Hospitality | 2010 |
| Glass Fast Ltd | Construction | 2017 |
| Glass HUE Ltd | Information & communication | 2019 |
| GLB Personnel Services Limited | Professional & scientific | 2002 |
| GLE Commercial Ltd | Professional & scientific | 2023 |
| Gleam Marketing Ltd | Professional & scientific | 2024 |
| Gleave Media Limited | Information & communication | 2013 |
| Glebe Farm Energy Limited | Energy | 2024 |
| Glebe Management (Thorverton) Limited | Households | 1979 |
| Glencoe Residents Limited | Households | 1975 |
| Glenholt Limited | Hospitality | 1952 |
| Glenn Property & Developments Ltd | Real estate | 2024 |
| Glenshield Ltd | Other services | 2016 |
| Glide Media South West Ltd | Professional & scientific | 2023 |
| Glisten Window Cleaning Ltd | Administrative & support | 2023 |
| Glitch Esports Ltd | Arts & recreation | 2025 |
| Glitzy Girls BAP Shack Ltd | Hospitality | 2025 |
| GLM Trading Limited | Other services | 1995 |
| Global City Futures Holdings Ltd | Financial services | 2026 |
| Global City Futures Limited | Administrative & support | 2017 |
| Global HT Limited | Professional & scientific | 2013 |
| Global Marine Consulting Ltd | Professional & scientific | 2022 |
| Global Newbuilds Ltd | Wholesale & retail | 2010 |
| Global Precision Engineering Limited | Manufacturing | 2013 |
| Global Refrigeration (SW) Limited | Construction | 2004 |
| Global Seawood Yachts Limited | Transport & logistics | 2021 |
| Global Services (Europe) Ltd | Wholesale & retail | 2010 |
| Globe Backpackers Limited | Hospitality | 2014 |
| Globe English Centre Ltd | Education | 2020 |
| Globe Summer Centre Ltd | Education | 2022 |
| Globefield Press Limited | Information & communication | 2003 |
| Glont Transport Ltd | Transport & logistics | 2021 |
| Glyfada Inc Limited | Arts & recreation | 2025 |
| Gm-Design Limited | Professional & scientific | 2008 |
| GMA Medical Consultancy Limited | Health & social care | 2026 |
| Gmax (South West) Limited | Construction | 2014 |
| GME Electrical Services Ltd | Construction | 2021 |
| GMH (Exeter) Limited | Administrative & support | 2023 |
| Gneiss Developments Limited | Other services | 2004 |
| Gnuppy's Ltd | Hospitality | 2025 |
| Go 68 Ltd | Wholesale & retail | 2026 |
| Go Build SW Ltd | Construction | 2021 |
| Go Plan Revenue Ltd. | Professional & scientific | 2015 |
| Go Private Limited | Financial services | 1999 |
| Go Virtual AI Ltd | Financial services | 2025 |
| Goal Hanger Shirts Limited | Wholesale & retail | 2020 |
| Godfather Catering Limited | Administrative & support | 2016 |
| Godney Marquees Ltd | Administrative & support | 2020 |
| Godrevyhomes Ltd | Construction | 2022 |
| Gofannon Ltd | Transport & logistics | 2021 |
| Goffins Farm Management Company Limited | Administrative & support | 2007 |
| Gold & Shine Cleaning Services Ltd | Administrative & support | 2021 |
| Gold Financial Ltd | Real estate | 2018 |
| Gold Safety Solutions Ltd | Professional & scientific | 2024 |
| Gold Street 4 Limited | Households | 2023 |
| Gold Valeting Limited | Other services | 2022 |
| Gold Vehicles Ltd | Wholesale & retail | 2019 |
| Gold Wash & Valeting Service Limited | Other services | 2017 |
| Golden Bush (UK) Ltd | Wholesale & retail | 2010 |
| Golden Gate Apartments Ltd | Real estate | 2019 |
| Golden Gloves Management Ltd | Administrative & support | 2020 |
| Golden Hair Salon Limited | Other services | 2018 |
| Golden HAY Limited | Real estate | 2022 |
| Golden Honey Limited | Real estate | 2024 |
| Golden Lion (Brixham) Ltd | Hospitality | 2023 |
| Golden Pond (Rockbeare) Ltd | Hospitality | 2012 |