| G&R Groundwork’S Ltd | Construction | 2021 |
| G&S Holdings (SW) Ltd | Financial services | 2021 |
| G&T (Ilfracombe) Limited | Hospitality | 2021 |
| G-Wad Ltd | Professional & scientific | 2021 |
| G.J.E. Carpentry Contractors Limited | Construction | 2002 |
| G.Loosemore & SON Limited | Construction | 1960 |
| Gaglione Limited | Professional & scientific | 2003 |
| Gagov Plastering Contractor Ltd | Construction | 2017 |
| Gaiatech Industries Ltd | Agriculture & fishing | 2020 |
| Gallox Ltd | Wholesale & retail | 2019 |
| Gamay Ltd | Professional & scientific | 2009 |
| Gardant Community Safety Team CIC | Public administration | 2026 |
| Gardant Group Ltd | Construction | 2020 |
| Gardant Medicare Ltd | Health & social care | 2019 |
| Gardant Support Services Limited | Administrative & support | 2021 |
| Gardant Training Academy Limited | Education | 2020 |
| Garness Contracting Ltd | Construction | 2008 |
| Gary Prout CGC Ltd | Other services | 2025 |
| GAS Rite (North Devon) Ltd | Construction | 2011 |
| Gasman Engineering Ltd | Construction | 2024 |
| Gatehouse Trailer Bar Limited | Wholesale & retail | 2018 |
| Gates Construction Consultants Limited | Professional & scientific | 2007 |
| Gates Green Solutions Ltd | Professional & scientific | 2010 |
| Gates Partnership Plymouth LLP | | 2008 |
| Gates Safety Management Limited | Professional & scientific | 2008 |
| Gather & Pour Holdings Ltd | Hospitality | 2026 |
| GB Adventure Club Limited | Information & communication | 2025 |
| GC International Consulting Group Limited | Professional & scientific | 2009 |
| GDK Consulting Limited | Professional & scientific | 2006 |
| Gdrp Property Ltd | Construction | 2025 |
| Gemini Business Partnerships Ltd | Professional & scientific | 2025 |
| Gemink Art Limited | Administrative & support | 2025 |
| Gemmas at Waytown Limited | Hospitality | 2023 |
| Geomas Concepts Limited | Professional & scientific | 2017 |
| George Barrie Associates Limited | Professional & scientific | 2024 |
| GET Better Limited | Professional & scientific | 2022 |
| GET Better Tech Ltd | Information & communication | 2025 |
| Getset Design UK Limited | Wholesale & retail | 2002 |
| GG Gadgets and Games Ltd | Manufacturing | 2024 |
| Ghostfrog Ltd | Professional & scientific | 2025 |
| Gibbs Property Management Ltd | Real estate | 2016 |
| Gingerweb Limited | Information & communication | 2015 |
| GIO & LUC Limited | Hospitality | 2009 |
| Giraffe Labs Ltd | Information & communication | 2022 |
| GJW Property Investments Ltd | Real estate | 2026 |
| GKI Insights Ltd | Information & communication | 2025 |
| Glanvile Metals Limited | Water & waste | 1995 |
| Glas Wolf Concepts Ltd | Manufacturing | 2023 |
| Glazing Innovations (South West) Limited | Construction | 2016 |
| Gleed Vision Limited | Health & social care | 2016 |
| GLH Holdings Ltd | Financial services | 2024 |
| Glitzy Bitz Accessories Limited | Wholesale & retail | 2012 |
| Glove Court Management Company Limited | Real estate | 1999 |
| GM Plant (Devon) Ltd | Construction | 2014 |
| GMG Securities Ltd | Construction | 2026 |
| GMT Real Estate Ltd | Real estate | 2026 |
| Go 2 NET Zero Ltd | Construction | 2022 |
| Gold Acorn Ltd | Professional & scientific | 2026 |
| Gold Media & Events Ltd | Professional & scientific | 2014 |
| Golden Coast Limited | Wholesale & retail | 1989 |
| Golden Plate Limited | Hospitality | 2019 |
| Goldflag Limited | Hospitality | 1999 |
| Golding Construction Limited | Construction | 2022 |
| Goodwinch Limited | Wholesale & retail | 2002 |
| Gordon Vehicle Services Ltd | Manufacturing | 2025 |
| Goscomb Enterprises Ltd | Construction | 2023 |
| GPC Property Consultants Ltd | Real estate | 2025 |
| Graham Atkins Ltd | Administrative & support | 2010 |
| Grant Housekeeping Ltd | Administrative & support | 2024 |
| Grant Lettings Limited | Real estate | 2015 |
| Grantley James Associates Ltd | Wholesale & retail | 2015 |
| Great Asian Supermarket Ltd | Wholesale & retail | 2024 |
| Great Field Gardens Management Ltd | Households | 1997 |
| Great Meadow Enterprises Ltd | Professional & scientific | 2020 |
| Green Acre Developments (SW) Limited | Real estate | 2005 |
| Green Estates (South West) Ltd | Construction | 2022 |
| Green MAN Cider Ltd | Manufacturing | 2019 |
| Green Panda Holdings Ltd | Financial services | 2026 |
| Green Paths Environmental Education CIC | Education | 2024 |
| Green Vales Management Limited | Real estate | 2010 |
| Greenacre 2017 Limited | Real estate | 2017 |
| Greenclose Mews Management Company Limited | Households | 2020 |
| Greenfuels 4U Ltd | Wholesale & retail | 2014 |
| Greentech Portfolio Ltd | Administrative & support | 2011 |
| Grenville Place (Management) Co Ltd | Real estate | 2014 |
| Greybond Residents Association Limited | Households | 1984 |
| Grosvenor Church Barnstaple | Other services | 2004 |
| Group Training and Development Limited | Education | 1987 |
| Grubber Limited | Manufacturing | 2025 |
| GRW Retail Limited | Wholesale & retail | 2017 |
| GS Cycle Ltd | Financial services | 2022 |
| GSW Holdings Ltd | Other services | 2019 |
| GT Ales Limited | Manufacturing | 2015 |
| Gtjl Technical Services Limited | Professional & scientific | 2007 |
| Guardian Fire & Security (South West) Limited | Professional & scientific | 2008 |
| Gulfstream Surfboard Limited | Manufacturing | 2005 |
| Gurkha Barnstaple Ltd | Hospitality | 2016 |
| Gurkha Khukuri Limited | Hospitality | 2009 |
| Gym X Ltd | Arts & recreation | 2019 |
| Gymwasp Ltd | Information & communication | 2026 |