| Gamerzsocial Limited | Manufacturing | 2013 |
| Games by James Ltd | Wholesale & retail | 2026 |
| Gamesrecruit Limited | Administrative & support | 2001 |
| Garden Affairs Limited | Construction | 2001 |
| Garden Grills Limited | Wholesale & retail | 2013 |
| Garden Refresh Limited | Administrative & support | 2025 |
| Garland @ the Birdhouse CIC | Hospitality | 2024 |
| Garland Hoff Limited | Administrative & support | 1988 |
| Garland Support and Training Limited | Health & social care | 2013 |
| Garnish (Exeter) Limited | Wholesale & retail | 2004 |
| Garston Business Interiors Limited | Wholesale & retail | 2000 |
| Garton King Appliances Limited | Construction | 1973 |
| Gary Crisp Consultants Ltd | Health & social care | 2012 |
| Gary Tubb and Associates Limited | Professional & scientific | 2023 |
| Gary Worth Ltd | Construction | 2018 |
| Gaslec Limited | Construction | 2003 |
| Gater Contractors Limited | Construction | 2004 |
| Gaultney Solar Park Limited | Energy | 2014 |
| Gazco Limited | Manufacturing | 1988 |
| GB Concrete Solutions Ltd | Construction | 2025 |
| GB Operations Ltd | Professional & scientific | 2024 |
| GB Ortho Ltd | Manufacturing | 2025 |
| GB Panel Craft Limited | Wholesale & retail | 2021 |
| Gbbc Ltd | Wholesale & retail | 2013 |
| GBH Devon Ltd | Construction | 2015 |
| Gbltl Ltd | Arts & recreation | 2016 |
| GBM Services Ltd | Construction | 2024 |
| GBSF1 Ltd | Real estate | 2020 |
| GCE Holdings Limited | Financial services | 2019 |
| Gcjh Ltd | Information & communication | 2017 |
| Gcjh Property Holdings Ltd | Real estate | 2025 |
| GDP Purbeck Limited | Hospitality | 2000 |
| GE Tose Consulting Ltd | Administrative & support | 2025 |
| Gecko Interiors Limited | Construction | 2014 |
| Gedulah Solar Limited | Energy | 2014 |
| Gedye Holdings Ltd | Professional & scientific | 2022 |
| Geleydon Ltd | Wholesale & retail | 2025 |
| Gellie Limited | Transport & logistics | 2014 |
| Gelulu Ltd | Manufacturing | 2024 |
| GEM Brixham Limited | Hospitality | 2024 |
| GEM Trading Group Ltd | Administrative & support | 2025 |
| Gemaso Limited | Arts & recreation | 2013 |
| Gemini Financial Limited | Professional & scientific | 2021 |
| Gemini Media Ltd | Professional & scientific | 2025 |
| Gemini Taxis (Exeter) Limited | Transport & logistics | 2003 |
| Gems Market Taxis Ltd | Transport & logistics | 2020 |
| Gemstone Tarot Ltd | Administrative & support | 2019 |
| GEN 60 Ltd | Professional & scientific | 2024 |
| GEN X Carpentry & Construction Ltd | Manufacturing | 2023 |
| Genechip Limited | Wholesale & retail | 2002 |
| General Practice Solutions (SW) Ltd | Health & social care | 2016 |
| Genesis Sustainable Engineering Ltd | Professional & scientific | 2023 |
| Genix Trading Ltd | Wholesale & retail | 2018 |
| Genko International Limited | Construction | 2020 |
| Geno Holdings Limited | Financial services | 2020 |
| Genomic Insights Ltd | Information & communication | 2025 |
| Gent Mcdowell Limited | Other services | 2024 |
| Gentleman Painter & Decorator Ltd | Construction | 2023 |
| Genus Capital 1 Limited | Financial services | 2016 |
| Genus Capital 2 Limited | Financial services | 2016 |
| Genus Capital 3 Limited | Financial services | 2016 |
| Genus Capital 4 Limited | Financial services | 2017 |
| Genus Capital 6 Limited | Financial services | 2017 |
| Genus Capital 7 Limited | Financial services | 2018 |
| Genus Capital 8 Limited | Financial services | 2018 |
| Genus Capital Limited | Financial services | 2016 |
| GEO Consulting Engineering Limited | Professional & scientific | 2011 |
| Geoffrey Preston Limited | Arts & recreation | 2011 |
| Geokwiga Ltd | Professional & scientific | 2026 |
| George Grantley Limited | Real estate | 2019 |
| George Wickham Limited | Wholesale & retail | 2004 |
| George's Angels Ltd | Transport & logistics | 2025 |
| Georgia Taylor Limited | Real estate | 2026 |
| Georgie Glow Ltd | Other services | 2024 |
| Gerald Daniel Holdings UK Ltd | Real estate | 2025 |
| Gerald Dinnis Limited | Wholesale & retail | 2007 |
| German Car Parts Ltd | Wholesale & retail | 2018 |
| German Light Products UK Ltd. | Wholesale & retail | 2016 |
| Gershwins Hairdressing Ltd | Other services | 2011 |
| GES Courier Ltd | Transport & logistics | 2026 |
| Gess South West Limited | Health & social care | 2022 |
| GET Lost Gallery Ltd | Wholesale & retail | 2022 |
| GFM Building Ltd | Manufacturing | 2021 |
| GG Financial Management Ltd | Professional & scientific | 2021 |
| GG Residential Management Ltd | Real estate | 2020 |
| GG Skincare Ltd | Manufacturing | 2025 |
| Ggec Properties Limited | Real estate | 2021 |
| GH Beauty Limited | Health & social care | 2015 |
| Ghacnj Ltd | Wholesale & retail | 2025 |
| GHF Property Management Limited | Real estate | 2012 |
| Ghimer Limited | Hospitality | 2011 |
| GHM Lettings Ltd | Real estate | 2021 |
| Ghosty Barbers (Exeter) Ltd | Other services | 2022 |
| GHR Energy Ltd | Construction | 2024 |
| Giant Deckchairs Limited | Manufacturing | 2018 |
| Gibbins Dairy Limited | Agriculture & fishing | 2013 |
| Gibbsite Solutions Limited | Professional & scientific | 2007 |
| Gibsol Ltd | Administrative & support | 2015 |
| Gibson Pizza Limited | Hospitality | 2026 |
| Gibson-Stirling Limited | Wholesale & retail | 2005 |