| GKS of Ivybridge Limited | Wholesale & retail | 2003 |
| GKS Service Centre Limited | Wholesale & retail | 2003 |
| GLA$$ Limited | Households | 2025 |
| Glad Stones SW Ltd | Real estate | 2022 |
| Glade Close Management Company Limited | Households | 2005 |
| Glan Systems Limited | Wholesale & retail | 2025 |
| Glass Art Limited | Manufacturing | 2025 |
| Glass Curtain Band Limited | Arts & recreation | 2013 |
| Glass Reinforcements Plymouth Limited | Manufacturing | 2013 |
| Glazing South West Ltd | Construction | 2020 |
| GLC Financial Solutions Ltd | Financial services | 2025 |
| Glebeflame Limited | Professional & scientific | 1984 |
| Glenfield Gatehouse Limited | Households | 2016 |
| Glenglow Properties Limited | Extraterritorial | 1967 |
| Glenholt Holdings Limited | Real estate | 2021 |
| Glenholt Psychotherapy Limited | Health & social care | 2026 |
| Glenholt Steel Fabrications Limited | Manufacturing | 2007 |
| GLH Plasterers and Sons Limited | Construction | 2018 |
| Global Car Master Limited | Wholesale & retail | 2019 |
| Global Discount Ltd | Wholesale & retail | 2019 |
| Global Distribution Solutions Ltd | Wholesale & retail | 2018 |
| Global Driveway Ltd | Administrative & support | 2025 |
| Global Expand Ltd | Wholesale & retail | 2020 |
| Global Hotels & Leisure Consultancy Limited | Professional & scientific | 2018 |
| Global Pipelines & Civil Engineering Ltd | Construction | 2025 |
| Global Rock Ltd | Construction | 2024 |
| Global Soul Circles Network Ltd | Information & communication | 2025 |
| Global Taxi Ltd | Transport & logistics | 2025 |
| Gloneb Alliance Ltd | Wholesale & retail | 2026 |
| Glorious Hope Home Care Ltd | Health & social care | 2016 |
| Glory Lift Ltd | Transport & logistics | 2016 |
| Gloucester City Basketball Club Ltd | Education | 2026 |
| Glow and Go Tanning Solutions Ltd | Other services | 2026 |
| Glow Compliance Limited | Professional & scientific | 2026 |
| Glow Digital Marketing Limited | Professional & scientific | 2021 |
| Glow Gremlin Ltd | Information & communication | 2025 |
| Glowrx Aesthetics Ltd | Other services | 2024 |
| GLT Consultancy Ltd | Administrative & support | 2016 |
| Gluedog Limited | Information & communication | 2024 |
| Glynns Waste Removals Limited | Water & waste | 2014 |
| GM Purdy Engineering Limited | Construction | 2025 |
| GMB Services (South West) Limited | Transport & logistics | 2012 |
| GmbH Engineering Limited | Manufacturing | 2023 |
| GMG Builders Limited | Construction | 2018 |
| Gmms Travel Ltd | Transport & logistics | 2020 |
| Gmms Travel(Uk) Limited | Transport & logistics | 2022 |
| GMP Investments Wells Limited | Financial services | 2025 |
| GMR Building Services Limited | Construction | 2009 |
| GMR Mechanical and Electrical Services Limited | Construction | 2018 |
| GMS Bodyworks Limited | Wholesale & retail | 2019 |
| Gmsa Fire and Security Ltd | Construction | 2017 |
| Gnaw Studio Ltd | Wholesale & retail | 2025 |
| Go MAM Limited | Construction | 2023 |
| Go! Plymouth Airport Transfers Ltd | Transport & logistics | 2026 |
| Go-Lad Ltd | Transport & logistics | 2025 |
| Goal Crushers Ltd | Information & communication | 2024 |
| Gobblesplot Publishing Limited | Information & communication | 2026 |
| God's Emeralds Ltd | Administrative & support | 2024 |
| Godfrey Jewellers Limited | Wholesale & retail | 2026 |
| Godpat Career Solutions Ltd | Professional & scientific | 2026 |
| Godwin & Green Construction Ltd | Construction | 2019 |
| Gold Blanc Ltd | Real estate | 2020 |
| Gold Reflect Limited | Financial services | 2014 |
| Goldbergs LEX Limited | Extraterritorial | 2014 |
| Golden Door Properties Ltd | Real estate | 2023 |
| Golden Grill Plymouth Ltd | Hospitality | 2017 |
| Golden Hind Properties Ltd | Real estate | 2024 |
| Golden Light Health Care Limited | Health & social care | 2024 |
| Golden Scissors (Plymstock) Ltd | Other services | 2019 |
| Golden Ticket Travel Limited | Extraterritorial | 2014 |
| Golden X Ltd | Wholesale & retail | 2020 |
| Goldenwings Limited | Hospitality | 2023 |
| Goldmann Plymouth Ltd | Wholesale & retail | 2025 |
| Goldstar Total Ltd | Wholesale & retail | 2023 |
| Golf and Leisure Developments Limited | Construction | 2018 |
| Golf Store Pro Limited | Wholesale & retail | 2012 |
| Gonzales Restaurant Limited | Hospitality | 2019 |
| Gonzalez Property Ltd | Real estate | 2022 |
| Good Beef Index Limited | Agriculture & fishing | 2019 |
| Good Business Pays CIC | Other services | 2022 |
| Good Robot Productions Ltd | Arts & recreation | 2021 |
| Good Times Bar and Kitchen Ltd | Hospitality | 2020 |
| Good Times Bar Number 2 Ltd | Hospitality | 2020 |
| Good With Wood (SW) Ltd | Construction | 2023 |
| Goode Beauty Limited | Other services | 2025 |
| Goode Construction Limited | Construction | 2017 |
| Goode Hairdressing Limited | Other services | 2023 |
| Goode Property Management Limited | Households | 2023 |
| Gooderham Farms Limited | Agriculture & fishing | 1997 |
| Goodliffe Technical Services Limited | Administrative & support | 2007 |
| Goodmans Financial Planning (EOT) Trustees Limited | Administrative & support | 2023 |
| Goodmans Financial Planning Ltd | Financial services | 2009 |
| Goodshelter Property (Surbiton) Limited | Real estate | 2010 |
| Goodshelter Property Company Limited | Real estate | 2012 |
| Goodwin Sonic Ltd | Manufacturing | 2021 |
| Goonvrea Consulting Ltd | Health & social care | 2024 |
| Goose & Gandy Holdings Limited | Construction | 2020 |
| Goosewing Media Ltd | Information & communication | 2025 |
| Goose’S Gallery Ltd | Arts & recreation | 2023 |
| GOR Gori Spice Ltd | Hospitality | 2023 |