| Ghinea Ltd | Transport & logistics | 2025 |
| Gilaht Limited | Professional & scientific | 2025 |
| GIM Services Limited | Manufacturing | 2023 |
| Ginger Quill Limited | Financial services | 2011 |
| Ginu Transport Ltd | Transport & logistics | 2016 |
| GJC Ltd | Construction | 2023 |
| Gjoka Property Investment Ltd | Real estate | 2024 |
| GL Events Services Ltd | Other services | 2024 |
| Glace Care Ltd | Health & social care | 2026 |
| Glava Limited | Administrative & support | 2023 |
| Glenn Hallam Drum School Limited | Education | 2025 |
| Glenrowan Homes Leadenham Limited | Construction | 2021 |
| Glenrowan Homes Limited | Construction | 2006 |
| Glisred Ltd | Manufacturing | 2018 |
| Glithero's Investments Ltd | Real estate | 2019 |
| GLN Engineering Ltd | Professional & scientific | 2026 |
| GLO Embroidery Limited | Manufacturing | 2018 |
| Global Access Care Ltd | Health & social care | 2018 |
| Global Certification & Compliance Services Ltd | Professional & scientific | 2021 |
| Global Closure Systems UK Limited | Manufacturing | 2005 |
| Global Discount Network Ltd | Wholesale & retail | 2023 |
| Global Driving Ltd | Transport & logistics | 2017 |
| Global Eco-Focus PVT Limited | Real estate | 2011 |
| Global Resources Investment Limited | Financial services | 2015 |
| Global Spedition Ltd | Transport & logistics | 2024 |
| Glorita Car Repairs Ltd. | Wholesale & retail | 2012 |
| Glubbles Limited | Water & waste | 2015 |
| GM Andries Ltd | Wholesale & retail | 2025 |
| GM Contract Management and Site Services Limited | Construction | 2017 |
| GM Moving Services Ltd | Transport & logistics | 2022 |
| GMB JET Ltd | Information & communication | 2024 |
| Gmkhazzan Limited | Health & social care | 2019 |
| Gnathic Limited | Real estate | 2006 |
| Gnsj Civils Ltd | Administrative & support | 2025 |
| Go-Tow Ltd | Wholesale & retail | 2018 |
| GO2 Security Ltd | Construction | 2016 |
| GO4VIBE Ltd | Wholesale & retail | 2026 |
| Godex Limited | Construction | 2020 |
| Goggleboxes Ltd | Administrative & support | 2016 |
| Gokbul Properties & Investment Ltd | Real estate | 2023 |
| Gold Clean Limited | Administrative & support | 2025 |
| Gold Heart Care Ltd | Health & social care | 2022 |
| Goldcarp Limited | Professional & scientific | 2001 |
| Golden Ace Cleanng Ltd | Administrative & support | 2026 |
| Golden Wonder Limited | Manufacturing | 2007 |
| Goldsalem Ltd | Administrative & support | 2014 |
| Good Performance Nutrition Ltd | Other services | 2022 |
| Gorania Properties Limited | Real estate | 2021 |
| Gordon Steven Holdings Limited | Financial services | 2025 |
| Gotango Limited | Hospitality | 2025 |
| Goto Enterprises Ltd | Other services | 2025 |
| Goto Healthcare Limited | Health & social care | 2017 |
| Gouk Ltd | Wholesale & retail | 2020 |
| GPN Coaching Ltd | Other services | 2017 |
| GPN Supps Ltd | Wholesale & retail | 2026 |
| GPN Training Hub Ltd | Other services | 2022 |
| Grabn’Go Express Ltd | Hospitality | 2023 |
| Grace Developments Limited | Construction | 2011 |
| Grace Homes Limited | Construction | 1999 |
| Gracelink Direct Limited | Transport & logistics | 2015 |
| Gracewood Healthcare Ltd | Transport & logistics | 2023 |
| Gracewood Investment Properties Ltd | Real estate | 2025 |
| Grafdriver Ltd | Transport & logistics | 2019 |
| Graham Mckee Limited | Real estate | 2006 |
| Gran Property Solutions Ltd | Real estate | 2024 |
| Grandad & Gloria’S Treats Ltd | Hospitality | 2023 |
| Grandaneer Ltd | Construction | 2011 |
| Grandlane Homes Limited | Construction | 2016 |
| Grasu Ltd | Transport & logistics | 2019 |
| Gray & Sons Logistics Ltd | Wholesale & retail | 2025 |
| Gray Agency Limited | Administrative & support | 2004 |
| Gray Hamilton Consultancy Limited | Professional & scientific | 2018 |
| Gray Lion Limited | Construction | 2020 |
| Graysmith Properties Limited | Real estate | 2018 |
| Great Dover Ltd | Wholesale & retail | 2022 |
| Great Oakley Farms Limited | Agriculture & fishing | 1991 |
| Great Oakley Vets Limited | Professional & scientific | 2023 |
| Green and Grey Properties Ltd | Real estate | 2013 |
| Green Energy Loans Ltd | Financial services | 2025 |
| Green Spring Clothing Ltd | Wholesale & retail | 2024 |
| Green Top Snack Foods Limited | Professional & scientific | 2007 |
| Greenacre Biofuels Ltd | Administrative & support | 2023 |
| Greenacre Energy Limited | Administrative & support | 2022 |
| Greenfix Solutions Limited | Manufacturing | 2025 |
| Greenhill Stores Ltd | Wholesale & retail | 2020 |
| Greenland Logistics Ltd | Transport & logistics | 2023 |
| Greenlane Civils Limited | Construction | 2021 |
| Greenleaf Medical Ltd | Agriculture & fishing | 2025 |
| Greenlite Services Ltd | Real estate | 2026 |
| Greenside Homes Ltd | Real estate | 2025 |
| Greenside Support Ltd | Health & social care | 2024 |
| Greentree Discoveries Ltd | Information & communication | 2023 |
| Grettonbrook Refinishing Ltd. | Wholesale & retail | 2016 |
| Griffin Mayfair Limited | Real estate | 2023 |
| Grin Homes Limited | Construction | 2025 |
| Group Alrai Holdings Limited | Professional & scientific | 2011 |
| Grove Commercial Property Services Limited | Real estate | 2022 |
| Grove Developments (Corby) Limited | Professional & scientific | 2007 |
| Grove Electrical Engineering Limited | Construction | 2002 |
| Grove Engineering Services Limited | Manufacturing | 1997 |