| GJS Services Limited | Transport & logistics | 2008 |
| Glad UK Properties Ltd | Real estate | 2026 |
| GLL Properties Limited | Real estate | 2014 |
| GLO Transport Services Ltd | Transport & logistics | 2022 |
| Global Associates North Limited | Information & communication | 2016 |
| Global Challenge Accounting Services Ltd | Professional & scientific | 2020 |
| Global Challenge Debt Solutions Ltd | Administrative & support | 2020 |
| Global Challenge Ecommerce Ltd | Administrative & support | 2020 |
| Global Challenge Financial Services Ltd | Other services | 2017 |
| Global Challenge Healthcare Services Ltd | Other services | 2017 |
| Global Challenge Heavy Equipment Ltd | Construction | 2020 |
| Global Challenge International Ltd | Wholesale & retail | 2021 |
| Global Challenge Investments Private Limited | Professional & scientific | 2004 |
| Global Challenge IT Solutions Ltd | Information & communication | 2017 |
| Global Challenge Payroll Services Ltd | Other services | 2017 |
| Global Challenge Platforms Ltd | Administrative & support | 2019 |
| Global Challenge Properties Ltd | Real estate | 2017 |
| Global Challenge Recruitment Services Ltd | Professional & scientific | 2020 |
| Global Challenge Umbrella Services Ltd | Other services | 2017 |
| Global Instrumentation Limited | Information & communication | 1998 |
| Global Production Center Ltd | Information & communication | 2018 |
| Global Services & Supplies Limited | Wholesale & retail | 2016 |
| Global Tiling Alliance Ltd | Wholesale & retail | 2025 |
| Global Umbrella Limited | Financial services | 2016 |
| GM Kent Auto Diagnostic and Repair Centre Ltd | Wholesale & retail | 2018 |
| GM Welding & Consultancy Services Ltd | Professional & scientific | 2016 |
| Gmdelivery Ltd | Transport & logistics | 2022 |
| GME Social Care Ltd | Health & social care | 2023 |
| Gmmcons Limited | Transport & logistics | 2020 |
| Gmti Properties Ltd | Real estate | 2025 |
| GN Agro Limited | Agriculture & fishing | 2007 |
| GNE4VA Limited | Transport & logistics | 2025 |
| Go AQS CIC | Professional & scientific | 2025 |
| Go Italia Ltd | Wholesale & retail | 2012 |
| GO2ELECTRICALS Southeast Ltd | Construction | 2014 |
| Goark Ltd | Professional & scientific | 2025 |
| Gokerplast UK Ltd | Wholesale & retail | 2025 |
| Gold Goshen Consulting Ltd | Other services | 2014 |
| Gold Sports Therapy Ltd | Health & social care | 2017 |
| Golden Catering Ltd | Hospitality | 2019 |
| Golden Grill 11 Ltd | Hospitality | 2026 |
| Goldenbrook Assets Limited | Real estate | 2025 |
| Goldsmith Building Services Ltd | Construction | 2023 |
| Goldstart Ltd | Health & social care | 2018 |
| Goldstone Broking Group Limited | Financial services | 2020 |
| Gooderson Site Services Ltd | Other services | 2014 |
| Goodhew Brothers Fencing Limited | Manufacturing | 2004 |
| Goodier Utilities Limited | Water & waste | 2025 |
| Goose River Consulting Limited | Information & communication | 2014 |
| Gopro Roofing Ltd | Construction | 2025 |
| Gore Court (Westlands) Limited | Arts & recreation | 1992 |
| Gorilla Paint Ltd | Extraterritorial | 2018 |
| Gortanore Developments Limited | Construction | 2007 |
| Goshen-Hill Care Ltd | Health & social care | 2024 |
| GP IT Solution Ltd | Information & communication | 2021 |
| GPC Environmental Limited | Professional & scientific | 2024 |
| GPC Harena Limited | Water & waste | 2018 |
| GPC Holdings Limited | Financial services | 2019 |
| GPK Group Ltd | Transport & logistics | 2021 |
| Gprsurvey Ltd | Professional & scientific | 2024 |
| Grace & Glory Moments Limited | Administrative & support | 2025 |
| Grace C Services Ltd | Health & social care | 2019 |
| Gracebrooks Services Ltd | Professional & scientific | 2016 |
| Graceco Foods UK Ltd | Wholesale & retail | 2016 |
| Gracehaven Care Services Ltd | Health & social care | 2025 |
| Gracepoint Healthcare Services Limited | Public administration | 2025 |
| Graham's Auto Repairs Limited | Wholesale & retail | 2003 |
| Gransden Construction Limited | Construction | 2005 |
| Gransden DRY Ice Blasting Ltd | Administrative & support | 2023 |
| Grantmaking Solutions Ltd | Professional & scientific | 2026 |
| Graphickat UK Limited | Professional & scientific | 2016 |
| Grayling Place Management Company Limited | Administrative & support | 1995 |
| Great Higham Limited | Hospitality | 2005 |
| Great Land Movers Ltd | Transport & logistics | 2023 |
| Grecian Gold Limited | Wholesale & retail | 2015 |
| Green Cleaning Solutions Limited | Administrative & support | 2022 |
| Green Frog Trading Limited | Manufacturing | 2023 |
| Green Funerals Administration Ltd | Other services | 2009 |
| Green Sol-Gel Ltd | Professional & scientific | 2022 |
| Greenbrooks Services Limited | Transport & logistics | 2020 |
| Greeze Ltd | Wholesale & retail | 2023 |
| Gregory's Gardening Services Limited | Other services | 2007 |
| Grew Utilities Ltd | Construction | 2023 |
| GRH Solutions Limited | Construction | 2009 |
| Griffin Plant Limited | Administrative & support | 2018 |
| Grill Spot Ltd | Hospitality | 2025 |
| Grooms Installations Ltd | Construction | 2016 |
| Group Four Glassfibre Co. Limited | Manufacturing | 1972 |
| Grove Leisure Environmental Limited | Arts & recreation | 2004 |
| Grovehurst Health Limited | Public administration | 2025 |
| Grovehurst Newsagents Limited | Wholesale & retail | 2008 |
| Growstep Limited | Professional & scientific | 2002 |
| GS Booker Accounts & Holdings Co. Limited | Professional & scientific | 2025 |
| GS Vine Solution Limited | Agriculture & fishing | 2025 |
| GSH Property Investments Ltd | Real estate | 2020 |
| GSI Commercial Services LLP | | 2003 |
| GSKIT1 Consulting Ltd | Professional & scientific | 2011 |
| GT Property Projects Ltd | Construction | 2021 |
| GTM Imaging Ltd | Health & social care | 2022 |
| GTS Agro Supplies Ltd | Wholesale & retail | 2018 |