| Grace James Solutions Limited | Manufacturing | 2006 |
| Grace Lily Properties Ltd | Real estate | 2024 |
| Grace Sted Security Ltd | Administrative & support | 2023 |
| Gracefilled Business Services Limited | Real estate | 2026 |
| Gracefilled Limited | Health & social care | 2025 |
| Grade a Sports Limited | Arts & recreation | 2021 |
| Graham Sheet Metals Limited | Manufacturing | 1997 |
| Grahamg Properties Limited | Real estate | 2023 |
| Grahams Transport Ltd | Transport & logistics | 2026 |
| Grainwood Joinery Ltd | Manufacturing | 2020 |
| Graley Properties Ltd | Real estate | 2023 |
| Gramado Ltd. | Wholesale & retail | 2021 |
| Gramapda Limited | Transport & logistics | 2026 |
| Granary Wharf Gainsborough Management Company Limited | Households | 2004 |
| Grand Canyon Limited | Transport & logistics | 2021 |
| Grand Fortune Takeaway Ltd | Hospitality | 2015 |
| Graphic Brands Limited | Manufacturing | 1995 |
| Gratitude Care Ltd | Health & social care | 2024 |
| Grax Limited | Real estate | 1993 |
| Gray & Grace Property Limited | Real estate | 2021 |
| Graydean Engineering Ltd | Manufacturing | 2025 |
| Great British Solar Limited | Construction | 2022 |
| Great Chef Ltd | Hospitality | 2026 |
| Great Wall Chinese Mansfield Ltd | Hospitality | 2025 |
| Greater Sustainable Solutions Limited | Information & communication | 2020 |
| Greatness Healthcare Ltd | Administrative & support | 2025 |
| Greece Express Ltd | Wholesale & retail | 2026 |
| Green & Tidy Landscapes Limited | Administrative & support | 2006 |
| Green Energy Solution (Midland) Limited | Other services | 2014 |
| Green Frog Entertainments Limited | Arts & recreation | 2016 |
| Green Habitats Ltd | Construction | 2010 |
| Green Horizon Technology Limited | Manufacturing | 2025 |
| Green Lane 4 X 4 Limited | Wholesale & retail | 2014 |
| Green Oak Gardening Limited | Administrative & support | 2022 |
| Green Oak Property Group Limited | Hospitality | 2025 |
| Greenacres 4X4 Ltd | Wholesale & retail | 2007 |
| Greenchurch Developments Holdings Limited | Construction | 2017 |
| Greenchurch Developments Limited | Construction | 2014 |
| Greenlight PD Ltd | Information & communication | 2018 |
| Greeno Lite Ltd | Professional & scientific | 2025 |
| Greenolysis Limited | Energy | 1999 |
| Greenpeak Environmental Ltd | Water & waste | 2025 |
| Gregortrans. GJ Ltd | Transport & logistics | 2015 |
| Gregory Rentals Ltd | Real estate | 2024 |
| Greyhound Trader Ltd | Wholesale & retail | 2021 |
| Greyt Garage Ltd | Wholesale & retail | 2025 |
| Griffin Financial Management Limited | Financial services | 1996 |
| Grill Chicken Express Limited | Hospitality | 2025 |
| Grindtec Feed & Vehicle Services Limited | Agriculture & fishing | 2026 |
| Grounds Care Landscapes Ltd | Administrative & support | 2016 |
| Grove Construction (Newark) Limited | Construction | 2018 |
| Grove Properties Newark Ltd | Real estate | 2025 |
| Groveside Design Limited | Administrative & support | 2013 |
| Growth Businesses Ltd | Professional & scientific | 2024 |
| Grub.Buddy Ltd | Hospitality | 2025 |
| GS Metal Joining Limited | Wholesale & retail | 2009 |
| GSP Property Group Ltd | Real estate | 2026 |
| GT Design Solutions Ltd | Professional & scientific | 2011 |
| GTC 3SIXTY Limited | Construction | 2013 |
| GTD Auto Limited | Wholesale & retail | 2018 |
| GTD Evolve Limited | Information & communication | 2018 |
| GTM Dents Ltd | Wholesale & retail | 2016 |
| Guildford Surrey Limited | Professional & scientific | 2017 |
| GULFSTREAM280 Ltd | Transport & logistics | 2025 |
| Gumel Enterprises Ltd | Real estate | 2018 |
| Gurjassal Properties Limited | Real estate | 2025 |
| Guttercleanuk Ltd | Administrative & support | 2019 |
| GW Manufacturing Solutions Limited | Manufacturing | 2017 |
| GWH Paving Services Limited | Administrative & support | 2007 |
| Gymready Limited | Extraterritorial | 2023 |
| H & D Minimarket Limited | Wholesale & retail | 2011 |
| H & H Chahal Ltd | Real estate | 2017 |
| H & J Property Management Limited | Real estate | 2009 |
| H & S Computer Solutions Limited | Wholesale & retail | 2015 |
| H & S Project Consultant and Design Ltd | Other services | 2014 |
| H RAI Limited | Wholesale & retail | 2025 |
| H&F Electrical Solutions Ltd | Construction | 2018 |
| H20 Plumbing & GAS Limited | Construction | 2010 |
| Haarlem Mill Limited | Administrative & support | 2017 |
| Habia Cable Limited | Manufacturing | 1976 |
| HAC Medical GAS Training & Services Limited | Education | 2016 |
| Hadi and Meharmah Corporation Ltd | Wholesale & retail | 2025 |
| Haigh Healthcare Limited | Health & social care | 2009 |
| Hair @115 Ltd | Other services | 2024 |
| Hair Haus Limited | Other services | 2026 |
| Hairitagebyrokah Ltd | Other services | 2025 |
| Halam Services Ltd | Education | 2025 |
| Hall-Fast Industrial Supplies Limited | Administrative & support | 2006 |
| Hall-Ward IFA Limited | Financial services | 2016 |
| Hall-Ward Property Limited | Real estate | 2017 |
| Hallam Mortgages Ltd | Financial services | 2016 |
| Hallcroft Homes Limited | Construction | 2025 |
| Hallowes Delivery Service Limited | Transport & logistics | 2001 |
| Hallsworth Construction Ltd | Construction | 2026 |
| Halo Chef Limited | Hospitality | 2023 |
| Halo Cleaning Services Limited | Administrative & support | 2021 |
| Halo ID Limited | Arts & recreation | 2021 |
| Halstead Engineering Services Limited | Construction | 2019 |
| Hambleside Developments Limited | Construction | 2018 |
| Hambleside Properties Limited | Real estate | 2012 |