| GEE Lawson Limited | Wholesale & retail | 1939 |
| GEM Programming Solutions Limited | Information & communication | 2016 |
| GEM Property Solutions Holdings Limited | Professional & scientific | 2013 |
| GEM Property Solutions Limited | Other services | 2013 |
| GEM7MEDIA Ltd | Professional & scientific | 2024 |
| Gemma Rhead Limited | Professional & scientific | 2014 |
| Gemrow Engineering Ltd. | Professional & scientific | 1991 |
| Gems Pamoja Limited | Education | 2014 |
| Gems UK Investments Limited | Financial services | 2026 |
| Gems-Uk Ltd | Other services | 2024 |
| Gencia Media Limited | Information & communication | 2002 |
| Generator Hire Cheshire Ltd | Administrative & support | 2023 |
| Genesis Care Ltd | Health & social care | 1999 |
| George in the Jungle (Macclesfield) Ltd | Wholesale & retail | 2020 |
| Georges Court Management Limited | Households | 1986 |
| Georgetown Associates Limited | Professional & scientific | 2010 |
| Geraint T Williams Limited | Health & social care | 2022 |
| Gerrard Consulting Limited | Information & communication | 1984 |
| Gerrard Software (MCS) Limited | Professional & scientific | 1991 |
| GET Dynamic and Digital Ltd | Professional & scientific | 2025 |
| GET Dynamic Online Ltd | Professional & scientific | 2024 |
| GET Safe Media Ltd | Wholesale & retail | 2019 |
| GET Your Foot on the Ladder Limited | Financial services | 2004 |
| GH Partnership Ltd | Administrative & support | 2022 |
| Ghekko Group Limited | Financial services | 2022 |
| Ghekko Holdings Limited | Professional & scientific | 2007 |
| Ghekko Limited | Wholesale & retail | 1991 |
| Ghekko Networks Limited | Extraterritorial | 2007 |
| GHM Building Tectonics Limited | Construction | 2015 |
| GHW Property Limited | Real estate | 2017 |
| Giffre Asset Management | Professional & scientific | 2025 |
| Giftpad Ltd | Wholesale & retail | 2016 |
| Gill Property Services Limited | Real estate | 1998 |
| Gillon Trading Limited | Wholesale & retail | 2013 |
| Gillow Construction Ltd | Construction | 2002 |
| Gilman Maintenance Limited | Administrative & support | 2013 |
| GJT Lettings Limited | Real estate | 2021 |
| GK Property Sourcing Ltd | Professional & scientific | 2026 |
| Glade Developments Limited | Construction | 2014 |
| Glade Housing Limited | Construction | 1992 |
| Glasshouse Health Ltd | Health & social care | 2026 |
| Glasshouse Productions Limited | Professional & scientific | 2020 |
| Glastopia Limited | Hospitality | 2024 |
| Gleave Rentals Ltd | Real estate | 2019 |
| Gleaventures Limited | Professional & scientific | 2012 |
| Glengarriff Limited | Wholesale & retail | 2016 |
| Global Brands Protection Limited | Information & communication | 2011 |
| Global CEO Circle Ltd | Professional & scientific | 2026 |
| Global Citizen Solutions Holdings Limited | Financial services | 2025 |
| Global Citizen Solutions Limited | Professional & scientific | 2017 |
| Global Coins Agency Ltd | Financial services | 2013 |
| Global Products Sales Ltd | Administrative & support | 2009 |
| Global Technical Textiles Limited | Manufacturing | 2005 |
| Global Turf Machinery Limited | Wholesale & retail | 2024 |
| Glossop Carpet Centre Limited | Wholesale & retail | 2001 |
| Glossop Garages Ltd | Transport & logistics | 2025 |
| GMC Builders Ltd | Construction | 2021 |
| Gnca Constructions Limited | Construction | 2024 |
| GNG Engineering Limited | Professional & scientific | 2018 |
| Go Exporting Ltd | Professional & scientific | 2018 |
| Go Park Lane Limited | Wholesale & retail | 2025 |
| Go Property Construction Limited | Construction | 2022 |
| Go-Lo C.I.C. | Professional & scientific | 2012 |
| Goadi Consulting Limited | Professional & scientific | 2015 |
| Gold Club Marketing Limited | Real estate | 1988 |
| Goldapple Consulting Ltd | Professional & scientific | 2021 |
| Goldenhigh Limited | Manufacturing | 1991 |
| Goldflash Limited | Other services | 2022 |
| Golf Africa Limited | Arts & recreation | 2023 |
| Golf by Curtis Limited | Arts & recreation | 2018 |
| Gometra Medical Communications Limited | Professional & scientific | 2015 |
| Gomez Care Limited | Health & social care | 2019 |
| Good Burger Collective Ltd | Hospitality | 2025 |
| Goodfellow Legal Transactions Limited | Administrative & support | 2024 |
| Goodridgecorp Ltd | Financial services | 2023 |
| Goodwins Auto Salvage Limited | Wholesale & retail | 2013 |
| Goose Collection Ltd | Wholesale & retail | 2013 |
| Goose Property Ltd | Real estate | 2024 |
| Goostrey Bakery Limited | Hospitality | 2006 |
| Goote Limited | Construction | 2021 |
| Gordon Plant (Services) Limited | Real estate | 1960 |
| Gordons Properties (Macclesfield) Limited | Real estate | 1968 |
| Gorman Consulting Limited | Professional & scientific | 2024 |
| Gorman Jones Limited | Professional & scientific | 2002 |
| Gossip Salon Limited | Other services | 2025 |
| Gourmet Entertainment Ltd | Hospitality | 2025 |
| GPP Automotive Limited | Wholesale & retail | 2017 |
| Grace Flooring NE Ltd | Construction | 2025 |
| Gracebuiltproperties Ltd | Real estate | 2025 |
| Gracecrest Developments Limited | Professional & scientific | 2013 |
| Gracelock Homes Ltd | Real estate | 2024 |
| Gracenettie Limited | Health & social care | 2018 |
| Gradient Power Ltd | Professional & scientific | 2022 |
| Grain and Graft Ltd | Real estate | 2025 |
| Grand Makkah Tours Ltd | Administrative & support | 2026 |
| Grangeside (ST Helens) Management Company Limited | Households | 2005 |
| Granston Consulting Ltd | Professional & scientific | 2015 |
| Grant Properties (Prestbury) Limited | Administrative & support | 2018 |
| Graphene Commercial Finance Ltd | Financial services | 2024 |
| Graphicart W P D Limited | Information & communication | 2005 |