| Gildridge Group Ltd | Wholesale & retail | 2020 |
| Gilead Concepts Ltd | Wholesale & retail | 2020 |
| Giles Hankinson Consulting Limited | Professional & scientific | 2010 |
| Giles Hazard Groundworks Limited | Construction | 2016 |
| Gilfurniture Ltd | Wholesale & retail | 2025 |
| Gilitta Limited | Extraterritorial | 2024 |
| Gilks (Nantwich) Limited | Construction | 1962 |
| Gill & Jack Limited | Professional & scientific | 2022 |
| Gill Consultancy (UK) Limited | Health & social care | 2014 |
| Gill Corp Limited | Wholesale & retail | 2017 |
| Gill Nicholas Delusions Ltd | Arts & recreation | 2019 |
| Gill Services Ltd | Wholesale & retail | 2023 |
| Gillan Edgar Enterprises Ltd | Information & communication | 2010 |
| Gillani Enterprises Limited | Wholesale & retail | 2025 |
| Gillani Real Estate Ltd | Construction | 2026 |
| Gillespie Chiropractic Care Ltd | Health & social care | 2024 |
| Gillespie Heavy Haulage Limited | Administrative & support | 2017 |
| Gillespie Manufacturing Systems Limited | Manufacturing | 2017 |
| Gillespie Plant Services Limited | Manufacturing | 2007 |
| Gillespie Steel Reinforcing Ltd | Construction | 2023 |
| Gillingham Clinic Ltd | Health & social care | 2024 |
| Gills Grill JG Ltd. | Hospitality | 2019 |
| Gills Grill Rusholme Ltd. | Hospitality | 2018 |
| Gilmerton Properties Ltd | Professional & scientific | 2017 |
| Gilmour Family Investment Company | Financial services | 2025 |
| Gilmour Medical Services Ltd. | Health & social care | 2019 |
| Gilmour Property Investments Limited | Financial services | 2025 |
| Gilnet Holdings Limited | Financial services | 2024 |
| Gilnett Ltd | Health & social care | 2020 |
| Giltedge Resources Limited | Professional & scientific | 2014 |
| Giltex Limited | Professional & scientific | 2024 |
| Gilwern House (Management Company) Limited | Real estate | 2005 |
| GIM Consulting Limited | Administrative & support | 2007 |
| GIM Transport Ltd | Transport & logistics | 2022 |
| Gimco Concepts Ltd | Information & communication | 2024 |
| Gimigroup Ltd | Wholesale & retail | 2025 |
| Gimmi Shelter Ltd | Administrative & support | 2019 |
| Gina V Ltd | Manufacturing | 2025 |
| Ginaph Estates Ltd | Real estate | 2025 |
| Ginger Boost IT Ltd | Information & communication | 2022 |
| Ginger Engineering Ltd | Construction | 2020 |
| Ginger FOX Media Limited | Information & communication | 2014 |
| Ginger House Manchester Limited | Hospitality | 2025 |
| Ginger Locus Media Ltd | Professional & scientific | 2019 |
| Ginger Tree Payroll Limited | Administrative & support | 2023 |
| Ginger's Comfort Emporium Limited | Manufacturing | 2011 |
| Gingerbee Consulting Services Limited | Information & communication | 2023 |
| Gingerbread House Day Nursery (Croydon) Limited | Education | 2018 |
| Gingerbread Properties Limited | Real estate | 2022 |
| Gingerpudlian Limited | Information & communication | 2018 |
| Ginkgo Biloba Trading Ltd | Wholesale & retail | 2026 |
| Ginwimmin Ltd | Manufacturing | 2019 |
| GIO-14 Ltd | Administrative & support | 2025 |
| Giovanni MKG Ltd | Real estate | 2023 |
| Gipton Wood Homes Ltd | Real estate | 2025 |
| Giraffe Gate Property Limited | Real estate | 2024 |
| Giraffe Heights Media Ltd | Administrative & support | 2025 |
| Giraffe Media Marketing Limited | Information & communication | 2018 |
| Girasole Environmental Ltd. | Professional & scientific | 2017 |
| Girl ERA Clothing Ltd | Wholesale & retail | 2025 |
| Girl Gang Manchester CIC | Arts & recreation | 2021 |
| Girles Ltd | Wholesale & retail | 2025 |
| Girlhood Ltd | Arts & recreation | 2024 |
| Girlify Limited | Health & social care | 2022 |
| Girling Engineering Limited | Manufacturing | 1998 |
| Girls OUT Loud CIC | Administrative & support | 2010 |
| Girly Handbags Ltd | Wholesale & retail | 2011 |
| Giro Developments Ltd | Real estate | 2022 |
| Giromondo Limited | Wholesale & retail | 1991 |
| Girona Property Ltd | Construction | 2021 |
| Girvan Properties Limited | Professional & scientific | 2011 |
| GIS Essentials Limited | Information & communication | 2017 |
| GIS INT Ltd | Professional & scientific | 2008 |
| GIS Tutorials Ltd | Education | 2025 |
| Giseforum Ltd | Education | 2025 |
| Giselle Louise Aesthetics Ltd | Health & social care | 2019 |
| Gismop Limited | Real estate | 1988 |
| Gismoz Limited | Wholesale & retail | 2021 |
| Gist Studio Ltd | Wholesale & retail | 2026 |
| GIT Ltd | Transport & logistics | 2025 |
| Gitane Mujer Ltd | Hospitality | 2023 |
| Gitisha International Ltd | Wholesale & retail | 2023 |
| Gitpon Limi Limited | Wholesale & retail | 2025 |
| Gitro Limited | Professional & scientific | 2024 |
| Gitter Mazel Properties Ltd | Real estate | 2026 |
| Gitter Properties Ltd | Real estate | 2024 |
| Gitwix Limited | Administrative & support | 2024 |
| Giuliano Wilmslow Ltd | Hospitality | 2019 |
| Giunto Ltd | Health & social care | 2023 |
| Giva Promotion Ltd | Manufacturing | 2026 |
| Givana London Ltd | Wholesale & retail | 2026 |
| Give a Hand | Health & social care | 2015 |
| Give&Go Vending Limited | Hospitality | 2025 |
| Given Life CIC | Health & social care | 2022 |
| Giving Back 1 Ltd | Administrative & support | 2025 |
| Givllo Limited | Wholesale & retail | 2026 |
| Givon Dynasty Investments Limited | Real estate | 2024 |
| GIZ a Chip Ltd | Wholesale & retail | 2024 |
| Gizalift Ltd | Arts & recreation | 2025 |
| Gizelle Ltd | Wholesale & retail | 2014 |