| GB & Skal Investments & Developments Ltd | Administrative & support | 2018 |
| GB Claims & Appeals Ltd | Health & social care | 2025 |
| GB Classic and Sports Cars Ltd | Wholesale & retail | 2018 |
| GB Mini Mart Limited | Wholesale & retail | 2017 |
| GB Prime Services Limited | Other services | 2025 |
| GB Salads Ltd | Manufacturing | 2024 |
| GB Service Solutions Installation Ltd | Construction | 2023 |
| GBA Partnerships Limited | Arts & recreation | 2026 |
| GBA Studios Limited | Arts & recreation | 2017 |
| GBC Property Ltd | Extraterritorial | 2023 |
| GBM Building & Facilities Management Ltd | Construction | 2023 |
| GC Appliance Repair Ltd | Other services | 2024 |
| GC Golden Cars Limited | Transport & logistics | 2017 |
| GC Intelligence Limited | Information & communication | 2018 |
| GC Luxure Limited | Other services | 2014 |
| Gcbb Limited | Health & social care | 2024 |
| GCC Transport Ltd | Transport & logistics | 2018 |
| GCI Global Consulting Ltd | Professional & scientific | 2013 |
| Gcsc Limited | Administrative & support | 2003 |
| GDE Electrical Ltd | Energy | 2023 |
| GDG & CAM Ltd | Wholesale & retail | 2021 |
| GDL Trading (UK) Ltd | Extraterritorial | 2013 |
| GDS Enterprises Limited | Manufacturing | 2003 |
| GDS South West Limited | Other services | 2005 |
| Geanytrade Ltd | Construction | 2017 |
| Gearpro Mechanics Ltd | Wholesale & retail | 2024 |
| Gebremariam & Wubet Properties Ltd | Real estate | 2025 |
| Gedsa Limited | Real estate | 2016 |
| Gee-E-Es Ltd | Financial services | 2009 |
| Geebo's Beauty Clinic Ltd | Other services | 2025 |
| Geeky Exchange Limited | Wholesale & retail | 2018 |
| Geepek Ltd | Administrative & support | 2024 |
| Geeplus Europe Limited | Manufacturing | 1983 |
| Geeplus Holdings Limited | Professional & scientific | 2004 |
| Geewap Limited | Information & communication | 2011 |
| Gegswegs Holdings Ltd | Financial services | 2023 |
| Geko Freight Management Solutions Ltd | Transport & logistics | 2021 |
| GEM E PER Limited | Real estate | 2023 |
| GEM Facilities Limited | Construction | 2015 |
| GEM Heating Services Limited | Construction | 2017 |
| Gemlake Limited | Hospitality | 2019 |
| Gems G T Limited | Administrative & support | 2012 |
| Gencrevast Ltd | Information & communication | 2025 |
| Genealfa Limited | Professional & scientific | 2018 |
| Genekofa Limited | Information & communication | 2025 |
| General Pipe Services Limited | Manufacturing | 2004 |
| General Power Trading Co., Limited | Wholesale & retail | 2025 |
| General Service Design Ltd | Construction | 2024 |
| General Waste Limited | Water & waste | 2016 |
| Generations Finance Limited | Real estate | 2004 |
| Generations Healthcare Ltd | Health & social care | 2018 |
| Generations Property Solutions Ltd | Hospitality | 2018 |
| Genesis Assets & Investments Limited | Real estate | 2024 |
| Genesis Bliss Limited | Health & social care | 2022 |
| Genesis Fostering Ltd | Health & social care | 2024 |
| Geng Geng Ltd | Wholesale & retail | 2025 |
| Geni Carpentry Ltd | Construction | 2022 |
| Geniusxai Limited | Information & communication | 2026 |
| Genny Graham | Manufacturing | 2018 |
| Genome Theatre Company Ltd | Arts & recreation | 2020 |
| Gentle Services Limited | Construction | 2025 |
| Gentlehandscare Ltd | Health & social care | 2026 |
| Genxgen Ltd | Information & communication | 2026 |
| GEO London Ltd | Construction | 2015 |
| Geoff Charles Property Ltd | Real estate | 2025 |
| Geoinvest Consulting Ltd | Professional & scientific | 2026 |
| Geola Maritime Limited | Transport & logistics | 2007 |
| Geolyze Ltd | Professional & scientific | 2024 |
| Geomich Limited | Real estate | 2015 |
| George 5TH Ltd | Households | 2018 |
| George Bernel Limited | Professional & scientific | 2012 |
| George Brent AV Ltd | Administrative & support | 2005 |
| George Follen Ltd | Professional & scientific | 2024 |
| George House Newbury Limited | Real estate | 2022 |
| George Mathew Health Care Limited | Health & social care | 2015 |
| George Proctor & Partners (Shirley) Ltd | Real estate | 2012 |
| George Regal Travel Ltd | Transport & logistics | 2017 |
| George's Cafe (Pitsea) Ltd | Hospitality | 2023 |
| Georgeoka Ltd | Health & social care | 2023 |
| Georgia Croyden Care Centre Ltd | Health & social care | 2026 |
| Georgiou & Daughter Limited | Real estate | 2020 |
| Geplex Int'L Services Limited | Real estate | 2024 |
| Ger-Y-Llyn Flat Owners Management Company Limited | Households | 2023 |
| Geraldine Limited | Other services | 2003 |
| Gerapusco Amores Limited | Health & social care | 2016 |
| Gerard Gardens Management Limited | Households | 1981 |
| Germander Associates Limited | Information & communication | 1994 |
| Gernon Road Apartments (Letchworth) Management Company Limited | Households | 2022 |
| Gershwins Barbershop (Rochester) Limited | Other services | 2020 |
| Gershwins Barbershop Limited | Other services | 2018 |
| GET Bodied Studio London Ltd | Other services | 2023 |
| GET Caned Ltd | Wholesale & retail | 2023 |
| Gettemills Healthcare Ltd | Health & social care | 2025 |
| Geulah Ltd | Professional & scientific | 2020 |
| GF Sussex Limited | Real estate | 2023 |
| GFB Constructions Limited | Hospitality | 2021 |
| GFL International Limited | Wholesale & retail | 2015 |
| GFM Studios Limited | Professional & scientific | 2024 |
| GFR Ecoclean Solutions Ltd | Administrative & support | 2025 |
| GG Sky Ltd | Wholesale & retail | 2025 |