| GH Agriculture Ltd | Agriculture & fishing | 2020 |
| Ghalap Trading Limited | Wholesale & retail | 2017 |
| Ghenos (Hencote) Limited | Financial services | 2015 |
| Ghenos LLP | | 2014 |
| Ghenos Vineyard Estates Ltd | Manufacturing | 2017 |
| GI Electrical Services Limited | Construction | 2014 |
| GI Motors Limited | Wholesale & retail | 2008 |
| GI Property UK Ltd | Real estate | 2025 |
| Giant Creative Solutions Limited | Professional & scientific | 2007 |
| GIB Trans Ltd | Transport & logistics | 2024 |
| Gibson Wilday Properties Limited | Real estate | 2020 |
| Gibsons Flooring & Ceramics Limited | Construction | 1998 |
| Giesen Wines UK Limited | Wholesale & retail | 2010 |
| Giftettes Ltd | Wholesale & retail | 2023 |
| GIG Hotels Limited | Hospitality | 2021 |
| Giggle Street Shrewsbury Ltd | Education | 2021 |
| Gilding Fields Management Company Limited | Real estate | 2023 |
| Gill Harris Writes Limited | Arts & recreation | 2010 |
| Gimble Direct Ltd | Professional & scientific | 2017 |
| Ginger & Co Coffee Ltd | Hospitality | 2015 |
| GJB Consulting Ltd | Information & communication | 2025 |
| GJK IT Consultancy Ltd | Information & communication | 2016 |
| GK MOT & Tachograph Centre Limited | Wholesale & retail | 2005 |
| GL Davies Limited | Agriculture & fishing | 2012 |
| Glass Space Limited | Construction | 2011 |
| Gleam and Glam Services Ltd | Administrative & support | 2021 |
| Glec Shropshire Ltd | Construction | 2019 |
| Glendene Place Management Limited | Real estate | 2020 |
| Glenian Properties Limited | Real estate | 2019 |
| Glenlinnhe Limited | Construction | 2010 |
| Glennon Consulting Limited | Information & communication | 2021 |
| Glick Distribution Limited | Transport & logistics | 2026 |
| Glick International Ltd | Wholesale & retail | 2019 |
| Global Air Quality Ltd | Professional & scientific | 2024 |
| Global Geospatial Intelligence Consultancy Services Limited | Agriculture & fishing | 2010 |
| Global Journalism Ltd | Administrative & support | 2025 |
| Global Leadership Education Ltd | Education | 2022 |
| Gloria Seeds Limited | Wholesale & retail | 2025 |
| Glory Logistics Ltd | Transport & logistics | 2018 |
| Glouglou Enoteche Ltd | Wholesale & retail | 2026 |
| Glow Nest Shrewsbury Ltd | Other services | 2025 |
| Glowdrive Ltd | Education | 2025 |
| Glyn Jones Electrical Services Limited | Construction | 2012 |
| GM Chiropractic Limited | Health & social care | 2016 |
| GMC Construction Solutions Limited | Construction | 2019 |
| GMC Holidays Limited | Hospitality | 2021 |
| Go 2 Lettings and Property Ltd | Real estate | 2018 |
| Go Ahead Estates Ltd | Real estate | 2025 |
| Go Green Systems Limited | Construction | 2010 |
| Go Groundworks Ltd | Construction | 2016 |
| Go Remapping Ltd | Information & communication | 2026 |
| GO3 Property Ltd | Real estate | 2022 |
| Goal Focused Learning Ltd | Professional & scientific | 2014 |
| Goddard Enterprises Limited | Administrative & support | 2016 |
| Going OUT Ltd | Other services | 2019 |
| Goldfinch HR Limited | Administrative & support | 2014 |
| Goldfoster Limited | Construction | 2005 |
| Goldies Smash Ltd | Hospitality | 1983 |
| Goldline Real Estate UK Ltd | Real estate | 2020 |
| Golf Performance Innovations Limited | Manufacturing | 2023 |
| Golf Revolution Ltd | Extraterritorial | 2001 |
| Golygfa Menai (Felinheli) Management Company Limited | Real estate | 2015 |
| Gomo Mount Ltd | Health & social care | 2020 |
| Goodall Bates & Todd Limited | Manufacturing | 1906 |
| Goodsyard (NO 1) Management Company Limited | Households | 2020 |
| Goodwin and Brocklebank Medical Ltd | Health & social care | 2023 |
| Goodyear Management Company NO 2 Limited | Households | 2012 |
| Goodyear Management Limited | Households | 2011 |
| Goole Railway Buildings Limited | Households | 2006 |
| Gordon Builders Ltd | Construction | 2021 |
| Gordon Ryan Transport Ltd | Transport & logistics | 2003 |
| Gorki Limited | Real estate | 1977 |
| Goscote Hall RTM Company Limited | Households | 2018 |
| Gospel Oak Management Company Limited | Households | 2013 |
| Gottahunch Ltd | Wholesale & retail | 2015 |
| Goudie Projects Limited | Real estate | 2011 |
| Goulden GP Ltd | Health & social care | 2016 |
| Gourmet Lifestyle - Leisure Marketing Ltd. | Administrative & support | 2008 |
| Governors Court Management Co Ltd. | Households | 1990 |
| GP Catering Associates Ltd | Hospitality | 2002 |
| GPM Group Holdings Limited | Administrative & support | 2016 |
| Grace Period Properties Ltd | Real estate | 2016 |
| Graceful Home Services Ltd | Administrative & support | 2026 |
| Gracevalley Limited | Information & communication | 2023 |
| Graham Withers LLP | | 2013 |
| Grainfield Lane Management Company Limited | Households | 2021 |
| Grainger Holdings Limited | Financial services | 2007 |
| Grammar School Gardens Management Company Limited | Real estate | 2014 |
| Grand 49 Limited | Real estate | 1988 |
| Grand Game Shows Limited | Information & communication | 2018 |
| Grange Fryday Limited | Hospitality | 2024 |
| Grange Lane (Wolstanton) Management Company Limited | Households | 2007 |
| Grange Mini Mart Limited | Wholesale & retail | 2002 |
| Grange Products (Leicester) Limited | Professional & scientific | 1975 |
| Grange Timber Ltd | Wholesale & retail | 2023 |
| Granville Lodge Limited | Construction | 2021 |
| Graphicsign Limited | Manufacturing | 1994 |
| Gratton Oakes (Construction) Ltd | Construction | 2018 |
| Gravity Works Limited | Information & communication | 2020 |
| Grayling FOX Ltd | Real estate | 2024 |