| Globe Management Training Ltd | Information & communication | 2020 |
| Globes Direct Limited | Wholesale & retail | 2004 |
| Globitalks Limited | Wholesale & retail | 2025 |
| Glover Edwards Investments Limited | Professional & scientific | 2006 |
| Gloyne Ventures Ltd | Administrative & support | 2025 |
| GLS Plumbing & Heating (Kent) Ltd | Administrative & support | 2024 |
| Gluhealth Ltd | Manufacturing | 2019 |
| Glyde Associates Limited | Information & communication | 2017 |
| Glyphic AI Limited | Information & communication | 2022 |
| Glyphset Ltd | Professional & scientific | 2024 |
| GM Design Concepts Limited | Professional & scientific | 2026 |
| GMI Logic Limited | Information & communication | 2026 |
| GMW Management Company Limited | Households | 2026 |
| GN Builders Ltd | Construction | 2025 |
| Go Badger! Ltd | Transport & logistics | 2020 |
| Go Carbon Limited | Professional & scientific | 2024 |
| Go Electric Energy Limited | Construction | 2024 |
| Go-Pro Cleaning Ltd | Administrative & support | 2018 |
| Goal 17 Holdings Ltd | Financial services | 2026 |
| Goal 17 Ltd | Administrative & support | 2018 |
| Goap Land & Properties Limited | Real estate | 2020 |
| Goddard Consulting Partners Ltd | Information & communication | 2026 |
| Goddington Consulting Ltd | Professional & scientific | 2024 |
| Godstone Farm Limited | Arts & recreation | 2012 |
| Gokulabharathi Limited | Construction | 2020 |
| Gold Property Holdings Limited | Financial services | 2021 |
| Gold Property Investments LLP | | 2007 |
| Golden Key UK Construction Ltd | Construction | 2021 |
| Goldfinch Business Finance Limited | Financial services | 2024 |
| Goldings & Co. Limited | Financial services | 2008 |
| Goldnova-Trading Ltd | Wholesale & retail | 2026 |
| Goldstones Property (Rolls Avenue) Limited | Real estate | 2019 |
| Goldstones Property (UK) Ltd | Real estate | 2018 |
| Golf & Glory (London) Limited | Wholesale & retail | 2010 |
| Golf Business Specialists Ltd | Administrative & support | 2018 |
| Golf Leisure Holdings Limited | Financial services | 2007 |
| Good Law Project Limited | Professional & scientific | 2017 |
| Good Law Project Trustee Limited | Professional & scientific | 2026 |
| Good With Money.Com Limited | Professional & scientific | 2015 |
| Goodridge Electrical Limited | Construction | 2012 |
| Goody Estate Management Ltd | Administrative & support | 2025 |
| Gothard Investments Limited | Financial services | 2024 |
| Gouck Media (UK) Limited | Information & communication | 2004 |
| Governance Strategic Solutions Limited | Administrative & support | 2017 |
| GP Sevens Limited | Wholesale & retail | 2021 |
| GPC PUB Company Ltd | Hospitality | 2026 |
| GPW Accountancy Limited | Extraterritorial | 2012 |
| GQ Estate Holdings Ltd | Real estate | 2025 |
| GQ Estates Ltd | Real estate | 2024 |
| GR Fitness Limited | Arts & recreation | 2017 |
| GR Servicing Limited | Wholesale & retail | 2007 |
| Grace Alexander Limited | Real estate | 2024 |
| Grace Christian Trust | Administrative & support | 2010 |
| Grace Wills Limited | Professional & scientific | 2021 |
| Graham Price Antiques Limited | Wholesale & retail | 1985 |
| Graham Watt & Co LLP | | 2004 |
| Grainger Electrical Services Ltd | Energy | 2018 |
| Grand Orgue Limited | Arts & recreation | 2018 |
| Grand VIN Wine Merchants Ltd | Wholesale & retail | 2014 |
| Grand Voyage Ltd | Real estate | 2026 |
| Grantley House (Kent) Limited | Professional & scientific | 2023 |
| Granville Apartments Limited | Hospitality | 2013 |
| Graphwide Investments Limited | Construction | 1996 |
| Grasshopper Properties Ltd | Construction | 2024 |
| Gravellon Advisory Limited | Professional & scientific | 2025 |
| Gravely & Paine Limited | Wholesale & retail | 2015 |
| Gray Plus Consulting Ltd | Professional & scientific | 2026 |
| Great Bear Marine Ltd | Professional & scientific | 2026 |
| Great Cheveney Farm Limited | Agriculture & fishing | 2003 |
| Great Cheveney Farm Services Limited | Professional & scientific | 2023 |
| Great Year Ltd | Information & communication | 2002 |
| Great Year Projects Ltd | Professional & scientific | 2002 |
| Green Country Projects Limited | Construction | 2016 |
| Green Craft Ltd | Construction | 2022 |
| Green Fern Building Services Ltd | Construction | 2023 |
| Green Fielders LLP | | 2018 |
| Green Fingers Racing Club Ltd | Arts & recreation | 2024 |
| Green Horizon Power Limited | Construction | 2025 |
| Green Signature Construction Ltd | Construction | 2026 |
| Greenaway Accountancy Services Ltd | Administrative & support | 2020 |
| Greenaway Bookkeeping Limited | Professional & scientific | 2010 |
| Greenbridge Maintenance Limited | Real estate | 2014 |
| Greendoorai Ltd | Information & communication | 2026 |
| Greener Terrace Gardener LLP | | 2014 |
| Greenerreach LLP | | 2005 |
| Greenfort Financial Ltd | Professional & scientific | 2020 |
| Greenhouse Aesthetics Limited | Other services | 2025 |
| Greennow Limited | Construction | 1999 |
| Greensand Ridge Limited | Administrative & support | 2015 |
| Greenup World Community Interest Company | Wholesale & retail | 2023 |
| Greenway Electronic Products Limited | Wholesale & retail | 1999 |
| Grevops Ltd | Information & communication | 2025 |
| Grey Ladies Oasts Residents Association Limited | Other services | 1994 |
| Greycircle Group Ltd | Professional & scientific | 2024 |
| Greycott Accountancy Limited | Professional & scientific | 2014 |
| Greys & Greens Ltd | Manufacturing | 2013 |
| Grid Studios Limited | Hospitality | 2023 |
| Griffin Investors Limited | Financial services | 2017 |
| Grimsley Property Holdings Ltd | Real estate | 2021 |
| Grit Sport Coaching Ltd | Arts & recreation | 2022 |