| Glorious Apples Limited | Health & social care | 2022 |
| Glorious MS Ltd | Professional & scientific | 2019 |
| Glormedicals Limited | Health & social care | 2022 |
| Glow White Ltd | Administrative & support | 2019 |
| Glynn Consulting Ltd | Information & communication | 2004 |
| GM Smart Systems Ltd | Construction | 2016 |
| GM Spray Finish Ltd | Construction | 2025 |
| Gmoe Limited | Administrative & support | 2025 |
| GN Jewellery Packaging Ltd | Wholesale & retail | 2022 |
| GNG Flooring Ltd | Construction | 2022 |
| Go Globe Limited | Professional & scientific | 2019 |
| Go Tax Refunds Ltd | Professional & scientific | 2025 |
| Go to Athlete Ltd | Financial services | 2024 |
| Go to Athlete Online Ltd | Arts & recreation | 2026 |
| Go-Prem Limited | Transport & logistics | 2018 |
| Goalee Limited | Health & social care | 2025 |
| Goated Property Ltd | Real estate | 2024 |
| Gobiey Limited | Wholesale & retail | 2024 |
| Godmorgon Properties Ltd | Real estate | 2023 |
| Goji Entertainment Limited | Information & communication | 2025 |
| Gold Cross Care Limited | Administrative & support | 2022 |
| Gold Cross Children's Home Ltd | Health & social care | 2024 |
| Golden Dragon Old Harlow Ltd | Hospitality | 2022 |
| Golden Healthcare Professionals Ltd | Health & social care | 2018 |
| Golden Leaf Mortgages Limited | Financial services | 2024 |
| Golden Lion Windows and Doors Ltd | Construction | 2021 |
| Golden Oak Management Limited | Households | 2010 |
| Golden Skin Ltd | Other services | 2022 |
| Golden Tanning Group Ltd | Extraterritorial | 2023 |
| Golden Tanning Ltd | Extraterritorial | 2024 |
| Golden Tiger Group Ltd | Manufacturing | 2025 |
| Golden Tigress Ltd | Construction | 2025 |
| Golden Wholesale Limited | Wholesale & retail | 2020 |
| Goldice Limited | Professional & scientific | 2013 |
| Goldice Properties & Allied Services Ltd | Real estate | 2024 |
| Goldiluxe Manes Ltd | Wholesale & retail | 2018 |
| Goldlink Consulting Ltd | Professional & scientific | 2019 |
| Goldlink Engineering Services Limited | Manufacturing | 2014 |
| Goldman Rose & Associates Ltd | Extraterritorial | 2021 |
| Goldspot Restaurant Limited | Hospitality | 2008 |
| Good Handshake Ltd | Professional & scientific | 2023 |
| GOOD2GO Care Services Limited | Health & social care | 2015 |
| Goodman Technology Limited | Information & communication | 2006 |
| Goodmays Chippy Ltd | Hospitality | 2025 |
| Goodnus Limited | Wholesale & retail | 2003 |
| Gorsi Limited | Construction | 2010 |
| Goshen Resources Ltd | Real estate | 2022 |
| Gosky & Shout Property Limited | Real estate | 2025 |
| Gothic Insurance Brokers Limited | Financial services | 1966 |
| GP Water Services Ltd | Construction | 2023 |
| GPC Global Ltd | Financial services | 2013 |
| GPC Maintenance Ltd | Construction | 2026 |
| GPC Securities Limited | Financial services | 2013 |
| GPS Communications Ltd | Information & communication | 2019 |
| GPS Contracting Ltd | Professional & scientific | 2019 |
| GPS Contracting Solutions (UK) Ltd | Professional & scientific | 2019 |
| GPS Finance Developments Ltd | Real estate | 2025 |
| GPS Finance Solutions Limited | Real estate | 2019 |
| GPS Payroll Ltd | Professional & scientific | 2019 |
| GR8 Glazing Ltd | Construction | 2017 |
| GR8TECH Services Ltd | Professional & scientific | 2026 |
| Grabcart Ltd | Wholesale & retail | 2025 |
| Grace Professionals Limited | Health & social care | 2024 |
| Grace Samuel Food N Cocktails Ltd | Hospitality | 2023 |
| Grace Tech Ltd | Wholesale & retail | 2020 |
| Gracejoy Limited | Health & social care | 2019 |
| Graceland Trading Services Ltd | Wholesale & retail | 2012 |
| Gracelay Ltd | Wholesale & retail | 2022 |
| Gracey Optimum Health Limited | Health & social care | 2024 |
| Gracie Rose Studio Ltd | Wholesale & retail | 2025 |
| Gracy's Limited | Information & communication | 2018 |
| Graham + Gray Property Consultants Ltd | Professional & scientific | 2024 |
| Graham Dashfield Associates Limited | Information & communication | 2007 |
| Graham Furse Consulting Limited | Professional & scientific | 2013 |
| Graham Lodge Management Limited | Households | 2005 |
| Graham Stoner Events Limited | Administrative & support | 2019 |
| Gramev Ltd | Health & social care | 2022 |
| Grampian Place Residents Association Limited | Households | 2006 |
| Grand Horizons Limited | Transport & logistics | 2018 |
| Grand Mill Place Management Limited | Households | 2003 |
| Grantak Ltd | Health & social care | 2021 |
| Graphicallie Designed Ltd | Extraterritorial | 2024 |
| Grasmere RTM Company Limited | Households | 2021 |
| Grasmere Way RTM Company Limited | Households | 2019 |
| Graves Ventures Limited | Information & communication | 2008 |
| Gravity PAY Ltd | Financial services | 2023 |
| Graybridge Services Ltd | Health & social care | 2016 |
| Greaak Limited | Administrative & support | 2026 |
| Great & Mighty Deeds Limited | Administrative & support | 2016 |
| Great Divine Resources Limited | Health & social care | 2022 |
| Great Exim Ltd | Wholesale & retail | 2016 |
| Great Fleete Management NO.6 Limited | Households | 2000 |
| Great Kabizo & Co Limited | Health & social care | 2017 |
| Great Parndon Community Association | Administrative & support | 2010 |
| Great Software Engineering Ltd | Wholesale & retail | 2022 |
| Greatness Seed Concept Ltd | Real estate | 2022 |
| Greaves Management Consultancy Ltd | Professional & scientific | 2024 |
| Green Care Consult Limited | Real estate | 2020 |
| Green Care Contracts Limited | Health & social care | 2012 |
| Green Care Plus Limited | Real estate | 2024 |