| Genx Technologies Limited | Information & communication | 2012 |
| GEO Carpentry Limited | Construction | 2025 |
| Geocube Ltd | Wholesale & retail | 2023 |
| Geoffrey Griggs Ltd | Other services | 2023 |
| George & Christie Ltd | Wholesale & retail | 2011 |
| George Proctor & Partner (Petts Wood) Limited | Real estate | 2012 |
| Georgiou Music Ltd | Information & communication | 2022 |
| Geosurgicalassist Ltd | Health & social care | 2025 |
| Gept Enterprises Ltd | Professional & scientific | 2026 |
| Gertrude Suleiman Ltd | Health & social care | 2022 |
| GES Heating Ltd | Construction | 2021 |
| GET Wired Ltd | Construction | 2021 |
| Getfinup Ltd | Education | 2026 |
| Geucee Beauty Ltd | Wholesale & retail | 2022 |
| Gezer Fish and Chips Limited | Hospitality | 2025 |
| GFS Trading Limited | Professional & scientific | 2010 |
| GG 2023 Limited | Professional & scientific | 2018 |
| GG-203-183 Limited | Real estate | 2023 |
| GG-872-703 Limited | Real estate | 2023 |
| GH & HH Holdings Limited | Real estate | 2022 |
| Ghkl Limited | Professional & scientific | 2021 |
| Giant Floors Limited | Construction | 2012 |
| Giant Squid Productions Limited | Information & communication | 2020 |
| Giant Steps Nursery Ltd | Health & social care | 2018 |
| Giant Steps Sensory Movement CIC | Education | 2025 |
| Gibbs Group Services Limited | Construction | 2024 |
| Gibsons DRY Cleaning Ltd | Other services | 2021 |
| Giftaider Limited | Information & communication | 2024 |
| Giftrete Ltd | Administrative & support | 2017 |
| Giftspage Limited | Wholesale & retail | 2011 |
| Gila Ltd | Other services | 2011 |
| Gillmans Supplies Ltd | Wholesale & retail | 2025 |
| Gionee Ltd | Professional & scientific | 2013 |
| Girish Property Limited | Real estate | 2017 |
| Gissing Consulting LLP | | 2010 |
| GIW Property Limited | Real estate | 2020 |
| Gjenesis Homes Ltd | Real estate | 2023 |
| Gjenesis Limited | Professional & scientific | 2009 |
| GJM Capital Limited | Professional & scientific | 2025 |
| GJW Services Limited | Construction | 2003 |
| GL Electrical Compliance Ltd | Construction | 2021 |
| GL Membership Ltd | Administrative & support | 2021 |
| Glades Retail Limited | Wholesale & retail | 2022 |
| Glambient Ltd. | Information & communication | 2025 |
| Glamorousstrandss Ltd | Other services | 2025 |
| Glencrown Limited | Health & social care | 2023 |
| Glenwood Property Limited | Real estate | 2018 |
| Glitbase Ltd | Information & communication | 2025 |
| Global Bottle Exchange Ltd | Wholesale & retail | 2025 |
| Global Compliance Professionals Ltd | Construction | 2024 |
| Global Consultancy Investments Limited | Information & communication | 2017 |
| Global Freight Carrier Group Ltd | Transport & logistics | 2022 |
| Global Group International Limited | Professional & scientific | 2023 |
| Global Healthcare Concepts Ltd | Health & social care | 2011 |
| Global Investment Properties Limited | Construction | 2016 |
| Global K & S Ltd | Construction | 2019 |
| Global Marketing Logic Ltd | Professional & scientific | 2011 |
| Global Pharmaceutical Leaders' Club Limited | Professional & scientific | 2021 |
| Global Propxchange Ltd | Households | 2018 |
| Global Wholesale Distribution Limited | Agriculture & fishing | 2025 |
| Globalfx.Com Limited | Financial services | 2000 |
| Globean Foods Ltd | Hospitality | 2022 |
| Globovist Limited | Financial services | 2021 |
| Glory Enterprise Ltd | Wholesale & retail | 2019 |
| Glory Health Ltd | Health & social care | 2015 |
| Gloucester Street Productions Limited | Arts & recreation | 2021 |
| Glovia Limited | Health & social care | 2026 |
| GLR Design Limited | Manufacturing | 2019 |
| GLV Business Services UK Limited | Information & communication | 2004 |
| Glynn Site Solutions Ltd | Construction | 2022 |
| GM Grocery Ltd | Wholesale & retail | 2025 |
| Gmathew Ltd | Health & social care | 2020 |
| GN Stone Limited | Manufacturing | 2024 |
| Go Flush Plumbing and Heating Limited | Construction | 2021 |
| Go PCO Ltd | Administrative & support | 2025 |
| Go-Develop (Quarry Road) Limited | Construction | 2018 |
| Goalpoint Limited | Administrative & support | 2021 |
| Goddington Manor Leaseholders Management Company Ltd | Households | 2024 |
| Gofix Carpentry Ltd | Construction | 2013 |
| Gogglebox TV & Video Limited | Manufacturing | 2000 |
| Gold Dynamic Builders Ltd | Construction | 2022 |
| Golden Bites' Mixed Delights Ltd | Wholesale & retail | 2026 |
| Golden Glide Ltd | Information & communication | 2024 |
| Golden Lotus House Limited | Hospitality | 2023 |
| Goldenfield Property Developments Ltd | Construction | 2025 |
| Goleka Consulting Ltd | Professional & scientific | 2022 |
| Golf Pars Limited | Wholesale & retail | 2023 |
| GOLIATH06 Ltd | Manufacturing | 2024 |
| Gonnect Ltd | Information & communication | 2022 |
| Good Cleaning Practices Ltd | Administrative & support | 2024 |
| Good Fanz Limited | Administrative & support | 2026 |
| Good for Babies Limited | Manufacturing | 2021 |
| Good Life Plus Limited | Administrative & support | 2020 |
| Good Nature Clinic Ltd | Other services | 2012 |
| Good Property Management Limited | Real estate | 2026 |
| Good With Woods Carpentry Ltd | Construction | 2020 |
| Goodbury Developments Limited | Construction | 2014 |
| Goodbury Holdings Limited | Financial services | 2014 |
| Goodlyheritage Limited | Hospitality | 2013 |
| Goodsoft Ltd | Financial services | 2020 |