| Galrigside Farm Ltd. | Hospitality | 2021 |
| Garagisti Limited | Professional & scientific | 2011 |
| Garda Enterprises Ltd | Information & communication | 2009 |
| Garda Industries Limited | Extraterritorial | 2010 |
| Garde (UK) Limited | Administrative & support | 2008 |
| Garden Furniture Global Ltd. | Wholesale & retail | 2013 |
| Gardiare Consultancy Limited | Information & communication | 2016 |
| Gargill Flat Management Company Limited | Administrative & support | 1982 |
| Garnet Properties (London) Limited | Households | 2025 |
| Gary Anderson Limited | Manufacturing | 2018 |
| Gary Kemp Design Ltd | Professional & scientific | 2025 |
| GAS and Plumbing Essex Ltd | Construction | 2024 |
| GAT Build Ltd | Construction | 2020 |
| Gate Street Development Limited | Construction | 2025 |
| Gavin Dandridge Limited | Information & communication | 2014 |
| GB Method Ltd | Education | 2021 |
| GB Tennis Girls Limited | Arts & recreation | 2013 |
| GC Consulting Limited | Professional & scientific | 2025 |
| GC Roofing UK Limited | Construction | 2009 |
| GCA Transport Ltd | Transport & logistics | 1981 |
| GCB Professional Solutions Limited | Information & communication | 2013 |
| GCH Decorating & Property Services Ltd | Construction | 2008 |
| GD Healthcare Services Limited | Health & social care | 2023 |
| Gdaarsl Limited | Information & communication | 2023 |
| Gdmk Holding Limited | Financial services | 2023 |
| GDR Electrical Limited | Construction | 2021 |
| Ge-Aet Limited | Professional & scientific | 2011 |
| Gecko Build Ltd | Construction | 2018 |
| Gelutzu Ltd | Construction | 2014 |
| GEM Upholstery Limited | Wholesale & retail | 2013 |
| Gemclear Ltd | Other services | 2013 |
| Gemino Advisory LLP | | 2025 |
| GEN Innovations Ltd | Arts & recreation | 2026 |
| Genaesis Services Limited | Hospitality | 2023 |
| General Property Services Ltd | Real estate | 2016 |
| Genpotential Limited | Professional & scientific | 2026 |
| Genuine Solutions Group Limited | Professional & scientific | 2013 |
| George Hull Group (Mayland) Ltd | Construction | 2021 |
| George Hull Group Limited | Construction | 2024 |
| George Inns Ltd | Hospitality | 2012 |
| George Park (Lotmead) Management Company Limited | Households | 2024 |
| Georgiou Limited | Construction | 2025 |
| Geotom Waste Management Ltd | Water & waste | 2019 |
| Gerards Group Limited | Financial services | 2022 |
| German Spare Parts Limited | Wholesale & retail | 2013 |
| GET Blinds Limited | Wholesale & retail | 2020 |
| GET Go Commercial Finance Ltd | Financial services | 2022 |
| GET Marketing Online Ltd | Information & communication | 2018 |
| Getpland Ltd | Financial services | 2020 |
| Gettinfit Limited | Wholesale & retail | 2023 |
| Gffc Ltd | Professional & scientific | 2023 |
| GFR Homes & Lettings Ltd | Real estate | 2025 |
| GFT Enterprise Ltd | Information & communication | 2025 |
| GGA Homes Ltd | Real estate | 2026 |
| GGS Heating & Plumbing Ltd | Construction | 2026 |
| GH Baggs Ltd | Professional & scientific | 2023 |
| GH Internal Finishing Ltd | Construction | 2019 |
| Ghains Ltd | Hospitality | 2023 |
| Gharonda Shop Ltd | Wholesale & retail | 2024 |
| GHD Ecom Ltd | Wholesale & retail | 2024 |
| Ghosh Letting & Management Ltd | Real estate | 2022 |
| Ghosh Properties Ltd | Real estate | 2019 |
| GHR Hire and Sales Limited | Administrative & support | 2023 |
| Giaa Homes Ltd | Hospitality | 2018 |
| Gift Base Ltd | Wholesale & retail | 2014 |
| Gillian Brooks Ltd | Professional & scientific | 2024 |
| Gilliland Medical Limited | Health & social care | 2023 |
| Gilmore's Plumbing Ltd | Construction | 2025 |
| Gineva Homes Ltd | Real estate | 2019 |
| Giuliana PRZ Design Ltd | Professional & scientific | 2019 |
| GJ Bowmer (Waste Disposal) Limited | Water & waste | 2000 |
| GJ Guard Padel Limited | Arts & recreation | 2026 |
| GKP Trading Ltd | Financial services | 2013 |
| Glacier Creative Limited | Administrative & support | 2019 |
| Glam UP by Jade Ltd | Other services | 2020 |
| Glencot Development & Design Co Limited | Professional & scientific | 1978 |
| Glenich Property Ltd | Real estate | 2021 |
| GLG Neurodevelopmental Assessments Ltd | Health & social care | 2023 |
| Glitter Gals Limited | Extraterritorial | 2020 |
| Glitterati Designs Limited | Extraterritorial | 2016 |
| Global Associated Aviation Limited | Transport & logistics | 2014 |
| Global Domains Limited | Information & communication | 2014 |
| Global Healing Project Ltd | Arts & recreation | 2024 |
| Global MEP Ltd | Construction | 2018 |
| Global Recycling Corp Ltd Ltd | Manufacturing | 2012 |
| Global Sources Limited | Administrative & support | 2002 |
| Global Sport Sponsorship Limited | Administrative & support | 2025 |
| Globe Air Motors & High Pressure Equipment Ltd | Manufacturing | 2022 |
| Globe Manufacturing Ltd | Manufacturing | 1954 |
| Globe MOT Centre & Garage Ltd. | Wholesale & retail | 2012 |
| Globe UK Holding Ltd | Professional & scientific | 2001 |
| Glowhaus Beauty & Wellness Ltd | Wholesale & retail | 2025 |
| Glynn Quinn Foods Ltd | Hospitality | 2020 |
| GM Integrated Services Limited | Construction | 2014 |
| GM Moore Limited | Professional & scientific | 2014 |
| GM Properties Group Ltd | Real estate | 2020 |
| GM Talent Solutions Limited | Administrative & support | 2023 |
| GM Toucari Ltd | Professional & scientific | 2008 |
| GMA Spmu Academy Limited | Education | 2022 |
| GMJ Windows Doors and Locks Limited | Construction | 2013 |