| Gaia Energy Ltd | Construction | 2017 |
| Gaia Impact Limited | Professional & scientific | 2022 |
| Garden Systems Limited | Extraterritorial | 2010 |
| GAS Monkey Heating Services Ltd | Construction | 2017 |
| Gayathri Power Engineering Services Limited | Professional & scientific | 2022 |
| GCO Ventures Ltd | Wholesale & retail | 2026 |
| GD Civils & Construction Ltd | Construction | 2022 |
| Gebbetto Ltd | Hospitality | 2025 |
| Gece Limited | Wholesale & retail | 2016 |
| Gemsmart Limited | Administrative & support | 2001 |
| Generation.Works Ltd | Information & communication | 2018 |
| Geoff Cole Professional Services Limited | Professional & scientific | 2016 |
| Geonest Holdings Ltd | Real estate | 2024 |
| George PR Ltd | Information & communication | 2015 |
| Gerbera Contractors Limited | Construction | 2019 |
| GG Trading Cards and Collectables Ltd | Wholesale & retail | 2022 |
| Ghyll House Publishing Limited | Manufacturing | 2001 |
| Gidney Plumbing & Heating Limited | Construction | 2018 |
| Gifford James Limited | Professional & scientific | 2014 |
| Giggs Capital Ltd | Real estate | 2018 |
| Gipping Valley Academy Trust | Education | 2014 |
| Gipping Valley IT Services Limited | Information & communication | 2010 |
| GJO Plumbing & Heating Services Limited | Construction | 2025 |
| GKR Infinita Limited | Health & social care | 2021 |
| Glazing Solutions Ltd | Construction | 2020 |
| Gleb Ltd | Administrative & support | 2018 |
| Global Investments Incorporation UK Limited | Professional & scientific | 2017 |
| Global Wing Chun Limited | Arts & recreation | 2016 |
| Globaluxe Properties Ltd | Households | 2025 |
| Glow Top Ltd | Wholesale & retail | 2026 |
| GLR Resourcing Limited | Extraterritorial | 2016 |
| GMJ Construction Limited | Construction | 2025 |
| Go Fork OFF Ltd | Transport & logistics | 2014 |
| Goals Transition Ltd | Health & social care | 2014 |
| Golding & Co Ltd | Professional & scientific | 2025 |
| Good Vibes Coffee Ltd | Hospitality | 2020 |
| Goodbon Technology Limited | Wholesale & retail | 2021 |
| GPC Services Limited | Professional & scientific | 2025 |
| Grab a Burger Ltd | Hospitality | 2021 |
| Graham Moore Electrical Limited | Construction | 2008 |
| Grange Farm Renewable Energy Limited | Water & waste | 2013 |
| Great Escapes Worldwide Limited | Arts & recreation | 2018 |
| Greek Olives (Suffolk) Limited | Manufacturing | 1996 |
| Green Art Ltd | Administrative & support | 2018 |
| Green Bagan Ltd | Hospitality | 2025 |
| Green Building (Suffolk) Limited | Construction | 2023 |
| Green Door Property Investments Limited | Real estate | 2022 |
| Green Edge Solutions Limited | Professional & scientific | 2004 |
| Green Gnomes Ltd | Administrative & support | 2021 |
| Green Pond Ltd | Hospitality | 2019 |
| Greenfield Durrant Holdings Limited | Real estate | 2019 |
| Greenfield Durrant Limited | Administrative & support | 2007 |
| Greenfield Durrant Wilby Limited | Real estate | 2025 |
| Greenlife Renewables Ltd. | Construction | 2012 |
| Greenoak Contracts Ltd | Construction | 2023 |
| Greenriver Technology World Ltd | Information & communication | 2011 |
| Greensteps Limited | Wholesale & retail | 2006 |
| Grid Electrical Safety Ltd | Construction | 2019 |
| Griffin Consultancy & Recruitment Ltd | Professional & scientific | 2025 |
| Groundscape Projects Ltd | Construction | 2022 |
| Grove Farm Rentals Limited | Hospitality | 2023 |
| Grow Strategy Consulting Limited | Professional & scientific | 2011 |
| Growsure Accounting Limited | Professional & scientific | 2025 |
| GRS Management Accounting Limited | Professional & scientific | 2011 |
| GT Carpentry & Building Limited | Construction | 2025 |
| Guildenacre Limited | Arts & recreation | 2024 |
| Gwcad Holdco Limited | Financial services | 2025 |
| Gwcm Ltd | Administrative & support | 2019 |
| H & M Telecoms Ltd | Transport & logistics | 2018 |
| H D Brooks Limited | Health & social care | 2016 |
| H R T Electrical Ltd | Construction | 2019 |
| H&Scts Ltd | Professional & scientific | 2016 |
| H.G.Thurston & Co.Limited | Real estate | 1958 |
| Haelan Limited | Health & social care | 2013 |
| Hair by Aimee Harris Limited | Other services | 2023 |
| Hair by Stephen Anderson Limited | Other services | 2002 |
| Hair Fifteen Ltd | Other services | 2022 |
| Halo Sunblinds Limited | Wholesale & retail | 2022 |
| Halt Engineering Ltd | Construction | 2026 |
| Hamilton Smith (Debenham) Limited | Real estate | 2001 |
| Handbridge Property Group Limited | Real estate | 2020 |
| Hanesca Consulting Limited | Professional & scientific | 2000 |
| Hangar 27 Limited | Wholesale & retail | 2025 |
| Hanneya Limited | Financial services | 2021 |
| Hansord Limited | Hospitality | 2022 |
| Happy Orangutan Eco Supplies Ltd | Wholesale & retail | 2019 |
| Harper Safety Risk Management Limited | Professional & scientific | 2006 |
| Harriet Flavel Limited | Professional & scientific | 2022 |
| Hart Leisure Ltd | Arts & recreation | 2024 |
| Hartbuild Ltd | Construction | 2005 |
| Harwoods (Battisford) Limited | Agriculture & fishing | 1958 |
| Hass Developments Ltd | Construction | 2021 |
| Hassenbrook Court (2015) Ltd | Real estate | 2015 |
| Haughley Holdings Limited | Professional & scientific | 2020 |
| Haughley Park Limited | Real estate | 2002 |
| Haven Graphics Ltd. | Manufacturing | 2002 |
| Haven Social Solutions Limited | Health & social care | 2025 |
| Hayden Power Property Management Ltd | Real estate | 2020 |
| Hayward Moon LLP | | 2008 |
| HBC Accountants Limited | Professional & scientific | 2023 |