| Grant Barnett Endeavours LLP | | 2024 |
| Granta (Group) Ltd | Professional & scientific | 2014 |
| Granta Advanced Magnetics and Electronics Limited | Professional & scientific | 2024 |
| Granta Architects Ltd. | Information & communication | 2003 |
| Granta Automation Ltd | Manufacturing | 2014 |
| Granta Biotechnology Limited | Professional & scientific | 2003 |
| Granta Capital Limited | Real estate | 2023 |
| Granta Development Management Ltd | Construction | 2023 |
| Granta Entrance Limited | Administrative & support | 2010 |
| Granta Estates Limited | Real estate | 2025 |
| Granta Global Education Ltd | Administrative & support | 2023 |
| Granta Heritage Limited | Professional & scientific | 2019 |
| Granta Hill Consulting Ltd | Other services | 2017 |
| Granta Innovation Ltd | Professional & scientific | 2018 |
| Granta Land Limited | Real estate | 2025 |
| Granta LLP | | 2020 |
| Granta Medical Services Limited | Health & social care | 2016 |
| Granta Park Estates Limited | Real estate | 1990 |
| Granta Strategy Limited | Professional & scientific | 2019 |
| Grantchester Building and Renovations Limited | Construction | 2014 |
| Grantchester Hotels Limited | Hospitality | 2018 |
| Grantchester Tea Rooms Ltd | Hospitality | 2022 |
| Grantgang Ltd | Agriculture & fishing | 2018 |
| Grape Britannia Ltd | Wholesale & retail | 2019 |
| Grapevineuk Limited | Information & communication | 2019 |
| Graph Minerals Ltd. | Wholesale & retail | 2015 |
| Graphyc Ltd | Information & communication | 2017 |
| Grasshopper Park Limited | Real estate | 2020 |
| Gratia Consultancy Limited | Professional & scientific | 2011 |
| Graticules Optics Limited | Manufacturing | 1978 |
| Gratitude & Pbtg Holdings Ltd | Administrative & support | 2025 |
| Gratnells Limited | Manufacturing | 1940 |
| Gratwick Homes Ltd | Manufacturing | 2018 |
| Graveltrack Consulting Ltd | Information & communication | 2022 |
| Gray & Toynbee (Cambridge South) Ltd | Real estate | 2025 |
| Gray & Toynbee (Cambridge) Ltd | Real estate | 2022 |
| Gray & Toynbee (North) Ltd | Real estate | 2023 |
| Gray Close Management Limited | Households | 2022 |
| Gray LOW Ltd | Manufacturing | 2024 |
| Gray's Inn 10 Limited | Real estate | 2007 |
| Gray's Inn 11 Limited | Real estate | 2012 |
| Gray's Inn Capital 2 Limited | Real estate | 2016 |
| Gray's Inn Capital Limited | Real estate | 2011 |
| Gray's Inn Holdings Limited | Real estate | 2011 |
| GRC Composites Ltd | Manufacturing | 2025 |
| GRD Technics Ltd | Manufacturing | 2025 |
| Greanware Ltd | Water & waste | 2025 |
| Great Chesterford Court (Phase 2) Limited | Real estate | 2000 |
| Great Mark Investment Co., Limited | Extraterritorial | 2004 |
| Great ST Mary's Trading Limited | Hospitality | 2020 |
| Great Wilbraham Limited | Wholesale & retail | 2025 |
| Great World Trading (UK) Ltd | Wholesale & retail | 2024 |
| Greater Cambridge Construction Limited | Construction | 2021 |
| Greater Cambridge Development Corporation Limited | Construction | 2026 |
| Greaves Manufacturing Support Services (Uk/Asia) Ltd | Professional & scientific | 2016 |
| Grec Gabriel Ltd | Manufacturing | 2025 |
| Greece Pantori Co., Ltd | Mining & quarrying | 2026 |
| Greedy Parker Ltd | Wholesale & retail | 2020 |
| Greei Trade Ltd | Wholesale & retail | 2025 |
| Greek Gourmet Kitchen Ltd | Hospitality | 2025 |
| Greek Lane Creative Limited | Administrative & support | 2026 |
| Green Acres Professional Grounds Maintenance Limited | Administrative & support | 2011 |
| Green and BOW Limited | Hospitality | 2016 |
| Green ASH Consulting Ltd | Professional & scientific | 2024 |
| Green Bamboo Media Ltd | Wholesale & retail | 2025 |
| Green Blade Products Limited | Wholesale & retail | 2025 |
| Green Blue YOU Ltd | Wholesale & retail | 2020 |
| Green Cave Limited | Construction | 2025 |
| Green Custard Ltd | Information & communication | 2009 |
| Green DOT Ltd | Water & waste | 2022 |
| Green END Commercial Limited | Construction | 2025 |
| Green Energy Options Ltd | Manufacturing | 2006 |
| Green Environmental Consultants Limited | Professional & scientific | 2005 |
| Green FM Consultants Ltd | Professional & scientific | 2025 |
| Green Foods Co., Ltd. | Extraterritorial | 2017 |
| Green Forest Supply Chainco. Ltd | Administrative & support | 2021 |
| Green HAT Properties Limited | Real estate | 2017 |
| Green Heat Limited | Professional & scientific | 1990 |
| Green Heating Projects Ltd | Construction | 2022 |
| Green Hedges Roadway Management Company Limited | Real estate | 2007 |
| Green Leaves Garden Services Ltd | Administrative & support | 2020 |
| Green Matrix Homes Limited | Professional & scientific | 2024 |
| Green Nest (CB1) Ltd | Wholesale & retail | 1998 |
| Green Nest (CB3) Ltd | Wholesale & retail | 2022 |
| Green Platypus Limited | Real estate | 2013 |
| Green Pluser Electric Co., Ltd | Manufacturing | 2021 |
| Green Pyrus Ltd | Wholesale & retail | 2014 |
| Green Springs Care Services Ltd | Health & social care | 2024 |
| Green Street Properties (Cambridge) Limited | Construction | 2014 |
| Green Track Farming LLP | | 2008 |
| Green Twin Software Ltd | Information & communication | 2019 |
| Green Weigh Retail Ltd | Wholesale & retail | 2020 |
| Green's Mobile Barber Ltd | Wholesale & retail | 2021 |
| Greenacre (Stapleford) Limited | Financial services | 2019 |
| Greenacre Associates Ltd | Professional & scientific | 2011 |
| Greencannon Limited | Administrative & support | 2001 |
| Greenclim Consulting Ltd | Professional & scientific | 2019 |
| Greenderm Ltd | Health & social care | 2023 |
| Greene and Partners Limited | Administrative & support | 2005 |
| Greener by the Hour Ltd | Administrative & support | 2020 |