| Grange Management Solutions Ltd | Professional & scientific | 2025 |
| Grangefrost Holdings Limited | Professional & scientific | 2017 |
| Grangefrost Limited | Professional & scientific | 2005 |
| Grangewards Solutions Ltd | Agriculture & fishing | 2016 |
| GRANIUM1 Limited | Wholesale & retail | 2017 |
| Grant Ceilings & Interiors Ltd | Construction | 2021 |
| Grant Morgan Trading Ltd | Wholesale & retail | 2019 |
| Grant Property Assets Ltd | Extraterritorial | 2025 |
| Grant Shortland (Interiors) Limited | Construction | 2009 |
| Granville JA Car Sales Limited | Wholesale & retail | 2025 |
| Granville Store Ltd | Wholesale & retail | 2025 |
| Granville Supplies Holdings Limited | Financial services | 2024 |
| Granville Supplies(Peterborough)Limited | Wholesale & retail | 1957 |
| Graphene Foundations Ltd | Real estate | 2022 |
| Graphics UK (Peterborough) Ltd | Manufacturing | 2022 |
| Grasmere Farm Limited | Agriculture & fishing | 2007 |
| Grav Media Limited | Information & communication | 2025 |
| Gravitate Digital Limited | Financial services | 2016 |
| Gravitate Group Limited | Financial services | 2019 |
| Gravitate Media Limited | Administrative & support | 2019 |
| Gravity Systems Ltd | Manufacturing | 2014 |
| Gray Enterprises Limited | Professional & scientific | 2014 |
| Gray Estates Group Limited | Real estate | 2026 |
| Gray Lettings Limited | Real estate | 2017 |
| GRB Commercial Finance Limited | Financial services | 2004 |
| GRB Financial Services Limited | Financial services | 2003 |
| GRB Properties Limited | Real estate | 2015 |
| GRC Signature Ltd | Construction | 2026 |
| Great Bowden Green Energy Limited | Professional & scientific | 2022 |
| Great Gidding Green Energy Limited | Professional & scientific | 2022 |
| Great Haddon Management Company Limited | Households | 2021 |
| Great Haddon Wood (Peterborough) Managing Company Limited | Professional & scientific | 2023 |
| Great Heck Green Energy Limited | Professional & scientific | 2022 |
| Great Medicals Limited | Health & social care | 2025 |
| Great Staff Ltd | Transport & logistics | 2015 |
| Greater Ltd | Construction | 2018 |
| Greater Peterborough Network Community Interest Company | Other services | 2015 |
| Greatest Music of ALL Time Limited | Information & communication | 2025 |
| Greatest Podcasts of ALL Time Limited | Information & communication | 2025 |
| Greatline Building Services Ltd | Construction | 2017 |
| Green Arrow Technical Services Limited | Wholesale & retail | 2025 |
| Green Circle Logistics Limited | Transport & logistics | 2021 |
| Green Circle Plant Limited | Extraterritorial | 2020 |
| Green City Services Ltd | Construction | 2025 |
| Green City Solutions Limited | Information & communication | 2010 |
| Green Consultants Ltd | Transport & logistics | 2023 |
| Green Cufflinks Ltd | Manufacturing | 2019 |
| Green Energy Parks Consulting Limited | Professional & scientific | 2012 |
| Green Energy Parks Limited | Professional & scientific | 2009 |
| Green Energy Switch Limited | Professional & scientific | 2008 |
| Green Gates Management Company Limited | Households | 2002 |
| Green Lake Property Limited | Real estate | 2021 |
| Green Land Agriculture Ltd | Agriculture & fishing | 2024 |
| Green Leaf Air Conditioning Ltd | Construction | 2026 |
| Green MAN Antiques and Restorations Limited | Wholesale & retail | 2008 |
| Green Mini Market Ltd | Wholesale & retail | 2023 |
| Green Sandpiper PM Ltd | Professional & scientific | 2024 |
| Green Shoots Peterborough Limited | Information & communication | 2019 |
| Green Shop Whittlesey Ltd | Wholesale & retail | 2026 |
| Green Side Transport Ltd | Transport & logistics | 2025 |
| Green Solar Clean Ltd | Manufacturing | 2015 |
| Green Soul Garden Maintenance Ltd | Other services | 2026 |
| Green Spatial Insight Limited | Information & communication | 2015 |
| Green Star Media Ltd | Information & communication | 1995 |
| Green Steel & Cladding Limited | Construction | 2010 |
| Green Store (Peterborough) Ltd | Wholesale & retail | 2018 |
| Green Store PE4 Ltd | Transport & logistics | 2026 |
| Green Technologies Limited | Manufacturing | 2006 |
| Green Tread UK Ltd | Water & waste | 2024 |
| Green Ventures Ltd | Professional & scientific | 2010 |
| Green Villa Services Ltd | Construction | 2024 |
| Green Works Recycling Limited | Information & communication | 2019 |
| Greenaway Property Ltd | Real estate | 2020 |
| Greenbank Agriculture Limited | Agriculture & fishing | 2022 |
| Greencroft Properties Ltd | Real estate | 2022 |
| Greendeal Construction Ltd | Construction | 2012 |
| Greenfore Limited | Other services | 2002 |
| Greenforest Consulting Limited | Professional & scientific | 2025 |
| Greenharvest Produce Ltd | Wholesale & retail | 2025 |
| Greenhill Healthcare Ltd | Professional & scientific | 2021 |
| Greenhill Holds Ltd | Financial services | 2024 |
| Greenhill Property INV Ltd | Real estate | 2024 |
| Greenhow Group Ltd | Financial services | 2025 |
| Greenhow Scaffolding Ltd | Construction | 2020 |
| Greenhow Storage Ltd | Transport & logistics | 2025 |
| Greenkraft Ltd | Wholesale & retail | 2026 |
| Greenland Tree & Garden Services Ltd | Administrative & support | 2026 |
| Greenlands Fencing Limited | Financial services | 2023 |
| Greenlands Group Limited | Professional & scientific | 2014 |
| Greenleaf Produce Ltd | Wholesale & retail | 2026 |
| Greenlight Partners LLP | | 2020 |
| Greenline DS Ltd | Transport & logistics | 2018 |
| Greenmill Residents Company Limited | Households | 1998 |
| Greensand Services Limited | Construction | 2024 |
| Greenscape Holdings Ltd | Financial services | 2025 |
| Greensprings Limited | Administrative & support | 1981 |
| Greenstones (Whittlesey) Limited | Extraterritorial | 2015 |
| Greenstones Corporate Services Limited | Extraterritorial | 2012 |
| Greenstones Financial Services Limited | Financial services | 2013 |
| Greenstones Holdings Limited | Financial services | 2005 |