| Green Comms Limited | Transport & logistics | 2021 |
| Green Eco Energy (UK) Limited | Construction | 2013 |
| Green Energy Access Solutions Limited | Construction | 2025 |
| Green Energy Finance Solutions Limited | Financial services | 2020 |
| Green Energy Fuel Holdings Limited | Professional & scientific | 2026 |
| Green Energy Fuel Limited | Water & waste | 2019 |
| Green Energy Power Solutions Ltd | Construction | 2009 |
| Green Family Investments and Holdings Limited | Financial services | 2021 |
| Green Food DON Ltd | Hospitality | 2024 |
| Green Frog Signs Limited | Manufacturing | 2010 |
| Green Golf Ltd | Wholesale & retail | 2025 |
| Green Gravity Walls UK Limited | Wholesale & retail | 2023 |
| Green Grow Consultancy Ltd | Agriculture & fishing | 2020 |
| Green Haus Renewables & Construction Ltd | Construction | 2023 |
| Green Heat Pump Solutions Limited | Construction | 2023 |
| Green Hill Holiday Lets Limited | Hospitality | 2021 |
| Green Light Signalling Ltd | Professional & scientific | 2014 |
| Green Management Systems Limited | Professional & scientific | 2024 |
| Green Meadow 2018 Ltd | Construction | 2018 |
| Green OWL Advisory Ltd | Professional & scientific | 2014 |
| Green Recovery Projects Ltd | Financial services | 2020 |
| Green Spark (Environmental) Limited | Professional & scientific | 2001 |
| Green Square Lawn Care Ltd | Administrative & support | 2021 |
| Green Tech Heating Limited | Construction | 2021 |
| Green Tower Consulting Ltd | Professional & scientific | 2023 |
| Green Tree Select Limited | Wholesale & retail | 2011 |
| Green Tree Sustainable Farming Ltd | Real estate | 2022 |
| Green Wind Specialist Engineering Ltd | Professional & scientific | 2021 |
| Greenacres Maintenance Ltd | Households | 2021 |
| Greenbank Court Management Company (Nottingham) Limited | Real estate | 1988 |
| Greenes Court Management Company Limited | Households | 1995 |
| Greenfield (Sprotbrough) Limited | Professional & scientific | 1994 |
| Greenfield Construction and Developments Ltd | Construction | 2016 |
| Greenfield Joinery Limited | Construction | 2013 |
| Greenfield Studio Ltd | Other services | 2026 |
| Greenfox Management Ltd | Other services | 2010 |
| Greenharbour Solutions Ltd | Extraterritorial | 2025 |
| Greenhaven Solutions Ltd | Extraterritorial | 2026 |
| Greenholme Lakes Limited | Real estate | 2022 |
| Greenleaf Dynamics Ltd | Extraterritorial | 2026 |
| Greenleaf Trees Services Ltd | Administrative & support | 2024 |
| Greenline Accountants and Tax Advisors Ltd | Professional & scientific | 2016 |
| Greenline Groundcare Ltd | Administrative & support | 2025 |
| Greenridge Consulting Ltd | Extraterritorial | 2026 |
| Greens Desserts Property UK Ltd | Real estate | 2015 |
| Greens Desserts UK Ltd | Manufacturing | 2015 |
| Greens Steel Ltd | Wholesale & retail | 2020 |
| Greensbarberingcompany Ltd | Other services | 2022 |
| Greentree Cars Ltd | Wholesale & retail | 2009 |
| Greenwarden Estates Ltd | Extraterritorial | 2026 |
| Greenwell Developments Ltd | Construction | 2020 |
| Greenwell Energy Systems Ltd | Extraterritorial | 2026 |
| Greenwich Link UK Ltd | Administrative & support | 2021 |
| Greg & Margo Ltd | Transport & logistics | 2020 |
| Greg Thompson Limited | Construction | 2017 |
| Greg's Appliances Ltd | Wholesale & retail | 2018 |
| Gregory Climate Services Ltd | Construction | 2024 |
| Gregory Davison LLP | | 2023 |
| Gregory Infrastructure Engineering Limited | Professional & scientific | 2014 |
| Gregory's (Leather) Limited | Wholesale & retail | 1948 |
| Gregos Transport Ltd | Transport & logistics | 2018 |
| Grenoble Invest Ltd | Professional & scientific | 2019 |
| Gresham Property Investments Limited | Real estate | 2026 |
| Grey Goose (Doncaster) Ltd | Hospitality | 2026 |
| Greyhaven Enterprises Ltd | Extraterritorial | 2026 |
| Greystar Communications Ltd | Information & communication | 2019 |
| GRG Business Solutions Limited | Financial services | 2014 |
| GRI Trans Ltd | Transport & logistics | 2025 |
| Griddlez Kitchen Limited | Hospitality | 2026 |
| Gridspan Utilities Limited | Professional & scientific | 2026 |
| Griff Estates Ltd | Real estate | 2020 |
| Griff's TM Ltd | Public administration | 2025 |
| Griffin Brickwork Ltd | Construction | 2021 |
| Grillporium Ltd | Hospitality | 2021 |
| Grillys Limited | Hospitality | 2024 |
| Grime Fighters Pressure Washing Ltd | Administrative & support | 2023 |
| Grimethorpe Carwash 1 Limited | Administrative & support | 2026 |
| Gripen Properties Ltd | Real estate | 2025 |
| Grizzly Systems Ltd | Information & communication | 2025 |
| GRL Property Investments Limited | Real estate | 2021 |
| GRN Components Limited | Wholesale & retail | 2024 |
| GRN Mart Ltd | Health & social care | 2019 |
| GRO Box Limited | Wholesale & retail | 2024 |
| Gromwell Ltd | Information & communication | 2015 |
| Groove Reformer Pilates Ltd | Arts & recreation | 2024 |
| Grosvenor Eyre Limited | Professional & scientific | 2023 |
| Ground Commercial Properties Limited | Real estate | 2007 |
| Ground Floor Kitchen Limited | Hospitality | 2019 |
| Ground Scan Surveys Ltd | Professional & scientific | 2018 |
| Ground-Tec Construction Ltd | Construction | 2018 |
| Ground-Tec Management Ltd | Other services | 2025 |
| Groundforge Construction Ltd | Extraterritorial | 2026 |
| Groundtech Surveys Ltd | Construction | 2024 |
| Group Equine Racing Stables Ltd | Arts & recreation | 2025 |
| Group Forte Ltd | Financial services | 2021 |
| Group Mgmt Ltd | Wholesale & retail | 2020 |
| Group SBN Ltd | Wholesale & retail | 2026 |
| Grove Civil Engineering Limited | Construction | 2021 |
| Grove Farms Limited | Agriculture & fishing | 1958 |
| Grove House Advisory Limited | Real estate | 2015 |