| Grangewood Park (Burnham on Crouch) Residents Management Company Limited | Households | 2018 |
| Granite Worktops of York Limited | Wholesale & retail | 2013 |
| Grant Ashley Limited | Other services | 2005 |
| Grant Property Management Limited | Real estate | 2017 |
| Grant&Sons Builders Ltd | Administrative & support | 2015 |
| Grantem Limited | Manufacturing | 2018 |
| Granton Property Ltd | Real estate | 2024 |
| Granton Trading Ltd | Wholesale & retail | 2011 |
| Grants Pro-Agri Limited | Agriculture & fishing | 1987 |
| Grantside (BGS) LLP | | 2006 |
| Grantside (Ceph) LLP | | 2006 |
| Grantside (Norfolk Street) Ltd | Construction | 2002 |
| Grantside (North Star Central) Ltd | Real estate | 2020 |
| Grantside Limited | Construction | 1993 |
| Grantside Projects Limited | Real estate | 2020 |
| Grantside Ventures Limited | Construction | 2000 |
| Granville G Hull & SON Limited | Construction | 2004 |
| Graphicland Ltd | Professional & scientific | 2019 |
| Graphicpro Ltd | Wholesale & retail | 2014 |
| Graphics Direct Limited | Extraterritorial | 2016 |
| Grasmead Properties Limited | Households | 2001 |
| Grass and Track Services Limited | Professional & scientific | 2016 |
| Gravica Limited | Professional & scientific | 2010 |
| Gravitas Studio Ltd | Professional & scientific | 2018 |
| Gravitax Ltd | Professional & scientific | 2002 |
| Gravity Grips Limited | Professional & scientific | 2025 |
| Gravy Baby 80'S Limited | Hospitality | 2024 |
| Gravy Crew Games Ltd | Information & communication | 2024 |
| Gray Community Care Limited | Health & social care | 2017 |
| Gray Films Limited | Information & communication | 2022 |
| Gray Iris Limited | Professional & scientific | 2012 |
| Grayhawk Agricultural Ltd | Real estate | 2022 |
| Grayhawk Plant Ltd | Wholesale & retail | 2013 |
| Grayling Gate (Ringmer) Management Company Limited | Households | 2024 |
| Grays Court Hotel Ltd | Hospitality | 2019 |
| Grays Solicitors LLP | | 2017 |
| Grayson Cottages Management Limited | Households | 2008 |
| Grayson Estates Limited | Households | 2025 |
| Graystone Court (Pickering) Management Co Limited | Real estate | 2008 |
| GRC Ltd. | Professional & scientific | 2000 |
| Grease Monkey Motor Services Limited | Extraterritorial | 2017 |
| Greasebusters (York) Limited | Administrative & support | 2003 |
| Great Chief Tournaments Limited | Other services | 2019 |
| Great Potential Limited | Professional & scientific | 2003 |
| Great Rail Journeys Holdings Limited | Professional & scientific | 2005 |
| Great Rail Journeys Limited | Administrative & support | 1996 |
| Great Rail Journeys Partnership Limited | Professional & scientific | 2003 |
| Great Western Park (Didcot) NO 1 Management Company Limited | Households | 2014 |
| Great Western Park (Didcot) NO 3 Management Company Limited | Households | 2014 |
| Great Woodcote Park Exeter Management Company Limited | Households | 2016 |
| Great Yorkshire Fringe Limited | Professional & scientific | 2008 |
| Great Yorkshire Traction Engine Club Ltd | Other services | 2012 |
| Green & Morgan Ltd | Professional & scientific | 2024 |
| Green Acres Imaging Limited | Health & social care | 2018 |
| Green and Gold Sugar Ltd | Administrative & support | 2024 |
| Green ASH Renewables Ltd | Mining & quarrying | 2023 |
| Green Child Limited | Wholesale & retail | 2008 |
| Green Coffee Collective Ltd | Wholesale & retail | 2023 |
| Green Energy Generation Ltd. | Construction | 2010 |
| Green Energy Publishing Limited | Information & communication | 2010 |
| Green Engineering and Machinery Ltd | Manufacturing | 2016 |
| Green Fellow Gardeners Limited | Administrative & support | 2020 |
| Green Fields Sporting Systems Ltd | Arts & recreation | 2020 |
| Green FIG Cleaning Services Limited | Administrative & support | 2025 |
| Green Herb Capital Limited | Professional & scientific | 2023 |
| Green Home People Ltd | Construction | 2023 |
| Green Oak Developments (Yorkshire) Ltd | Construction | 2023 |
| Green Olive Utility Ltd | Energy | 2016 |
| Green Park Construction Limited | Construction | 2004 |
| Green Rose Chemistry Ltd | Professional & scientific | 2019 |
| Green Scene LMS Limited | Administrative & support | 2014 |
| Green Signal Ltd | Hospitality | 1998 |
| Green Tree (York) Limited | Hospitality | 2013 |
| Green Vector Ltd | Real estate | 2025 |
| Green Vets Services Limited | Professional & scientific | 2017 |
| Greenacre Mews (York) Management Co. Limited | Households | 1984 |
| Greenacres (Easington) Management Company Limited | Households | 2017 |
| Greenfield Park Management (York) Limited | Households | 1998 |
| Greenfields (Narberth) Management Company Limited | Real estate | 2017 |
| Greenfinch Plumbing and Heating Ltd | Construction | 2026 |
| Greenfinch Renewables Limited | Wholesale & retail | 2020 |
| Greenflay Limited | Real estate | 2005 |
| Greenfos Energy UK Ltd | Wholesale & retail | 2025 |
| Greenfuture BNG Limited | Professional & scientific | 2024 |
| Greengage Holdings Ltd | Financial services | 2020 |
| Greenhouse OS Ltd | Information & communication | 2023 |
| Greening of Streaming Limited | Professional & scientific | 2021 |
| Greenline Plumbing, Heating & Bathroom Design Limited | Construction | 2005 |
| Greeno Services Ltd | Professional & scientific | 2023 |
| Greenrow Meadows Property Ltd | Real estate | 2024 |
| Greenshoot Care Services Limited | Health & social care | 2013 |
| Greensman Limited | Water & waste | 2002 |
| Greensteam Weeding UK Ltd | Administrative & support | 2023 |
| Greenstripe Nutrition Ltd | Wholesale & retail | 2022 |
| Greenthwaite Holdings Limited | Administrative & support | 2017 |
| Greentrac Digital Limited | Information & communication | 2016 |
| Greenway Consulting Ltd | Professional & scientific | 2025 |
| Greenway Garage Limited | Wholesale & retail | 2005 |
| Greenwise Investments Limited | Wholesale & retail | 2021 |
| Greenwood (Holdings) Limited | Financial services | 2015 |