| Future IT Business Solutions Ltd | Wholesale & retail | 2022 |
| Future Recycled IT Ltd | Wholesale & retail | 2022 |
| FWX Recycling Limited | Water & waste | 2016 |
| G a Valves Limited | Households | 2013 |
| G Turner Developments Ltd | Other services | 2026 |
| G Turner Holdings Ltd | Other services | 2024 |
| G&M Tasty Trading Ltd | Wholesale & retail | 2019 |
| G.A. Valves Sales Limited | Manufacturing | 1990 |
| G.E. Mitchell (Electrical) Limited | Manufacturing | 1973 |
| G.E. Mitchell Holdings Limited | Professional & scientific | 2011 |
| G.E.B Business Advisory Limited | Administrative & support | 2018 |
| Gama Information Technology Limited | Information & communication | 2003 |
| Garden Street Publishing Limited | Information & communication | 2007 |
| Garioch Properties Limited | Real estate | 2020 |
| Garment Labels Ltd | Manufacturing | 2015 |
| Gdcr Holdings Ltd | Real estate | 2025 |
| GE Private Tuition and Children’S Services Ltd | Education | 2022 |
| Gemini Hotels Ltd | Hospitality | 2005 |
| George Dyson Fabrication & Welding Ltd | Manufacturing | 2026 |
| Geraghty Holdings Limited | Real estate | 2023 |
| GET IT Digital Limited | Information & communication | 2017 |
| GET SET Training Limited | Arts & recreation | 2007 |
| Ghazni Limited | Wholesale & retail | 2019 |
| Gibson's Chimney Sweeps Limited | Administrative & support | 2014 |
| Giles Accounting and Administrative Services Limited | Professional & scientific | 2019 |
| Giswood Construction Ltd | Construction | 2025 |
| GK Stays Limited | Real estate | 2025 |
| GL Interim Limited | Professional & scientific | 2008 |
| Glamours Beauty Spa Ltd | Other services | 2024 |
| Glen Eldon Flat Management Company Limited | Households | 2024 |
| GLO and Grind Ltd | Hospitality | 2026 |
| GMD Engineering Ltd | Manufacturing | 2012 |
| Go Save Car Hire Ltd | Administrative & support | 2025 |
| Gold Rabbit Ltd | Professional & scientific | 2018 |
| Golden Anderson Group Limited | Financial services | 2018 |
| Golden Anderson UK Limited | Manufacturing | 1989 |
| Golden Cartel Ltd | Manufacturing | 2026 |
| Good Karma Coffee House Ltd | Manufacturing | 2020 |
| Gordon Feather Ltd | Professional & scientific | 2014 |
| GR Steel Ltd | Wholesale & retail | 2020 |
| Gradegable Limited | Arts & recreation | 1984 |
| Graeme Henderson Properties Limited | Real estate | 2017 |
| Grassroots Sports Funding Ltd | Professional & scientific | 2025 |
| Gravity PR Limited | Extraterritorial | 2019 |
| GRD Precision Limited | Manufacturing | 2003 |
| Green Fingers Garden Services Limited | Administrative & support | 2003 |
| Green Yorkshire Renewables Heating & Plumbing Limited | Construction | 2024 |
| Green-Cap Business Solutions Limited | Financial services | 2020 |
| Greybeard Corporate Solutions Limited | Administrative & support | 2017 |
| Gripsockz Ltd | Manufacturing | 2022 |
| Grit Pictures Ltd | Information & communication | 2019 |
| Gronwind Ltd | Administrative & support | 2017 |
| Guvna Properties Ltd | Real estate | 2024 |
| GW Animal Feeds Ltd | Wholesale & retail | 2026 |
| GW Restaurant Ltd | Hospitality | 2018 |
| GWA Electrical Services Ltd | Construction | 2021 |
| Gweco 493 Limited | Real estate | 2010 |
| Gweco 510 Limited | Real estate | 2011 |
| H & C Whitehead (Holdings) Limited | Financial services | 2005 |
| H&C Whitehead Property Holdings Ltd | Financial services | 2025 |
| H&I Group Holdings Ltd | Financial services | 2017 |
| H&S Horticulture Ltd | Other services | 2025 |
| H. & C. Whitehead Limited | Manufacturing | 1939 |
| H2O Installs Ltd | Construction | 2025 |
| Hadham Property Limited | Real estate | 2011 |
| Hadham Real Estate Ltd | Real estate | 2024 |
| Haigh Mcgregor Ltd | Financial services | 2026 |
| Halcyon Tankers Group Limited | Financial services | 2024 |
| Halcyon Tankers Limited | Transport & logistics | 2018 |
| Halcyon Workshops Limited | Manufacturing | 2022 |
| Haley Studios Limited | Administrative & support | 2003 |
| Halifax Electrical Limited | Construction | 2003 |
| Halifax Rack & Screw Cutting Co. Limited | Manufacturing | 2004 |
| Halifax Young Singers Limited | Arts & recreation | 2001 |
| Hall & Allison Ltd | Real estate | 2020 |
| Hall & Family Ltd | Wholesale & retail | 2007 |
| Hall and Rhodes Holdings Ltd | Construction | 2023 |
| Hall and Rhodes Security Limited | Construction | 1973 |
| Halo Flooring Limited | Construction | 2026 |
| Hammerstones Limited | Construction | 1990 |
| Handley Builders Group Ltd | Construction | 2023 |
| Hannah Adams Recruitment Limited | Administrative & support | 2019 |
| Hannah Maidenhead Limited | Hospitality | 2020 |
| Hannah Wimbledon Limited | Real estate | 2021 |
| Hannay Properties Ltd | Real estate | 2024 |
| Happiness Millionaire Ltd | Professional & scientific | 2011 |
| Happy Eating Huddersfield Ltd | Hospitality | 2024 |
| Harlem New Malden Limited | Extraterritorial | 2022 |
| Harpers Cafe and Bar Ltd | Manufacturing | 2025 |
| Harrington Law Ltd | Professional & scientific | 2018 |
| Harris Blake Properties Limited | Real estate | 2020 |
| Hart Electrotec Ltd | Construction | 2020 |
| Harvey's Diner Ltd | Hospitality | 2023 |
| Hashmanis Holdings Ltd | Financial services | 2025 |
| Hashmanis Ltd | Health & social care | 2023 |
| Hastings O'Loughlin Financial Services Limited | Financial services | 2002 |
| Hastobemine Ltd | Wholesale & retail | 2017 |
| Hawley Building Services Ltd | Construction | 2016 |
| Hawley Business Solutions Limited | Professional & scientific | 2010 |
| HC Media Ventures Ltd | Other services | 2021 |