| Glazexcel Ltd | Construction | 2020 |
| Glen Saint Developments Limited | Construction | 1987 |
| Global Rally Challenge Ltd | Arts & recreation | 2022 |
| Global Rally Community Limited | Arts & recreation | 2026 |
| GM Sellers Lettings Limited | Real estate | 2025 |
| GM Sellers Medical Limited | Health & social care | 2025 |
| Gmph Ltd. | Hospitality | 2013 |
| Go Management Consulting Limited | Professional & scientific | 2020 |
| Gomedtech Limited | Professional & scientific | 2025 |
| Goodwych Limited | Hospitality | 2012 |
| Gooseconsult Ltd | Construction | 2023 |
| GPS GAS Contracting Ltd | Construction | 2018 |
| Granby Cafe Limited | Hospitality | 2022 |
| Granby Land Limited | Construction | 1987 |
| Gray Vardo Limited | Other services | 2019 |
| Great Longstone Agricultural Limited | Agriculture & fishing | 1996 |
| Great Longstone Motors Ltd | Wholesale & retail | 2021 |
| Great Residents Ltd | Arts & recreation | 2025 |
| Greata Brands Limited | Manufacturing | 2006 |
| Gridfix Ceilings & Linings Limited | | 1976 |
| Grit Inc Ltd | Arts & recreation | 2017 |
| Gunn JCB (Holdings) Limited | Wholesale & retail | 2000 |
| Gunn JCB Group Limited | Wholesale & retail | 2014 |
| Gunn JCB Limited | Wholesale & retail | 1954 |
| Guymbrown Ltd. | Manufacturing | 2017 |
| Gwent Hydraulics Limited | Manufacturing | 1995 |
| H2 Construct Limited | Construction | 2026 |
| HA Euinton Limited | Health & social care | 2015 |
| Haddon Property Developments Limited | Real estate | 1992 |
| Haka (Bakewell) Ltd | Real estate | 2022 |
| Hale Group Properties Ltd | Real estate | 2024 |
| Hargoose Beauly Ltd | Agriculture & fishing | 2025 |
| Harlequin Project Management Limited | Professional & scientific | 2014 |
| Harmony Care and Support Limited | Health & social care | 2009 |
| Harry Duthie Ltd | Education | 2019 |
| Hartingtons Ltd | Hospitality | 2010 |
| Harvey Maxwell Business Management Ltd | Information & communication | 2016 |
| Hassop Hall Hotel Limited. | Hospitality | 1971 |
| Hassop Station Cater Limited | Hospitality | 2014 |
| Hassop Station Limited | Hospitality | 2010 |
| Hataitai Limited | Other services | 2023 |
| Hattersley Wines Limited | Wholesale & retail | 2009 |
| Haus of Ästhetik Ltd. | Health & social care | 2025 |
| Haygam Limited | Professional & scientific | 1969 |
| Haystay Holdings Limited | Financial services | 2024 |
| Haystay Limited | Hospitality | 2017 |
| Hemera HR Ltd | Administrative & support | 2025 |
| Henslowe Limited | Financial services | 2014 |
| Hesdev Limited | Hospitality | 2004 |
| HEY Traffic Ltd | Administrative & support | 2023 |
| High Ridge Media Ltd | Professional & scientific | 2025 |
| Hipper Chesterfield Limited | Other services | 2025 |
| HLW Homes Ltd | Real estate | 2022 |
| Hobhurst Ltd. | Professional & scientific | 2002 |
| Holdsworth Chocolate Limited | Manufacturing | 2000 |
| Holly Trees Finance Limited | Professional & scientific | 2024 |
| Holly Trees Management Limited | Financial services | 2023 |
| Holme Court Management Limited | Real estate | 1998 |
| Holme Court Properties Ltd | Real estate | 2010 |
| Hopkinsons Landscapes Ltd | Administrative & support | 2026 |
| Hopwood Homes Limited | Construction | 2014 |
| Hotelres Ltd | Administrative & support | 1998 |
| Hotham Enterprises Limited | Real estate | 2024 |
| Hoyes-Scott Limited | Information & communication | 1982 |
| Hrrd Ltd | Financial services | 2019 |
| Huber UK Temperature Control Ltd | Wholesale & retail | 2017 |
| Huntrod Property Ltd | Real estate | 2018 |
| Hunts Motor (Hire) Co Limited(The) | Professional & scientific | 1970 |
| Hunts Motor Company Limited (the) | Professional & scientific | 1973 |
| Hutchinson IP Consulting Limited | Professional & scientific | 2013 |
| Hygge Huts Ltd | Manufacturing | 2023 |
| Iconic Event Management Limited | Extraterritorial | 2015 |
| Idce Ltd | Professional & scientific | 2009 |
| IK Holiday Homes Limited | Hospitality | 2020 |
| Import Export Brokers Limited | Financial services | 2013 |
| Inn Control Management Services Ltd | Hospitality | 2003 |
| Inn Ideas Ltd | Hospitality | 2012 |
| Inside the Box Consultancy Limited | Wholesale & retail | 2021 |
| International Mobile Stadiums Limited | Administrative & support | 2026 |
| Irelrop Investments Limited | Financial services | 1969 |
| ISL Networks Limited | Information & communication | 2014 |
| Ithica Bar and Restaurant Limited | Hospitality | 2014 |
| J & a Roadsweeping Limited | Other services | 2004 |
| J & C Edgington Ltd | Real estate | 2025 |
| J & C Upton Developments Ltd | Construction | 2014 |
| J D Purseglove Engineering Limited | Professional & scientific | 2017 |
| J H Riley Associates Ltd | Professional & scientific | 2003 |
| J Hague Garden Services Limited | Administrative & support | 2021 |
| J M J Oldfield Design Limited | Professional & scientific | 1987 |
| J Morgans Finance Limited | Professional & scientific | 2023 |
| J-Vision Media Limited | Other services | 2024 |
| Jack Teague Limited | Other services | 2019 |
| Jake Drinkwater Ltd | Construction | 2021 |
| Jasmine Lodge Northumberland Ltd | Real estate | 2022 |
| JDH Property Ltd | Construction | 2016 |
| Jenny Lynn Ltd | Information & communication | 2023 |
| JF Ecoworks Consultancy Ltd | Professional & scientific | 2025 |
| Jfco Limited | Hospitality | 2020 |
| JHB (Bakewell) Limited | Real estate | 2019 |
| JHR Developments (UK) Limited | Arts & recreation | 2011 |