| Funky Griller Ltd | Hospitality | 2024 |
| Furnique Limited | Administrative & support | 2016 |
| Furniture Clinic North East Ltd | Other services | 2008 |
| G Railton Groundworks and Civils Ltd | Construction | 2018 |
| G&P Johnson Limited | Transport & logistics | 2007 |
| G.B.S. Hammer Ltd | Construction | 2016 |
| G.B.U. Hire Ltd | Other services | 2013 |
| Gaba & Sons PVT Ltd | Wholesale & retail | 2018 |
| Gaba Properties and Management Ltd | Real estate | 2022 |
| Gabor Solution Ltd | Construction | 2024 |
| Gary Tyzack Audiology Limited | Health & social care | 2014 |
| Gatecote 1 Limited | Construction | 2025 |
| GB Kaima Ltd | Wholesale & retail | 2020 |
| GB Repoint Limited | Construction | 2025 |
| GB Services (N.E) Ltd | Construction | 2008 |
| Gbify Ltd | Wholesale & retail | 2025 |
| Gbrnortheast Ltd | Construction | 2026 |
| GBS NE Ltd | Construction | 2025 |
| GC Beauty and Aesthetics Limited | Other services | 2024 |
| Gemini Digital Limited | Information & communication | 2018 |
| Gemp Ltd | Transport & logistics | 2025 |
| General Garage Limited | Wholesale & retail | 2025 |
| Genetic Supps Limited | Wholesale & retail | 2023 |
| Genisys Technology Solutions Limited | Information & communication | 2018 |
| George Edington Plumbing & Heating Limited | Construction | 2007 |
| George J Roberts ENG Ltd | Professional & scientific | 2023 |
| GET Fit NE CIC | Arts & recreation | 2024 |
| Gilmour Tooling Limited | Extraterritorial | 2024 |
| Glazing Films and Blinds Limited | Construction | 2004 |
| Glencoe Hold Co Limited | Financial services | 2023 |
| Glendinning Football Consultancy Ltd | Professional & scientific | 2024 |
| Glendo Entertainment Ltd | Arts & recreation | 2019 |
| Glendo Leisure Ltd | Real estate | 2025 |
| Global Noble Goods Ltd | Wholesale & retail | 2025 |
| Global Turbine Blading Ltd | Professional & scientific | 2023 |
| Gloucester Landmark Limited | Real estate | 2024 |
| Glow UK Beauty Therapy Ltd | Other services | 2020 |
| Go to Leisure Group Ltd | Education | 2013 |
| Gogo Gain Property Holding Limited | Real estate | 2020 |
| Gold Star Veterinary Clinic Ltd | Professional & scientific | 2020 |
| Goldmost RS Limited | Construction | 2025 |
| Grab & Deliver Limited | Construction | 2006 |
| Grabitdrinks Ltd | Manufacturing | 2024 |
| Graceful World Properties Limited | Real estate | 2025 |
| Graham Burridge Roofing Ltd | Construction | 2023 |
| Grangecroft Ltd | Other services | 2019 |
| Grateful 88 Limited | Real estate | 2023 |
| Great Mountain Properties Company Limited | Real estate | 2020 |
| Great North Gardens Limited | Administrative & support | 2025 |
| Great North Stays Ltd | Hospitality | 2022 |
| Green Blaydon Limited | Hospitality | 2024 |
| Green HOWARDS1965 Limited | Extraterritorial | 2015 |
| Green Pride Holdings UK Limited | Financial services | 2025 |
| Green Sparks Electrics Limited | Construction | 2024 |
| Greencroft Dog Daycare Limited | Agriculture & fishing | 2020 |
| Greenfield Property Investment Ltd | Real estate | 2018 |
| Greenscape Landscaping Limited | Administrative & support | 2018 |
| Greenshot Partnership Limited | Construction | 2025 |
| Greyvale Holdings Ltd | Financial services | 2025 |
| Gunpla Pinky Ltd | Real estate | 2020 |
| GW Groundworks (North East) Ltd | Construction | 2023 |
| Gym Tech North East Limited | Administrative & support | 2012 |
| H & J Brown Limited | Wholesale & retail | 2011 |
| H&H Land Ltd | Construction | 2021 |
| Hadrian House Limited | Administrative & support | 2023 |
| Hajiawa Barber 1 Ltd | Other services | 2025 |
| Haldane Homes and Developments Ltd | Real estate | 2021 |
| Halls Equestrian Limited | Administrative & support | 2022 |
| Hamilton Legacy Limited | Professional & scientific | 2021 |
| Hand Dryer Deals Limited | Administrative & support | 2010 |
| Hands in Limited | Information & communication | 2020 |
| Happy Key Co. Ltd | Real estate | 2021 |
| Harcourt Beverages Limited | Hospitality | 2022 |
| Harlands Wealth Management Limited | Financial services | 2012 |
| Harperley Coffee Shop Limited | Hospitality | 2018 |
| Harperley Consulting Ltd | Professional & scientific | 2025 |
| Harperley Estates Ltd | Extraterritorial | 2013 |
| Harperley Nursery and Gifts Limited | Wholesale & retail | 2022 |
| Harris Training Solutions (NE) Ltd | Professional & scientific | 2024 |
| Hart Jetting Ltd | Manufacturing | 2025 |
| Harvest 28 Ltd | Professional & scientific | 2025 |
| Have IT Direct Ltd | Professional & scientific | 2014 |
| Hayh Ltd | Wholesale & retail | 2019 |
| HBH Machinery Ltd | Wholesale & retail | 2019 |
| HC Investors Limited | Construction | 2026 |
| Hckm Limited | Real estate | 2023 |
| Headway County Durham | Other services | 2013 |
| Healife Investment Holdings Limited | Real estate | 2021 |
| Heirloom Handicrafts Limited | Manufacturing | 2023 |
| Henderson Hire Ltd | Transport & logistics | 2022 |
| Henry M&E Services Ltd | Construction | 2024 |
| Heritage & Contemporary Joinery Limited | Manufacturing | 2018 |
| Heritage Homes and Land Limited | Real estate | 2025 |
| Hestia North East Limited | Wholesale & retail | 2013 |
| Hhris Ltd | Administrative & support | 2026 |
| Hiatco Limited | Manufacturing | 1992 |
| Hill Valley Creative Limited | Information & communication | 2011 |
| HJS & SON Holdings Ltd | Financial services | 2021 |
| Hndl (UK) Limited | Transport & logistics | 2022 |
| Hodgson Sayers Limited | Construction | 1992 |