| GF Consett Limited | Hospitality | 2018 |
| GF Roofing (North East) Limited | Construction | 2024 |
| Ghbd Ltd | Professional & scientific | 2019 |
| Gibbs Construction NE Ltd | Construction | 2019 |
| Ginger Flipper Ltd | Wholesale & retail | 2024 |
| Ginger Group Holdings Ltd | Real estate | 2024 |
| Giri Training and Consultancy Limited | Professional & scientific | 2019 |
| Glencoe Development NE Ltd | Real estate | 2021 |
| Glenn Connelly Haulage Limited | Transport & logistics | 2005 |
| Glenroyd House Community Hub Ltd | Administrative & support | 2014 |
| GLM Property Investments Ltd | Real estate | 2026 |
| Global DEC Ltd | Administrative & support | 2016 |
| Global Eco Investments Ltd | Financial services | 2022 |
| Glow UP Painting Services Ltd | Construction | 2020 |
| GLS Tech Limited | Information & communication | 2025 |
| GMD Plumbing & Heating Specialists Ltd | Construction | 2025 |
| GP Trucks UK Ltd | Wholesale & retail | 2023 |
| Gradwood Bidco Limited | Financial services | 2024 |
| Grand Designs North East Ltd | Professional & scientific | 2024 |
| Grange Commercial Limited | Construction | 2003 |
| Granny B'S Limited | Hospitality | 2012 |
| Grassmere North East Ltd | Hospitality | 2026 |
| Gratley Investments Limited | Information & communication | 2025 |
| Green Kirk Ltd | Hospitality | 2024 |
| Green Roofing Solutions Limited | Construction | 2025 |
| Greenfox TM Ltd | Construction | 2018 |
| Greenhurst Family Ltd | Hospitality | 2025 |
| Greenwind Tech & Crew Support Limited | Manufacturing | 2015 |
| Greenwood Johnson Limited | Hospitality | 2013 |
| Greyson Holdings Limited | Health & social care | 2026 |
| Gridgraze Ltd | Administrative & support | 2025 |
| Grooby UK Limited | Information & communication | 2007 |
| Groovy Inks Ltd | Manufacturing | 2024 |
| Grove Garage Limited | Wholesale & retail | 2011 |
| Grove Groundworks Limited | Construction | 2017 |
| Growth Accounting Limited | Professional & scientific | 2025 |
| Growthset Ltd | Information & communication | 2025 |
| Grzebyk Ltd | Transport & logistics | 2025 |
| GSS Access Ltd | Construction | 2012 |
| H P Event Catering Ltd | Hospitality | 2020 |
| H R Properties NE Ltd | Real estate | 2025 |
| H.S.T.A.R (North East) Limited | Construction | 2015 |
| Haamel Limited | Real estate | 2022 |
| Hadrian Offshore Ltd | Professional & scientific | 2023 |
| Hair by Paddymac Limited | Other services | 2020 |
| Hair by Peter N E Limited | Other services | 2013 |
| Hamsterley Convenience Store Ltd | Wholesale & retail | 2025 |
| Handmade by Adam Howarth Ltd | Manufacturing | 2019 |
| Harmony Day Services Limited | Health & social care | 2026 |
| Harrington Brown Property Ltd | Real estate | 2020 |
| Harris Windows and Doors Ltd | Construction | 2019 |
| Harry Hawke Leisure Ltd | Hospitality | 2019 |
| Harry Parker & Co Limited | Wholesale & retail | 2025 |
| Hawk Construction (North East) Limited | Construction | 2014 |
| Hayley NE Ltd | Hospitality | 2023 |
| Haystax Holiday Lodges Limited | Hospitality | 2021 |
| Haystax Hub CIC | Education | 2022 |
| Hazh Pizza Ltd | Hospitality | 2025 |
| HC Strategic Land Holdings Limited | Other services | 2020 |
| Head to TOE Aesthetics Limited | Health & social care | 2020 |
| Healthy Venders Ltd | Hospitality | 2025 |
| Hebden Logistics Ltd | Information & communication | 2017 |
| Heliers Marketing Ltd | Information & communication | 2017 |
| Helios Mechanical and Process Delivery Limited | Manufacturing | 2023 |
| Helixmed Ltd | Health & social care | 2023 |
| Hello Friday Operational Management & Consulting Limited | Administrative & support | 2022 |
| Hello Munki Ltd | Arts & recreation | 2013 |
| Help to Home Limited | Construction | 2026 |
| Henley Gardens Garage Ltd | Wholesale & retail | 2020 |
| Herbert Chorley Limited | Real estate | 2014 |
| Heritage Housekeeping Ltd | Administrative & support | 2018 |
| Hexham Kitchens, Bedrooms and Bathrooms Limited | Construction | 2011 |
| HIA Rigging Ltd | Information & communication | 2011 |
| Highfive Management Limited | Administrative & support | 2016 |
| Hill Safety Consultancy Limited | Professional & scientific | 2018 |
| HJK Property Group Ltd | Real estate | 2020 |
| HLC Electrical Limited | Construction | 2026 |
| Hobgreen Country Home Ltd | Health & social care | 2016 |
| Holdsworth Technicians Limited | Wholesale & retail | 2008 |
| Hollingsworth NE Ltd | Health & social care | 2021 |
| Holyome Holdings Limited | Financial services | 2025 |
| Horden Cars & Commercials Ltd | Wholesale & retail | 2023 |
| Hospitality Collective Group Limited | Professional & scientific | 2025 |
| Hot & Cold Rolls (NE) Ltd | Hospitality | 2015 |
| Hotway Food 143 Ltd | Hospitality | 2021 |
| Hotway Indian Pizza & Kebab Limited | Hospitality | 2024 |
| House Heaters Ltd | Information & communication | 2026 |
| House of Bling Xtra Ltd | Wholesale & retail | 2021 |
| House of Botanics Ltd | Wholesale & retail | 2018 |
| Howatson Performance Limited | Professional & scientific | 2023 |
| Howling Coyote Ltd | Other services | 2019 |
| HP Electrical Services Ltd | Construction | 2016 |
| HPS Boutique Ltd. | Wholesale & retail | 2024 |
| HT Properties North East Ltd | Real estate | 2023 |
| HTD Properties Ltd | Real estate | 2024 |
| HTL (NE) Limited | Professional & scientific | 2019 |
| Hubsta Limited | Information & communication | 2018 |
| Hudson & Rogers Financial Planning Ltd | Financial services | 2021 |
| Hugh Jennings Limited | Manufacturing | 1963 |
| Husband and Brown Ltd | Other services | 2008 |