| Gudpull Limited | Construction | 2018 |
| Guildford Tech Ltd | Construction | 2022 |
| Guisborough Milk Limited | Wholesale & retail | 2021 |
| Gulan 15 Ltd | Hospitality | 2025 |
| Guli Chinese Ltd | Hospitality | 2024 |
| Guli Ltd | Hospitality | 2018 |
| Gunnergate Limited | Water & waste | 2012 |
| Guru HK Ltd | Wholesale & retail | 2023 |
| Gustul DE Acasa Boro Ltd | Wholesale & retail | 2026 |
| Gustul DE Acasa Romanian Food Ltd | Wholesale & retail | 2024 |
| Gutter Rainwater Advisory Supply Service Ltd | Construction | 2010 |
| Guvners Taxis Ltd | Transport & logistics | 2025 |
| GUY Claude Ltd | Other services | 2022 |
| Gvkz Limited | Construction | 2025 |
| GW Document Management Limited | Administrative & support | 2012 |
| GW Electrical Services NE Ltd | Manufacturing | 2017 |
| GWL Vehicle Movements Ltd | Transport & logistics | 2022 |
| Gymcamel Ltd | Wholesale & retail | 2019 |
| Gymflex Ltd | Wholesale & retail | 2018 |
| Gyroscope International Limited | Administrative & support | 2021 |
| H & a Properties Teesside Limited | Real estate | 2022 |
| H & B Homes Ltd | Extraterritorial | 2024 |
| H & C Fabrications Limited | Manufacturing | 2023 |
| H & K Ventures Ltd | Hospitality | 2015 |
| H & N Khalifa Ltd | Wholesale & retail | 2025 |
| H & R East Ltd | Real estate | 2022 |
| H & S Management Consultants Limited | Professional & scientific | 2014 |
| H Company Commercial Ltd | Real estate | 2018 |
| H Company Residential Ltd | Real estate | 2019 |
| H H Shop Limited | Wholesale & retail | 2023 |
| H J Commerce (North-East) Limited | Wholesale & retail | 2022 |
| H&A Travel Ltd | Administrative & support | 2020 |
| H&F Autos Limited | Wholesale & retail | 2025 |
| H&M Builders Ltd | Construction | 2025 |
| H&N Travels NE Ltd | Transport & logistics | 2026 |
| H&P Hospitality Ltd | Hospitality | 2026 |
| H&W Stores UK Ltd | Wholesale & retail | 2025 |
| H.J.L. Developments Ltd | Real estate | 2017 |
| H1 Plumbing and Heating Ltd | Construction | 2021 |
| H20 Proof Roofing Ltd | Construction | 2020 |
| H21CVE Limited | Construction | 2024 |
| H2O MUD and Snow Ltd | Education | 2024 |
| H3BOX Limited | Wholesale & retail | 2008 |
| HA Installations 22 Limited | Construction | 2001 |
| Habeshaadulis Limited | Wholesale & retail | 2025 |
| Habeshaselam Limited | Hospitality | 2025 |
| Habibat Ltd | Manufacturing | 2015 |
| Habz Barbers Ltd | Other services | 2026 |
| Haddon Engineering Limited | Professional & scientific | 2014 |
| Hagi Dobrogeanu Logistics Limited | Transport & logistics | 2026 |
| Haight Ashbury Ltd | Professional & scientific | 2022 |
| Haines Temporary Works Ltd | Professional & scientific | 2026 |
| Hair Academy 2 Ltd | Other services | 2018 |
| Hair Unique (Teesside) Ltd | Other services | 2020 |
| Hair Unique by Jenna Limited | Other services | 2024 |
| Hairworx (North East) Limited | Other services | 2004 |
| HAJ Pro Ltd | Hospitality | 2025 |
| HAK EPG Ltd | Construction | 2022 |
| HAK Property Lets Ltd | Real estate | 2024 |
| Hakar Barbers Ltd | Other services | 2025 |
| Halcyon Financial Solutions Limited | Professional & scientific | 2007 |
| Halhumdan Ltd | Real estate | 2012 |
| Hall Aspects Roofing Limited | Construction | 2014 |
| Hall Safety Aspects Ltd | Professional & scientific | 2023 |
| Hall Tree Motors Ltd | Wholesale & retail | 2021 |
| Hallieb.Co Limited | Wholesale & retail | 2024 |
| Hallsafe Consulting Ltd | Professional & scientific | 2025 |
| Halmarr Ltd | Information & communication | 2025 |
| Halo by J&T Limited | Other services | 2018 |
| Hama Cleaning Services M Ltd | Administrative & support | 2025 |
| Hama Tasty Ltd | Hospitality | 2019 |
| Hamad Ltd | Other services | 2022 |
| Hamawandi NE Ltd | Wholesale & retail | 2022 |
| Hambleton Hill Ltd | Wholesale & retail | 2021 |
| Hambleton Investments Limited | Real estate | 2012 |
| Hamilton Beauty Ltd | Other services | 2017 |
| Hamilton OFF Shore Ltd | Information & communication | 2026 |
| Hamilton Redican Properties Ltd | Construction | 2019 |
| Hamiltons Site Services Ltd | Information & communication | 2016 |
| Haml Consulting Limited | Professional & scientific | 2016 |
| Hamlynn Creative Limited | Professional & scientific | 2017 |
| Hampton Rose Property Developments Ltd | Construction | 2018 |
| Hamxa Shinwari Limited | Education | 2023 |
| Hamza's Tawa House Ltd | Hospitality | 2019 |
| Hamzas/Desi Curry Junction Limited | Hospitality | 2025 |
| Hamzatech Ltd | Wholesale & retail | 2025 |
| Hana Foods (NE) Limited | Hospitality | 2020 |
| Hand 2 Hold Limited | Other services | 2016 |
| Handiwala Ltd | Hospitality | 2019 |
| Handmade With Love, by Natz X Ltd | Wholesale & retail | 2026 |
| Handy Carwash Ltd | Administrative & support | 2025 |
| Hane Mini Market Limited | Wholesale & retail | 2023 |
| Hanley Motor Body Repairs Ltd. | Wholesale & retail | 2003 |
| Hanna(Uk) Ltd | Wholesale & retail | 2025 |
| Hannabanna Clothing Ltd | Wholesale & retail | 2025 |
| Hannora Ltd | Administrative & support | 2020 |
| Hans Clothing Ltd | Wholesale & retail | 2024 |
| Hanzalah Wholesale Limited | Wholesale & retail | 2025 |
| Hanzeee Ltd | Wholesale & retail | 2025 |
| Happily Ever After-Parties NE Ltd | Professional & scientific | 2026 |