| Food Battles Ltd | Hospitality | 2024 |
| Fresh CUT Barbers NE Ltd | Other services | 2025 |
| Fuse Community Cinema CIC | Arts & recreation | 2009 |
| G&L Enterprises Ltd | Agriculture & fishing | 2025 |
| Gallowgate Property Limited | Real estate | 2016 |
| Gameplan (NE) Ltd | Education | 2010 |
| GB Builders NE Ltd | Construction | 2023 |
| GFS Consultancy Ltd | Professional & scientific | 2022 |
| Gibson Marine Electrical Ltd | Construction | 2025 |
| GIC Property Ltd | Real estate | 2019 |
| Gilesgate Autocare Ltd | Wholesale & retail | 2013 |
| Gilligan Engineering Services Limited | Professional & scientific | 2002 |
| Gilmore Estates Limited | Real estate | 2014 |
| Glen Bolton Ltd | Hospitality | 2026 |
| Global Bearings & Transmission Limited | Wholesale & retail | 1999 |
| Global Manufacturing Supplies Limited | Professional & scientific | 1998 |
| GMS (Holdings) Limited | Professional & scientific | 2013 |
| Grant's Family and Catering Butchers Ltd | Wholesale & retail | 2013 |
| Grants Event Catering Ltd | Hospitality | 2026 |
| Grants Garage Limited | Wholesale & retail | 2016 |
| Grey Area Security Ltd | Information & communication | 2018 |
| GS Skip Hire (NE) Ltd | Water & waste | 2019 |
| GTM Services (NE) Ltd | Construction | 2024 |
| Guvnor Ltd | Wholesale & retail | 2006 |
| Gwtm Ltd | Construction | 2016 |
| H J O Electro Plating Ltd | Manufacturing | 2010 |
| H&R Autoservices Ltd | Wholesale & retail | 2024 |
| Hacw Ltd | Administrative & support | 2017 |
| Hacw NE Ltd | Administrative & support | 2021 |
| Hadrian Home Improvements Ltd | Construction | 2014 |
| Halfway Convenience Store Ltd | Wholesale & retail | 2019 |
| Heritage Accountancy Limited | Professional & scientific | 2010 |
| Heritage Financial NE Ltd | Administrative & support | 2013 |
| Hevin Ltd | Hospitality | 2019 |
| Hexham and District Motor Club Limited | Arts & recreation | 2023 |
| High Hopes Day Nursery Ltd | Education | 2023 |
| Highland Roots Limited | Real estate | 2011 |
| HK Consults Ltd | Professional & scientific | 2022 |
| Home Flooring Direct Limited | Construction | 2022 |
| Homely Holiday LET Specialists Ltd | Households | 2026 |
| Homely Services Ltd | Administrative & support | 2026 |
| Horizon Products Ltd | Other services | 2009 |
| Hudson (PSV) Ltd | Professional & scientific | 2022 |
| Humbles Wood Farm Animal Activity CIC | Health & social care | 2023 |
| Identiclean Laundrette Ltd | Other services | 2024 |
| IJM Building Services Ltd | Construction | 2024 |
| Independent Restoration Limited | Water & waste | 2014 |
| Inehorn Limited | Administrative & support | 2011 |
| Inhabiter Ltd | Real estate | 2026 |
| Inside Cleaning Limited | Construction | 2020 |
| Inside Commercial Limited | Construction | 2020 |
| Inside Contracting Limited | Construction | 2017 |
| Inside Contracting Solutions Limited | Construction | 2023 |
| Inside Contracts Ltd | Construction | 2017 |
| Inside Design Limited | Construction | 2020 |
| Inside Desire Ltd | Professional & scientific | 2024 |
| Inside Landscaping Limited | Construction | 2020 |
| Integrated Maintenance Services Group Limited | Administrative & support | 2020 |
| Interior Desire Ltd | Wholesale & retail | 2008 |
| Invictus Interiors Ltd | Construction | 2023 |
| J Adams Fire Solutions Ltd | Construction | 2025 |
| J R Handyman Limited | Construction | 2013 |
| Jack Hill Properties Limited | Real estate | 2024 |
| James Armstrong Management Engineering Services Limited | Professional & scientific | 2015 |
| Jaspa Consultancy Ltd | Information & communication | 2007 |
| JBK North Limited | Real estate | 2023 |
| JF Oncology Limited | Health & social care | 2019 |
| Jift Services and Developments Ltd | Construction | 2025 |
| Jnmoore Property Ltd | Real estate | 2024 |
| JTS Management Services Ltd | Professional & scientific | 2021 |
| Julies Grocery Store Limited | Construction | 2016 |
| JWH Joinery (NE) Ltd | Construction | 2024 |
| K Dawson Ltd | Professional & scientific | 2020 |
| Kensington Properties (UK) Limited | Hospitality | 1997 |
| Kinz Barber Ltd | Other services | 2022 |
| Kitssam-It Ltd | Information & communication | 2008 |
| KJK Holliday Sign Installation Limited | Professional & scientific | 2019 |
| Knotted Kloud Ltd | Wholesale & retail | 2025 |
| KSL NE Properties Limited | Hospitality | 2024 |
| Kurio Limited | Hospitality | 2014 |
| KYE Smith Logistics Ltd | Transport & logistics | 2025 |
| L a Environmental Ltd | Professional & scientific | 2011 |
| LA Toscana Ristorante Holdings Limited | Hospitality | 1975 |
| Langcliffe Property Ltd | Real estate | 2022 |
| Ldjmagic Holdings Ltd | Extraterritorial | 2002 |
| Lifetile Technology Ltd | Manufacturing | 2022 |
| Lilium Garden Limited | Hospitality | 2020 |
| Lilium Garden Restaurant Limited | Hospitality | 2025 |
| Lime West Ltd | Real estate | 2017 |
| Linnet Property Management Ltd | Real estate | 2023 |
| LM Diagnostics Limited | Wholesale & retail | 2008 |
| Local Clean Co Limited | Administrative & support | 2026 |
| Loon WAH House Takeaway Ltd | Hospitality | 2024 |
| Lords Turkish Barber Ltd | Other services | 2023 |
| Lucky 7 Pets Ltd | Wholesale & retail | 2025 |
| Madmac Competitions Ltd | Arts & recreation | 2021 |
| Maritime Matters Ltd | Professional & scientific | 2021 |
| Mark Armstrong Ltd | Professional & scientific | 2015 |
| Mark Grant Consulting Engineer Ltd | Professional & scientific | 2024 |
| Martell Real Estate Ltd | Real estate | 2021 |