| Future Fit Performance Limited | Health & social care | 2017 |
| G Bedford Consultancy Services Limited | Health & social care | 2013 |
| Galozee Ltd | Real estate | 2025 |
| Garden Feathers Limited | Wholesale & retail | 2012 |
| Getinge UK Limited | Manufacturing | 1983 |
| Glenwharrie Ltd | Professional & scientific | 2021 |
| Golden Fades Ltd | Other services | 2025 |
| Graffi TY Art Ltd | Arts & recreation | 2024 |
| Grange and Grandeur Limited | Real estate | 2026 |
| Greaves Swim School Ltd | Education | 2026 |
| GTE Assessment Ltd | Professional & scientific | 2022 |
| Hanson Investment & Finance Ltd | Financial services | 2019 |
| Harding Bespoke Services Ltd | Construction | 2016 |
| Hawkstone Recruitment Limited | Administrative & support | 2023 |
| Haydon View Care Home Limited | Real estate | 2022 |
| Hepscott Care Home Limited | Health & social care | 2022 |
| Hope Crafts UK Ltd | Construction | 2014 |
| Hylton Properties Limited | Construction | 2024 |
| ILM Associates Ltd | Education | 2019 |
| Image Bearers Ltd | Wholesale & retail | 2026 |
| Immunodiagnostic Systems Holdings Limited | Health & social care | 2004 |
| IN at the Deep END Limited | Education | 2008 |
| IN at the Deep END People CIC | Education | 2023 |
| In-Justice Advocacy CIC | Health & social care | 2025 |
| Infamous Enterprises Limited | Wholesale & retail | 2024 |
| Infinity Electrical (NE) Limited | Construction | 2025 |
| Inspired Care Limited | Health & social care | 2012 |
| Integrity Technology Services NE Ltd | Information & communication | 2010 |
| International Academy of Sport Limited | Arts & recreation | 2023 |
| Irwin-Rhodes Medical Services Limited | Health & social care | 2023 |
| Itrinity Consultancy Limited | Information & communication | 2014 |
| J Humphrey & Partners Limited | Professional & scientific | 2010 |
| J Humphrey & Partners Trustee Limited | Professional & scientific | 2023 |
| J Humphrey (Holdings) Ltd | Financial services | 2015 |
| J R Heat Trace Limited | Professional & scientific | 2017 |
| J S and C Properties Limited | Real estate | 2025 |
| J&L Electrical Maintenance Ltd | Manufacturing | 2025 |
| JA Lettings Ltd | Real estate | 2018 |
| Jackson Sayer Limited | Financial services | 2018 |
| Jake Thomas Ltd | Health & social care | 2026 |
| Jason Savage Financial Planning Limited | Professional & scientific | 2020 |
| JBM Horticulture Limited | Wholesale & retail | 2023 |
| JBM Retail Limited | Wholesale & retail | 2024 |
| JC Renewables Ltd | Professional & scientific | 2024 |
| JC Subsea Ltd | Professional & scientific | 2018 |
| Jhulelal Ltd | Hospitality | 2026 |
| Jill Furey Limited | Health & social care | 2026 |
| Jj's Deli NE Ltd | Hospitality | 2023 |
| Jmask Limited | Professional & scientific | 2025 |
| JN Techs Ltd | Professional & scientific | 2026 |
| JNT Plumbing Limited | Construction | 2016 |
| Josie Tuckwell Limited | Health & social care | 2019 |
| Jowen Consultants Ltd | Construction | 2023 |
| JVL Access and Lifting Solutions Limited | Construction | 2025 |
| Kadiu Lettings Limited | Real estate | 2025 |
| Kala Properties Ltd | Real estate | 2023 |
| Kan's Group Ltd | Hospitality | 2016 |
| Karls Golden FRY Ltd | Hospitality | 2026 |
| KAW Operations Ltd | Construction | 2024 |
| KAY Care Services Group Limited | Financial services | 2016 |
| KAY Care Services Ltd | Health & social care | 1996 |
| Kindly Mobile Ltd | Wholesale & retail | 2025 |
| Kiwi Housing C.I.C. | Real estate | 2026 |
| KJ Technical Ltd | Professional & scientific | 2026 |
| KJR Coding Limited | Health & social care | 2022 |
| Laidler Pipefitting Services Ltd | Manufacturing | 2015 |
| Lardel Ltd | Wholesale & retail | 2025 |
| LC Electrical Services NE Ltd | Construction | 2020 |
| Lean SIX Sigma Training Ltd | Professional & scientific | 2014 |
| Lg-Mot Limited | Wholesale & retail | 2017 |
| Lhsm Consultancy Ltd | Professional & scientific | 2019 |
| Lottie Investments Ltd | Real estate | 2022 |
| M & S Prestige Sales Limited | Wholesale & retail | 2011 |
| M & S Prestige Vehicle Sales Limited | Wholesale & retail | 2010 |
| M K Birch Ltd | Real estate | 2010 |
| M O H Groundworks Services Limited | Construction | 2018 |
| Macclawd Limited | Professional & scientific | 2018 |
| Mace Referrals Ltd | Professional & scientific | 2021 |
| Marinewolf Ltd | Wholesale & retail | 2020 |
| Mark Robinson Plumbing and Heating Services Ltd | Construction | 2014 |
| MAX Customs Limited | Professional & scientific | 2024 |
| MCG HV & CX Service Ltd | Other services | 2023 |
| Mcmeiken Harris Ltd | Other services | 2017 |
| Mews PMC Ltd | Other services | 2018 |
| Miller Rail (NE) Ltd | Construction | 2018 |
| Minhoco 28 Limited | Financial services | 2015 |
| Mjat Management Limited | Wholesale & retail | 2012 |
| Mollwin Investments Limited | Real estate | 2016 |
| Mono Beauty Limited | Other services | 2023 |
| Mono Hair Design Limited | Other services | 2021 |
| Monty Dog Inc Ltd | Health & social care | 2021 |
| MSK65 Clothing Ltd | Wholesale & retail | 2024 |
| MX Investment Ally Ltd | Real estate | 2022 |
| Mychaa Limited | Wholesale & retail | 2026 |
| N. E. Reclamation Supplies Limited | Water & waste | 2012 |
| NDA Services NE Ltd | Construction | 2024 |
| Neaf Fortune Limited | Hospitality | 2025 |
| Networkomega Ltd | Construction | 2025 |
| Newcastle Hernia and Gallstone Clinic Limited | Health & social care | 2022 |
| NJA Flooring North East Ltd | Construction | 2022 |