| Forest Master Ltd | Wholesale & retail | 2010 |
| Forest Trading Limited | Wholesale & retail | 2022 |
| Forget ME Knot Tattoo & Piercing Ltd | Other services | 2025 |
| Formicity Limited | Professional & scientific | 2025 |
| Formicity Property Limited | Real estate | 2019 |
| Forresters North East Ltd | Manufacturing | 2024 |
| Forster Enterprises Limited | Hospitality | 2005 |
| Forster James Hairdressing Limited | Health & social care | 2002 |
| Fourways NE Limited | Hospitality | 2017 |
| Foxhunters Properties Limited | Real estate | 2016 |
| FP Mailing (Northern England) Ltd | Administrative & support | 2016 |
| Frasers Specialist Services Ltd | Professional & scientific | 2021 |
| Frat House Tattoo Ltd | Other services | 2026 |
| FRB Contracting Services Ltd | Administrative & support | 2024 |
| Freight and Storage Limited | Transport & logistics | 2018 |
| Frennie Electrical Services Limited | Construction | 2014 |
| Fresh and Local Online Limited | Wholesale & retail | 2016 |
| Fresh by Nature Ltd | Administrative & support | 2025 |
| Fresh Creative Aspirations CIC | Education | 2024 |
| Friends of New Hartley First School CIC | Administrative & support | 2026 |
| Friez&Burgz Whitley Bay Ltd | Hospitality | 2024 |
| FTB Joinery & Building Ltd | Construction | 2015 |
| FTS (North East) Limited | Professional & scientific | 2007 |
| Fuel GAS Services Limited | Extraterritorial | 2006 |
| Fulcrum Surveyors Ltd | Real estate | 2024 |
| Fullscope HSE Ltd | Professional & scientific | 2026 |
| FUN Little Foodies Gosforth and Ponteland Limited | Education | 2019 |
| FUN Little Foodies Limited | Education | 2016 |
| FUN Little Foodies North Tyneside Ltd | Education | 2024 |
| Future and Co Films Limited | Information & communication | 2013 |
| G E Clark Limited | Construction | 1999 |
| G H Contract Services Limited | Construction | 2010 |
| G'Den Spaces Ltd | Manufacturing | 2021 |
| G5S Security Ltd | Administrative & support | 2018 |
| GAA Taxi Solutions Ltd | Administrative & support | 2012 |
| GAD Garden Maintenance Ltd | Administrative & support | 2022 |
| GAD Home Maintenance Ltd | Construction | 2023 |
| Gany Project Services Limited | Administrative & support | 2013 |
| Gany Properties Limited | Hospitality | 2018 |
| Garden Savvy Ltd | Administrative & support | 2024 |
| Garlick Properties Ltd | Real estate | 2025 |
| GAS Engine Consulting Ltd | Professional & scientific | 2023 |
| Gasology Heating Ltd | Construction | 2024 |
| GBO Building Services Ltd | Construction | 2021 |
| GCH Boiler Services Ltd | Construction | 2025 |
| General Public Design Ltd | Professional & scientific | 2020 |
| Genhawk Limited | Health & social care | 1989 |
| GEO21 Ltd | Information & communication | 2013 |
| Geordie-Gin Co Ltd | Manufacturing | 2014 |
| George Bower Joinery Ltd | Construction | 2016 |
| George Watson Ltd | Construction | 2014 |
| Geosafe Tech Ltd | Information & communication | 2023 |
| GET Connected NOW Ltd | Real estate | 2020 |
| GH Seafret Limited | Manufacturing | 2023 |
| Ghazal Jafari Tattoo Art Ltd | Arts & recreation | 2022 |
| Ghoti Publishing Limited | Information & communication | 2014 |
| GI Technical Limited | Professional & scientific | 2017 |
| Giant Project Solutions Ltd | Other services | 2019 |
| Giant Solutions Ltd | Construction | 2013 |
| Gibson NE Limited | Construction | 2022 |
| Gifts & Temptations Ltd | Wholesale & retail | 2021 |
| Gilbert and Smith's Ltd | Hospitality | 2020 |
| Ginger Biscuit Holidays Ltd | Real estate | 2025 |
| Gino Ferrari Limited | Professional & scientific | 1992 |
| Givify Ltd | Wholesale & retail | 2025 |
| GKM Aviation Limited | Administrative & support | 2025 |
| Glenallen Properties Limited | Real estate | 1984 |
| Glennco Ltd | Professional & scientific | 2022 |
| Global Engineering Services Ltd | Professional & scientific | 2023 |
| Globallink Commercials Ltd | Wholesale & retail | 2025 |
| Glorystar Europe Limited | Extraterritorial | 2023 |
| Glorystar Laser Limited | Extraterritorial | 2022 |
| GM Bell Property Services Limited | Real estate | 2019 |
| Goodles Medical Ltd | Health & social care | 2023 |
| Gordbeck Ltd | Real estate | 2023 |
| Gorgeous Newcastle Limited | Real estate | 2021 |
| Gosforth Car Centre Limited | Wholesale & retail | 2016 |
| Gosslets Limited | Real estate | 2017 |
| Gpics Limited | Professional & scientific | 2013 |
| Gradius Commissioning Limited | Construction | 2014 |
| Grange Road (Morpeth) Management Ltd | Real estate | 2020 |
| Grant James Consultancy Ltd | Administrative & support | 2016 |
| Grants Bakery Ltd | Hospitality | 2011 |
| Grants Coffee House Ltd | Hospitality | 2012 |
| Great British Interiors Ltd | Wholesale & retail | 2016 |
| Great North Pizza Company Ltd | Hospitality | 2022 |
| Great North Scaffolding Limited | Construction | 2015 |
| Green 1960 Limited | Extraterritorial | 2013 |
| Green Box Container Storage Ltd | Administrative & support | 2019 |
| Greg Scott Tattoos Limited | Arts & recreation | 2015 |
| Greystrands Limited | Information & communication | 2025 |
| GRH Offshore Services Ltd | Manufacturing | 2024 |
| Grove House Residents (Gosforth) Limited | Households | 1978 |
| GSO Property Ltd | Real estate | 2025 |
| Gtis Europe Limited | Wholesale & retail | 2014 |
| Gym 24/7 Ltd | Arts & recreation | 2026 |
| H C F Wealth Management Limited | Financial services | 2018 |
| H E C Decorating Specialists Limited | Construction | 2010 |
| H M Auditing Limited | Health & social care | 2002 |
| H T Media Limited | Information & communication | 2002 |