| First Class Learning Chester LE Street Ltd | Education | 2025 |
| First Class Leisure Caravans Limited | Hospitality | 2023 |
| First Steps in Woodlea School Ltd | Health & social care | 2020 |
| Fite Health Performance Gym Ltd | Arts & recreation | 2023 |
| Fivefinger Urbanwear Ltd | Wholesale & retail | 2016 |
| Fjpd Ltd | Professional & scientific | 2025 |
| FK Kampers Limited | Administrative & support | 2018 |
| Floateez UK Ltd | Wholesale & retail | 2019 |
| Floorstyle Group Limited | Construction | 2001 |
| Fluid Technology Generation Limited | Manufacturing | 1998 |
| Flyingbolt Bloodstock Limited | Agriculture & fishing | 2015 |
| Fore & Pour Ltd | Hospitality | 2025 |
| Forrester Properties (North East) Limited | Real estate | 2024 |
| Fortune 9988 Limited | Real estate | 2026 |
| Fortune HE 88 Ltd | Hospitality | 2025 |
| Fossil Consulting Ltd | Real estate | 2006 |
| Fosterspropertygroup Ltd | Households | 2025 |
| Fote Limited | Health & social care | 2023 |
| Fourto Engineering Limited | Professional & scientific | 2023 |
| Frank Coaching & Consultancy Ltd | Administrative & support | 2024 |
| Fraser Aesthetics Limited | Other services | 2024 |
| Fraser Aesthetics Training Academy Limited | Other services | 2025 |
| Fresh DEW Concept Ltd | Wholesale & retail | 2025 |
| Fruityyy Slime Ltd | Manufacturing | 2023 |
| Fryer's Limited | Manufacturing | 1997 |
| Fueltech Ltd | Wholesale & retail | 2025 |
| Fusion Spirits Ltd | Wholesale & retail | 2023 |
| Future Health North East CIC | Education | 2023 |
| Futures Consulting Group Ltd | Professional & scientific | 2019 |
| G Baines Horseboxes Limited | Manufacturing | 2006 |
| G Heaton Electrical Limited | Professional & scientific | 2012 |
| G&B Civils Limited | Construction | 2025 |
| Gainford Care Homes Limited | Health & social care | 1994 |
| Gainford Group Limited | Extraterritorial | 2018 |
| Garant Transport Ltd | Transport & logistics | 2023 |
| Gardeners Paradise Limited | Wholesale & retail | 2020 |
| Garnethill Blenders Ltd. | Administrative & support | 1996 |
| GAS PWR Energy Ltd | Construction | 2026 |
| Gastro Ltd | Hospitality | 2019 |
| GB Travel Group Ltd | Administrative & support | 2007 |
| GCA Financial Planning Limited | Professional & scientific | 2006 |
| GCA North East Ltd. | Real estate | 2016 |
| Geckosoftware Ltd | Information & communication | 2025 |
| Geekiam Collectables Ltd | Wholesale & retail | 2024 |
| Gemini Tiling Limited | Construction | 2024 |
| General Engineering Limited | Extraterritorial | 2003 |
| Genesis One (NO 11) Limited | Hospitality | 2022 |
| Genesis One (NO 12) Limited | Hospitality | 2022 |
| Genesis One (NO 13) Limited | Hospitality | 2022 |
| Genesis One (NO 14) Limited | Hospitality | 2022 |
| Genesis One (NO 15) Limited | Hospitality | 2022 |
| Genesis One (NO 16) Limited | Hospitality | 2022 |
| Genesis One (NO 17) Limited | Hospitality | 2022 |
| Genesis One (NO 18) Limited | Real estate | 2023 |
| Genesis One (NO 19) Limited | Real estate | 2023 |
| Genesis One (NO 20) Limited | Real estate | 2023 |
| Genesis One (NO 21) Limited | Real estate | 2025 |
| Genesis One Ltd | Administrative & support | 2016 |
| GF Finance Limited | Information & communication | 2016 |
| GGP Electrical Services Ltd | Construction | 2025 |
| GH Lettings Limited | Real estate | 2003 |
| Ghouslink Traders Ltd | Wholesale & retail | 2025 |
| GIA Long Ltd | Other services | 2023 |
| Gibside Golden FRY Ltd | Hospitality | 2014 |
| Giga Recruitment Ltd | Administrative & support | 2018 |
| GJB Learning Disability & Autism Consultancy Ltd | Professional & scientific | 2024 |
| Gkbr Networks Limited | Information & communication | 2025 |
| Glenn Norris Hall Ltd | Transport & logistics | 2026 |
| GM Caravans Ltd | Professional & scientific | 2024 |
| GNR Offshore Ltd | Professional & scientific | 2023 |
| Goldfinch Birdbox LLP | | 2013 |
| Goldfinch Entertainment Limited | Information & communication | 2014 |
| Goldfinch Finance Limited | Information & communication | 2016 |
| Goldfinch Holdings Limited | Professional & scientific | 2016 |
| Goldfinch Property Holdings Limited | Real estate | 2020 |
| GP Fabs Ltd | Manufacturing | 2018 |
| GPR Services Limited | Construction | 2015 |
| Grace Samuel People Solutions Ltd | Administrative & support | 2024 |
| Gracie J'S Ltd | Hospitality | 2021 |
| Graham Compliance Limited | Professional & scientific | 2024 |
| Grand Hotel Spa Days Limited | Other services | 2018 |
| Grange Dene Cars & Vehicle Sourcing Ltd | Wholesale & retail | 2024 |
| Grange Villa Community Enterprise | Other services | 2000 |
| Great Lumley Community CIC | Education | 2024 |
| Great Lumley Convenience Store Ltd | Wholesale & retail | 2018 |
| Green Dolphin (Tccr) Limited | Professional & scientific | 2025 |
| Green GEM Marketing Ltd | Financial services | 2022 |
| Green Lane Coffee Shop Ltd | Hospitality | 2020 |
| Green Lane Nursery (North East) Ltd | Wholesale & retail | 2020 |
| Greengages Management Ltd | Administrative & support | 2015 |
| Greens Property Developments Limited | Real estate | 2006 |
| Grier & Co Limited | Extraterritorial | 2016 |
| Grippe Services Limited | Information & communication | 2014 |
| GRM Dental Limited | Health & social care | 2024 |
| H FRY Ltd | Hospitality | 2026 |
| H Lord Holdings Limited | Financial services | 2022 |
| H T Imports Exports Limited | Wholesale & retail | 2017 |
| H.H. Housing Limited | Real estate | 2014 |
| H.S.Q.Sewing School Limited | Professional & scientific | 2018 |
| H18 ORR Ltd | Manufacturing | 2025 |