| Gustaf Creative Ltd | Professional & scientific | 2020 |
| GUT Health Nutrition Ltd | Health & social care | 2019 |
| Gutter Clearing & Cleaning Manchester West Ltd | Administrative & support | 2024 |
| Gutterman Home Services Ltd | Construction | 2025 |
| Gwanju Ltd | Wholesale & retail | 2024 |
| Gwion Edwards Properties Ltd | Real estate | 2023 |
| Gwmed Ltd | Wholesale & retail | 2023 |
| GWP Online Ltd | Wholesale & retail | 2024 |
| Gymattack Fitness Ltd | Arts & recreation | 2014 |
| Gyvva Ltd | Information & communication | 2021 |
| H & a Management Services Ltd | Administrative & support | 2016 |
| H & H Building Contractors Ltd | Construction | 2010 |
| H & H Properties (Oldham) Ltd | Real estate | 2022 |
| H & W International Ltd | Professional & scientific | 2017 |
| H C North Group Ltd | Real estate | 2025 |
| H Caxon Building Ltd | Other services | 2025 |
| H G Decorators Limited | Other services | 2006 |
| H J D Builders Ltd | Construction | 2025 |
| H Malik Pharma Ltd | Health & social care | 2024 |
| H Property Group Ltd | Real estate | 2025 |
| H R Motor Company (Mossley) Ltd | Wholesale & retail | 2025 |
| H R Motors Oldham Ltd | Wholesale & retail | 2023 |
| H Thornton (NW) Limited | Extraterritorial | 2020 |
| H W Platinum Motors Ltd | Wholesale & retail | 2025 |
| H Wiltshire Holdings Limited | Financial services | 2025 |
| H&B Bathrooms Ltd | Wholesale & retail | 2017 |
| H&D Properties Shaw Limited | Real estate | 2022 |
| H&E Expert Roofing Ltd | Construction | 2025 |
| H&H Demoltion and Removals Ltd | Construction | 2025 |
| H&I Nationwide Limited | Other services | 2014 |
| H&J Timber Ltd | Administrative & support | 2013 |
| H&M Renovators Ltd | Construction | 2026 |
| H&M Rentals Ltd | Real estate | 2019 |
| H&N Sofa Limited | Wholesale & retail | 2026 |
| H&P Property Services Ltd | Real estate | 2025 |
| H&S Consults Limited | Construction | 2017 |
| H&W Joinery Installations Ltd | Construction | 2020 |
| H&Z Professional Limited | Health & social care | 2026 |
| H. Lord & SON (Oldham) Limited | Construction | 1957 |
| H.A.D. Distributors Ltd. | Transport & logistics | 2006 |
| H.A.M Builder Ltd | Construction | 2021 |
| H.Heywood & Company Limited | | 1945 |
| H12 Transport Ltd | Transport & logistics | 2024 |
| H2HUB Services (NW) Ltd | Real estate | 2025 |
| H4 (UK) Limited | Transport & logistics | 2009 |
| H4AN Enterprise Ltd | Wholesale & retail | 2024 |
| HA Bros Ltd | Administrative & support | 2017 |
| HA Pharms Ltd | Health & social care | 2022 |
| HAA Holdings Ltd | Construction | 2019 |
| Haatim Javid Limited | Wholesale & retail | 2022 |
| Haayfi Properties Ltd | Real estate | 2025 |
| Habby Holdings Ltd | Real estate | 2023 |
| Habib&Bro Ltd | Wholesale & retail | 2025 |
| Habibi Thobe Ltd | Wholesale & retail | 2023 |
| Habibs Homes Ltd | Real estate | 2025 |
| Habibuk Ltd | Hospitality | 2025 |
| Habitat Electrical Ltd | Construction | 2024 |
| Habitat Oldham Limited | Professional & scientific | 2012 |
| Hadeeqa Bibi Consultancy Ltd | Health & social care | 2024 |
| Hadeez Ltd | Wholesale & retail | 2025 |
| Hader Estates Ltd | Real estate | 2018 |
| Hadfield CNC & Electronics Co. Ltd. | Manufacturing | 1998 |
| Hadi K Motors Limited | Wholesale & retail | 2020 |
| Hads Retail Ltd | Wholesale & retail | 2026 |
| Haere RĀ Ltd | Financial services | 2012 |
| Haes Property Group Ltd | Real estate | 2022 |
| Hafiz Construction & Management Ltd | Construction | 2020 |
| Hafiz Ltd | Wholesale & retail | 2023 |
| Hafiz Zahid Ltd | Wholesale & retail | 2025 |
| Hagdib Limited | Information & communication | 2024 |
| Hagues Skip Hire Limited | Water & waste | 2004 |
| Haider Traders Limited | Wholesale & retail | 2017 |
| Haidery Traders Ltd | Wholesale & retail | 2025 |
| Haigh LLC Ltd | Health & social care | 2022 |
| Hails Fulfilment Ltd | Professional & scientific | 2021 |
| Haim Assets Ltd | Real estate | 2025 |
| Hair @ Bespoke Limited | Other services | 2015 |
| Hair and Beauty Infusion by Serenity Limited | Other services | 2023 |
| Hair Design Studio (NW) Ltd | Other services | 2009 |
| Hair Extn Manc Ltd | Other services | 2026 |
| Hair Fusion Ltd | Wholesale & retail | 2025 |
| Hair Xperience Ltd | Other services | 2022 |
| Haitham Ltd | Wholesale & retail | 2020 |
| Haji Foodstore Ltd | Wholesale & retail | 2021 |
| Hajj Link Ltd | Information & communication | 2025 |
| Hakim Property Developments Ltd | Real estate | 2026 |
| Hala Property Limited | Real estate | 2020 |
| HALA1 Property Limited | Real estate | 2022 |
| Halal DJ Ltd | Information & communication | 2022 |
| Hale & Vale Ltd | Wholesale & retail | 2025 |
| Hale Fayre Ltd | Wholesale & retail | 2022 |
| Hale Training Club - RAM Mill Limited | Arts & recreation | 2022 |
| Halfcentury Ltd | Wholesale & retail | 2025 |
| Halima Property Services Limited | Real estate | 2014 |
| Hall Street Wash Limited | Wholesale & retail | 2026 |
| Hallmark Group Ltd | Manufacturing | 2024 |
| Hallmark Memorials Ltd | Manufacturing | 2020 |
| Halls Homes Ltd | Construction | 2024 |
| Halls Way Ventures Limited | Real estate | 2014 |
| Halo Renewables South Ltd | Construction | 2025 |