| Green Mint Herbs Ltd | Manufacturing | 2019 |
| Green Planet Marketing Limited | Professional & scientific | 2008 |
| Green Rose Vitality Ltd | Other services | 2023 |
| Green System Online Ltd | Wholesale & retail | 2025 |
| Green Tea Properties Ltd | Real estate | 2022 |
| Green Valley Property Limited | Real estate | 2025 |
| Greenbank Finance Limited | | 1987 |
| Greenbank Lawyers Ltd | Professional & scientific | 2011 |
| Greenbank Real Estates Limited | Professional & scientific | 2011 |
| Greendale Kitchen Ltd | Wholesale & retail | 2015 |
| Greene and Whyte Management Ltd | Real estate | 2021 |
| Greenfields Community Centre Ltd | Education | 2017 |
| Greenfix Properties Ltd | Real estate | 2026 |
| Greenlife Medic Ltd | Health & social care | 2025 |
| Greenlightautomotive Ltd | Wholesale & retail | 2015 |
| Greenoptix Ltd | Health & social care | 2014 |
| Greenserve Ltd | Transport & logistics | 2024 |
| Greenstone Lawyers Ltd | Professional & scientific | 2024 |
| Greenways Processing Ltd | Water & waste | 2022 |
| Gregory Audio Visual Limited | Wholesale & retail | 2001 |
| Gregson Holdings Limited | Construction | 2025 |
| Grey Ghost Group Limited | Professional & scientific | 2022 |
| Grey Line Motor Services Ltd | Transport & logistics | 2021 |
| GRF Developments Ltd | Construction | 2024 |
| Grfx Grid Limited | Information & communication | 2023 |
| Griffith Engineering Limited | Other services | 2008 |
| Grill & Gravy Ltd | Hospitality | 2025 |
| Grillish Blackburn Ltd | Hospitality | 2021 |
| Grillo Griller Ltd | Hospitality | 2020 |
| Grimax Ltd | Wholesale & retail | 2025 |
| Grimshaw Properties Limited | Real estate | 2001 |
| Grimshaw Render Systems Ltd | Construction | 2004 |
| Gritting & Snow Clearance Lancashire Ltd | Other services | 2024 |
| Grosik (Blackburn) Ltd | Wholesale & retail | 2015 |
| Groundup Architecture Ltd | Construction | 2023 |
| Groundwork Contract Services Ltd | Extraterritorial | 2004 |
| Groundwork Limited | Extraterritorial | 2004 |
| Groundwork Pennine Lancashire Limited | Professional & scientific | 2008 |
| Groundworx-Nw Ltd | Administrative & support | 2018 |
| Group 360 Omers Limited | Financial services | 2026 |
| Groupmo Ltd | Wholesale & retail | 2026 |
| Grow-Sme Ltd | Information & communication | 2025 |
| Growing Minds Home Nursery Limited | Health & social care | 2025 |
| Growing Resilience CIC | Health & social care | 2020 |
| Growth Hive Transformation Ltd | Professional & scientific | 2019 |
| Growth Lancashire Limited | Other services | 2004 |
| Growthlane Advisory Ltd | Professional & scientific | 2025 |
| Grub Corp Blackburn Limited | Hospitality | 2025 |
| Grumpy Grill Ltd | Hospitality | 2026 |
| GS Controls Limited | Manufacturing | 2001 |
| GS Medcare Ltd | Health & social care | 2015 |
| GS Social Care Solutions Ltd | Health & social care | 2006 |
| GT Tools Limited | Wholesale & retail | 2014 |
| GT. Harwood Plumbing Merchants Ltd | Wholesale & retail | 2009 |
| GTS Automotive Ltd | Wholesale & retail | 2019 |
| GTS Transport Services Limited | Transport & logistics | 2025 |
| Guano Kookie Group Limited | Financial services | 2024 |
| Guarantee Ltd | Wholesale & retail | 2025 |
| Guardex Ltd | Administrative & support | 2023 |
| Guardian Care and Security Ltd | Administrative & support | 2025 |
| Guardian Group Services Ltd | Transport & logistics | 2024 |
| Guardian Transport Group Limited | Transport & logistics | 2025 |
| GUD LUK Ltd | Wholesale & retail | 2014 |
| Gueststay Management Limited | Real estate | 2025 |
| Guided Legacy Ltd | Professional & scientific | 2026 |
| Guildon Products Limited | Manufacturing | 2011 |
| GUL Care Services Ltd | Health & social care | 2024 |
| Gulfam Tahir PVT Ltd | Information & communication | 2023 |
| Gultekin Bakery Ltd | Manufacturing | 2020 |
| Gurara Chops Hub Ltd | Hospitality | 2025 |
| Gurkki Ltd | Wholesale & retail | 2023 |
| Gwats Limited | Information & communication | 2017 |
| Gyrfalcon Solutions Ltd | Wholesale & retail | 2022 |
| H & D Hospitality Limited | Hospitality | 2023 |
| H & H Properties & Lettings Limited | Real estate | 2026 |
| H & M News One Ltd | Wholesale & retail | 2024 |
| H & N Trading Limited | Wholesale & retail | 2019 |
| H & S Ecommerce Ltd | Wholesale & retail | 2025 |
| H & S Interiors Limited | Wholesale & retail | 2009 |
| H a Chauffeur Ltd | Transport & logistics | 2025 |
| H a Clarkson Limited | Wholesale & retail | 2010 |
| H a Mini Supermarket Ltd | Wholesale & retail | 2025 |
| H and M Properties (Blackburn) Limited | Professional & scientific | 2014 |
| H IT Services Limited | Information & communication | 2022 |
| H M Recruitment Limited | Professional & scientific | 2005 |
| H Optical Ltd | Professional & scientific | 2022 |
| H S Goldman Ltd | Wholesale & retail | 2025 |
| H&A Consultancy Services Ltd | Professional & scientific | 2019 |
| H&A Property Developments Ltd | Real estate | 2022 |
| H&A Upholstery Ltd | Manufacturing | 2024 |
| H&Aonline Limited | Wholesale & retail | 2026 |
| H&H Insights Limited | Administrative & support | 2024 |
| H&H News Ltd | Wholesale & retail | 2013 |
| H&H Rentals Ltd | Households | 2023 |
| H&K Commercial Limited | Wholesale & retail | 2025 |
| H&S Express Ltd | Wholesale & retail | 2024 |
| H&S Key Properties Limited | Real estate | 2026 |
| H&S Property Partners Ltd | Real estate | 2025 |
| H&S Supply Co Ltd | Wholesale & retail | 2025 |
| H. & S. Properties (Blackburn) Limited | Real estate | 1981 |