| Gresham Wealth Management Holdings Limited | Financial services | 2014 |
| Grey Black Apparel Ltd | Wholesale & retail | 2015 |
| Grey Door Lettings Ltd | Real estate | 2020 |
| Grey Road (Oakdale) Management Limited | Households | 1973 |
| Greystone Financial Services Limited | Financial services | 1991 |
| Greystone Wealth Management Limited | Financial services | 2000 |
| Griffin & Outwood Limited | Households | 2007 |
| Griffin Ground Investigation Limited | Professional & scientific | 2020 |
| Griffiths Project Services Limited | Professional & scientific | 2018 |
| Griffiths Projects Limited | Professional & scientific | 2024 |
| Grim Barber Ltd | Other services | 2023 |
| Grinlow Limited | Real estate | 2017 |
| Groby Court Flats Management Company Limited | Households | 1987 |
| Grogan Limited | Professional & scientific | 2023 |
| Groma Engineering Ltd | Construction | 2020 |
| Grosvenor Court (Cheadle) Management Company Limited | Households | 1998 |
| Grosvenor Court Flats (Ashton-Upon-Mersey 1985) Limited | Households | 1984 |
| Grosvenor Homes (Hale) Limited | Construction | 2009 |
| Ground and Project Consultants Ltd | Construction | 2014 |
| Grove Court (Lymm) Limited | Households | 1986 |
| Grove Lane Consultancy Services Ltd | Professional & scientific | 2025 |
| Grove Trust,Limited(The) | Real estate | 1918 |
| Grow & Learn CIC | Education | 2025 |
| Growmore International Engineering Consultant Ltd | Professional & scientific | 2024 |
| Growmore Property Ltd | Real estate | 2026 |
| Growprocure Consultancy Limited | Professional & scientific | 2024 |
| Growth Kitchen Ltd | Hospitality | 2020 |
| Growth Marketing Consultancy Ltd | Professional & scientific | 2025 |
| GRS Transport Ltd. | Transport & logistics | 2016 |
| GS Pledge Co. Limited | Financial services | 2018 |
| GS Property Portfolio Ltd | Real estate | 2021 |
| GSA Systems Ltd | Information & communication | 2015 |
| GSG Sunrise Enterprise Limited | Health & social care | 2025 |
| GSL Properties (NW) Ltd | Real estate | 2024 |
| GT Holdco Limited | Financial services | 2024 |
| GT Technology Solutions Limited | Information & communication | 2022 |
| Gtas Developments Limited | Construction | 2000 |
| Gtbc Services Limited | Information & communication | 2023 |
| GTL Consulting Group Ltd | Professional & scientific | 2017 |
| Gttt Consultancy Limited | Professional & scientific | 2025 |
| GU Consultancy Ltd | Information & communication | 2018 |
| Guardian Angel PVT Ltd | Health & social care | 2016 |
| Guardian Goalposts Ltd | Manufacturing | 2018 |
| Guardian Property Management Limited | Real estate | 1987 |
| Guardiantech Solutions Limited | Professional & scientific | 2024 |
| Guerin Energy Services Ltd | Construction | 2020 |
| Guerin Holdings Limited | Financial services | 2023 |
| Guidant UK Limited | Financial services | 2023 |
| Guildhall Street Management Ltd | Real estate | 2022 |
| Gujral Family Limited | Health & social care | 2016 |
| Gulcha Limited | Professional & scientific | 2024 |
| Gumptiontech Limited | Information & communication | 2025 |
| Gunning Limited | Wholesale & retail | 1990 |
| Gunning Occupational Health Ltd | Health & social care | 2005 |
| Gurara Chops Ltd | Hospitality | 2020 |
| Gussago Ltd | Professional & scientific | 2025 |
| GW Wines Limited | Wholesale & retail | 1991 |
| Gwilcross Limited | | 1977 |
| Gym Systems Limited | Other services | 2024 |
| H and Q Limited | Health & social care | 2023 |
| H Dashti Limited | Health & social care | 2015 |
| H F Contract Furniture Limited | Wholesale & retail | 2004 |
| H L Taylor Limited | Real estate | 2007 |
| H Lewis Holdings Ltd | Households | 2023 |
| H Packer Ltd | Health & social care | 2020 |
| H Pettener Properties Ltd | Real estate | 2023 |
| H R Properties Limited | Real estate | 2005 |
| H Unit Holdings Ltd | Information & communication | 2022 |
| H&A Dental Ltd | Health & social care | 2022 |
| H&M Global Limited | Professional & scientific | 2019 |
| H&Z Brothers Ltd | Hospitality | 2020 |
| H. C. Management Company Limited | Households | 1985 |
| H. I . S. Bathrooms Ltd | Wholesale & retail | 2018 |
| H1 Life Sciences Limited | Information & communication | 2021 |
| H2 Fitness Studios Ltd | Arts & recreation | 2025 |
| Haan Limited | Administrative & support | 2017 |
| Habitation (BTR) Limited | Construction | 2019 |
| Haboya Ltd | Health & social care | 2024 |
| Hackajob Ltd | Information & communication | 2014 |
| Hackett Equine Academy Ltd | Education | 2024 |
| Hackett Family Investments Ltd | Professional & scientific | 2025 |
| Hadriana Engineering Ltd | Professional & scientific | 2017 |
| Hadwell Homes Ltd | Real estate | 2025 |
| HAF Business Management Limited | Administrative & support | 2025 |
| Hafod Management Services Company Limited | Real estate | 2002 |
| Haigh and Hughes Property Limited | Households | 2022 |
| Haigh Lawn Management Limited | Households | 1983 |
| Hair Atelier Ltd | Other services | 2018 |
| Hair Station Limited | Other services | 2023 |
| Hairbyminz Limited | Other services | 2022 |
| Hairs 4 U Ltd | Health & social care | 2015 |
| Hairtox Limited | Other services | 2023 |
| Hajones Limited | Administrative & support | 2025 |
| Hakim & Co Interiors Ltd | Wholesale & retail | 2026 |
| Hakim-Smith Group Ltd | Financial services | 2026 |
| Hakrel Holdings Limited | Professional & scientific | 2024 |
| Halcyon Technology Limited | Information & communication | 2024 |
| Hale and Hawthorn Limited | Professional & scientific | 2023 |
| Hale Barber Limited | Other services | 2023 |
| Hale Barber Shop Limited | Other services | 2026 |