| GKR Karate Admin Services LLP | | 2006 |
| Glacial Art Ice Sculptors Ltd | Professional & scientific | 2013 |
| Glaze Aluminium Residential Ltd | Construction | 2019 |
| Glebe (U.K.) Limited | Administrative & support | 1959 |
| Glenbourne Limited | Real estate | 1988 |
| Glenlee Holdings Limited | Real estate | 2017 |
| GLJ Commercial Ltd | Real estate | 2024 |
| GLO Formwork Ltd | Construction | 2026 |
| Global Connect UC Ltd | Information & communication | 2018 |
| Global Joinery Limited | Construction | 2023 |
| Global Jujitsu Academy Ltd | Education | 2009 |
| Glow Cosmetics Ltd | Other services | 2020 |
| Glynn Andrews Ltd | Wholesale & retail | 2020 |
| GM14 Limited | Households | 2016 |
| GMB Joinery (NW) Limited | Construction | 2015 |
| GMC Motorsport Logistics & Support Ltd | Transport & logistics | 2026 |
| Gmnc Properties Ltd | Households | 2024 |
| Gnoel Ltd | Real estate | 2018 |
| Goal Developments & Projects Ltd | Construction | 2026 |
| Goddard Investments | Real estate | 1954 |
| Gold Standard Care Services Ltd | Health & social care | 2020 |
| Golden Mile Logistics Ltd | Transport & logistics | 2024 |
| Golden Triangle Garage Widnes Ltd | Wholesale & retail | 2019 |
| Gornall Electrical Ltd | Construction | 2019 |
| Gowin Transport Ltd | Transport & logistics | 2014 |
| GPA Consulting NW Ltd | Professional & scientific | 2022 |
| Gpharm Healthcare Limited | Health & social care | 2019 |
| Grace Karalius Property Ltd | Real estate | 2024 |
| Gracie Barra (Halton Widnes) Ltd | Other services | 2022 |
| Gradwell Investments Limited | Construction | 2023 |
| Graham International Limited | Transport & logistics | 2018 |
| Gralina Ltd | Real estate | 2022 |
| Grand Designs (North West) Ltd | Construction | 2008 |
| Grandarea Limited | Extraterritorial | 2012 |
| Grange Drive 08/05/1961 Limited | Extraterritorial | 2014 |
| Graphite Consultancy Ltd | Professional & scientific | 2026 |
| Great British Building Solutions Ltd | Construction | 2024 |
| Great British Commercial Holdings Ltd | Real estate | 2019 |
| Great British Domestic Holdings Ltd | Real estate | 2019 |
| Great Trucks Ltd | Transport & logistics | 2020 |
| Greature Limited | Health & social care | 2025 |
| Green Clock Ltd | Real estate | 2021 |
| Green Coffee Bean Limited | Hospitality | 2021 |
| Green Link Estates Ltd | Real estate | 2018 |
| Greenhalgh Developments Ltd | Construction | 2025 |
| Greens Family Holdings Limited | Real estate | 2026 |
| Greenwood Widnes Ltd | Hospitality | 2025 |
| Griff Enterprises Ltd | Professional & scientific | 2026 |
| Grind Coffee by Transfit Ltd | Hospitality | 2025 |
| Griswold Investments Limited | Professional & scientific | 2019 |
| Group Plus Ltd | Information & communication | 2002 |
| Grow United Limited | Wholesale & retail | 2016 |
| Grts Property Management Ltd | Households | 2024 |
| Grundy & Co. Excavations Limited | Water & waste | 1988 |
| Grundy Aggregates Limited | Professional & scientific | 2011 |
| Grundy Demolition Limited | Professional & scientific | 2004 |
| GRV Media Holdings Limited | Financial services | 2021 |
| GRV Media Ltd | Administrative & support | 2001 |
| GS Sport Promotions Limited | Professional & scientific | 2022 |
| GSB Signs Limited | Manufacturing | 1999 |
| GSH Waste Recycling Ltd | Water & waste | 2007 |
| GT Applications Ltd | Information & communication | 2025 |
| GT Commercial Tiling Specialists Ltd | Construction | 2025 |
| GT Luxe Clean Ltd | Administrative & support | 2025 |
| GT Pro Machinery Ltd | Manufacturing | 2026 |
| Guddem Ltd | Arts & recreation | 2017 |
| Gussion Transport UK Limited | Transport & logistics | 2001 |
| Gusto Sports Limited | Wholesale & retail | 2023 |
| GW Sports Limited | Real estate | 2021 |
| Gyasiwah Financial Services Ltd | Financial services | 2024 |
| Gyasiwah Investments Limited | Financial services | 2021 |
| Gyasiwah Property Developers Ltd | Real estate | 2021 |
| Gym Kids LLP | | 2025 |
| H & J (Liverpool) Ltd | Real estate | 2013 |
| H & L Logistics Ltd | Transport & logistics | 2019 |
| H S Mann Coaching Ltd | Information & communication | 2024 |
| H. K. G. Investments | Professional & scientific | 1998 |
| H.Whiston Limited | Financial services | 2026 |
| Habbla Engineering Ltd | Professional & scientific | 2022 |
| Hale Group (Widnes) Limited | Professional & scientific | 2005 |
| Hale RD MOT Centre Ltd | Wholesale & retail | 2023 |
| Halewood Engineering Services Ltd | Other services | 2009 |
| Halfam Retail Ltd | Wholesale & retail | 2025 |
| Hall & Roberts (Holdings) Limited | Financial services | 2018 |
| Hall & Roberts (Provisions) Limited | Manufacturing | 1975 |
| Hall & Roberts (Wholesale) Limited | Wholesale & retail | 2018 |
| Halton and Cheshire Roofing Ltd | Construction | 2023 |
| Halton and ST Helens Voluntary and Community Action | Information & communication | 1990 |
| Halton Care Agency Ltd | Administrative & support | 2024 |
| Halton Chamber Enterprises Ltd | Other services | 2017 |
| Halton Chamber of Commerce and Enterprise | Other services | 1995 |
| Halton Citizens Advice Bureau | Other services | 2005 |
| Halton Concrete Ltd | Administrative & support | 2009 |
| Halton Construction Holdings Ltd | Financial services | 2018 |
| Halton GAS Ltd | Wholesale & retail | 2026 |
| Halton Help at Home Ltd | Health & social care | 2022 |
| Halton Insurance Services Limited | Financial services | 1985 |
| Halton Lettings Ltd | Real estate | 2026 |
| Halton Logistic Ltd | Transport & logistics | 2025 |
| Halton MMA Ltd | Arts & recreation | 2024 |