| GLM Construction Management Ltd | Construction | 2026 |
| Global Shipping Containers Limited | Transport & logistics | 2016 |
| Global Telecom Marketing Ltd | Administrative & support | 2014 |
| Globe Northwest Ltd | Construction | 2021 |
| Glsd Services Limited | Information & communication | 2016 |
| Goddard Electrical Services Limited | Construction | 1995 |
| Golden Doubloon Limited | Real estate | 2025 |
| Golf Index Limited | Professional & scientific | 2023 |
| Gorillah Funk Ltd | Information & communication | 2016 |
| GP Social Media Ltd | Professional & scientific | 2020 |
| GQ Construction Ltd | Construction | 2025 |
| Graham Project Services Limited | Information & communication | 2005 |
| Gray Matter Finance Solutions Ltd | Financial services | 2018 |
| Great Mane by Glynn & Tonic Ltd | Professional & scientific | 2025 |
| Green Power Home Services Ltd | Construction | 2011 |
| Green River CCR Limited | Health & social care | 2023 |
| Greencare Amenity Ltd | Wholesale & retail | 2022 |
| Greenfield Road Limited | Real estate | 2016 |
| Greenfields Advisory Limited | Administrative & support | 2025 |
| Greenfields UK Holdings Limited | Financial services | 2025 |
| Greenways Investments Ltd | Real estate | 2016 |
| Greenways Operations Ltd | Real estate | 2024 |
| Greenworld (NW) Limited | Administrative & support | 2006 |
| Greyrigg Property Limited | Real estate | 2017 |
| Greyrigg Services Limited | Financial services | 2020 |
| Griffin Care Homes Limited | Health & social care | 2017 |
| Grisdale Investments Ltd | Real estate | 2024 |
| Grizwalds Limited | Wholesale & retail | 2020 |
| Groundation Civil Engineering Ltd | Construction | 2014 |
| Groundation Holdings Ltd | Financial services | 2026 |
| Groundtech North West Ltd | Construction | 2017 |
| Growers Worldwide Services Limited | Wholesale & retail | 2017 |
| Growing Brands Ltd | Professional & scientific | 2026 |
| GT Social Care Services Limited | Health & social care | 2021 |
| GTG8 Ltd | Financial services | 2026 |
| GTS Contractors Limited | Construction | 2023 |
| GUY Ogden Ltd | Professional & scientific | 2025 |
| H.Jenkinson & Company,Limited | Wholesale & retail | 1920 |
| Haesco Limited | Professional & scientific | 2003 |
| Haleian Heating and Plumbing Ltd | Construction | 2025 |
| Hamac Construction Ltd | Construction | 2018 |
| Handyhaulage Ltd | Transport & logistics | 2025 |
| Hanvit Limited | Real estate | 2002 |
| Happy Hearts Boutique Ltd | Wholesale & retail | 2020 |
| Harbour View Properties Limited | Real estate | 2025 |
| Hardmans Conservatories Limited | Construction | 2015 |
| Harefield Butchers Ltd | Wholesale & retail | 2019 |
| Harris Grange Investments Limited | Real estate | 2016 |
| Harrison Collier Limited | Extraterritorial | 2009 |
| Harwick Properties Ltd | Real estate | 2025 |
| Hawk Controls Limited | Administrative & support | 2008 |
| Hawkvale Limited | Water & waste | 2018 |
| Hazard Property Ltd | Real estate | 2023 |
| Hazel Housing Ltd | Real estate | 2024 |
| HBA Property Group Limited | Real estate | 2024 |
| HCS (NW) Ltd | Professional & scientific | 2004 |
| Healthiness Limited | Arts & recreation | 2011 |
| Healthy Active Lifestyles for ALL CIC | Education | 2025 |
| Healthy Active Lifestyles Ltd | Arts & recreation | 2014 |
| Healthy Active Sports Events Ltd | Arts & recreation | 2022 |
| Heart Space - Wellness Therapies Ltd | Other services | 2021 |
| Heathfield Recruitment Ltd | Administrative & support | 2025 |
| Helen Mason Consulting Ltd | Professional & scientific | 2022 |
| Helping Hands Support and Care Ltd | Health & social care | 2025 |
| Heron Care Limited | Health & social care | 2004 |
| High Temp Limited | Water & waste | 2011 |
| Hime PMO Ltd | Professional & scientific | 2025 |
| Hisham Food Ltd | Hospitality | 2022 |
| HJO Properties Limited | Real estate | 2023 |
| HLW Enterprises Ltd | Administrative & support | 2026 |
| HM Wealth & Investment Limited | Financial services | 2020 |
| Hoffmann Carluchi Limited | Administrative & support | 2020 |
| Hogans Solicitors Limited | Professional & scientific | 2012 |
| Holt Building & Joinery Ltd | Construction | 2010 |
| Holt Lane AJB Limited | Hospitality | 2024 |
| Home Enhancements Ltd | Information & communication | 2018 |
| Home Hotels Commercial Ltd | Hospitality | 2024 |
| Home Textiles Limited | Wholesale & retail | 2025 |
| Homereach Limited | Real estate | 2000 |
| Horizon Skills Group Ltd | Real estate | 2026 |
| Hot Spot Cleaning Ltd | Other services | 2019 |
| House of Monarchs Ltd | Wholesale & retail | 2026 |
| HS Surgery Ltd | Health & social care | 2024 |
| HTI PUB Trading Limited | Hospitality | 2024 |
| Hughlen Ltd | Manufacturing | 2020 |
| HVW Consultants Ltd | Real estate | 2024 |
| I E Legal Solicitors Limited | Professional & scientific | 2012 |
| I-Paye Nominees Limited | Administrative & support | 2008 |
| I.P.S Transport Services Ltd | Transport & logistics | 2025 |
| Icon Events & Productions Limited | Arts & recreation | 2013 |
| Idem Living Ltd | Health & social care | 2007 |
| Identity Protection & Recovery Services Limited | Professional & scientific | 2014 |
| Ignition Enterprises Limited | Administrative & support | 2010 |
| IJK Tubetech Limited | Administrative & support | 2012 |
| Imagine a Cafe Ltd | Hospitality | 2024 |
| Imagine Futures CIC | Education | 2024 |
| Imaging Diagnostics Limited | Health & social care | 2021 |
| Impressions Art Ltd | Wholesale & retail | 2024 |
| Incentax Ltd | Professional & scientific | 2026 |
| Ingham & Garner Limited | Construction | 1974 |