| GRS Integrated Solutions Limited | Mining & quarrying | 2000 |
| GRS Paving Ltd | Construction | 2023 |
| GRS Production & Logistics Holdings Limited | Mining & quarrying | 2006 |
| GRS Recycling Solutions Ltd | Construction | 2021 |
| GRS Roadstone Group Limited | Mining & quarrying | 2014 |
| GRS Roadstone Holdings Limited | Mining & quarrying | 2004 |
| GRS Stone Supplies Limited | Wholesale & retail | 2016 |
| GS Legal Consultants Ltd | Professional & scientific | 2024 |
| GS UK Transport Ltd | Transport & logistics | 2018 |
| GS13 Ltd | Construction | 2025 |
| GSD Training Ltd | Education | 2013 |
| GSR Group Holdings Ltd | Real estate | 2022 |
| GT Property Holdings Ltd | Real estate | 2025 |
| GTS Car Club Ltd | Administrative & support | 2023 |
| Guard SEC Management Limited | Administrative & support | 2019 |
| Guardians Grow Enterprises Ltd | Wholesale & retail | 2025 |
| Gudger Enterprises Limited | Real estate | 2023 |
| Guiding YOU Limited | Administrative & support | 2005 |
| Gurkha Property Solutions Ltd | Real estate | 2020 |
| Guru Oscar Limited | Wholesale & retail | 2025 |
| Gurung Boiler Specialist Limited | Construction | 2017 |
| Gurveen Optical Ltd | Health & social care | 2022 |
| Guzz 75 Transport Ltd | Transport & logistics | 2015 |
| GVS Holdco Ltd | Financial services | 2024 |
| Gym Art Ltd | Wholesale & retail | 2022 |
| Gym Services Ltd | Extraterritorial | 2018 |
| GZS Nuneaton Ltd | Real estate | 2025 |
| H & H Build Ltd | Construction | 2018 |
| H Brothers Ltd | Construction | 2015 |
| H K Stevenson Ltd | Professional & scientific | 2023 |
| H P 10 Limited | Manufacturing | 2016 |
| H Plus Midlands Ltd | Real estate | 2023 |
| H Xpression Beauty Saloon Ltd | Other services | 2025 |
| H&H PUB Co Ltd | Hospitality | 2026 |
| H&H the Tiles Company Limited | Wholesale & retail | 2020 |
| H2 Wealth Management Limited | Financial services | 2020 |
| H2O Heating and Plumbing Solutions Ltd | Construction | 2018 |
| HA Tech Solutions Limited | Information & communication | 2014 |
| Habitus Nuneaton Limited | Construction | 2006 |
| Habitus Property Investments Limited | Real estate | 2024 |
| Haiban House Ltd | Wholesale & retail | 2014 |
| Hair by Robert Limited | Other services | 2012 |
| Haitham Health Care Limited | Health & social care | 2016 |
| Halalpmf Ltd | Manufacturing | 2023 |
| Halcyon Engineering Limited | Professional & scientific | 2024 |
| Halex Finishing Limited | Manufacturing | 2015 |
| Haley Financial Services Limited | Financial services | 2004 |
| Haley Heath Coaching and Consulting Ltd | Professional & scientific | 2021 |
| Hall Building Services Limited | Construction | 2018 |
| Hall Farm (Orton on the Hill) Management Company Limited | Households | 2024 |
| Hall Farm Dadlington Limited | Hospitality | 2011 |
| Halls Metal Recycling Ltd | Wholesale & retail | 2025 |
| Halo Haircare Ltd | Other services | 2022 |
| Halo News Limited | Wholesale & retail | 2018 |
| Halo Training Solutions Limited | Education | 2024 |
| HAM Superspeed Ltd | Transport & logistics | 2018 |
| Hambridge Transport Limited | Transport & logistics | 2003 |
| Hames Partnership Limited | Professional & scientific | 2003 |
| Hamilton’S Taverns Ltd | Hospitality | 2026 |
| Hammersley HR Consultancy Ltd | Professional & scientific | 2025 |
| Hamzali Ltd | Construction | 2020 |
| Handy Fitters Ltd | Construction | 2020 |
| Haneko Limited | Wholesale & retail | 2021 |
| Hannah Badge Ltd | Professional & scientific | 2023 |
| Hannmor Ltd | Professional & scientific | 2024 |
| Happi Properties Ltd | Real estate | 2025 |
| Happy Clients Ltd | Professional & scientific | 2024 |
| Happy Marketer Limited | Administrative & support | 2020 |
| Harcumen Global Enterprises Limited | Wholesale & retail | 2024 |
| Harefield Subs Ltd | Wholesale & retail | 2023 |
| Harlo Power Ltd | Manufacturing | 2026 |
| Harmonious Ltd | Administrative & support | 2021 |
| Harmoniz Properties Ltd | Extraterritorial | 2024 |
| Harris & Sons Brickwork Limited | Construction | 2025 |
| Harris Gauges Limited | Professional & scientific | 2020 |
| Harris Watts Properties Ltd | Real estate | 2018 |
| Harrison-Randall Limited | Manufacturing | 1997 |
| Harrow Project Services Limited | Construction | 2011 |
| Harry Shaw Business Computers Ltd | Information & communication | 1998 |
| Hartmore Trading Ltd | Wholesale & retail | 2024 |
| Hartshill Developments Ltd | Construction | 2026 |
| Hartshill Oak Limited | Hospitality | 2023 |
| Harveys Haulage (Midlands) Ltd | Transport & logistics | 2024 |
| HAS to Bean Ltd | Hospitality | 2021 |
| Hashtag Marketing Consultancy Ltd | Administrative & support | 2015 |
| Hassall GAS Services Ltd | Construction | 2025 |
| Haunchwood Properties Limited | Real estate | 2024 |
| Haunchwood Sports Junior Football Club Limited | Arts & recreation | 2025 |
| Haures Solution Limited | Transport & logistics | 2020 |
| Hawcutt Drive Management Limited | Real estate | 2017 |
| Hawk Property Maintenance Solutions Ltd | Administrative & support | 2023 |
| Hawkins Court (Huntingdon) RTM Company Ltd | Households | 2018 |
| Hayloft Consulting Ltd | Professional & scientific | 2020 |
| Haynes Consulting Limited | Administrative & support | 2007 |
| HBH Commerce Limited | Professional & scientific | 2025 |
| HBK Trading Ltd | Wholesale & retail | 2024 |
| HBO (UK) Limited | Wholesale & retail | 2008 |
| HD Cuisine Limited | Hospitality | 2020 |
| HD Fitting Limited | Wholesale & retail | 2025 |
| HD Landscapes and Grab Hire Ltd | Extraterritorial | 2025 |