| Gurnam Singh Ltd | Extraterritorial | 2025 |
| Gurunanak Pizza Limited | Hospitality | 2026 |
| GUY Cooper Consulting Limited | Professional & scientific | 2025 |
| GW Integral Holdings Ltd | Financial services | 2019 |
| Gyimah Nanny Services Ltd | Health & social care | 2024 |
| Gym Axis Ltd | Information & communication | 2026 |
| H M D Investments Limited | Financial services | 2013 |
| H Squared Consultancy Ltd | Professional & scientific | 2019 |
| H&P Commercial Investments Ltd | Real estate | 2021 |
| H'S Bespoke Designs Ltd | Construction | 2021 |
| H. Mason (Joinery & Supplies) Limited | Real estate | 1967 |
| H. R. Geary Supplies Limited | Wholesale & retail | 1997 |
| H.A.Mason(Metals)Limited | Extraterritorial | 1960 |
| H.B.Caterers Limited | Construction | 1947 |
| H.C. Daly Limited | Construction | 1972 |
| H.E. Capital Limited | Information & communication | 2015 |
| H.J.Cooper Holdings Limited | Wholesale & retail | 1979 |
| H.W. Stockley and Sons Limited | Professional & scientific | 1980 |
| H.Y.P.E Helping Young People Excel CIC | Education | 2026 |
| H20 Birmingham Limited | Administrative & support | 2018 |
| H20 MS Ltd | Administrative & support | 2013 |
| H20 WF London Limited | Administrative & support | 2023 |
| HA Recruitment Ltd | Administrative & support | 2026 |
| Haalim Ltd | Wholesale & retail | 2025 |
| Haaris & Co. Accountants Ltd | Other services | 2022 |
| Habibi Haven Relief Limited | Other services | 2026 |
| Habit & Home Ltd | Wholesale & retail | 2025 |
| Hackett Brothers Limited | Professional & scientific | 2015 |
| Haden Properties Ltd | Real estate | 2005 |
| Hafod Y Green Care Ltd | Health & social care | 2003 |
| Hagley Funeral Services Limited | Professional & scientific | 2000 |
| Hahkem Services Limited | Health & social care | 2025 |
| HAI & D Ltd | Real estate | 2025 |
| Hair & Co (Hagley) Limited | Other services | 2007 |
| Hair and Hounds Grooming Studio Limited | Other services | 2025 |
| Hales Valley Trust | Education | 2016 |
| Halesowen Blinds Ltd | Manufacturing | 2023 |
| Halfway Logistics Ltd | Wholesale & retail | 2026 |
| Hall ST Developments Limited | Construction | 2023 |
| Halland House Limited | Health & social care | 2021 |
| Halsmith Limited | Administrative & support | 1970 |
| Halwayne Limited | Transport & logistics | 2025 |
| Hamadani Holdings Ltd | Financial services | 2025 |
| Hamer Transport Ltd. | Transport & logistics | 2014 |
| Hammer Build Ltd | Construction | 2025 |
| Hammond Holdings and Investments Ltd | Financial services | 2026 |
| Hamp Flooring (1998) Limited | Construction | 1998 |
| Hampton Fencing and Gates Limited | Manufacturing | 2022 |
| Hamstead Property Holdings Limited | Financial services | 2021 |
| Hana House Ltd | Construction | 2023 |
| Hanasofia Limited | Financial services | 2022 |
| Hanleigh Consultants Ltd | Professional & scientific | 2024 |
| Hanley Tippers Limited | Transport & logistics | 2024 |
| Happyhouses Cleaning Services Limited | Administrative & support | 2019 |
| Haque Property Group Limited | Real estate | 2024 |
| Harborne Developments Limited | Professional & scientific | 2001 |
| Hardhorn Partners Limited | Health & social care | 2021 |
| Hargee Properties Limited | Real estate | 2024 |
| Harihara Legacy Limited | Real estate | 2025 |
| Harker Homes (Bromford) Limited | Construction | 2015 |
| Harker Homes (Kings Heath) Limited | Construction | 2014 |
| Harker Homes (Netherton) Ltd | Construction | 2018 |
| Harker Homes (Walsall Woods) Limited | Construction | 2019 |
| Harker Homes Limited | Construction | 2014 |
| Harker Homes NO 1 Limited | Real estate | 2016 |
| Harkerfox Ltd | Information & communication | 2026 |
| Harleys Surfacing Limited | Construction | 2021 |
| Harmony PM Ltd | Professional & scientific | 2026 |
| Harmony Residential Limited | Real estate | 2025 |
| Harmony Village Family Support CIC | Education | 2021 |
| Harper Homes & Sons Ltd | Real estate | 2020 |
| Harper Homes Great Bridge Ltd | Construction | 2025 |
| Harper Homes Penn Ltd | Construction | 2023 |
| Harper Public Houses Ltd | Hospitality | 2025 |
| Harper Smith Holdings Ltd | Financial services | 2025 |
| Harper Smith Properties Ltd | Real estate | 2025 |
| Harper's Homes Management Limited | Real estate | 2016 |
| Harpers Homes Holdings Limited | Real estate | 2015 |
| Harris Holdings & Investments Ltd | Financial services | 2025 |
| Harris Home Furnishings Limited | Wholesale & retail | 2003 |
| Harris Homecraft Limited | Wholesale & retail | 2014 |
| Harris Mastics Limited | Construction | 2020 |
| Harrison Dimmack Pipelines Ltd | Energy | 2025 |
| Harrogate International Toy Fair Limited | Other services | 1945 |
| Hartill Fire Prevention Ltd | Public administration | 2017 |
| Hartill Holdings and Investments Ltd | Financial services | 2019 |
| Hartill Properties Ltd | Real estate | 2019 |
| Hartshill Kennels Limited | Other services | 2023 |
| Harvard Industries Limited | Construction | 2000 |
| Harvey & Co Advisory Ltd | Professional & scientific | 2026 |
| Harvey & Co Holdings and Investments Ltd | Financial services | 2022 |
| Harvey & Co Project Management Ltd | Construction | 2022 |
| Harvey & Co Property Investments Ltd | Real estate | 2022 |
| Harvey & Co Staging Ltd | Professional & scientific | 2022 |
| Harvey Constructions B'Ham Ltd | Construction | 2017 |
| Hassan Transport Solutions Limited | Transport & logistics | 2025 |
| Hassel Street Stores Ltd | Wholesale & retail | 2022 |
| Haus Coast+ Limited | Construction | 2025 |
| Haute Agency Ltd | Real estate | 2024 |
| Havdaff Ltd | Wholesale & retail | 2025 |