| Happy Paws (2018) Limited | Wholesale & retail | 2018 |
| Happy Waggers and Sleepy Whiskers Ltd | Other services | 2023 |
| Happycafe Ltd | Hospitality | 2025 |
| Happyface Events Limited | Arts & recreation | 2024 |
| Happynest Properties Ltd | Real estate | 2024 |
| HAQ Transport Ltd | Transport & logistics | 2020 |
| Haraka Logistic UK Ltd | Wholesale & retail | 2023 |
| Harborgate Ltd | Wholesale & retail | 2025 |
| Harco Limited | Hospitality | 2016 |
| Hardingswood Residents Association Limited | Real estate | 1996 |
| Hardwire HR Ltd | Information & communication | 2024 |
| Harecastle Carpets Limited | Wholesale & retail | 2009 |
| Harecastle Inn Ltd | Hospitality | 2016 |
| Harecastle Mews Limited | Extraterritorial | 2010 |
| Harekrsna Limited | Health & social care | 2018 |
| Harfield Holdings Limited | Real estate | 2020 |
| Hargo Ltd | Construction | 2023 |
| Hargreaves Express Ltd | Transport & logistics | 2026 |
| Hari Engineering Ltd | Construction | 2023 |
| Harisbinshakeel Ltd | Manufacturing | 2024 |
| Harkis House Ltd | Households | 2023 |
| Harkis HOUSE1 Ltd | Hospitality | 2024 |
| Harki’S Limited | Wholesale & retail | 2019 |
| Harley's Aesthetics Limited | Other services | 2019 |
| Harling Properties Limited | Real estate | 2024 |
| Harmoniance Ltd | Professional & scientific | 2006 |
| Harmony Construction Services Limited | Construction | 2018 |
| Harmony Homes Seed Capital LLP | | 2013 |
| Harmony Hosting Ltd | Real estate | 2024 |
| Harpers Carlisle Limited | Real estate | 1990 |
| Harpers House to Homes Ltd | Construction | 2025 |
| Harpfield MOT Centre Ltd | Professional & scientific | 2026 |
| Harpurs Development Ltd | Construction | 2025 |
| Harrier Freight Services Limited | | 1980 |
| Harries Investment Company Limited | Administrative & support | 2021 |
| Harrison Builders (Betley) Limited | Construction | 1987 |
| Harrison Carpets Ltd | Wholesale & retail | 2014 |
| Harrison Engineering (Leek) Limited | Manufacturing | 2009 |
| Harry and Conway Limited | Wholesale & retail | 2024 |
| Harry Dawson Funeral Services Limited | Other services | 2022 |
| Harry J'S Ltd | Manufacturing | 2021 |
| Harshaa Stoke Limited | Wholesale & retail | 2025 |
| Harsue Investments Ltd | Financial services | 2026 |
| Hart Electrical Contractors Ltd | Construction | 2017 |
| Hart Memorials Limited | Manufacturing | 2003 |
| Hartshill Management Ltd | Financial services | 2021 |
| Hartshorn Hook Enterprises Limited | Arts & recreation | 2007 |
| Hartwell Consulting Ltd | Professional & scientific | 2014 |
| Hartwell Investment Holdings Limited | Real estate | 2025 |
| Harvest Horizon Farm Ltd | Agriculture & fishing | 2025 |
| Harvey Joinery Services Ltd | Construction | 2019 |
| Harvey Tree Services Ltd | Agriculture & fishing | 2022 |
| Hasan Kaya Ltd | Wholesale & retail | 2025 |
| Hashim and Brothers Building Solutions Limited | Manufacturing | 2025 |
| Hashup Digital Ltd | Information & communication | 2025 |
| Hasjm Holding Ltd | Financial services | 2026 |
| Hasjm Properties Ltd | Real estate | 2026 |
| Hasjm Trading Ltd | Wholesale & retail | 2026 |
| Haskell and Reddy Limited | Financial services | 2011 |
| Haslegrave Electrical Solutions Ltd | Construction | 2026 |
| Hassett Electrical Ltd | Construction | 2021 |
| Hatfield Crescent 1960 Limited | Extraterritorial | 2014 |
| Hatz Transport Ltd | Transport & logistics | 2019 |
| Haulageuk Ltd | Transport & logistics | 2021 |
| Haulfy Logistics Ltd | Transport & logistics | 2025 |
| Haunted Houses Events Ltd | Arts & recreation | 2019 |
| Haus+ Ltd | Real estate | 2024 |
| Hav-It Ltd | Information & communication | 2014 |
| Havana Station Limited | Wholesale & retail | 2020 |
| Haven Elite Group Limited | Real estate | 2023 |
| Haven Healthcare Services Limited | Health & social care | 2020 |
| Havenstone Group Ltd | Real estate | 2025 |
| Haventech Limited | Wholesale & retail | 2024 |
| Havic Limited | Wholesale & retail | 2021 |
| Hawbash Stoke Ltd | Wholesale & retail | 2025 |
| Hawi Ltd | Health & social care | 2025 |
| Hawksan Limited | Wholesale & retail | 2020 |
| Haya Superstore Stoke Limited | Wholesale & retail | 2025 |
| Hayat Supermarket Ltd | Wholesale & retail | 2018 |
| Hayati One Trading Ltd | Wholesale & retail | 2026 |
| Hayes Garden Landscaping Ltd | Administrative & support | 2017 |
| Hayley and Paul Rimmer Limited | Real estate | 2024 |
| Hazel Delight Ltd | Wholesale & retail | 2024 |
| Hazpack Ltd | Water & waste | 2026 |
| HBS Securities Ltd | Administrative & support | 2024 |
| HC 24/7 Express Limited | Health & social care | 2024 |
| HC24 Care Ltd | Professional & scientific | 2023 |
| HC24 Limited | Health & social care | 2016 |
| HC24 PVT Ltd | Health & social care | 2026 |
| HC365 PVT Ltd | Health & social care | 2024 |
| HCD Designed Limited | Professional & scientific | 2019 |
| HD Financial Services Ltd | Financial services | 2019 |
| HD Property Maintenance (NW) Limited | Construction | 2019 |
| HD Will Services Ltd | Professional & scientific | 2024 |
| Hdcl Holdings Limited | Financial services | 2020 |
| HE Takeaway 888 Ltd | Hospitality | 2024 |
| Head Dent Ltd | Wholesale & retail | 2024 |
| Head First Counselling Ltd | Health & social care | 2017 |
| Head for Sport Limited | Professional & scientific | 2025 |
| Head-On Promotions Ltd | Hospitality | 2013 |