| Halifax Pipework Services Ltd | Manufacturing | 2015 |
| Halifax Plant and Machinery Painting Ltd | Manufacturing | 2021 |
| Halifax Plumbers Merchants Limited | Wholesale & retail | 2013 |
| Halifax Precision Engineering Ltd | Professional & scientific | 2018 |
| Halifax Prestige Motors Ltd | Wholesale & retail | 2019 |
| Halifax Property Lettings Ltd | Households | 2020 |
| Halifax Property Limited | Real estate | 2024 |
| Halifax Property Maintenance Ltd | Real estate | 2022 |
| Halifax Property Rentals Ltd | Real estate | 2015 |
| Halifax Property Services Limited | Real estate | 2025 |
| Halifax RAW Feeds Ltd | Wholesale & retail | 2023 |
| Halifax RE Limited | Construction | 2015 |
| Halifax Reclaimed Stone Sales Ltd | Wholesale & retail | 2026 |
| Halifax Recruitment Ltd | Information & communication | 2025 |
| Halifax Roofing & Building Service Ltd | Construction | 2022 |
| Halifax Rugby League Football Club Limited | Arts & recreation | 2003 |
| Halifax Scaffolding Services Limited | Construction | 2012 |
| Halifax Security Centre Limited | Professional & scientific | 1988 |
| Halifax Share Dealing Limited | Financial services | 1996 |
| Halifax Sheet Metal & Ventilation Limited | Manufacturing | 1992 |
| Halifax Socialist Halls Limited | Hospitality | 1915 |
| Halifax SOL Centre Ltd | Hospitality | 2024 |
| Halifax Steam Brewing Company Limited | Manufacturing | 2002 |
| Halifax Stone Sales Ltd | Manufacturing | 2016 |
| Halifax Superstore Ltd | Wholesale & retail | 2024 |
| Halifax Telecom Ltd | Wholesale & retail | 2020 |
| Halifax Thespians | Education | 2004 |
| Halifax Travel Centre Limited | Transport & logistics | 2015 |
| Halifax Truck & Van Hire Limited | Professional & scientific | 2000 |
| Halifax Unity CIC | Other services | 2022 |
| Halifax Valeting & Car Wash Limited | Administrative & support | 2024 |
| Halifax Valeting Centre Ltd | Administrative & support | 2025 |
| Halifax Vehicle Solutions Limited | Wholesale & retail | 2024 |
| Halifax Water SKI Club Limited | Arts & recreation | 1982 |
| Halifax Windscreens Limited | Wholesale & retail | 2012 |
| Halifax Woodshop Limited | Construction | 2004 |
| Halisey Ltd | Other services | 2011 |
| Hallidays Properties Ltd | Real estate | 2026 |
| Halls (Halifax) Properties Limited | Real estate | 2023 |
| Halls Decorating and Painting Contractors Limited | Construction | 2005 |
| Halls Projects and Developments Ltd | Financial services | 2023 |
| Halls Reactive Maintenance Limited | Administrative & support | 2016 |
| Halo & Baines Limited | Other services | 2015 |
| Hamafi Ltd | Health & social care | 2020 |
| Hambross Ltd | Real estate | 2022 |
| Hamilton Oakmont Limited | Construction | 2017 |
| Hampshire Down Sheep Breeder's Association(The) | Agriculture & fishing | 1890 |
| HAN Law Co Ltd | Professional & scientific | 2019 |
| Hanby Services Limited | Professional & scientific | 2019 |
| Hanco Engineering Ltd | Professional & scientific | 2023 |
| Handley Builders Ltd | Construction | 2018 |
| Hands on Cjlh Ltd | Financial services | 2024 |
| Handyhive 123 Ltd | Wholesale & retail | 2026 |
| Hankin Investments Limited | Financial services | 2021 |
| Hanson & Beards (Holdings) Limited | Financial services | 2019 |
| Hanson & Beards Limited | Manufacturing | 1985 |
| Hanson Lane Mini Market Ltd | Wholesale & retail | 2022 |
| Hanson Lane MOT Centre Limited | Professional & scientific | 2026 |
| Hanson Plywood (Holdings) Ltd | Professional & scientific | 1998 |
| Hanson Plywood Group Ltd | Financial services | 2024 |
| Hanson Plywood Limited | Wholesale & retail | 1938 |
| Hanson Property Consultants Limited | Real estate | 2004 |
| Happy China Noodle Bar Limited | Hospitality | 2025 |
| Happy Days Project Management Ltd | Information & communication | 2026 |
| Happy Happy Hounds Ltd | Other services | 2018 |
| Happy House (Halifax) Ltd | Hospitality | 2025 |
| Happy Paws Day Care Centre Ltd | Agriculture & fishing | 2020 |
| Happy Star 888 Ltd | Hospitality | 2024 |
| Happy Valley Decorating Limited | Construction | 2010 |
| Happy Valley Systems Limited | Information & communication | 2026 |
| Haqqani Properties Ltd | Real estate | 2026 |
| Hardd Trade Ltd | Information & communication | 2026 |
| Harebell Heith Ltd | Wholesale & retail | 2024 |
| Harewood Consultancy & Management Ltd | Information & communication | 2024 |
| Harison Transport Ltd | Transport & logistics | 2022 |
| Harmonised Electrical Services Limited | Construction | 2007 |
| Harmony Homes Limited | Construction | 1967 |
| Harmony Medical Aesthetics Ltd | Health & social care | 2021 |
| Harmony Skin Limited | Wholesale & retail | 2023 |
| Harog Holdings 2025 Ltd | Professional & scientific | 2025 |
| Harog Limited | Wholesale & retail | 2006 |
| Haroon Hassan Ltd | Wholesale & retail | 2026 |
| Harrison Paraplanning Services Ltd | Administrative & support | 2024 |
| Harrison Property Solutions Ltd. | Construction | 2011 |
| Harrison Welding Services Ltd | Manufacturing | 2015 |
| Harrogate Cafe Ltd | Hospitality | 2026 |
| Harrogate Dales Limited | Professional & scientific | 2023 |
| Harry's Grill House Ltd | Hospitality | 2023 |
| Harrys Grill Ltd | Hospitality | 2026 |
| Hart Controls Ltd | Professional & scientific | 2026 |
| Hartley & Betts Electrical Contractors Limited | Construction | 2021 |
| Hartley Property Services (Shelf) Limited | Real estate | 2014 |
| Hartley Property Services Limited | Construction | 2021 |
| Hartrose Limited | Other services | 2021 |
| Hartwell Towers Limited | Wholesale & retail | 2025 |
| Harveys Yard Holdings Ltd | Real estate | 2026 |
| Harwin Close Management Limited | Real estate | 2010 |
| Haswell Hollow Ltd | Wholesale & retail | 2025 |
| Haswest Ltd | Hospitality | 2025 |
| Hatch Brunch House Ltd | Hospitality | 2022 |