| Hipperholme News Limited | Wholesale & retail | 2003 |
| Hirst Electrical Plant Hire Services (UK) Limited | Manufacturing | 1998 |
| Hirst Homes Limited | Households | 2006 |
| HM Investigations Limited | Administrative & support | 2003 |
| Hoffmann's (Bradford) Limited | | 1987 |
| Holden Gate (Investments) Limited | Professional & scientific | 2003 |
| Hollins Management Limited | Agriculture & fishing | 2005 |
| Holme Styes Holdings Limited | Professional & scientific | 1995 |
| Home Recycling Limited | Wholesale & retail | 2004 |
| Homes 2 Go Limited | Other services | 2003 |
| Hopes Newsagents Limited | Wholesale & retail | 2004 |
| Horizionpulsventures Ltd | Wholesale & retail | 2025 |
| Housecroft Scaffolding Limited | Construction | 2022 |
| Household Linens.Com Limited | Wholesale & retail | 2004 |
| Howarth Timber & Building Supplies Limited | Manufacturing | 1924 |
| Howarth Timber (Corby) Limited | Professional & scientific | 1960 |
| Howarth Timber Group Limited | Professional & scientific | 1900 |
| Hoyer Container Rental UK Limited | Financial services | 1992 |
| Hoyer UK Limited | Transport & logistics | 1992 |
| HPC Purchasing Services Ltd | Professional & scientific | 2006 |
| HR Success 2 Limited | Administrative & support | 2002 |
| HS Travel & Tours Ltd | Administrative & support | 2002 |
| Hsdl Nominees Limited | Extraterritorial | 1988 |
| Huddcor Limited | Administrative & support | 1983 |
| Huddersfield Ancillaries Limited | Professional & scientific | 2003 |
| Huddersfield Decorators Merchants Limited | Wholesale & retail | 2003 |
| Huddersfield Specsavers Limited | Wholesale & retail | 1992 |
| Huddersfield Visionplus Limited | Wholesale & retail | 1992 |
| Hudson Conway (Leeds) Ltd | Professional & scientific | 2006 |
| Hughes Chemists (Northern) Limited | Wholesale & retail | 1999 |
| Human Help Worldwide Limited | Health & social care | 2008 |
| Hungate (York) Regeneration Limited | Construction | 2001 |
| Hunslet Minimarket Limited | Wholesale & retail | 2003 |
| Hunter Transport Services Limited | Transport & logistics | 2007 |
| HXB Limited | Arts & recreation | 2002 |
| Hyde Hotels Limited | Hospitality | 2005 |
| Hyde Park Properties (Leeds) Limited | Real estate | 1998 |
| Hydraulic Models Limited | Professional & scientific | 2005 |
| I-Care Specialists Ltd | Professional & scientific | 2008 |
| I.C.S. (UK) Limited | Wholesale & retail | 1998 |
| I.V.S International Limited | Water & waste | 2000 |
| I4 Events Limited | Professional & scientific | 2005 |
| IAN Super Whippy Limited | Arts & recreation | 2006 |
| Iberian Property Management (Malaga) Limited | Professional & scientific | 1996 |
| Ibrahim and Adam Limited | Health & social care | 2006 |
| IHC Services Limited | Construction | 2006 |
| IHT Solutions Limited | Information & communication | 2007 |
| Ilkley Players Limited | Arts & recreation | 2001 |
| Ilkley Toy Museum Limited | Arts & recreation | 1997 |
| Illingworth Mcnair Limited | Financial services | 1972 |
| Imise Limited | Professional & scientific | 2003 |
| Impm Limited | Information & communication | 2006 |
| Imported Cast Products Limited | Professional & scientific | 2004 |
| IN House Marketing Limited | Professional & scientific | 2002 |
| Ina-Imp Limited | Wholesale & retail | 1977 |
| Independent Electrical Services Limited | Wholesale & retail | 1988 |
| Industrial Engine Specialists Ltd | Wholesale & retail | 2020 |
| Industrial Safety Consultants Limited | Professional & scientific | 2006 |
| Infinity Hairdressing Ltd | Other services | 2003 |
| Ingrow Estates Limited | Real estate | 2004 |
| Innovas Solutions Ltd | Professional & scientific | 2006 |
| Insha Limited | Hospitality | 2006 |
| Inspired Childcare (Bradford) Ltd | Education | 2024 |
| Instant Availability Limited | Administrative & support | 2006 |
| Intercity Travel Limited | Transport & logistics | 2005 |
| Interface Interior Fabrics (UK) Limited Partnership | | 1997 |
| Interior Stone Designs Limited | Manufacturing | 2003 |
| Interior Transformations Limited | Construction | 2005 |
| International Trade Agency Limited | Wholesale & retail | 2001 |
| ION Originals Limited | Information & communication | 2006 |
| ISE Computer Solutions Limited | Information & communication | 2003 |
| Ishitas Ltd | Wholesale & retail | 2004 |
| Ison Harrison Limited | Professional & scientific | 2008 |
| IT Ejoy Limited | Information & communication | 2005 |
| Italik Limited | Information & communication | 1999 |
| Itec Components Limited | Agriculture & fishing | 2001 |
| J & J Davies Plant & Commercial Limited | Manufacturing | 2001 |
| J & M Real Estate Limited | Real estate | 2001 |
| J a Oldroyd & Sons Limited | Professional & scientific | 2005 |
| J H Kennedy Decorators Ltd | Construction | 2008 |
| J L Transport Limited | Transport & logistics | 2003 |
| J P Marsden Construction Limited | Construction | 2005 |
| J Page Developments Ltd | Construction | 2022 |
| J S Joinery and Construction Limited | Construction | 2007 |
| J&T Thompson Ltd. | Manufacturing | 1997 |
| J. I. Scaffolding Limited | Construction | 2005 |
| J. L. Beckett Limited | Water & waste | 2003 |
| J. Thompson (INT.) Limited | Information & communication | 1989 |
| J.B. Hoyle & Co. Limited | | 1944 |
| J.D. Groundworks (Yorkshire) Limited | Construction | 2002 |
| J.G. Harrison & Sons Limited | Wholesale & retail | 1985 |
| J.M. Hunt & Co. (Normanton) Limited | Wholesale & retail | 1977 |
| J.R. Cauldwell and Sons Limited | Wholesale & retail | 1979 |
| J.S.Morton & Sons Limited | Agriculture & fishing | 1965 |
| J.T. Entertainment Limited | Hospitality | 2006 |
| J.T.S. GAS and Electrical Limited | Manufacturing | 2002 |
| Jaat Travels Ltd | Transport & logistics | 2026 |
| Jack Lane Originals Ltd | Other services | 1997 |
| Jackson Fasteners Limited | Manufacturing | 1982 |
| Jade Strategies Limited | Construction | 2004 |