| HD Technical Consulting Ltd | Professional & scientific | 2025 |
| Health, Inclusion, Valuing Everyone - South Bradford CIC | Arts & recreation | 2025 |
| Healthpharm Yorkshire Limited | Wholesale & retail | 2012 |
| Heath Hirst Landscapes Limited | Administrative & support | 2024 |
| Heathy Park Homes Limited | Construction | 2018 |
| Heaven Scent Cleaning (UK) Limited | Administrative & support | 2010 |
| Hebble Motor Services Ltd | Transport & logistics | 2016 |
| Heffernan Construction Limited | Manufacturing | 2022 |
| Heffernan Enterprise Limited | Financial services | 2022 |
| Heidi Battersea Limited | Extraterritorial | 2019 |
| Hello Marketing Limited | Other services | 2019 |
| Henmarsh Consultants Limited | Professional & scientific | 2021 |
| Henrys ARK Management Consultants Ltd | Professional & scientific | 2017 |
| Hepworth Framework Limited | Construction | 1989 |
| Hice Wellness Limited | Health & social care | 2024 |
| High Barn Consultants Limited | Professional & scientific | 2015 |
| Highbury Homes (Yorkshire) Limited | Construction | 2001 |
| Highfield Newsagents (Yorkshire) Limited | Wholesale & retail | 2014 |
| Highton Consultancy Ltd | Health & social care | 2009 |
| Higson Security Limited | Administrative & support | 2021 |
| Hilden Properties Limited | Real estate | 2026 |
| Hilton Slush Limited | Manufacturing | 2016 |
| Himalaya Group Ltd | Hospitality | 2023 |
| Hipperholme & Lightcliffe Day Nurseries Limited | Education | 2009 |
| HL Accounts Ltd | Professional & scientific | 2026 |
| HLC Academy Limited | Education | 2010 |
| Hobb-Ease Limited | Wholesale & retail | 2023 |
| Hockeridge Consultants Limited | Real estate | 2024 |
| Holistic Mind Limited | Health & social care | 2026 |
| Holme LEA Consultancy Limited | Professional & scientific | 2020 |
| Home and Garden Bargains Ltd | Wholesale & retail | 2013 |
| Home Improvement Supplies Limited | Wholesale & retail | 2005 |
| Hopton Properties Limited | Real estate | 2001 |
| Hopwood Construction Ltd | Construction | 2006 |
| Hot Property Group Ltd. | Real estate | 2017 |
| Hot Tile EOT Limited | Administrative & support | 2023 |
| Hot Tile Importers Ltd | Wholesale & retail | 2013 |
| House of Sparklez U.K Ltd | Wholesale & retail | 2018 |
| HPK Professional Services Limited | Professional & scientific | 2019 |
| HPS Yorkshire Ltd | Professional & scientific | 2023 |
| HRE Consultancy Ltd | Professional & scientific | 2026 |
| Huddersfield Leather Goods Limited | Manufacturing | 1976 |
| Huddersfield Pallets (Huddersfield) Limited | Manufacturing | 2015 |
| Huddersfield Properties Limited | Real estate | 2018 |
| Human-Hr Ltd | Administrative & support | 2011 |
| Hunt 4 Homes Limited | Real estate | 2009 |
| Hydra Commercial Vehicles Limited | Manufacturing | 2021 |
| Hydrate IT Ltd | Information & communication | 2013 |
| I AM Secure Ltd | Administrative & support | 2020 |
| I Repair Guys Limited | Manufacturing | 2025 |
| I Taxi EXE Ltd | Transport & logistics | 2018 |
| I Wood Engineering Ltd | Manufacturing | 2015 |
| I&H Investment Ltd | Real estate | 2025 |
| Ibifem Ltd | Professional & scientific | 2026 |
| Ibiza International Entertainment Ltd | Arts & recreation | 2025 |
| Ignition Driver Recruitment Limited | Administrative & support | 2024 |
| IH Alliance Limited | Real estate | 2025 |
| IJM Homes & Properties Ltd | Real estate | 2023 |
| IKH Estates Ltd | Real estate | 2026 |
| Imagine NO Limits CIC | Arts & recreation | 2025 |
| IN House Kitchen Designs Limited | Manufacturing | 2019 |
| IN the Company of Leaders Ltd | Administrative & support | 2019 |
| Industrial Pipework Solutions Limited | Construction | 1998 |
| Influx Lighting Ltd | Professional & scientific | 2020 |
| Ingenious Windows Ltd | Construction | 2024 |
| Inimitably Ltd | Other services | 2011 |
| INK Ctrl Ltd | Other services | 2019 |
| Inland Sites Limited | Construction | 1996 |
| Innotin Ltd | Wholesale & retail | 2025 |
| Insight Homecare Ltd | Health & social care | 2025 |
| Interiors by Palmer Limited | Construction | 2022 |
| Intospeech Limited | Health & social care | 2016 |
| Invest in Place (MCR) Limited | Professional & scientific | 2023 |
| Involve ME Digital Health Ltd | Professional & scientific | 2020 |
| It’S NOT TOO Late CIC | Education | 2026 |
| J & S Brooksbank LLP | | 2006 |
| J B Holdings (Trading) Limited | Professional & scientific | 2007 |
| J C C Inspire LLP | | 2012 |
| J Caine Holdings Ltd | Financial services | 2025 |
| J&R Patrick Ltd | Real estate | 2019 |
| J. & E. Computers Limited | Wholesale & retail | 1997 |
| J. Bees Millinery Wholesaler Ltd | Wholesale & retail | 2008 |
| J. Blakeborough & Sons Ltd. | Extraterritorial | 1991 |
| J.B. Henry & Sons Limited | Construction | 2008 |
| J.B. Hill & Sons Limited | Construction | 1972 |
| J.C.Bates & Sons Limited | Real estate | 1941 |
| J.W.Lister Limited | Financial services | 1947 |
| J3 Plumbing and Heating Ltd | Construction | 2011 |
| JAC (Christchurch) Limited | Real estate | 2012 |
| Jack and Jill Bath Co Ltd | Wholesale & retail | 2019 |
| Jaco Properties Ltd. | Administrative & support | 2019 |
| Jameson Leigh Limited | Professional & scientific | 2021 |
| Jarvis International Flooring Consultants Ltd | Professional & scientific | 2024 |
| JAS Uaine Ltd | Professional & scientific | 2020 |
| Jawahar Sarin Ltd | Real estate | 2015 |
| Jaybee Biker Bits Limited | Wholesale & retail | 2012 |
| Jays Bar Ltd | Hospitality | 2023 |
| Jazz North | Arts & recreation | 2013 |
| JCG Estates Limited | Real estate | 2024 |
| JDC Agencies Limited | Wholesale & retail | 2006 |