| HM Energy Consultants Ltd | Professional & scientific | 2026 |
| Hobbyhome International Ltd | Wholesale & retail | 2019 |
| Hobbyprint Limited | Wholesale & retail | 1999 |
| Holi Studios Ltd | Professional & scientific | 2026 |
| Holmes Agricultural Services Limited | Manufacturing | 2015 |
| Holmes Construction Yorkshire Limited | Construction | 2019 |
| Holyrood Farm Limited | Agriculture & fishing | 2024 |
| Home Logistics Limited | Construction | 2026 |
| Home-Start Goole & District | Health & social care | 2004 |
| Homeclean Northern Limited | Administrative & support | 2006 |
| Homeless Hub C.I.C. | Real estate | 2025 |
| Hondabri Ltd | Wholesale & retail | 2026 |
| Hoodlum Films Ltd | Information & communication | 2020 |
| HOP Auctions.Com Limited | Wholesale & retail | 2004 |
| HOP Deals Engineering Limited | Wholesale & retail | 2017 |
| HOP Deals.Com Limited | Extraterritorial | 2011 |
| Hopkinsons Fair Deals Limited | Professional & scientific | 1999 |
| Hopkinsons Fairdeals Remarketing Limited Liability Partnership | | 2008 |
| Horner Scientific Consulting Ltd | Professional & scientific | 2026 |
| Horners Timber Ltd | Wholesale & retail | 2010 |
| Hot Face Sauces Limited | Extraterritorial | 2015 |
| Housecoat Heroes Ltd | Professional & scientific | 2025 |
| Housemates Properties Ltd | Real estate | 2024 |
| Howard Electrical Engineering Ltd | Construction | 2022 |
| Howard White (Builders & Contractors) Limited | Construction | 1977 |
| Howden Action Group Community Interest Company | Education | 2023 |
| Howden Agriculture & Horticulture Show Limited | Arts & recreation | 2011 |
| Howden Animal Health Ltd | Professional & scientific | 2026 |
| Howden Community Stables CIC | Education | 2026 |
| Howden Consultants Limited | Financial services | 2012 |
| Howden GAS Services Limited | Other services | 2022 |
| Howden One Ltd | Hospitality | 2016 |
| Howden Services (UK) Limited | Transport & logistics | 2013 |
| Howden Services Limited | Wholesale & retail | 2002 |
| Howden Transport & Storage Limited | Transport & logistics | 2009 |
| Howden Windows and Doors Ltd | Construction | 2025 |
| Howdens Catering Ltd | Hospitality | 2023 |
| Howson Technical Limited | Manufacturing | 2021 |
| HRH Property Developments Ltd | Construction | 2020 |
| Hsab Limited | Health & social care | 2014 |
| Huddle Goole C.I.C. | Information & communication | 2024 |
| Huddlestone Renewables Limited | Energy | 2013 |
| Hudson Estates & Co.Ltd Limited | Real estate | 2020 |
| Hugo Property and Land Services Ltd | Households | 2025 |
| Hull Properties Limited | Construction | 2004 |
| Humberside Contracting Limited | Extraterritorial | 1989 |
| Hustle Mate Ltd | Education | 2025 |
| HUT Green Garage Ltd | Wholesale & retail | 2019 |
| HUW Forestry Limited | Agriculture & fishing | 2017 |
| HWS Farms Limited | Professional & scientific | 2011 |
| Hygrip International Limited | Wholesale & retail | 2025 |
| Hypnosiauk Ltd | Wholesale & retail | 2025 |
| Hypnoslimmer Limited | Other services | 2011 |
| I R M Housing Ltd | Real estate | 2023 |
| IAN Holt Engineering Limited | Manufacturing | 2001 |
| IAN Mortimer Ltd | Transport & logistics | 2016 |
| Icalaba Properties Ltd | Real estate | 2023 |
| Ican Environmental Ltd | Wholesale & retail | 2019 |
| Ideal Hair Extensions Yorkshire Ltd | Other services | 2025 |
| Ideal Locations Property Management Limited | Real estate | 2010 |
| IDORU3D Limited | Professional & scientific | 2021 |
| IGI Systems Limited | Manufacturing | 2006 |
| Ignite Sports Apparel Ltd | Wholesale & retail | 2023 |
| IGT Ventures Ltd | Manufacturing | 2024 |
| Iheadphones Limited | Wholesale & retail | 2009 |
| Imagentodeveloper Ltd | Information & communication | 2020 |
| Imperium Caninum Limited | Financial services | 2025 |
| Impressive Juices Ltd | Manufacturing | 2015 |
| IN the Canopy C.I.C. | Education | 2021 |
| In-Tune School of Motoring Ltd | Education | 2024 |
| IN2GAS Ltd | Energy | 2015 |
| Inchara Homes Limited | Real estate | 2024 |
| Inchpunch Design Limited | Professional & scientific | 2014 |
| Ingenious PR and Marketing Limited | Professional & scientific | 2020 |
| Inglenook House Estates Limited | Real estate | 2003 |
| Instant Lawns Limited | Administrative & support | 2023 |
| International Logistics Solutions Ltd | Transport & logistics | 2023 |
| International Mini Market (Goole) Ltd | Wholesale & retail | 2023 |
| Investment and Property Services Limited | Construction | 2006 |
| Involvement Packing Limited | Manufacturing | 1975 |
| Iosifpetcu Ltd | Wholesale & retail | 2025 |
| ISA Yorkshire Ltd | Other services | 2008 |
| Itaca Properties Ltd | Construction | 2025 |
| Iulian Dragos Trans Ltd | Transport & logistics | 2018 |
| Iveta's Desserts and Tea Room Ltd | Hospitality | 2023 |
| IVY Engineering and Drainage Solutions Ltd | Professional & scientific | 2024 |
| J & H Greaves Limited | Transport & logistics | 2007 |
| J & J Linsdell Limited | Construction | 2017 |
| J & M Storage Group Limited | Professional & scientific | 2002 |
| J a Fillingham Electrical Ltd | Construction | 2022 |
| J and L Cleaning Limited | Administrative & support | 2023 |
| J Campey Licensed Trade Stock Auditor Ltd | Administrative & support | 2026 |
| J Fisher (Agri) Limited | Agriculture & fishing | 1995 |
| J Helliwell Offshore Ltd | Construction | 2011 |
| J Hutton Services Ltd | Households | 2024 |
| J Kealey Contracting Services Limited | Administrative & support | 2019 |
| J Punton & SON Limited | Wholesale & retail | 2010 |
| J R Hamilton Limited | Wholesale & retail | 2010 |
| J Scott Property Ltd | Real estate | 2024 |
| J Tech Vans Ltd | Wholesale & retail | 2020 |