| H&H Consulting Ltd | Real estate | 2023 |
| H28 157/158 Limited | Real estate | 2020 |
| H28 180/181 Limited | Real estate | 2020 |
| H3O Global Ltd | Financial services | 2020 |
| Hair Extensions by @NO1 Ltd | Wholesale & retail | 2023 |
| Hair Extensions by JO Jordan Ltd | Other services | 2023 |
| Hall Green Road Developments Limited | Construction | 2026 |
| Haltemprice Online Limited | Health & social care | 2012 |
| Hannat Property Limited | Real estate | 2024 |
| Hardy's Property Ltd | Real estate | 2024 |
| Harlen Ltd | Professional & scientific | 2008 |
| Harman Racing Ltd | Real estate | 2018 |
| Harrison & Woolls Ltd. | Wholesale & retail | 2018 |
| Harrison & Wright Limited | Real estate | 2022 |
| Hase Homes Limited | Real estate | 2020 |
| Hats on Top Limited | Wholesale & retail | 2003 |
| Hawwa Indian Restaurant Ltd | Hospitality | 2019 |
| Hbsa Promotions Limited | Arts & recreation | 2026 |
| HD Decorating Services Ltd | Other services | 2003 |
| HDM Retail Stores Limited | Wholesale & retail | 2023 |
| Heads Associates Ltd | Professional & scientific | 2016 |
| Health Hub Digital Limited | Information & communication | 2019 |
| Health Products and Development Limited | Health & social care | 2017 |
| Heat at Home Ltd | Construction | 2021 |
| Heating Systems Hull Limited | Construction | 2019 |
| Helcon Building Limited | Construction | 2024 |
| Hello Gorgeous Hair and Beauty Ltd | Other services | 2026 |
| Helyards Removals Ltd | Transport & logistics | 2025 |
| Hengjia UK Limited | Professional & scientific | 2023 |
| Herd Agency Limited | Information & communication | 2013 |
| Hessle Automatics Limited | Administrative & support | 1988 |
| Hessle Design and Engineering Ltd | Professional & scientific | 2026 |
| Hessle Dog Walkers Ltd | Other services | 2024 |
| Hessle Engineering Limited | Professional & scientific | 2018 |
| Hessle Feast CIC | Administrative & support | 2024 |
| Hessle First Business Association Community Interest Company | Other services | 2013 |
| Hessle Hand Car Wash Ltd | Wholesale & retail | 2022 |
| Hessle Initiative Ltd | Health & social care | 2024 |
| Hessle Investments Limited | Real estate | 2004 |
| Hessle Kitchen Limited | Hospitality | 2019 |
| Hessle Optical Limited | Health & social care | 2005 |
| Hessle Prestongate Properties Limited | Real estate | 2013 |
| Hessle Rangers CIC | Arts & recreation | 2021 |
| Hessle Rugby & Cricket Club Limited | Arts & recreation | 2013 |
| Hessle Tyres Ltd | Wholesale & retail | 2022 |
| Hessleham Showdogs Limited | Agriculture & fishing | 2023 |
| Hesslewood 2020 Limited | Other services | 2016 |
| Hh&M Aesthetics Limited | Other services | 2021 |
| HI Commercial Ltd | Financial services | 2018 |
| Hica Properties Limited | Health & social care | 2010 |
| Hicalife (Hedon) Limited | Construction | 2002 |
| Hicalife Developments Limited | Construction | 2002 |
| Hicalife Retirement Developments (NO.2) Limited | Health & social care | 2014 |
| Hicalife Retirement Developments Limited | Construction | 2004 |
| Hicalife Retirement Villages LLP | | 2004 |
| Hideout Experience Ltd | Agriculture & fishing | 2024 |
| Highfields Management Immingham Limited | Real estate | 2024 |
| Hiisi Consulting Limited | Professional & scientific | 2017 |
| Hinks Holdings Ltd | Financial services | 2015 |
| Hksorth Limited | Health & social care | 2010 |
| Hlas Audit Limited | Professional & scientific | 2025 |
| Hlas Group Limited | Professional & scientific | 2025 |
| Hlas Holdings Limited | Professional & scientific | 2022 |
| Hlas Partners Limited | Professional & scientific | 2014 |
| Hobson Sport and Travel Limited | Arts & recreation | 2008 |
| Hodgson Property Investments Ltd | Real estate | 2006 |
| HOL (Hull) Limited | Other services | 2018 |
| Holdco Alpha Limited | Professional & scientific | 2012 |
| Holderness Limited | Financial services | 2025 |
| Holderness Metal Co. Ltd | Water & waste | 2003 |
| Hollypoint Developments Ltd | Real estate | 2007 |
| Holmbury Associates Limited | Information & communication | 2016 |
| Holmes and Sons Paving & Groundworks Ltd | Administrative & support | 2019 |
| Home to Home Sunblinds Ltd | Wholesale & retail | 2003 |
| Homecross Limited | Households | 1986 |
| Honnu Limited | Real estate | 2021 |
| Honor SAL Holdings Ltd | Financial services | 2026 |
| Honor SAL Ltd | Wholesale & retail | 2025 |
| Honor SAL Properties Ltd | Construction | 2025 |
| Hornby Homes Limited | Construction | 2014 |
| Host With the Most Ltd | Hospitality | 2023 |
| Hot Italian Ltd | Hospitality | 2025 |
| House Jarvis Limited | Professional & scientific | 2018 |
| Howden Skin Clinic Ltd | Other services | 2024 |
| Hpsg Ltd | Real estate | 2012 |
| HRO Hull Ltd | Education | 2022 |
| HSG Properties Yorkshire Limited | Real estate | 2022 |
| HTS Design Services Limited | Professional & scientific | 2004 |
| Hull and Humber Property Limited | Real estate | 2024 |
| Hull City Skips Ltd | Water & waste | 2024 |
| Hull Deformity Planning Course Ltd | Education | 2021 |
| Hull Exhaust Centre Limited | Wholesale & retail | 1979 |
| Hull Food Wholesale Limited | Wholesale & retail | 2026 |
| Hull Lets Limited | Real estate | 2023 |
| Hull Pops Ltd | Wholesale & retail | 2017 |
| Hull Pristine Clean Ltd | Administrative & support | 2023 |
| Humber Access Limited | Other services | 2011 |
| Humber Business Services Ltd | Professional & scientific | 2018 |
| Humber Electrical Services Ltd | Construction | 2023 |
| Humber Fishing Limited | Agriculture & fishing | 2012 |