| Hoversquad Ltd | Information & communication | 2021 |
| HOW Might WE Community Limited | Information & communication | 2024 |
| HOW to Home Limited | Wholesale & retail | 2018 |
| HOW to Live Limited | Information & communication | 2014 |
| Howard LEE Limited | Arts & recreation | 2022 |
| Howells & Jolley Limited | Wholesale & retail | 2008 |
| Howes Consultancy Limited | Professional & scientific | 2025 |
| Howey Services Limited | Construction | 2015 |
| Howlett & Dickinson Limited | Health & social care | 2016 |
| Howlett Marine Services Limited | Professional & scientific | 1987 |
| Hoyle Solutions Limited | Information & communication | 2025 |
| HP Realisation Ltd | Information & communication | 2019 |
| HPD Newcastle Ltd | Health & social care | 2019 |
| HPT Recruitment Limited | Administrative & support | 2023 |
| HQA Sunderland Limited | Hospitality | 2024 |
| HQA Sunderland VB Limited | Hospitality | 2026 |
| HQD Foods Limited | Hospitality | 2023 |
| HQD Franchising Limited | Administrative & support | 2026 |
| HR 1 Consulting Limited | Professional & scientific | 2016 |
| HR Bakery Ltd | Information & communication | 2015 |
| HR Essentials Consulting Ltd | Professional & scientific | 2026 |
| HR NCL Ltd | Professional & scientific | 2025 |
| HRA Writing Ltd | Professional & scientific | 2025 |
| HRE (Pottery Lane) Limited | Construction | 2018 |
| HRE BTR Limited | Financial services | 2023 |
| HS & NK Traders Ltd | Wholesale & retail | 2024 |
| HS Residential (BR) Limited | Construction | 2018 |
| HS World Group Limited | Wholesale & retail | 2026 |
| Hs&A Limited | Wholesale & retail | 2024 |
| HSG Tower Management Limited | Other services | 2020 |
| HSH Foods Ltd | Hospitality | 2022 |
| HSH Roke Limited | Hospitality | 2020 |
| HST Engineering Limited | Construction | 1997 |
| HSW Sales Solutions Limited | Administrative & support | 2024 |
| HT Property Rentals Ltd | Households | 2024 |
| HTA Real Estate Limited | Professional & scientific | 2013 |
| Htoghyan Limited | Health & social care | 2019 |
| Htpho Ltd | Hospitality | 2024 |
| HTR Construction Ltd | Construction | 2008 |
| Htti Limited | Wholesale & retail | 2016 |
| HU Group Ltd | Wholesale & retail | 2020 |
| HU1 Group Ltd | Hospitality | 2022 |
| Hubbard Souter LLP | | 2023 |
| Hubertus Developments Ltd. | Construction | 2014 |
| Hubexo North UK Limited | Wholesale & retail | 1970 |
| Hubexo Topco Limited | Financial services | 2018 |
| Hubexo UK Limited | Financial services | 2020 |
| Hubexo UK Topco Limited | Financial services | 2023 |
| Hubs Holidays Ltd | Hospitality | 2025 |
| Huckle Tweddell LLP | | 2018 |
| Hudson Moody (Leeds) Limited | Professional & scientific | 2000 |
| Hudson Moody Development Sales Limited | Real estate | 2019 |
| Hudson Moody Limited | Real estate | 1999 |
| Hudson Moody Mortgage Services Limited | Professional & scientific | 2004 |
| Hudson Moody Property Maintenance Limited | Extraterritorial | 2003 |
| Hudson Moody York Limited | Professional & scientific | 2003 |
| Hudson Services Ltd | Professional & scientific | 2026 |
| Hugal Property Management Limited | Real estate | 2013 |
| Hughes & Co Consulting Limited | Professional & scientific | 2019 |
| Hughes-D'Aeth Associates Ltd | Professional & scientific | 2003 |
| Huginn & Muninn Research Limited | Information & communication | 2017 |
| Hugo (London) | Professional & scientific | 1990 |
| Hugrematt Productions Limited | Other services | 2013 |
| Huis Limited | Real estate | 2022 |
| Hulcote Village Limited | Administrative & support | 2005 |
| Hulk Group Ltd | Administrative & support | 2016 |
| Hull and District Motor Services Limited | Extraterritorial | 1987 |
| Hull Park and Ride Limited | Professional & scientific | 1999 |
| Hullabaloo Food Company Ltd | Hospitality | 2019 |
| Hulse Construction Limited | Construction | 2025 |
| Human Side of Code Ltd | Professional & scientific | 2025 |
| Humberhill Planning/Construction Solutions Ltd | Construction | 2024 |
| Humberhill Spring Limited | Construction | 2020 |
| Humble Home NE Ltd | Hospitality | 2024 |
| Humble Robot Limited | Information & communication | 2011 |
| Hummus and Olive Limited | Hospitality | 2019 |
| Humphrey and Wilson Ltd | Other services | 2020 |
| Humpty Dumpty Limited | Energy | 2019 |
| Humpty Dumpty Properties Ltd | Real estate | 2020 |
| Hung Moey Investments Limited | Hospitality | 2003 |
| Hungry Shack AHZ Ltd | Hospitality | 2025 |
| Hungry Shack Ltd | Hospitality | 2017 |
| Hunter Auto Services Limited | Wholesale & retail | 2018 |
| Hunter Robinson Ltd | Professional & scientific | 2020 |
| Hunter Telecom Ltd | Information & communication | 2012 |
| Hunters Court Maintenance Limited | Real estate | 1969 |
| Hunters CVR Limited | Manufacturing | 2026 |
| Hunters Edge (Wallsend) Management Company Limited | Real estate | 2006 |
| Hunters Motorcare Limited | Wholesale & retail | 2024 |
| HUO GUO Ltd | Hospitality | 2017 |
| HUS Commercial Ltd | Real estate | 2026 |
| HUS Distributions Limited | Wholesale & retail | 2023 |
| Hush Entertainments Ltd | Wholesale & retail | 2019 |
| Hushnora Limited | Wholesale & retail | 2025 |
| Husk Bar and Kitchen Ltd | Hospitality | 2025 |
| Hussain Brothers Holdings Ltd | Financial services | 2026 |
| Hussain's Properties North East Ltd | Real estate | 2023 |
| Hutchinson Farming (Ponteland) Limited | Agriculture & fishing | 2017 |
| Hutchinsons Cash and Carry Limited | Wholesale & retail | 2012 |
| Hutchinsons Fruit & VEG (Newcastle) Limited | Wholesale & retail | 2010 |