| Highway Fencing Limited | Construction | 2012 |
| Highway Garage Ltd | Wholesale & retail | 2005 |
| Highway Resource Solutions Ltd | Manufacturing | 2011 |
| Highway Services Automotive Centre Limited | Wholesale & retail | 2012 |
| Highway Solutions Limited | Real estate | 1994 |
| Highways Surveying Training Ltd | Construction | 2021 |
| Highwood Restaurant Ltd | Hospitality | 2023 |
| Higqati Limited | Wholesale & retail | 2020 |
| Higson & Co (Nottingham) Limited | Professional & scientific | 2018 |
| Higson Business Services Ltd | Administrative & support | 2022 |
| HII (UK) International Holding Company Limited | Professional & scientific | 2015 |
| HII Communications Limited | Information & communication | 2020 |
| HII Nuclear UK Limited | Professional & scientific | 2015 |
| Hijk House Limited | Real estate | 2020 |
| HIK Groups Limited | Wholesale & retail | 2025 |
| Hilary Underwear Manufacturing Limited | Extraterritorial | 2005 |
| Hilda’S Hair Haven Ltd | Wholesale & retail | 2025 |
| Hilden Investments Limited | Extraterritorial | 2021 |
| Hilife Transporters Limited | Wholesale & retail | 2022 |
| Hill & Company Property Investments Limited | Real estate | 2025 |
| Hill Cost Consultant Limited | Professional & scientific | 2022 |
| Hill Cross (Derby) Limited | Construction | 2021 |
| Hill Design Services (HDS) Ltd | Professional & scientific | 2023 |
| Hill Farm Barns Management Company Limited | Real estate | 2003 |
| Hill Farm Furniture Limited | Manufacturing | 2005 |
| Hill Pemberton Controls Limited | Information & communication | 1998 |
| Hill Rise Holdings Limited | Financial services | 2025 |
| Hillary's Blinds Trustee Company Limited | Administrative & support | 1998 |
| Hillarys Blinds Limited | Professional & scientific | 1981 |
| Hillarys Commercial Holdings Limited | Real estate | 2023 |
| Hillarys Commercial Limited | Real estate | 2023 |
| Hillarys Developments Limited | Real estate | 2001 |
| Hillarys Finance (UK) Limited | Financial services | 2009 |
| Hillarys Industrial Holdings Limited | Real estate | 2023 |
| Hillarys Industrial Limited | Real estate | 2023 |
| Hillarys Investments Limited | Financial services | 2017 |
| Hillarys Residential (NO1) Limited | Real estate | 2012 |
| Hillbee Properties Limited | Real estate | 2023 |
| Hillcrest Holdings Nottm Limited | Financial services | 2023 |
| Hillcrest Nottingham Ltd | Real estate | 2017 |
| Hillcrest Treasury Services Ltd | Administrative & support | 2026 |
| Hillfield Land Co. Limited | Real estate | 1963 |
| Hilliard Holdings Limited | Financial services | 2021 |
| Hilliard Plant Limited | Construction | 2021 |
| Hilliard Spray Limited | Construction | 2026 |
| Hilliard Surfacing Limited | Construction | 2021 |
| Hillington Marketing Limited | Professional & scientific | 2025 |
| Hillside Farm Care Home Limited | Health & social care | 2004 |
| Hillside Green Food Limited | Wholesale & retail | 2023 |
| Hillside Mews Crescent Drive Management Company Limited | Households | 2024 |
| Hillside Support Group Ltd | Public administration | 2022 |
| Hillside Support Limited | Other services | 2017 |
| Hilltop Country Park Limited | Hospitality | 2020 |
| Hilltop Developments Notts Limited | Construction | 2021 |
| Hilltop Fish Bar Ltd | Hospitality | 2024 |
| Hilltop Florist Limited | Wholesale & retail | 2013 |
| Hilltop Nurseries (Nottingham) Limited | Wholesale & retail | 2012 |
| Hilltop Pizzeria Ltd | Hospitality | 2024 |
| Hilltop Social Ltd | Professional & scientific | 2022 |
| Hilstone Properties Ltd | Hospitality | 2025 |
| Hilton Cannon Electrical Ltd | Construction | 2010 |
| Hilton Cannon Facilities Maintenance Ltd | Construction | 1998 |
| Hilton Dental Clinic Limited | Health & social care | 2026 |
| Himalaya World Foods Ltd | Wholesale & retail | 2023 |
| Himalayan Extractor Ltd | Wholesale & retail | 2026 |
| Himali Food Suppliers Ltd | Wholesale & retail | 2023 |
| Himibra Ltd | Hospitality | 2016 |
| Hinata KIM Ltd | Other services | 2026 |
| Hinchers Limited | Administrative & support | 2013 |
| Hinchley Agriculture Limited | Agriculture & fishing | 2008 |
| Hinchley Leisure Limited | Hospitality | 2018 |
| Hinchley Management Limited | Professional & scientific | 2018 |
| Hinchley Properties Limited | Real estate | 2016 |
| Hinckley OFF Licence Ltd | Wholesale & retail | 2019 |
| Hinckley V.E. Limited | Other services | 1997 |
| Hincroft Limited | Construction | 2012 |
| Hindmarsh Management Company Limited | Households | 2018 |
| Hindsagar Overseas Private Ltd | Administrative & support | 2026 |
| Hindsons Plant Driving Services Ltd | Construction | 2016 |
| Hine Hall Management Limited | Households | 1988 |
| Hine Park (Freehold) Ltd | Households | 2018 |
| Hino Flight Group Limited | Administrative & support | 2024 |
| Hinton Hygiene Limited | Water & waste | 2026 |
| Hipcox Ltd | Professional & scientific | 2023 |
| Hipo Coffee Limited | Wholesale & retail | 2020 |
| Hippo Consulting Ltd | Professional & scientific | 2024 |
| Hippozone Limited | Other services | 2000 |
| Hipra UK and Ireland Limited | Manufacturing | 2010 |
| HIQ Marine Services UK Ltd | Manufacturing | 2022 |
| Hiraya Branding Ltd | Professional & scientific | 2023 |
| Hire S Recruitment Limited | Administrative & support | 2018 |
| Hire Twenty One Limited | Administrative & support | 2021 |
| Hirepower Coventry Ltd | Administrative & support | 2025 |
| Hiring Solutions Ltd | Wholesale & retail | 2023 |
| Hirsch-Tech Limited | Wholesale & retail | 2019 |
| HIS & Hers Beauty Temple Ltd | Other services | 2025 |
| HIS and Hers Aesthetics Ltd | Other services | 2024 |
| Histologix Limited | Professional & scientific | 2005 |
| History and Mystery Limited | Professional & scientific | 2015 |
| HIT & Co Limited | Wholesale & retail | 2013 |