| Head in the Clouds Limited | Wholesale & retail | 2014 |
| Head-Hunted Recruitment Services Limited | Administrative & support | 2015 |
| Headfirst Bristol Limited | Arts & recreation | 2013 |
| Headfirst Hair Limited | Other services | 2016 |
| Headlands (Atherstone) Ltd | Construction | 2018 |
| Headspace Accountancy Ltd | Professional & scientific | 2012 |
| Headsup Technologies Limited | Information & communication | 2020 |
| Headtask Limited | Other services | 1992 |
| Headteacherchat Ltd | Professional & scientific | 2022 |
| Headway Norfolk & Waveney Ltd | Health & social care | 1992 |
| Healand Oliver Ltd | Professional & scientific | 2021 |
| Healey & Lord Ltd | Wholesale & retail | 2002 |
| Health Care Design Limited | Professional & scientific | 1992 |
| Health Fit Limited | Other services | 2023 |
| Health IS Life Ltd | Extraterritorial | 2014 |
| Health LAB Food UK Limited | Wholesale & retail | 2018 |
| Health Through Yoga CIC | Health & social care | 2024 |
| Health Wealth Happiness Ltd | Manufacturing | 2022 |
| Healthcare Technology Design Limited | Administrative & support | 2013 |
| Healthease CIC | Health & social care | 2023 |
| Healthpro Recruitment Ltd | Administrative & support | 2019 |
| Healthstaff Recruitment Ltd | Administrative & support | 2019 |
| Healthtech Global Limited | Information & communication | 2025 |
| Healthy Louisa Ltd | Hospitality | 2018 |
| Heaphys Homes Ltd | Real estate | 2022 |
| Hear and NOW Therapy Limited | Other services | 2015 |
| Hear SAY Ltd | Wholesale & retail | 2022 |
| Hearcare Ltd | Wholesale & retail | 2013 |
| Heart 2 Heart Health Care Limited | Health & social care | 2025 |
| Heart and Home Surveying Ltd | Professional & scientific | 2026 |
| Heart of Thetford CIC | Information & communication | 2026 |
| Heart to Heart Home Care Agency Ltd | Health & social care | 2016 |
| Heartfelt Healthcare Limited | Health & social care | 2023 |
| Heartlands Fryers Limited | Hospitality | 1979 |
| Heartsease Grecco Catering Ltd | Hospitality | 2026 |
| Heartwood Group Construction Ltd | Health & social care | 2019 |
| Heaser Business Consulting Limited | Information & communication | 2003 |
| Heat Control Ltd | Construction | 2022 |
| Heat Different Limited | Construction | 2015 |
| Heat Electric Enterprises Limited | Construction | 2023 |
| Heat Norfolk Ltd | Construction | 2003 |
| Heat Pump Plus Ltd | Manufacturing | 2012 |
| Heat Unique Limited | Construction | 2017 |
| Heat-Gas Ltd | Administrative & support | 2017 |
| Heatcare (Norwich) Ltd | Manufacturing | 2014 |
| Heatcare BMC Ltd | Construction | 2013 |
| Heatcraft (Anglia) Limited | Construction | 2002 |
| Heatex Limited | Professional & scientific | 2001 |
| Heath & Heath Ltd. | Administrative & support | 1995 |
| Heath Electrical Services MK Limited | Construction | 2018 |
| Heath Farm Barns Rollesby Limited | Administrative & support | 2007 |
| Heath Farms,Limited | Agriculture & fishing | 1946 |
| Heath Road Energy Centre Limited | Energy | 2021 |
| Heath Service Centre Ltd | Wholesale & retail | 2011 |
| Heath&Co (Norwich) Ltd | Real estate | 2013 |
| Heathen Consultancy Ltd. | Information & communication | 2012 |
| Heather Millan School of Dance Limited | Arts & recreation | 2015 |
| Heatherbank Consulting Limited | Professional & scientific | 2019 |
| Heathfield (Norwich) Limited | Hospitality | 2016 |
| Heathgate Community Play Hub C.I.C. | Health & social care | 2026 |
| Heathlands Social Club Limited | Hospitality | 2014 |
| Heaths Properties Holdings Ltd. | Professional & scientific | 1997 |
| Heaths Properties Limited | Financial services | 1995 |
| Heathwall Consulting Limited | Professional & scientific | 2019 |
| Heathwood Truck Car & Van Ltd | Wholesale & retail | 2007 |
| Heatlink Services Ltd | Construction | 2017 |
| Heaton Vences Group Limited | Financial services | 2024 |
| Heatstar Plumbing and Heating Limited | Construction | 2001 |
| Heattend Products Ltd | Wholesale & retail | 2006 |
| Heaven Ltd | Manufacturing | 2024 |
| Heaven Scent Limited | Other services | 2025 |
| Heavenly Property Revisited Limited | Real estate | 2025 |
| Heavenly Treasure Ltd | Financial services | 2026 |
| Heavenly Vision Ltd | Real estate | 2026 |
| HEB Complete Office Limited | Construction | 2016 |
| Hebron Trust | Hospitality | 1993 |
| Heckingham Park Residents RTM Company Limited | Households | 2015 |
| Hector Clothing Limited | Wholesale & retail | 2018 |
| Hedley Solovey Consulting Limited | Extraterritorial | 2014 |
| Hedra UK Ltd | Professional & scientific | 2023 |
| Heena Chudasama Limited | Health & social care | 2020 |
| Heigham Associates Ltd | Professional & scientific | 2023 |
| Heigham Cottage Freehold Limited | Households | 2019 |
| HEJ Developments Ltd | Construction | 2019 |
| HEL Properties Limited | Real estate | 2020 |
| Held Properties Limited | Real estate | 2013 |
| Helen Clegg Nutrition Limited | Health & social care | 2026 |
| Helena Eyimi Limited | Education | 2017 |
| Helgate Pottery Ltd | Manufacturing | 2022 |
| Heli Maint Ltd | Manufacturing | 2022 |
| HELI145 Ltd | Manufacturing | 2024 |
| Heliarc Hustlers Ltd | Manufacturing | 2018 |
| Helicopters International Limited | Professional & scientific | 2022 |
| Helio Installations Ltd | Construction | 2025 |
| Helio Ventures Limited | Professional & scientific | 2025 |
| Helionova Limited | Wholesale & retail | 1983 |
| Helistandards Ltd | Professional & scientific | 2021 |
| Helitrax Ltd | Transport & logistics | 2016 |
| Helium Pictures Limited | Extraterritorial | 2018 |
| Helius UK Ltd | Professional & scientific | 2024 |