| Heka Consulting UK Ltd | Information & communication | 2026 |
| Hekturs Investments Limited | Professional & scientific | 2026 |
| HEL Houguez Ltd | Other services | 2022 |
| Helal & Shibli Ltd | Financial services | 2024 |
| Helal Mart Limited | Wholesale & retail | 2025 |
| Helen Buchan Design Ltd | Professional & scientific | 2016 |
| Helen Flack Limited | Education | 2009 |
| Helen Hill Hairdressing Limited | Other services | 2020 |
| Helen Sharif Resourcing Ltd | Administrative & support | 2018 |
| Helen Sheehy Consulting Limited | Administrative & support | 2016 |
| Helen Smith Trading Ltd | Real estate | 2025 |
| Helena Kennedy Foundation | Education | 1998 |
| Helens Bay Consulting Ltd | Professional & scientific | 2024 |
| Helga Henry Ltd | Professional & scientific | 2018 |
| Helia Beauty Ltd | Wholesale & retail | 2025 |
| Heliasz Bar & Dinning Limited | Hospitality | 2013 |
| Heligan Capital LLP | | 2024 |
| Heligan Corporate Finance LLP | | 2015 |
| Heligan Global Limited | Financial services | 2025 |
| Heligan GP Holdco 1 Limited | Financial services | 2024 |
| Heligan GP Holdco 2 Limited | Financial services | 2024 |
| Heligan Group UK LLP | | 2020 |
| Heligan Investments LLP | | 2021 |
| Heligan Pandora LLP | | 2021 |
| Heligan Private Equity II (GP) LLP | | 2024 |
| Heligan Projects Limited | Professional & scientific | 2022 |
| Heligan Strategic Advisory (CRI) LLP | | 2026 |
| Heligan Strategic Advisory (Psls) LLP | | 2026 |
| Heligan Strategic Advisory LLP | | 2020 |
| Heligan Venture Capital LLP | | 2021 |
| Heligan Wealth Management LLP | | 2021 |
| Helinalux Ltd | Education | 2023 |
| Helion & Company Limited | Administrative & support | 2002 |
| Helios Public Services Limited | Health & social care | 2022 |
| Helium Direct Ltd | Transport & logistics | 2018 |
| Helium Neom Ltd | Wholesale & retail | 2024 |
| Helius Media Ltd | Information & communication | 2019 |
| Helix Auto Centre Ltd | Wholesale & retail | 2025 |
| Helix IT Consultancy Limited | Information & communication | 2015 |
| Helix Motors Limited | Wholesale & retail | 2025 |
| Helixx Industries Ltd | Manufacturing | 2022 |
| Hellas GR Ltd | Manufacturing | 2025 |
| Hellen Systems Limited | Information & communication | 2021 |
| Hello Benefits Ltd | Administrative & support | 2025 |
| Hello Catering Ltd | Hospitality | 2020 |
| Hello I'M Charlie Ltd | Information & communication | 2022 |
| Hello Master Ltd | Wholesale & retail | 2025 |
| Hello Mate Ltd | Hospitality | 2025 |
| Hello Mobiles Limited | Real estate | 2006 |
| Hello Mystic Egypt Ltd | Administrative & support | 2025 |
| Hello Prosper Ltd | Professional & scientific | 2026 |
| Hello Restaurant Limited | Administrative & support | 2019 |
| Hello Shine Cleaning Services Limited | Administrative & support | 2026 |
| Hello Sidekick Ltd | Professional & scientific | 2015 |
| Hello Steadman Ltd | Information & communication | 2017 |
| Hello Vitamins Ltd | Wholesale & retail | 2024 |
| Hello World Group Limited | Extraterritorial | 2021 |
| Hello!Uk Limited | Professional & scientific | 2013 |
| Hello-Hi Travel Limited | Administrative & support | 2011 |
| Hellocar (Rentals) Ltd | Administrative & support | 2020 |
| Hellofly Ltd | Administrative & support | 2025 |
| Hellofresh Limited | Transport & logistics | 2025 |
| Hellsmarketing Ltd | Information & communication | 2025 |
| Hellway Home Ltd | Administrative & support | 2025 |
| Helm Music Management Ltd | Information & communication | 2026 |
| Helmborn Ltd | Wholesale & retail | 2026 |
| Helmsley Traders Ltd | Wholesale & retail | 2026 |
| Heloca Health Ltd | Health & social care | 2022 |
| Help for YOU Limited | Administrative & support | 2004 |
| Help 2 Buy Properties (Guineans in UK) Ltd | Financial services | 2025 |
| Help Good Grow Community Interest Company | Health & social care | 2021 |
| Help Harry Help Others | Health & social care | 2012 |
| Help Organisation Limited | Professional & scientific | 2006 |
| Help the Helpee Ltd | Health & social care | 2023 |
| Help to Own Limited | Real estate | 2019 |
| Help Your Neighbour Ltd | Other services | 2014 |
| HELP4FEET Limited | Health & social care | 2020 |
| Helpful Group Limited | Financial services | 2024 |
| Helpful Plumber Limited | Construction | 2018 |
| Helping Hand Housing Ltd | Real estate | 2026 |
| Helping Hands Domestic Cleaning Limited | Administrative & support | 2015 |
| Helping Hands in Birmingham Ltd | Health & social care | 2017 |
| Helping Heroes DE Ltd | Administrative & support | 2024 |
| Helping Homes Limited | Health & social care | 2020 |
| Helping OUR Minds Evolve CIC | Other services | 2024 |
| Helpinhand (Birmingham) Ltd | Health & social care | 2020 |
| Helson Ltd | Professional & scientific | 2017 |
| Helvetic Consultancy Limited | Professional & scientific | 2011 |
| HEM Investment Limited | Real estate | 2025 |
| Hema UK I Limited | Wholesale & retail | 2020 |
| Hema UK II Limited | Wholesale & retail | 2020 |
| Hema's Best Kitchen UK Limited | Hospitality | 2025 |
| Heman Mohammad Ltd | Construction | 2022 |
| Hemanth Construction Limited | Construction | 2017 |
| Hemcomp Limited | Real estate | 1999 |
| Heminsley Law Limited | Financial services | 2016 |
| Hemisphere Management Company Limited | Households | 2006 |
| Hemmi Property Limited | Real estate | 2018 |
| Hemo-Cushion Ltd | Manufacturing | 2025 |
| Hemp Building Supplies Ltd | Real estate | 2022 |