| Helium Miracle 300 Limited | Altrincham | 2020 |
| Helium Miracle 301 Limited | Newcastle Upon Tyne | 2020 |
| Helium Miracle 382 Limited | Altrincham | 2023 |
| Helium Miracle 383 Limited | Altrincham | 2023 |
| Helium Miracle 384 Limited | Altrincham | 2023 |
| Helium Miracle 403 Limited | Altrincham | 2024 |
| Helium Miracle 404 Limited | Altrincham | 2024 |
| Helium Miracle 406 Limited | Altrincham | 2025 |
| Helium Miracle 407 Limited | Altrincham | 2025 |
| Helium Miracle 409 Limited | Altrincham | 2025 |
| Helium Pictures Limited | Norwich | 2018 |
| Helium Tech Solution Limited | London | 2024 |
| Helix 360 Limited | Bristol | 2025 |
| Helix Core Maintenance Services Ltd | Manchester | 2026 |
| Helix Enterprises Ltd | Salford | 2004 |
| Helix Homes Construction Limited | Peacehaven | 2015 |
| Helix Homes Properties Ltd | Peacehaven | 2018 |
| Helix IT Services Ltd | Feltham | 2016 |
| Helix Nebula Limited | London | 2020 |
| Helix Project Management Ltd | Pickering | 2017 |
| Helix Surfacing Ltd | Wrexham | 2011 |
| Helixforge Trading Solutions Ltd | Manchester | 2025 |
| Helixharmony Investment Group Limited | Manchester | 2026 |
| Helixor for International Services Limited | Manchester | 2026 |
| Helixspark Global Trading Ltd | Manchester | 2025 |
| Helixsphere Systems Ltd | Doncaster | 2025 |
| Hell Ltd | Wembley | 2024 |
| Hell Mountain Brewing Co. Ltd | Berkhamsted | 2014 |
| Hella Manufacturing Limited | Banbury | 1990 |
| Hellenia Limited | North Yorkshire | 1981 |
| Hellens Plant Limited | Billingham | 2003 |
| Hellis Limited | London | 2014 |
| Hellisyum Ltd | London | 2026 |
| Helliwell Farms Limited | Wootton | 2013 |
| Hello Baobab Ltd | Bognor Regis | 2021 |
| Hello Cornwall Hampers Limited | St. Austell | 2020 |
| Hello Relocation Ltd | Nottingham | 2020 |
| Hello Sunday Ltd | Bradford | 2020 |
| Hello TED Ltd | Camberley | 2019 |
| Hello There Ltd | Fraserburgh | 2022 |
| Hello World Group Limited | Birmingham | 2021 |
| Hellodpo Ltd | Kettering | 2023 |
| Helloknife Ltd | Manchester | 2010 |
| Hellraze Ltd | Malmesbury | 2008 |
| Hellyhansenonline Limited | Leeds | 2008 |
| Helm Capital Limited | London | 2019 |
| Helm Godfrey Consulting Limited | London | 2008 |
| Helmat Investments Limited | London | 1965 |
| Helmer & Dyer Joinery Limited | Nr Bishop'S Stortford | 1999 |
| Helmnew Limited | London | 1981 |
| Helmore Management Ltd | Coventry | 2018 |
| Helmrig Landscapes Limited | Leyland | 1991 |
| Helnay Ltd | Greenford | 2023 |
| Helon Machinery Limited | London | 2024 |
| Help 4 Conveyancers Limited | Norwich | 2001 |
| Help 4U2 C.I.C. | London | 2022 |
| Help and Advice Plus Ltd | Seaton | 2011 |
| Help First Homebuyers Limited | London | 2008 |
| Help for Conveyancers Limited | Norwich | 2001 |
| Help Mankind Ltd | Manchester | 2009 |
| Help ME DO My Homework Ltd | Oxford | 2022 |
| Help UK CC Ltd | Peacehaven | 2026 |
| Help YOU Taxation Ltd | Crowthorne | 2019 |
| Help Your Health Limited | London | 2023 |
| Help-Me-Park.Com Limited | Burnley | 2005 |
| Helpdesk Communications Limited | Erdington | 2016 |
| Helpful Holidays (Holdings) Limited | Altrincham | 2013 |
| Helpful Holidays Limited | Altrincham | 1999 |
| Helping Hand Accounting Limited | Truro | 2009 |
| Helping Hand Computers Limited | Truro | 2009 |
| Helpline Metal Services Limited | Luton | 1995 |
| Helse-Amitzur Limited | Cardiff | 2025 |
| Helt Care Ltd | Bletchley | 2023 |
| Heltor Environmental Limited | Newton Abbot | 2020 |
| Helvetii Ventures Ltd | Rye | 2020 |
| Helyg Fach Caravan Site Limited | Cardigan | 2002 |
| Hembas Limited | Farnham | 2024 |
| Hemco Limited | Middlesex | 1973 |
| Hemel Challenger Limited | Salford | 2022 |
| Hemel Consulting Limited | Ashford | 2003 |
| Hemel Hempstead Town Football Club Limited | Leighton Buzzard | 1996 |
| Hemisphere Elite Travel Limited | Ipswich | 2020 |
| Hemisphere Global Logistics Limited | Ipswich | 2016 |
| Hemley Funeral Service Limited | Sutton Coldfield | 1960 |
| Hemlingford Road Management Company Limited | Solihull | 2008 |
| Hemma Bruket Limited | London | 2026 |
| Hemmabruket Invest Limited | London | 2026 |
| Hemmells Management Company Limited | Basildon | 1988 |
| Hemming and Peace Limited | Nottingham | 2011 |
| Hemming Information Services Limited | London | 1919 |
| Hemming Publishing Limited | London | 1979 |
| Hemmings & Franks (Course) Limited | Bognor Regis | 1962 |
| Hemp Community Interest Company | Edinburgh | 2017 |
| Hempel Metals UK Ltd | London | 1986 |
| Hempiness Limited | Bridgwater | 2003 |
| Hemprodukter Import Investment Limited | London | 2024 |
| Hemprodukter Import Limited | London | 2024 |
| Hempsmiths Ltd | Hartley Wintney | 2020 |
| Hemptech Ltd | Taunton, Somerset | 2018 |
| Hempural Holdings Ltd | Morecambe | 2019 |