| Hedgeconnect UK Limited | Manchester | 2002 |
| Hedgehog and FOX Ltd | Bristol | 2014 |
| Hedgehog PIE Limited | Burnham-On-Sea | 2009 |
| Hedgehog Yachting Limited | London | 2019 |
| Hedgemoor Court RTM Company Limited | Basildon | 2026 |
| Hedgeric Limited | London | 2003 |
| Hedgerow Environmental Limited | Halesowen | 2021 |
| Hedgerow Industries Ltd | Billingshurst | 2017 |
| Hedgingnursery Limited | Pershore | 2012 |
| Hedingham & District Omnibuses Ltd. | Newcastle Upon Tyne | 1965 |
| Hedley Solovey Consulting Limited | Norwich | 2014 |
| Hedleys Motorspares & Hardware Ltd | Poulton-Le-Fylde | 2024 |
| Hedman Hotels Limited | Cheshire | 2004 |
| Hedonist Life Limited | London | 2020 |
| Hedyn Group Limited | London | 2024 |
| Hedyn Homes Limited | London | 2024 |
| Heeind Ltd | Kington | 2024 |
| Heelquide Limited | London | 2012 |
| Heera Holdings Ltd | Salford | 2019 |
| Hefei Medicon Plastic Products Co., Ltd | Kenilworth | 2018 |
| Hefei Wanli Tire Co., Ltd | London | 2015 |
| Heff MX Limited | Corby | 2025 |
| HEH International Co., Ltd. | London | 2004 |
| Heha Limited | Kent | 1995 |
| Hehza (Health Education, Helpers Zambia Africa ) Ltd | Huddersfield | 2024 |
| HEI Space Studio Ltd | London | 2024 |
| Heiberg Investments Limited | Sheffield | 2006 |
| Heiberg Motorsport Invest Limited | London | 2022 |
| Heiberg Motorsport Limited | London | 2022 |
| Heidar-International-Trading Limited | London | 2023 |
| Heidi and BEA Limited | Sevenoaks | 2020 |
| Heidi Battersea Limited | Brighouse | 2019 |
| Heidi Finance Holdings (UK) Limited | | 1975 |
| Heidi Hall Limited | Preston | 2006 |
| Heidi Limited | Tarporley | 2008 |
| Height Adjustable Desks.Com Limited | Wellington | 2000 |
| Heighton & SON Ltd. | Sutton Coldfield | 1989 |
| Heights Performance Ltd | Woodstock | 2024 |
| Heiie Ltd | Manchester | 2020 |
| Heilongjiang Sinoid Trading Co., Ltd | Cambridge | 2015 |
| Heimdall Lighting Towers Ltd | Longcroft | 2014 |
| Heimdalloutdoor by Rudi Andresen Heimdahl Limited | Cardiff | 2025 |
| Heimenergie Ltd | Manchester | 2023 |
| Heimveg Limited | Pencoed, Bridgend | 2011 |
| Heine Sveinsgjerd Limited | London | 2025 |
| Heir Hunters Research Limited | Ipswich | 2014 |
| Heir Hunters Researchers Limited | London | 2019 |
| HEIRUE57 Ltd | Manchester | 2023 |
| Heiton Holdings UK Limited | Wythall | 1998 |
| Hekai Construction Machinery Co., Limited | London | 2020 |
| HEL Performance Limited | Exeter | 2013 |
| Helander Malerservice Invest Limited | London | 2024 |
| Helanna Consultants Limited | Luton | 2017 |
| Helcim Group Limited | Gloucester | 2011 |
| Helcim Homes Ltd | Gloucester | 2012 |
| Helen & Kate Ltd | Nottingham | 2013 |
| Helen Day Limited | Nottingham | 2005 |
| Helen Elizabeth Dunmore Limited | London | 2023 |
| Helen Elizabeth Holterman Limited | London | 2023 |
| Helen Green Design Limited | Stratford Upon Avon | 2002 |
| Helen Industry and Trade Co., Limited | Cardiff | 2018 |
| Helen Louise Hunt Limited | Studley | 2025 |
| Helen Louise Wingrave Ltd | Bermondsey | 2026 |
| Helen Madeline Laity Limited | Rosudgeon | 2025 |
| Helen Margaret Singleton Ltd | Lochgilphead | 2025 |
| Helen Margaret Wright Ltd | Lochgilphead | 2025 |
| Helen Moyers Limited | Wells | 2014 |
| Helen Rattigan Limited | Newry | 2024 |
| Helen Taylor Permanent Cosmetics Ltd | Leamington Spa | 2012 |
| Helen's Chocolates Limited | Ulverston | 2003 |
| Helena Group Shares Limited | Kington | 2024 |
| Helena Pudilova Limited | Trethomas | 2024 |
| Helene Ingvorsen Limited | London | 2022 |
| Helensview Park Management Limited | Bangor | 2007 |
| Helgoland Partners Limited | London | 2024 |
| Heli Developments Limited | Huddersfield | 2016 |
| Heli Wolves Ltd | Loughborough | 2015 |
| Heli-Well Aviation Services Limited | Manchester | 2021 |
| Helical (West London) Limited | London | 2011 |
| Helical Bar Limited | London | 2016 |
| Helical Bar Trustees Limited | London | 1997 |
| Helical Diesel Technologies Ltd | Lytham | 2016 |
| Helical Group Limited | London | 2016 |
| Helicon Event Management Limited | Lewes | 2002 |
| Helicopter Charter Limited | Colchester | 2012 |
| Helideq Limited | Maidenhead | 2015 |
| Helig Drive Limited | Enfield | 2013 |
| Helihub Management Ltd | Edinburgh | 2012 |
| Heliomatch Limited | Reading | 2024 |
| Helios Bidco Limited | Billingshurst | 2018 |
| Helios Cornwall Limited | Newquay | 2015 |
| Helios Electronics Limited | St Ives | 2022 |
| Helios Holding International Ltd | London | 2012 |
| Helios Ltd | Haslemere | 2024 |
| Helios Marine Ltd | London | 2021 |
| Helios Midco Limited | Billingshurst | 2018 |
| Helios Power Ltd | Beckenham | 2013 |
| Helios Yachting Limited | London | 2021 |
| Heliport UK Ltd | Dorchester | 2023 |
| Helium Miracle 256 Limited | Altrincham | 2017 |