| Heronbrook Estate Limited | Chesterfield | 2024 |
| Herrick Inc Limited | York | 2014 |
| Herring Homes Ltd | Birmingham | 2023 |
| Herringfleet Limited | Lowestoft | 2002 |
| Herringston Estate Trustees (NO. 1) Limited | Salisbury | 2014 |
| Herringston Estate Trustees (NO. 2) Limited | Salisbury | 2014 |
| Herron Conservatories Limited | Burton On Trent | 2003 |
| Herron Glass and Glazing Limited | Burton On Trent | 2003 |
| Herron Hire Ltd | Lochgelly | 2021 |
| Herron Sun and Garden Rooms Limited | Burton On Trent | 2003 |
| Herself Limited | Preston | 2006 |
| Hertford Asset Management NO.1 Limited | Belfast | 2021 |
| Hertford Glass Limited | Hertford | 1998 |
| Hertford Road Management Company Limited(The) | | 1986 |
| Hertford Shepherd Limited | Southampton | 2024 |
| Hertfordshire Building Supplies Limited | Colney Heath | 2016 |
| Hertfordshire Forklift Training Limited | Broadstairs | 2024 |
| Hertfordshire Funeral Service Limited | St. Albans | 2002 |
| Hertfordshire Heating Limited | Hatfield | 2016 |
| Hertfordshire Homes Limited | Cobham | 1998 |
| Hertfordshire ZOO Limited | Broxbourne | 2021 |
| Hertingford Limited | Watford | 2021 |
| Herts and Essex Window Doctor Limited | Stansted | 2017 |
| Herts Bi-Fold Doors Limited | Leicester | 2010 |
| Herts Care Limited | Uxbridge | 1997 |
| Herts Care Property Ltd. | Uxbridge | 2000 |
| Herts Dental Equipment Limited | Radlett | 2014 |
| Herts Flooring Limited | Hemel Hempstead | 2014 |
| Herts Gravel and Brickworks Limited | Welwyn | 2020 |
| Herts Gynae Limited | St. Albans | 2011 |
| Herts Roller Shutters Limited | Torquay | 2011 |
| Herts Security Solutions Ltd | Bristol | 2026 |
| Herzmensch Limited | Manchester | 2025 |
| HES Tractec Limited | Wilmslow | 2006 |
| Hesai Chemicals Co., Ltd. | Beckenham | 2021 |
| Hesco Management Services Limited | Baldock | 2015 |
| Hescon UK Limited | Birmingham | 2020 |
| Hesdale International Limited | Redcar | 2024 |
| Hesheng International Marine Limited | Beckenham | 2017 |
| Heshik Beshik Ltd | Cardiff | 2025 |
| Hesketh Avenue 1962 Limited | Blackpool | 2014 |
| Hesketh Racing Limited | Godalming | 2011 |
| Hesley Hall Limited | Doncaster | 1974 |
| Hesley Services Limited | Doncaster | 1986 |
| Hesper Estates Limited | York | 2000 |
| Hesperis Technology Limited | Luton | 2003 |
| Hess-Vermoegensverwaltung Ltd | London | 2023 |
| Hesta Digital Ltd | Carlisle | 2021 |
| Hesta Investments Limited | Bury | 2020 |
| Hestban Estates Ltd | Salford | 2022 |
| Hestia Housing Ltd | Crewe | 2025 |
| Heston Blumenthal Development Limited | Maidenhead | 2005 |
| Heston Blumenthal Studios Limited | Maidenhead | 2005 |
| HET EOT Limited | Hitchin | 2025 |
| HET Global Ltd | Beckenham | 2014 |
| Hethersgill ATV Services Limited | Carlisle | 2017 |
| Hetlelid Invest Limited | Bridgend | 2010 |
| Hetley Limited | London | 2002 |
| HEV Electrical Group Limited | Tunbridge Wells | 2023 |
| Heventac Control Services Ltd | Tonbridge | 2011 |
| Hever Business Management Limited | London | 2011 |
| Hever Estates Ltd | Sevenoaks | 2022 |
| Heversham Ltd | Great Missenden | 2025 |
| Hevey Building Supplies Limited | London | 2001 |
| Hewe Controls Limited | Beckenham | 2019 |
| Hewell Estates Ltd | Birmingham | 2005 |
| Hewett, Hewett & Hewett Limited | Bridlington | 1997 |
| Hewitsons Legal Limited | Worcester | 2021 |
| Hewitt Impex Limited | Staffordshire | 1998 |
| Hewitt Robins Trustee Company Limited | Measham | 2024 |
| Hewlett Limited | Manchester | 2014 |
| Hewzer Wynn (UK) Co., Ltd | London | 2017 |
| HEX Group Holdings Ltd | London | 2020 |
| Hexad Holdings Limited | Croydon | 2021 |
| Hexagon Accountants (Staffordshire) Limited | Newcastle | 2008 |
| Hexagon Accountants Limited | Crewe | 2005 |
| Hexagon Macon Court Limited | Crewe | 2023 |
| Hexagon Real Estate Limited | London | 2012 |
| Hexagon Self Drive Hire Limited | Burton-On-Trent | 2017 |
| Hexcal Co., Ltd. | London | 2014 |
| Hexe Limited | Ilkeston | 2015 |
| Hexenwerk Ltd | Manchester | 2023 |
| Hexham Accident Repair Centre Limited | Hartlepool | 2024 |
| Hexhamshire Organics Ltd | Northumberland | 2011 |
| Hexin Clean Electric Appliance Co., Limited | Beckenham | 2021 |
| HEY Crazy Goat Ltd | Warrington | 2022 |
| HEY Funeral Services Limited | Nottingham | 1978 |
| HEY JAM Ltd | Hull | 2020 |
| Heyansh Ltd | Kettering | 2025 |
| Heybeck Properties Ltd | Filey | 2020 |
| Heyerdal Stonehange Norway Limited | London | 2009 |
| Heyfood Enterprises Ltd | Worcester | 2017 |
| Heyford Fields Narrowboats Limited | Canvey Island | 2018 |
| Heyford Grange Estates Ltd | Northampton | 2021 |
| Heygreev Ltd | Harrow | 2023 |
| Heyi International Trading Co., Limited | Beckenham | 2019 |
| Heywood Veterinary Centre Limited | York | 2013 |
| Heywoods Limited | Shrewsbury | 2003 |
| HF Assistance Limited | Salford | 2023 |
| HF Jose and Soni Co., Ltd. | Beckenham | 2018 |