| HF Portfolio 1 Limited | Prestwich | 2024 |
| HF Portfolio 2 Limited | Prestwich | 2024 |
| Hf.Law Ltd | Salford | 2014 |
| HFA Projects Ltd | Cambridge | 2023 |
| HFB Limited | Doncaster | 1996 |
| HFC Mgmt Limited | Redruth | 2020 |
| HFD DV4 Limited | Glasgow | 2025 |
| HFD National Cloud Limited | Glasgow | 2025 |
| HFS 1991 Limited | Newmarket | 1950 |
| HG Management Limited | Reading | 2015 |
| HG PUB Co Ltd | Deal | 2016 |
| Hgaf Living Limited | Blackpool | 2021 |
| Hgal Holdings Limited | Ilkley | 2025 |
| Hgbu Trading Limited | Beckenham | 2019 |
| HGC Investments Ltd | Sutton Coldfield | 2018 |
| Hgfem Limited | London | 2008 |
| HGL Travel Limited | Stanmore | 2019 |
| HGR Limited | Mold | 2015 |
| HGT Group Limited | Beckenham | 2025 |
| Hgvt Limited | London | 2019 |
| HH BOW Limited | Banbury | 2024 |
| HH Events Ltd | Ashford | 2021 |
| HH NO.1 New Holdings Limited | Leeds | 2020 |
| HH NO.6 Holdco Limited | Leeds | 2020 |
| HH Promotions North Limited | Dover | 2013 |
| HH Property Management & Maintenance Leeds Limited | Leeds | 2014 |
| HH Wapping Limited | Banbury | 2024 |
| HHI Building Products Limited | Belfast | 1999 |
| HHN Whimsical Ltd | Manchester | 2024 |
| HHO Environmental Ltd | London | 2017 |
| HHP Hospitality Ltd | Bury St. Edmunds | 2015 |
| HHS Medical Ltd | Wembley | 2016 |
| HHV Property Ltd | St. Albans | 2023 |
| Hhw+G Limited | Chesterfield | 2017 |
| Hhwc Ltd | Wadebridge | 2024 |
| HI Collection (UK) Ltd | Manchester | 2011 |
| HI END Studio Nordic Investment Limited | London | 2025 |
| HI HO Silver Limited | Chard | 2007 |
| HI Leisure Limited | Fareham | 2007 |
| HI Muwallad AL Dawliya for Trading Ltd | Doncaster | 2026 |
| HI Peak Organic Food Limited | Staines-Upon-Thames | 2022 |
| HI Sun International Co., Ltd | Cambridge | 2015 |
| Hi-Fi Soft Suppliers Ltd | Aldershot | 2006 |
| Hi-Flow Limited | Walsall | 2015 |
| Hi-Level Enterprises Limited | Alfreton | 1988 |
| Hi-Lift Equipment Limited | Normanton | 1991 |
| Hi-Reach Limited | Normanton | 2004 |
| Hi-Tech Heating Limited | Petersfield | 2010 |
| Hi-Tech Limited | Andover | 2008 |
| HIA Design Ltd | London | 2023 |
| HIA Specialists Limited | Coventry | 2021 |
| HIA Technology Ltd | London | 2022 |
| Hiatt Earthing Limited | Lincoln | 2024 |
| Hiband Limited | King'S Lynn | 2012 |
| Hibg Limited | Brigg | 2012 |
| Hibox Technology Co., Ltd | Golders Green | 2021 |
| Hibroot Limited | Lopen | 1979 |
| Hichrom Limited | Lutterworth | 1984 |
| Hick,Hargreaves and Company Limited | Woking | 1892 |
| Hickeson (Nominees) Limited | Milton Keynes | 1996 |
| Hickeson Boyce Wealth Management Limited | Milton Keynes | 2013 |
| Hicklin Transport Ltd | Burton On Trent | 2022 |
| Hickling Music Services Ltd | Chelmsford | 2019 |
| Hickman Transport Limited | Sutton | 2006 |
| Hickmon Limited | Penzance | 1993 |
| Hicks Accountants Limited | Harpenden | 2008 |
| Hicks Corporate Services (PG) Limited | Harpenden | 2012 |
| Hicks Corporate Services Limited | Harpenden | 2012 |
| Hicks Estate Agents Limited | Orpington | 2003 |
| Hicks Group Limited | Harpenden | 2015 |
| Hicks Logistics Holdings Ltd | Bideford | 2018 |
| Hicks of Heathfield Service and MOT Centre Limited | Heathfield | 2013 |
| Hicks Randles Limited | Shrewsbury | 2005 |
| Hickson Chemical Supplies Limited | Manchester | 1959 |
| Hickson W.A. Chemicals Limited | Manchester | 1988 |
| Hickton (Bartley) Ltd | Cradley Heath | 2013 |
| Hickton (Castle Bromwich) Limited | Cradley Heath | 2015 |
| Hickton (Halesowen) Limited | Cradley Heath, West Midlands | 2021 |
| Hickton (Lisle) Limited | Cradley Heath, West Midlands | 2023 |
| Hickton Dudley Limited | Cradley Heath | 2012 |
| Hickton Family Funeral Directors Limited | Cradley Heath | 2015 |
| Hickton Wolverhampton Limited | Cradley Heath, West Midlands | 2017 |
| Hiclean Tech Ltd | Kington | 2011 |
| Hidden Beauty 2 Ltd | Bridge Of Weir | 2021 |
| Hidden Blue Lake Ltd | London | 2020 |
| Hidden Firs Ltd | Oswestry | 2024 |
| Hidden Ideas Limited | Poole | 2006 |
| Hidden Identities Ltd | Ashbourne | 2022 |
| Hidden Potential Limited | Weymouth | 2008 |
| Hidden Travel One Limited | Worcester | 2019 |
| Hidden Travel Three Limited | Worcester | 2017 |
| Hidden Travel Two Limited | Worcester | 2019 |
| Hidden Way Ltd | Dover | 2009 |
| Hideaway Limited | Nottingham | 2005 |
| Hideaway Studios Limited | Stoke-On-Trent | 2016 |
| Hideaways Holiday Cottages Limited | Altrincham | 2016 |
| Hideca Ltd | Birmingham | 2025 |
| Hidene Limited | Devon | 2000 |
| Hidiy Co., Ltd | Beckenham | 2021 |
| Hieff Wind Energy Co., Ltd | London | 2017 |