| Higl Property Ltd | Sevenoaks | 2025 |
| Hignett Ltd | Liverpool | 2024 |
| Hiiraan Foundation | London | 2011 |
| Hike Inns Ltd | Carlisle | 2014 |
| Hiker Global Ltd | Grantham | 2004 |
| Hikes and Bikes Limited | London | 2014 |
| HIL Transport Limited | London | 2021 |
| Hilaal Pharma Limited | London | 2018 |
| Hilary Close (Freehold) Limited | London | 1967 |
| Hilary Malcolm Hawkins Ltd | Witney | 2024 |
| Hilary Underwear Manufacturing Limited | Nottingham | 2005 |
| Hilbre Medical Limited | Wirral | 2025 |
| Hilco Coinvest Limited | London | 2020 |
| Hilco LP Limited | London | 2021 |
| Hilde Clementine Taylor Limited | Bridgwater | 2023 |
| Hilde VON Bingen CYF | Haverfordwest | 2023 |
| Hildegard House Management Company Limited | Whitby | 2014 |
| Hilden Investments Limited | Nottingham | 2021 |
| Hildenborough Properties Limited | Leeds | 2022 |
| Hildons Limited | Middlesex | 2007 |
| Hiley Limited | Halifax | 2015 |
| Hiley Properties Limited | Halifax | 2012 |
| Hilius Limited | Studley | 2017 |
| Hill & Smith Pension Trustees Limited | Solihull | 2015 |
| Hill Audio Limited | Leigh On Sea | 2018 |
| Hill Court Limited | Caterham | 2017 |
| Hill Developments Limited | Waltham Abbey | 2008 |
| Hill END Farm (Harden) Management Company Limited | Bingley | 2008 |
| Hill Family Trustees Limited | Edinburgh | 2012 |
| Hill Farm Studios and Workshops Limited | Barnet | 2021 |
| Hill Farm Studios Limited | Barnet | 2021 |
| Hill House Lifestyle Ltd | Weybridge | 2010 |
| Hill Housing Limited | Waltham Abbey | 2008 |
| Hill Johnstone Limited | Huddersfield | 2003 |
| Hill of Rubislaw (Land Holdings) Limited | Salford | 2011 |
| Hill of Rubislaw (Q Seven) Limited | Salford | 2012 |
| Hill Partnerships (Central) Limited | Waltham Abbey | 2008 |
| Hill Partnerships (Eastern) Limited | Waltham Abbey | 2008 |
| Hill Partnerships (London) Limited | Waltham Abbey | 2008 |
| Hill Partnerships (Northern) Limited | Waltham Abbey | 2008 |
| Hill Partnerships (Southern) Limited | Waltham Abbey | 2008 |
| Hill Partnerships (Western) Limited | Waltham Abbey | 2003 |
| Hill Residential Developments Limited | Waltham Abbey | 2008 |
| Hill Samuel Finance Limited | | 1981 |
| Hill Samuel Leasing Co. Limited | | 1968 |
| Hill Street Shelfco 1 Limited | London | 2023 |
| Hill Tarmacadam Limited | Blackpool | 2014 |
| Hill Top Fitness Ltd | Bridgwater | 2026 |
| Hill Top Green Management Company Limited | Barnsley | 2013 |
| Hill Top Sections Limited | Smethwick | 1970 |
| Hillacre Limited | Bridgend | 2026 |
| Hillard Rooms Limited | Windermere | 2001 |
| Hillboro Court Freehold Limited | London | 1999 |
| Hillbroom Manor Services Limited | Belfast | 1990 |
| Hillbrow 1969 Limited | Letchworth Garden City | 2015 |
| Hillcoat Taxis Ltd. | Motherwell | 2006 |
| Hillcrest Care Developments Ltd | Bolton | 2009 |
| Hillcrest Care Properties Limited | Bolton | 1999 |
| Hillcrest Groundworks Ltd | Northampton | 2022 |
| Hillcrest Learning Disability Services Ltd | Bolton | 2009 |
| Hillcrest Management Company (Lurgan) Ltd | Ballyclare | 2014 |
| Hillcrest Manor Management Company Limited | Ballyclare | 2004 |
| Hillcrest Meridian Ltd | Manchester | 2025 |
| Hillcroft Commercial Vehicle Services Limited | 1 Oxford Street | 2005 |
| Hilldon Limited | Wembley | 2018 |
| Hillebrand Marine Ltd. | London | 2018 |
| Hillendale Group Limited | Gateshead | 2012 |
| Hillendale LR Limited | Gateshead | 1997 |
| Hillesley Holdings Ltd | Wotton-Under-Edge | 2018 |
| Hillford Estates Limited | London | 1977 |
| Hillfort Leisure Ltd | Machynlleth | 2020 |
| Hillgarden Limited | London | 2005 |
| Hillgate Limited | Bridgend | 2025 |
| Hillgrove (Caswell) Limited | Swansea | 2011 |
| Hillhay House Fowey Developments Limited | London | 2026 |
| Hillhay House Fowey Investments Limited | London | 2026 |
| Hillhead Group Ltd | Benfleet | 2013 |
| Hillier Bartley Clothing Limited | Beckenham | 2021 |
| Hillier Hopkins Executors Limited | Watford | 2020 |
| Hillier Hopkins Group Holdings Limited | Watford | 2022 |
| Hillier Hopkins Probate and Estate Administration Services Limited | Watford | 2020 |
| Hillman Family Company Limited | | 1993 |
| Hillman's GIN Company Limited | | 1991 |
| Hillmans Court Management Company Limited | Coleraine | 2004 |
| Hillmere Limited | Bridgend | 2021 |
| Hillmond Properties Limited | Belfast | 2006 |
| Hillplan Limited | Bridgend | 2021 |
| Hillpride Capital (London) Limited | London | 2012 |
| Hillride Limited | Bridgend | 2026 |
| Hills (West Midlands) Limited | Swindon | 1950 |
| Hills Aggregates Limited | Swindon | 2001 |
| Hills Construction Limited | Colchester | 2022 |
| Hills CX Consultancy Ltd | Norwich | 2025 |
| Hills Diecasting Company Limited | Mitcham | 1947 |
| Hills Driver Training Limited | Runcorn | 2012 |
| Hills Haulage Limited | Swindon | 1964 |
| Hills NON Ferrous Limited | Mitcham | 1976 |
| Hills of Surrey Limited | Bicester | 2003 |
| Hills Partnerships Limited | Waltham Abbey | 2008 |
| Hills Recycling Limited | Swindon | 1980 |