| HOW 2 Keep Youyr JOB Ltd | Ascot | 2023 |
| HOW 2 Training Limited | Widnes | 2020 |
| HOW and WHY Ltd | Hitchin | 2020 |
| HOW the East WAS WON Limited | London | 2011 |
| HOW to Build a Brand Global Ltd | Burton-On-Trent | 2018 |
| HOW to Find Care Limited | Bromsgrove | 2025 |
| Howard House (Oxford) Ltd | Oxford | 2006 |
| Howard Industries Limited | Newport Pagnell | 1986 |
| Howard Jenkins (Edge Hill) Limited | Sutton Coldfield | 1939 |
| Howard Marine Ltd | Redcar | 2016 |
| Howard Scott Ltd | London | 2023 |
| Howard Street 1964 Limited | York | 2014 |
| Howard Tenens Logistics Limited | Stroud | 2017 |
| Howards Accountants Limited | Staffordshire | 2004 |
| Howards of Llanelli Limited | Carmarthenshire | 1985 |
| Howarth Court Limited | Runcorn | 2014 |
| Howaye Textiles Company Limited | Cambridge | 2016 |
| Howden Court Limited | South Norwood | 1986 |
| Howden Fabrications Limited | Cumbernauld | 2014 |
| Howden Joinery People Services Limited | London | 2006 |
| Howden Kitchens Limited | London | 2006 |
| Howdoyoudoodle Ltd | St. Asaph | 2009 |
| Howdy (Birmingham) Ltd | Birmingham | 2019 |
| Howe (Investments) Ltd | Norwich | 2015 |
| Howe and Davis Limited | Devon | 1949 |
| Howe Baker Engineers Incorporated Limited | London | 2011 |
| Howe Finance Ltd | Derby | 2013 |
| Howe Maxted Group Limited | Nottingham | 1984 |
| Howell & Associates Limited | Leominster | 2014 |
| Howells Marketing Limited | London | 2024 |
| Howells Roofing Limited | Enterprise Park | 2003 |
| Howes Enterprises Limited | Taunton | 2019 |
| Howes Property Services (Telford) Ltd | Telford | 2014 |
| Howey Park Management Company Limited | Frodsham | 2016 |
| Howezat Ltd | Eastleigh | 2020 |
| Howgate Property Limited | Edinburgh | 2015 |
| Howland Asset Management Limited | Norwich | 2020 |
| Howlett Councelling Services Ltd | London | 2024 |
| Howley Park Business Village (Leeds) Limited | Leeds | 2007 |
| Howlll Limited | London | 2012 |
| Howorth Limited | London | 2024 |
| Howper 685 Limited | Northampton | 2007 |
| Howson Interiors Limited | Kendal | 2005 |
| Howsons Developments Limited | Ingleton | 2020 |
| Howsons Holdings Limited | Ingleton | 2024 |
| Howto Ltd | Doncaster | 2021 |
| Howto Products Limited | Harrow On The Hill | 2011 |
| Howun (2010) Limited | Barnet | 2010 |
| Howwelink Ltd | Pontefract | 2019 |
| Hoxton Vodka Limited | Henley-On-Thames | 2024 |
| Hoxwell International Group Co., Ltd. | London | 2009 |
| HOY Dorman Group Limited | Craigavon | 2015 |
| Hoyl Capital Ltd | Cromer | 2009 |
| Hoyl FC Ltd | Cromer | 2017 |
| Hoyl Limited | Cromer | 2018 |
| Hoyland Nether WMC Limited | Barnsley | 2016 |
| Hoyle 1964 Limited | Ilkley | 2014 |
| Hoyos Legal Ltd | London | 2021 |
| Hoyport Limited | Kingston Upon Thames | 1985 |
| Hoywell 66 Limited | Abergele | 2013 |
| HOZ Yachting Ltd | London | 2025 |
| HP & DA Limited | London | 2013 |
| HP & HD Ltd | Warrington | 2012 |
| HP Holdings (UK) Limited | Epsom | 2009 |
| HP Rentals Limited | Chesterfield | 1999 |
| HP Sealants Limited | Dudley | 2025 |
| HP7 Limited | Little Chalfont | 2020 |
| HPA Business Services Limited | Hildenborough | 2005 |
| HPA Services Limited | Tonbridge | 2016 |
| HPA Solutions Limited | Tonbridge | 2016 |
| HPB Developments Limited | Ascot | 2015 |
| HPC Global (NI) Limited | Belfast | 2014 |
| HPE EOT Limited | Leeds | 2021 |
| HPE Holdings Ltd | Porthcawl | 2024 |
| HPG Developments Ltd | Coventry | 2012 |
| HPG Industrial Coatings Pension Trustees Limited | Welwyn Garden City | 1998 |
| HPL Services Limited | York | 2008 |
| HPL Staffs Limited | Sutton Coldfield | 1967 |
| HPM Procurement Services Ltd | Hillsborough | 2023 |
| HPP Day Limited | Cambridge | 2018 |
| HPR Plumbing & Heating Ltd | Gloucester | 2023 |
| HPR Talent Limited | Nottingham | 2013 |
| HPS Virtual Assistant Ltd | Torpoint | 2022 |
| HQ Automotive Ltd | Dorking | 2016 |
| HQ Dispatch Ltd | London | 2021 |
| HQ Hotels (Scarborough) Limited | London | 2022 |
| HQ Hotels Limited | London | 2022 |
| HQ Industrial Company Limited | Beckenham | 2019 |
| HQ Laboratories Holdings Limited | Leeds | 2018 |
| HQ Laboratories Services Limited | Leeds | 2018 |
| Hqemp Limited | Leicester | 2016 |
| HR Advise Ltd | Newton Abbot | 2022 |
| HR Concepts Limited | Chichester | 2010 |
| HR Fitness Oxford Ltd | Kidlington | 2023 |
| HR Fractional 100 Ltd | Cardiff | 2023 |
| HR Fractional 15 Ltd | Cardiff | 2023 |
| HR Fractional 16 Ltd | Cardiff | 2023 |
| HR Fractional 18 Ltd | Cardiff | 2023 |
| HR Fractional 19 Ltd | Cardiff | 2023 |
| HR Fractional 2 Ltd | Cardiff | 2023 |