| Home and Harbour Property Care Limited | Hospitality | 2025 |
| Home Consultants Limited | Administrative & support | 2019 |
| Home Developer and ALL Services Ltd | Real estate | 2020 |
| Home Finders Limited | Real estate | 2000 |
| Home Selections Limited | Wholesale & retail | 2017 |
| Home Services Direct Limited | Administrative & support | 2004 |
| Home Services Directory Limited | Administrative & support | 2026 |
| Home Space (Essex) Limited | Professional & scientific | 2002 |
| Home Supplies (Wessex) Limited | Wholesale & retail | 1964 |
| Home-Start Ashford & District | Administrative & support | 2004 |
| Homechoice Glazing Limited | Construction | 2021 |
| Homegen Ltd | Construction | 2018 |
| Homelove Care Holdings Ltd | Health & social care | 2025 |
| Homelove Care Ltd | Health & social care | 2023 |
| Homely Blocks Ltd | Real estate | 2026 |
| Homes to Sleep Ltd | Hospitality | 2025 |
| Homeyo Ltd | Households | 2024 |
| Hone Ecology Limited | Professional & scientific | 2009 |
| Hone Innovations Limited | Wholesale & retail | 2020 |
| Honest Construction Network Ltd | Professional & scientific | 2024 |
| Honest Property Services Ltd | Construction | 2020 |
| Honey Brothers Limited | Administrative & support | 2007 |
| Honeyborne Aesthetics Ltd | Other services | 2020 |
| Honeycomb Engineering and Design Ltd | Professional & scientific | 2023 |
| Honeyflakesdesign Ltd | Wholesale & retail | 2022 |
| Honeywood Farm Enterprises Ltd | Agriculture & fishing | 2005 |
| Honour Care Ltd | Health & social care | 2026 |
| Hooden Smokehouse and Cellar Ltd | Hospitality | 2019 |
| Hooden Takeaway Ltd | Hospitality | 2023 |
| Hope Animation Limited | Information & communication | 2010 |
| Hopes Meadow Management Limited | Households | 2023 |
| Hoplite Studio Ltd. | Professional & scientific | 2019 |
| Horgan the Lodge Ltd | Real estate | 2023 |
| Horizon Roofing South East Ltd | Construction | 2024 |
| Horizon Vehicle Contracts Limited | Administrative & support | 2026 |
| Horizon Vehicle Leasing Limited | Administrative & support | 2014 |
| Horizontal Driveways & Landscaping Ltd | Administrative & support | 2025 |
| Horsepower Equestrian Limited | Arts & recreation | 2007 |
| Horsepower Motor Centre Limited | Wholesale & retail | 2002 |
| Horses Smith Ltd | Arts & recreation | 2025 |
| Horsham & Johns Ltd | Real estate | 2022 |
| Horsham Montessori Limited | Education | 2002 |
| Horticarers Landscape Ltd | Administrative & support | 2004 |
| Horticruitment Europe Limited | Professional & scientific | 2005 |
| Horticruitment Limited | Professional & scientific | 1980 |
| Horticruitment UK Limited | Administrative & support | 2004 |
| Hose Express Thurrock (1999) Limited | Manufacturing | 1999 |
| Hot Chef Solutions Ltd | Hospitality | 2011 |
| Hotel Executive Placements Limited | Professional & scientific | 2005 |
| Hotroxx Coaching Limited | Other services | 2024 |
| Hotspot Global Consulting Limited | Information & communication | 2016 |
| Houlton Group Limited | Financial services | 2026 |
| Hourglass Fitness Hawkinge Ltd | Arts & recreation | 2021 |
| House of SAM Production Limited | Information & communication | 2014 |
| Housepass Limited | Administrative & support | 2026 |
| HOW to CUT Ltd | Construction | 2023 |
| Howard Antiques Ltd | Wholesale & retail | 2008 |
| Howell Consulting Services Ltd | Professional & scientific | 2022 |
| Howes Prestige Travel Limited | Transport & logistics | 2025 |
| Howlett Roofing Services Ltd | Construction | 2025 |
| Hoyle Bespoke Homes Limited | Construction | 2026 |
| HP139 Ltd | Manufacturing | 2018 |
| HPH Maintenance Ltd | Construction | 2010 |
| HQ Global Search Ltd | Professional & scientific | 2021 |
| HR Care (Manchester) Limited | Professional & scientific | 1999 |
| HR Club Ltd | Real estate | 2021 |
| HR Go (Ashford) Limited | Professional & scientific | 2005 |
| HR Go (Birmingham) Limited | Professional & scientific | 2002 |
| HR Go (Bishop's Stortford) Limited | Professional & scientific | 1990 |
| HR Go (Brighton) Limited | Professional & scientific | 2005 |
| HR Go (Crawley) Limited | Professional & scientific | 1998 |
| HR Go (Doncaster) Limited | Professional & scientific | 1999 |
| HR Go (Dover) Limited | Professional & scientific | 1998 |
| HR Go (Driving Fenlands) Limited | Professional & scientific | 1997 |
| HR Go (Driving North) Limited | Professional & scientific | 1987 |
| HR Go (Driving South) Limited | Professional & scientific | 2002 |
| HR Go (Driving) Limited | Professional & scientific | 2002 |
| HR Go (Glasgow) Limited | Professional & scientific | 2004 |
| HR Go (Great Yarmouth) Limited | Professional & scientific | 1999 |
| HR Go (Huntingdon) Limited | Professional & scientific | 1996 |
| HR Go (Ipswich) Limited | Professional & scientific | 2002 |
| HR Go (Kent) Limited | Administrative & support | 1990 |
| HR Go (Letchworth) Limited | Professional & scientific | 2002 |
| HR Go (Liverpool) Limited | Professional & scientific | 1998 |
| HR Go (Lowestoft) Limited | Professional & scientific | 2005 |
| HR Go (Newcastle) Limited | Professional & scientific | 1999 |
| HR Go (Northampton) Limited | Professional & scientific | 2002 |
| HR Go (Norwich) Limited | Professional & scientific | 2002 |
| HR Go (Somerset) Limited | Professional & scientific | 2004 |
| HR Go (Stockport) Limited | Professional & scientific | 2001 |
| HR Go Accountancy Recruitment Limited | Professional & scientific | 2006 |
| HR Go Business Solutions Limited | Professional & scientific | 1998 |
| HR Go Call Centre Recruitment Limited | Professional & scientific | 2002 |
| HR Go Care Limited | Professional & scientific | 2005 |
| HR Go City Limited | Financial services | 1998 |
| HR Go Education (E&Se) Limited | Professional & scientific | 1998 |
| HR Go Education Recruitment Limited | Professional & scientific | 2002 |
| HR Go PLC | Professional & scientific | 1967 |
| HR Go Plymouth Ltd | Professional & scientific | 1998 |
| HR Go Recruit Ventures Limited | Professional & scientific | 1996 |