| Home and Cane Limited | Wholesale & retail | 2010 |
| Home and Energy Solutions Ltd | Other services | 2018 |
| Home and House Limited | Professional & scientific | 2018 |
| Home Bright Ltd | Real estate | 2017 |
| Home Care (EC) Ltd | Information & communication | 2023 |
| Home Farm (Nacton) Limited | Agriculture & fishing | 2002 |
| Home Service (N.E.) Limited | Wholesale & retail | 2007 |
| Home-Start Suffolk | Health & social care | 2004 |
| Homeart TEX. Ltd | Wholesale & retail | 2021 |
| Homedale Window Cleaning Limited | Administrative & support | 2018 |
| Homeland Hunan Ltd | Hospitality | 2022 |
| Homes by Hood Ltd | Real estate | 2018 |
| Homes of Elegance - Whitby Ltd | Real estate | 2022 |
| Homes of Elegance Ltd | Real estate | 2022 |
| Homes Transformed Limited | Real estate | 2010 |
| Homes Your Way Ltd | Real estate | 2020 |
| HOMES4LIFE Partnership Ltd | Financial services | 2024 |
| Homesleek Limited | Wholesale & retail | 2024 |
| Homesplex Ltd | Wholesale & retail | 2026 |
| Homestead Care Service Limited | Administrative & support | 1994 |
| Homestyle U.K. Windows Limited | Other services | 1999 |
| Homestyle UK Developments Limited | Manufacturing | 2023 |
| Homiq Portfolio Limited | Construction | 2019 |
| Homiq Properties Ltd | Households | 2025 |
| Honest Nutrition Limited | Wholesale & retail | 2023 |
| Honey & AG Ltd | Real estate | 2022 |
| Honey & SON Property Ltd | Real estate | 2024 |
| Honeycomb Creative Limited | Information & communication | 2022 |
| Honeyrose Products Limited | Manufacturing | 1910 |
| Honeyrose Sales Limited | Professional & scientific | 1992 |
| Honeysuckle-Our World Ltd | Health & social care | 2024 |
| HOO Designs Limited | Professional & scientific | 2021 |
| Hood Building & Carpentry Ltd | Construction | 2015 |
| Hook Communications Ltd | Professional & scientific | 2008 |
| Hooper's Business Ltd | Other services | 2018 |
| Hoopers Architects Limited | Professional & scientific | 2007 |
| Hoopers Properties Ltd | Real estate | 2020 |
| Hoopoe Group Ltd | Manufacturing | 2019 |
| Hope @6 Ltd | Real estate | 2020 |
| Hope Church, Ipswich | Other services | 2010 |
| Hope Conferencing Ltd | Hospitality | 2021 |
| Hopehudson Associates Limited | Professional & scientific | 2021 |
| Hopsters Bury ST Edmunds Limited | Hospitality | 2025 |
| Hopsters Craft Beer Limited | Hospitality | 2024 |
| Hopsters Felixstowe Limited | Hospitality | 2022 |
| Hopton Healthcare Ltd | Health & social care | 2025 |
| Horizon Creative Services Limited | Arts & recreation | 2012 |
| Horizon Ilford 2022 Limited | Households | 2022 |
| Horizon Nexus Holdings Ltd | Financial services | 2024 |
| Horizon Resourcing Group Ltd | Administrative & support | 2022 |
| Horizon Scholars Academy Limited | Education | 2026 |
| Horizon Search & Selection Limited | Administrative & support | 2011 |
| Horizons Provision Ltd | Education | 2026 |
| Hornby & Mason Ltd | Other services | 2020 |
| Horsemat Limited | Wholesale & retail | 2006 |
| Horses Transport Ltd | Transport & logistics | 2025 |
| Horsfordbridge Ltd | Hospitality | 2011 |
| Hort Couture Limited | Other services | 2005 |
| Hoskins Estate Planning Ltd | Professional & scientific | 2025 |
| Hospitality Software Development Services Ltd | Information & communication | 2011 |
| Houchell Mortgages Limited | Financial services | 2016 |
| Hounsfield Boilers Limited | Manufacturing | 2007 |
| Hourmil Limited | Administrative & support | 2024 |
| House Key Properties Ltd | Real estate | 2024 |
| House Live Solution Ltd | Wholesale & retail | 2018 |
| House of Bert Ltd | Professional & scientific | 2024 |
| House of Eguye Limited | Real estate | 2025 |
| House of Hair (Suffolk) Ltd | Other services | 2020 |
| House of Hair and Beauty (Ipswich) Limited | Other services | 2019 |
| House of Ottaviano Limited | Extraterritorial | 2007 |
| House of Voss Properties Ltd | Real estate | 2020 |
| Household UFS Community Interest Company | Health & social care | 2024 |
| Housemartin's Maintenance Company Limited | Other services | 1989 |
| Howard Market Place Ltd | Financial services | 2022 |
| Howard Osborn Properties Limited | Real estate | 2021 |
| Howard Rotavator Company Limited | | 1951 |
| Howtex | Financial services | 2016 |
| HPR Consultants Ltd | Professional & scientific | 2013 |
| HPY Ipswich Ltd | Arts & recreation | 2024 |
| HR & Employment Relations Consulting Services Limited | Administrative & support | 2014 |
| HR Rewired Ltd | Professional & scientific | 2021 |
| HRA East Ltd | Wholesale & retail | 2018 |
| Hristo's Transport Ltd | Transport & logistics | 2023 |
| Hrlegal Limited | Professional & scientific | 2003 |
| Hrosp Consulting Limited | Professional & scientific | 2022 |
| Hruman Ltd | Administrative & support | 2024 |
| HRV & MT Ltd | Other services | 2018 |
| HSA Accountants Limited | Professional & scientific | 2016 |
| HSB Pole Ltd | Administrative & support | 2026 |
| HSE Logic Ltd | Real estate | 2025 |
| HSS Properties Ipswich Ltd | Real estate | 2024 |
| HT & Power Cleaning Solutions Limited | Administrative & support | 2022 |
| HT Youngs Fish Ltd | Wholesale & retail | 2024 |
| HTG Investments Limited | Hospitality | 2013 |
| HTG Trading Limited | Wholesale & retail | 1984 |
| HTM Supplies Ltd | Wholesale & retail | 2024 |
| Hubbard Products Limited | Manufacturing | 2007 |
| Hucama Analytics Limited | Administrative & support | 2019 |
| Huckleberry Floral Design Limited | Wholesale & retail | 2023 |
| Hudson Chestnut Consultancy Ltd | Professional & scientific | 2021 |