| Hastings Properties Ltd | Real estate | 2023 |
| Hatch Blueprint LLP | | 2011 |
| Haus Property Services Ltd | Real estate | 2025 |
| Haven Group One Ltd | Wholesale & retail | 2018 |
| Haven Import & Export Limited | Wholesale & retail | 2016 |
| Havencall Enterprises Limited | Financial services | 2003 |
| Hawk-Eye Vision Ltd | Administrative & support | 2018 |
| Hawkstone Properties (Beaconsfield) Limited | Real estate | 2018 |
| Hawkstone Properties (Boston) LLP | | 2003 |
| Hawkstone Properties (Chelmsford) LLP | | 2005 |
| Hawkstone Properties (Grimsby) Limited | Real estate | 1997 |
| Hawkstone Properties (Hereford) LLP | | 2007 |
| Hawkstone Properties (Southampton) Limited | Real estate | 2020 |
| Hawkstone Properties Limited | Professional & scientific | 1996 |
| Hawkstone Vale (Clacton) LLP | | 2014 |
| Hawkstone Vale Developments Ltd | Real estate | 2015 |
| Hawne Basin Social Club Limited | Extraterritorial | 2018 |
| Hawthorne Property Holdings Limited | Real estate | 2022 |
| Hayaa Wear Ltd | Wholesale & retail | 2025 |
| Haydon Power Ltd | Professional & scientific | 2019 |
| Hayes Autotechnik (Midlands) Ltd | Wholesale & retail | 2023 |
| Hayes Engines 4 X 4 Limited | Wholesale & retail | 2002 |
| Hayes Medical Services Ltd | Health & social care | 2023 |
| Hayley Green Commercials Limited | Wholesale & retail | 2000 |
| Haymarket Homes Limited | Construction | 2016 |
| Haywood Dunn Developments Limited | Real estate | 2024 |
| Haze Hair Studio Limited | Other services | 2016 |
| HB Technology Consulting Ltd | Information & communication | 2019 |
| HBK Stores Ltd | Wholesale & retail | 2025 |
| HBR Healthcare Ltd | Health & social care | 2025 |
| HC 1143 Limited | Professional & scientific | 2010 |
| HDP Local Inns Ltd | Hospitality | 2022 |
| Head for the Hill Consultancy Limited | Education | 2023 |
| Head for the Hill Ltd | Education | 2020 |
| Headbrook Ltd | Construction | 2002 |
| Headbrook Properties Ltd | Administrative & support | 2022 |
| Headley Meredith Cloud Limited | Professional & scientific | 2019 |
| Headway Financial Management Limited | Professional & scientific | 2008 |
| Healthcare Education & Skills Training Ltd | Education | 2018 |
| Healthcare Junction Ltd | Health & social care | 2022 |
| Healthcareteam Limited | Health & social care | 2021 |
| Heart & Soul Community CIC | Administrative & support | 2013 |
| Heartlight Resonance Ltd | Health & social care | 2023 |
| Heath Media Ltd | Professional & scientific | 2024 |
| Heathermount Grange Management Company Limited | Households | 2019 |
| Heathmill Café Limited | Hospitality | 2026 |
| Hedleys Antiques Limited | Wholesale & retail | 2021 |
| Heeks Holdings Ltd | Financial services | 2026 |
| Heeks Property Ltd | Real estate | 2026 |
| Heemskerk Flowers Limited | Wholesale & retail | 2005 |
| Hellenic Digital Ltd | Information & communication | 2026 |
| Helmer LOW Carbon Services Limited | Professional & scientific | 2011 |
| Helping Hands Stourbridge Limited | Health & social care | 2025 |
| Hemmings Property Group Limited | Real estate | 2021 |
| Hems Holdings Limited | Financial services | 2026 |
| Hems' Holistic Honey Ltd | Wholesale & retail | 2023 |
| Heritage Concept and Design Limited | Construction | 2021 |
| Heritage Oak Restoration Limited | Construction | 2012 |
| Heron Trading Ltd | Wholesale & retail | 2011 |
| Herrevolution Enterprises Limited | Arts & recreation | 2025 |
| Hewitts of Stourbridge Limited | Wholesale & retail | 1987 |
| Hexagon Care Ltd | Health & social care | 2025 |
| Hexagon Commercial Property Limited | Real estate | 2020 |
| Heyboxie Ltd | Wholesale & retail | 2025 |
| Heybridge Belfort Limited | Real estate | 2015 |
| HH Properties (Midlands) Limited | Real estate | 2020 |
| HI2A Ltd | Real estate | 2025 |
| Hickman Hounds Dog Rescue CIC | Other services | 2026 |
| Hicorp 51 Limited | Professional & scientific | 2009 |
| Hicorp 52 Limited | Professional & scientific | 2024 |
| Higgins & Hewins Limited | Manufacturing | 2005 |
| Higgins and Hewins Holdings Limited | Manufacturing | 2013 |
| Higgins Titan Limited | Professional & scientific | 2021 |
| High House Wealth Management Ltd | Financial services | 2013 |
| High Lodge Care Services Limited | Health & social care | 1997 |
| High Quality Tanning Limited | Other services | 2024 |
| High Speed Lasers Limited | Manufacturing | 2007 |
| High Tech Systems Ltd | Manufacturing | 2017 |
| High View Property Consultants Ltd | Real estate | 2018 |
| Highdown Building and Landscaping Limited | Construction | 2023 |
| Highgate Farm Christmas Trees Ltd | Wholesale & retail | 2019 |
| Highland House Acorn Road Management Company Limited | Households | 2003 |
| Highley Steel Limited | Wholesale & retail | 2009 |
| Hilderwood a Limited | Financial services | 2025 |
| Hilderwood W Limited | Financial services | 2025 |
| Hill and Hurley Ltd | Health & social care | 2024 |
| Hill Print Limited | Manufacturing | 2020 |
| Hill Tavern (Clent) Limited | Hospitality | 2025 |
| Hillcroft Care Home Limited | Health & social care | 2020 |
| Hillcroft Park Limited | Hospitality | 1979 |
| Hillgrove Property Developments Limited | Real estate | 2018 |
| Hillgrove Property Holdings Limited | Real estate | 2018 |
| Hillgrove Property Investments Limited | Real estate | 2022 |
| Hills Florist (Midlands) Ltd | Wholesale & retail | 2016 |
| Hills Plumbing and Heating Services Limited | Professional & scientific | 1999 |
| Hillside Court Company Limited | Households | 1994 |
| Himley Live Limited | Arts & recreation | 2026 |
| Hina Luxe Ltd | Wholesale & retail | 2025 |
| Hines Consulting Limited | Administrative & support | 2021 |
| Hipflask Racing Limited | Arts & recreation | 2022 |