| High Meadow Management Services (Hednesford) Limited | Households | 2005 |
| High Tech Automotive Parts Limited | Wholesale & retail | 2011 |
| Highlands Horizon Ltd | Other services | 2022 |
| Highsight Limited | Professional & scientific | 2015 |
| Hill Education Consultancy Limited | Education | 2023 |
| Hill Maintenance Limited | Construction | 2016 |
| Hillian Music Limited | Information & communication | 2003 |
| Hillmax Limited | Professional & scientific | 2016 |
| Hillside Services Limited | Administrative & support | 1999 |
| Hilton Main Homes Limited | Construction | 2019 |
| Himley Electrical Limited | Construction | 2019 |
| Hindley Ashwood Court Ltd | Health & social care | 2015 |
| Hippo Heat Ltd | Construction | 2021 |
| HIRE2RUN Ltd | Administrative & support | 2024 |
| Hiremech Holdings Limited | Financial services | 2002 |
| Hiremech Limited | Administrative & support | 1998 |
| Hiru Systems Ltd | Information & communication | 2026 |
| Hitea WS12 Ltd | Hospitality | 2024 |
| Hitec Lift Trucks Limited | Wholesale & retail | 2001 |
| Hive Lettings Limited | Real estate | 2019 |
| HJV Investments Ltd | Construction | 2019 |
| HKL Property Investments Ltd | Real estate | 2020 |
| HKM Sports Equipment (UK) Limited | Administrative & support | 2020 |
| Hoang Property Limited | Real estate | 2025 |
| Hodson Holding Ltd | Information & communication | 2024 |
| Holland Communications Ltd | Information & communication | 2019 |
| Holland Lloyd Limited | Professional & scientific | 2019 |
| Hollies Farm Holdings Ltd | Real estate | 2018 |
| Hollies Logistic Company Limited | Transport & logistics | 2015 |
| Hollingworth Property Holdings Ltd | Financial services | 2025 |
| Hollingworth SPV Ltd | Real estate | 2025 |
| Holly Marcella Deakin (HMD) Limited | Professional & scientific | 2024 |
| Holly Plumbing Services Limited | Construction | 2008 |
| Hollybox Civils Limited | Construction | 2018 |
| Hollybox Limited | Construction | 1999 |
| Hollybox Properties Ltd | Real estate | 2019 |
| Hollygrove Electrical Limited | Construction | 2016 |
| Holmax Truck Wash Ltd | Administrative & support | 2023 |
| Holmes Consult Limited | Professional & scientific | 2025 |
| Holmes Residential Developments (Phase 1) Limited | Construction | 2016 |
| Holmesdale CH Ltd | Health & social care | 2023 |
| Holmleighch Ltd | Health & social care | 2024 |
| Home Crafted Furniture Ltd | Manufacturing | 2025 |
| HOMENETWORKS4U Limited | Information & communication | 2017 |
| Homes & Industrial Ltd | Real estate | 2010 |
| Homes of Eden Limited | Real estate | 2011 |
| Honey PAY Limited | Administrative & support | 2020 |
| Honeyglen Plastic Products Ltd | Manufacturing | 2024 |
| Honeysuckle Pastures Ltd | Extraterritorial | 2022 |
| Hose Line Hydraulics Limited | Manufacturing | 2015 |
| Hoses Direct Limited | Wholesale & retail | 2000 |
| House of Froy Ltd | Administrative & support | 2015 |
| Houses of G&G Fraser Limited | Real estate | 2026 |
| Housing H&S Compliance UK Ltd | Professional & scientific | 2018 |
| Howe Home Design Ltd | Manufacturing | 2023 |
| HPG Serviced Accommodation Ltd | Real estate | 2024 |
| HPT 02 Limited | Arts & recreation | 2014 |
| HPT 22 Limited | Administrative & support | 2016 |
| HR Saint Limited | Professional & scientific | 2021 |
| HRC Construction Ltd | Construction | 2011 |
| HS Bargains Ltd | Wholesale & retail | 2025 |
| Hsar Properties Ltd | Real estate | 2021 |
| HSG Construction Limited | Construction | 2020 |
| HSS Consultancy Midland Ltd Ltd. | Professional & scientific | 2022 |
| Hudson & Wolfe Ltd | Wholesale & retail | 2018 |
| Hudson Homes (SW) Ltd | Real estate | 2023 |
| Hudson Property Care Ltd | Households | 2025 |
| Hughes Professional Services Ltd | Administrative & support | 2012 |
| Human Canvas Limited | Other services | 2014 |
| Hung Like a BAT Rigging Ltd | Arts & recreation | 2021 |
| Hunger Monger Ltd | Hospitality | 2022 |
| Hunter Davies (Bloxwich) Limited | Administrative & support | 2001 |
| Huntington Accountancy Services Limited | Professional & scientific | 2007 |
| Huntsmans Building Services Limited | Construction | 2009 |
| Husky Heating & GAS Services Ltd | Other services | 2017 |
| Hutch Flooring Limited | Construction | 2012 |
| Hybrid Procurement Ltd | Manufacturing | 2019 |
| Hydcomp Limited | Manufacturing | 2008 |
| Hydralands Limited | Construction | 1981 |
| Hydraline Engineering Limited | Manufacturing | 1993 |
| Hydraquip Hose & Hydraulics Limited | Wholesale & retail | 2003 |
| Hygienic Concepts Consumable Supplies Limited | Wholesale & retail | 2013 |
| Hygienic Concepts Limited | Extraterritorial | 2013 |
| Hygienic Holdings Limited | Water & waste | 2017 |
| I and G Acumen Ltd | Real estate | 2015 |
| I G M Robotic Systems Limited | Manufacturing | 1988 |
| I J S Car & Commercial Services Limited | Manufacturing | 2016 |
| I LET Ltd | Real estate | 2016 |
| I Nails @ UK Ltd | Other services | 2026 |
| I Screen ADS Limited | Other services | 2009 |
| I-On Academy Ltd | Education | 2024 |
| I.E.C. Elite Developments Limited | Real estate | 2011 |
| I.L.F. Ltd | Administrative & support | 2003 |
| IAN Evans (Cannock) Limited | Construction | 2002 |
| IAN France Visuals Limited | Professional & scientific | 2022 |
| IAN Hill Music Limited | Arts & recreation | 1982 |
| IAN Lockett Cars Limited | Wholesale & retail | 2022 |
| IAN Tipper Professional Decorating Ltd | Construction | 2025 |
| Ian's Eggs Limited | Wholesale & retail | 2007 |
| IB Properties Limited | Hospitality | 2016 |