| Hazel Grove Cars Limited | Wholesale & retail | 2021 |
| HB & MP Properties | Real estate | 2003 |
| HB Property Management Ltd | Other services | 2006 |
| HC 1265 Limited | Hospitality | 2016 |
| Hcrg Care Custodial Services Ltd | Health & social care | 2022 |
| HDI Resource Limited | Professional & scientific | 2005 |
| Hdsc Property Management Limited | Real estate | 2024 |
| Hdtv UK Limited | Other services | 2005 |
| Hearing + Wellness Hale Limited | Wholesale & retail | 2021 |
| Heath Lane Nurseries Ltd | Agriculture & fishing | 2017 |
| Heathdown Properties Limited | Real estate | 2006 |
| Heathwood Nurseries Limited | Agriculture & fishing | 1999 |
| Heaton Mersey Boarding Cattery Limited | Health & social care | 2003 |
| Hedman Hotels Limited | Extraterritorial | 2004 |
| Heeley Properties Limited | Administrative & support | 2013 |
| Hekatech Limited | Information & communication | 2002 |
| Helen Corcoran Ltd. | Manufacturing | 1995 |
| Henry D Johnstone Jewellers Limited | Wholesale & retail | 2003 |
| Heritage Fitted Furniture Limited | Construction | 2003 |
| HES Services NW Limited | Construction | 2007 |
| HG Solutions Limited | Professional & scientific | 2003 |
| Hi-Fi Stereo Limited | Wholesale & retail | 2001 |
| Hi-Flame Fireplace (UK) Limited | Wholesale & retail | 2007 |
| Hibbert Engineering Services Limited | Manufacturing | 1998 |
| Hibberts LLP | | 2006 |
| Hicksons Heating & Plumbing Services Limited | Construction | 2003 |
| Higham Construction Limited | Construction | 1996 |
| Highdale Decorators Limited | Construction | 2005 |
| Highgate (Bowdon) Management Company Limited | Households | 1995 |
| Highland Property Management Limited | Real estate | 1991 |
| Hill Top Day Nursery Limited | Education | 2002 |
| Hilltop Surveyors Ltd | Professional & scientific | 2003 |
| Hinchliffe Holmes (Winsford) Ltd | Real estate | 2026 |
| Hindley & Carr Limited | Wholesale & retail | 2004 |
| Hiqu Ltd | Wholesale & retail | 2003 |
| Hmhr Ltd | Administrative & support | 2005 |
| Hodgson Fold Limited | Professional & scientific | 2016 |
| Holden & Prescott Ltd | Real estate | 1998 |
| Hollin Lane Estates Limited | Extraterritorial | 2000 |
| Hollins & Hollinshead Limited | Wholesale & retail | 2006 |
| Hollins Building Supplies Limited | Wholesale & retail | 1976 |
| Hollins Lane Properties Limited | Real estate | 1983 |
| Holmes, Terry and Company Limited | Real estate | 1963 |
| Homedel Ltd | Transport & logistics | 2023 |
| Homestead & Hide Limited | Wholesale & retail | 2025 |
| Homestead Properties (Developments) Limited | Real estate | 2004 |
| Honeycray Limited | | 1977 |
| Hooklift Trailer Solutions Ltd | Manufacturing | 2006 |
| Hooton Chase Ltd | Health & social care | 2007 |
| Hopewiser Limited | Information & communication | 1982 |
| Hormone Harmony Limited | Health & social care | 2023 |
| Horsfields (Barrow) Limited | Financial services | 1973 |
| Hortico Plants Ltd | Wholesale & retail | 2024 |
| Hosny-Abohatab MED Ltd | Health & social care | 2023 |
| Hospital Anaesthetic Services Ltd | Health & social care | 2019 |
| Hospital GAS Board Ltd | Health & social care | 2019 |
| Houghton Technical Services Limited | Construction | 2015 |
| House and Residential Properties Limited | Construction | 2002 |
| Houston and Sons Limited | Wholesale & retail | 1957 |
| Howard Barlow Investments Limited | | 1979 |
| Howco Limited | | 1972 |
| Hoysons Jewellers Limited | Wholesale & retail | 2006 |
| HRC Partnership | | 1998 |
| HRE Kirkby Limited | Administrative & support | 2013 |
| Hubtivity Limited | Administrative & support | 2023 |
| Hulme Builders Limited | Construction | 2002 |
| Hulme Hall Properties Ltd | Financial services | 2003 |
| Hunter Roberts Consulting Limited | Professional & scientific | 2007 |
| Hunting Lodge Mews Management Company Limited | Other services | 1986 |
| Hurlstone Management Limited | Professional & scientific | 1986 |
| Hyde Club Limited | Arts & recreation | 1875 |
| Hyde Demolition (UK) Limited | Construction | 2009 |
| Hydraulic Pneumatic Services Ltd. | Manufacturing | 2003 |
| Hydraulics Online Ltd | Wholesale & retail | 2004 |
| HZT Consulting Limited | Professional & scientific | 2025 |
| I & a Bait Limited | Agriculture & fishing | 2005 |
| I & M Williams Limited | Financial services | 2001 |
| I Contact Media Limited | Professional & scientific | 1999 |
| I M O Group Limited | Professional & scientific | 1986 |
| I.M.S. Recruitment Limited | Administrative & support | 2000 |
| IAN Grange Limited | Other services | 1971 |
| IAN Morris Electrical Ltd. | Construction | 2006 |
| IAN Sandall Limited | Information & communication | 1991 |
| Iauto Limited | Wholesale & retail | 1999 |
| Iceasi | Education | 2022 |
| Iconichem Group Limited | Manufacturing | 2015 |
| ID2U Limited | Manufacturing | 2004 |
| Ideal Engineering Support Ltd | Professional & scientific | 2007 |
| IDG Holdings Limited | Professional & scientific | 2000 |
| IFA Mentor Ltd | Professional & scientific | 2002 |
| Impact Dental Ltd | Health & social care | 2023 |
| Impact Hustlers Ltd | Information & communication | 2017 |
| Impact Servco Ltd | Wholesale & retail | 2020 |
| Impel Innovations (1) Limited | Manufacturing | 2021 |
| Impey & Company Limited | Administrative & support | 2000 |
| IN Loving Memory Limited | Information & communication | 1998 |
| Incognito INK Limited | Wholesale & retail | 1998 |
| Incolor Limited | Professional & scientific | 2000 |
| Indus Textiles Ltd | Wholesale & retail | 2018 |
| Industrial Design Associates International (UK) Ltd | Professional & scientific | 2020 |