| Halo Chesterfield Ltd | Wholesale & retail | 2024 |
| Halo Performance Ltd | Wholesale & retail | 2020 |
| Halo Precision Engineering Ltd | Manufacturing | 2018 |
| Halocline Brew Co Ltd | Manufacturing | 2026 |
| Hambleton Bard International Limited | Manufacturing | 1977 |
| Hambleton Bard Limited | Manufacturing | 1975 |
| Hambleton Stone Machinery Services Ltd | Manufacturing | 2015 |
| Hamilton Cables Limited | Wholesale & retail | 1990 |
| Hamilton House Nursery & Pre-School Ltd | Education | 2014 |
| Hamilton Invest Ltd | Real estate | 2025 |
| Hamlet Crescent Ltd | Professional & scientific | 2016 |
| Hammerhead Shark Ltd | Professional & scientific | 2018 |
| Hammond & Co (UK) Limited | Professional & scientific | 2012 |
| Hammond Wills and Trusts Limited | Professional & scientific | 2024 |
| Hampsey Limited | Construction | 2007 |
| Hampton Architectural Ltd | Wholesale & retail | 2019 |
| Hanci 26 Limited | Hospitality | 2019 |
| Hand Carwash Clay Cross Ltd | Administrative & support | 2024 |
| Handle With Care Seniors Ltd | Other services | 2019 |
| Handle With Care Training Limited | Education | 2001 |
| Handley Care Ltd | Public administration | 2017 |
| Handley Care Services Limited | Health & social care | 2008 |
| Handley Homecare Ltd | Health & social care | 2023 |
| Handy Maids Limited | Administrative & support | 2011 |
| Handyman Solutions (Chesterfield) LLP | | 2019 |
| Hannah Watkins Coaching Limited | Professional & scientific | 2025 |
| Hannah's House Pilates Limited | Arts & recreation | 2024 |
| Happy Endings Chesterfield Limited | Financial services | 2019 |
| Happy JQ Limited | Manufacturing | 2023 |
| Happy Nails Chesterfield Ltd | Other services | 2017 |
| Happy Tails Rehoming Ltd | Other services | 2020 |
| Happywired Ltd | Information & communication | 2016 |
| Harbar Group Services Ltd | Administrative & support | 2023 |
| Harbour Home Properties Ltd | Real estate | 2022 |
| Harbour Risk Advisory Ltd | Professional & scientific | 2025 |
| Harcourt Training and Assessment Ltd | Education | 2023 |
| Hardcase DAT Limited | Professional & scientific | 2016 |
| Hardy Construction Services Limited | Construction | 2020 |
| Hare and Hounds Barlow Limited | Hospitality | 2026 |
| Harleys Hairdressing (Chesterfield) Limited | Other services | 2017 |
| Harmony Wealth Management Limited | Professional & scientific | 2009 |
| Harnest Limited | Hospitality | 2013 |
| Harold Lilleker & Sons Limited | Other services | 2003 |
| Haroon and Sons Medical Services Limited | Health & social care | 2019 |
| Harperhill Ltd | Construction | 2021 |
| Harris Electrical & Security Ltd | Construction | 2018 |
| Harris Plumbing Co Ltd | Construction | 2019 |
| Harris Property and Investment Co Limited | Real estate | 2025 |
| Harrison Company Holdings Limited | Financial services | 2024 |
| Harrison's Plumbing & Maintenance Ltd | Construction | 2022 |
| Harry’S (Chesterfield) Limited | Hospitality | 2026 |
| Harvest Associates Limited | Financial services | 2003 |
| Harvey Oliver Properties Limited | Real estate | 2018 |
| Harvmarch Limited | Real estate | 2020 |
| Harwood Stone Design Ltd | Professional & scientific | 2025 |
| Hasiats Ltd | Professional & scientific | 2014 |
| Hasland Auto Centre Limited | Wholesale & retail | 2021 |
| Hasland Hops Limited | Hospitality | 2019 |
| Hasland House (HE) Limited | Hospitality | 2018 |
| Hasland Road Management Company Limited | Real estate | 2022 |
| Hasland Testing Centre Ltd | Professional & scientific | 2009 |
| Hassocky Holdings Ltd | Financial services | 2020 |
| Hassop Investments Holdings Limited | Financial services | 2017 |
| Hassop Investments Limited | Professional & scientific | 2020 |
| Hassop Investments Topco Limited | Financial services | 2023 |
| Hassop Property Holdings Limited | Real estate | 2023 |
| Hassop Riverside House Limited | Hospitality | 2019 |
| Hastec Automation Limited | Professional & scientific | 2021 |
| Hastec Rail Limited | Professional & scientific | 2019 |
| Hastings Freight Group Limited | Financial services | 2021 |
| Hastings Freight Holdings Limited | Financial services | 2015 |
| Hastings Freight Limited | Transport & logistics | 2002 |
| Hastings Medical Limited | Wholesale & retail | 2023 |
| Hatch Design Consultancy Limited | Professional & scientific | 2024 |
| Hathersage Bakery Limited | Wholesale & retail | 2022 |
| Hatters Grove Associates Limited | Professional & scientific | 2006 |
| Hauff-Technik UK Limited | Wholesale & retail | 2022 |
| Havenpoint Wellbeing Ltd | Public administration | 2026 |
| Hawk Access Ltd | Construction | 2024 |
| Hawkins Locksmiths Limited | Administrative & support | 2022 |
| Haxton Koyander Architecture Ltd | Professional & scientific | 2014 |
| Hayes Holdings (Sheffield) Ltd | Real estate | 2007 |
| Hayes Worth & Stone Accountancy Services (Manchester) Ltd | Professional & scientific | 2019 |
| Hayes Worth & Stone Accountancy Services Ltd | Professional & scientific | 2018 |
| Haywood Engineering and Design Services Ltd | Professional & scientific | 2006 |
| Haywood Roofing Contractors Limited | Construction | 2022 |
| Hazel Court Barlborough Management Limited | Real estate | 2015 |
| Hazel Drive Management Company Limited | Households | 2009 |
| Hazelford Developments Ltd | Real estate | 2019 |
| HB Consultancy Limited | Administrative & support | 2020 |
| Hbchuds Limited | Wholesale & retail | 2025 |
| Hbcretford Limited | Wholesale & retail | 2025 |
| Hbcsharrowvale Limited | Wholesale & retail | 2025 |
| HBS Group Services Limited | Manufacturing | 1995 |
| HCD Training Limited | Health & social care | 2009 |
| HCG Industrial Services Ltd | Construction | 2025 |
| HCO 1000 Limited | Professional & scientific | 2000 |
| HCO 2000 Limited | Professional & scientific | 2000 |
| HCO 3000 Limited | Professional & scientific | 2000 |
| HCO 4000 Limited | Professional & scientific | 2000 |