| Heli-Odyssey LLP | | 2023 |
| Hell's Media Ltd | Manufacturing | 2023 |
| Hellada Ltd | Real estate | 2023 |
| Hello Fish Limited | Wholesale & retail | 2020 |
| Hello Kent Ltd | Wholesale & retail | 2020 |
| Hello-Addition Ltd | Professional & scientific | 2025 |
| Helm Ridge Ltd | Wholesale & retail | 2024 |
| Help US Help CIC | Education | 2024 |
| Hemisphere Studios Limited | Information & communication | 2026 |
| HEN & Duckhurst Professional Services Ltd | Professional & scientific | 2015 |
| Henchurch Lane Financial Services Ltd | Financial services | 2014 |
| Henderson Group Developments Ltd | Construction | 2021 |
| Henderstone Limited | Manufacturing | 2008 |
| Heneghan Property Investments Ltd | Real estate | 2021 |
| Hengill Ltd | Wholesale & retail | 2020 |
| Heni's Luxury Streat Food Ltd | Hospitality | 2024 |
| Henley Rose Construction Limited | Construction | 2019 |
| Henry Cooper Property Limited | Real estate | 2016 |
| Henry Good Limited | Manufacturing | 2009 |
| Henry Reeves & Co Limited | Professional & scientific | 2017 |
| Henrys Static Repair Ltd | Manufacturing | 2026 |
| Hepdrive Limited | Administrative & support | 2020 |
| Herbs Plus Direct Limited | Manufacturing | 2001 |
| Heritage Crescent Ltd | Real estate | 2024 |
| Heritage Lighting Matters Ltd | Manufacturing | 2019 |
| Heritage Taverns Limited | Hospitality | 1993 |
| Heritage Taxi Co Limited | Transport & logistics | 2025 |
| HERITAGE93 Ltd | Education | 2025 |
| Herne Bay Health Care Limited | Health & social care | 2016 |
| Herne Bay Integrated Care Limited | Health & social care | 2016 |
| Hero Education Limited | Education | 2020 |
| Heron Consultancy Limited | Administrative & support | 1996 |
| Herriott Services Ltd | Construction | 2026 |
| Herty Ltd | Wholesale & retail | 2024 |
| Heselden Properties Limited | Real estate | 2014 |
| Hess Medical Imaging Limited | Health & social care | 2018 |
| Hessia Limited | Professional & scientific | 2025 |
| Hestia Holdings (Kent) Ltd | Real estate | 2016 |
| Hetty Betty Limited | Manufacturing | 2023 |
| Hetty Rose Limited | Manufacturing | 2007 |
| Hever Road Management Limited | Administrative & support | 2000 |
| Hewdor Properties Limited | Other services | 2007 |
| HEX Design Solutions Limited | Professional & scientific | 2013 |
| HEY Fella Limited | Hospitality | 2019 |
| HF Corporate Services Limited | Financial services | 1995 |
| HFA Property Ltd | Construction | 2022 |
| HG Supplies Ltd | Wholesale & retail | 2025 |
| HGM Services Ltd | Transport & logistics | 2015 |
| HH Communications Limited | Professional & scientific | 2019 |
| Hi-Tec Group Holdings Limited | Financial services | 2026 |
| Hi-Tec Spray Limited | Manufacturing | 1987 |
| Hibluejay Ltd | Wholesale & retail | 2023 |
| Hickmott Plant Services Limited | Manufacturing | 2018 |
| Hickson Construction Consultants Ltd | Construction | 2025 |
| Hideout Ltd | Professional & scientific | 2012 |
| High END Hoarding Ltd | Construction | 2020 |
| High Flight Training Solutions Limited | Transport & logistics | 2015 |
| High Halstow Pre-School Limited | Education | 2013 |
| High Jinks Productions Limited | Information & communication | 2006 |
| High Life Clinic Limited | Health & social care | 2019 |
| High Q Manufacturing Ltd | Manufacturing | 2011 |
| High Standard Scaffolding Ltd | Construction | 2020 |
| High Standings Ltd | Hospitality | 2016 |
| High Street Car Servicing Ltd | Wholesale & retail | 2019 |
| High Weald Interiors Limited | Wholesale & retail | 2021 |
| High Works Scaffolding Ltd. | Construction | 2017 |
| High-Tech Development Ltd | Information & communication | 2014 |
| Higher Elevation Limited | Wholesale & retail | 2000 |
| Highgrove Property & Landscape Ltd | Construction | 2026 |
| Highland Services Limited | Administrative & support | 2023 |
| Highlands Park Kent Limited | Hospitality | 2025 |
| Highleaf Limited | Administrative & support | 2014 |
| Highleaf Tree Services Ltd | Administrative & support | 2024 |
| Highline Mechanical Limited | Construction | 2018 |
| Highpoint Developments Limited | Construction | 1998 |
| Highridge Accountancy Limited | Professional & scientific | 2019 |
| Highridge Holiday Lets Limited | Real estate | 2020 |
| Highrise Capital Ltd | Real estate | 2021 |
| Highrise Investments Ltd | Real estate | 2016 |
| Highscore Scaffolding (2003) Limited | Construction | 2003 |
| Highscore Scaffolding LLP | | 2025 |
| Highview Investments (Essex) Limited | Real estate | 2016 |
| Highway Commercial Services Ltd | Professional & scientific | 2024 |
| Hiiweb Ltd | Professional & scientific | 2023 |
| Hilden Swimming Pools Limited | Construction | 2023 |
| Hilec Limited | Construction | 2020 |
| Hill Fresh Fruit Ltd | Agriculture & fishing | 1998 |
| Hill-Rise Court Management Company Limited | Real estate | 2004 |
| Hill-Wood & Co. (Kent) Limited | Professional & scientific | 2016 |
| Hill-Wood & YOU (Kent) LLP | | 2024 |
| Hillbesca Properties Limited | Real estate | 1956 |
| Hillrest Property Limited | Financial services | 2023 |
| Hills Pharma Research Limited | Professional & scientific | 2015 |
| Hillside Court (Maidstone) Management Company Limited | Households | 2024 |
| Hillstone Homes South Ltd | Construction | 2016 |
| Hilltown Ltd | Extraterritorial | 2022 |
| Hillway Healthcare Limited | Health & social care | 2023 |
| Hindle Consultancy Ltd | Professional & scientific | 2022 |
| Hinely Properties Ltd | Real estate | 2024 |
| Hines Properties Limited | Households | 2024 |