| Hennessy Emporium Ltd | Wholesale & retail | 2024 |
| Hennessy Hospitality Ltd | Hospitality | 2020 |
| Henson Heating Ltd | Construction | 2012 |
| Heritage Orchestras | Arts & recreation | 1986 |
| Heronsbrook Flat Management Limited | Households | 1992 |
| Hever Business Centre Ltd | Real estate | 2018 |
| Hever Cars Limited | Transport & logistics | 2025 |
| Hever Countryside Services Limited | Agriculture & fishing | 2022 |
| Hever Countryside Training Limited | Agriculture & fishing | 2017 |
| Hever DR Coffee Shop Ltd | Hospitality | 2024 |
| Hever Hotel Management Limited | Real estate | 2016 |
| Hever Park Homes Ltd | Hospitality | 2020 |
| Hever Property Company Limited | Real estate | 2016 |
| Hever Taxis Limited | Transport & logistics | 2026 |
| HG Wealth Planning Limited | Financial services | 2021 |
| High Brooms Estate Management Limited | Households | 1984 |
| High Weald Haven Limited | Construction | 2022 |
| Highdene Residents Management Company Limited | Households | 1982 |
| Hipperson Consulting Ltd | Other services | 2018 |
| HJC Electrical Services Ltd | Construction | 2024 |
| HM Engineering Group Ltd | Financial services | 2022 |
| HM Racing Ltd | Extraterritorial | 2011 |
| Hoath House LLP | | 2015 |
| Hoath House Weddings Ltd | Other services | 2018 |
| Hoath Properties LLP | | 2016 |
| Holbrook Trees LLP | | 2023 |
| Holly Tree (Edenbridge) Management Limited | Households | 2017 |
| Holmden Court Limited | Households | 1999 |
| Holmesdale Management Company (Nutfield) Limited | Households | 1998 |
| Holmesdale Park Freehold Limited | Households | 2004 |
| Holtye Golf Club Ltd | Arts & recreation | 2023 |
| Holusi Ltd | Financial services | 2024 |
| Homefield Property Ltd | Real estate | 2022 |
| Honeypot Farm Management Limited | Administrative & support | 2019 |
| Hoop Technology Ltd | Professional & scientific | 2025 |
| Hope Williams & Co Services Ltd | Professional & scientific | 2020 |
| Horne Park Management Drive & Drainage Co Ltd | Real estate | 2025 |
| Hostable Limited | Real estate | 2026 |
| House of Envy Inc Ltd | Other services | 2022 |
| House of Health Hever Limited | Arts & recreation | 2025 |
| HOW Green Electrical Services Ltd | Construction | 2024 |
| HOW Green Nursery Limited | Administrative & support | 2003 |
| Huntworth Properties Limited | Construction | 2017 |
| Hydralax Limited | Wholesale & retail | 2025 |
| I G Equine Boutique Ltd | Wholesale & retail | 2022 |
| Ideal Staging Ltd | Professional & scientific | 2025 |
| IEB Estates & Acquisitions LLP | | 2020 |
| Ienc Limited | Administrative & support | 2016 |
| IF Global Ltd | Real estate | 2024 |
| Ignitehire Ltd | Administrative & support | 2026 |
| Image Innovations Limited | Administrative & support | 2017 |
| Imerge Consultancy Limited | Professional & scientific | 1987 |
| Imperial (N22) Management Ltd | Real estate | 2017 |
| Imperial Heating and Plumbing Services Limited | Construction | 2023 |
| Improbable | Arts & recreation | 2013 |
| IN Case of Emergency Medical Ltd | Wholesale & retail | 2011 |
| In-Build Limited | Manufacturing | 2022 |
| Inception Media Ltd | Information & communication | 2016 |
| Innate Architecture and Design Limited | Professional & scientific | 2019 |
| Innovare Solutions Ltd | Professional & scientific | 2010 |
| Innovative Displays Limited | Information & communication | 1998 |
| Insanity Productions Ltd | Other services | 2018 |
| Inspira Advisory Group Ltd | Professional & scientific | 2009 |
| Intaarya Ltd | Professional & scientific | 2022 |
| Intopool Direct Limited | Manufacturing | 2003 |
| Intuitive Automation Ltd | Construction | 2021 |
| Inventor Design Services Limited | Administrative & support | 2008 |
| J T Coombes Limited | Information & communication | 2013 |
| J&E Higham & Company Ltd | Information & communication | 2014 |
| J&N Business Solutions Limited | Manufacturing | 2003 |
| J.P.S. Maintenance Services Limited | Construction | 1991 |
| Jaques Holdings Limited | Professional & scientific | 2007 |
| JAS West Ltd | Administrative & support | 1988 |
| JBP Management Services Limited | Households | 2011 |
| JBP Properties Limited | Households | 2011 |
| JC Doors Ltd | Construction | 2024 |
| JE Farmer Ltd | Health & social care | 2024 |
| Jenton Consultants Limited | Professional & scientific | 2010 |
| Jess Harvey Limited | Other services | 2023 |
| JHH Consulting Ltd | Professional & scientific | 2022 |
| JHW Clearances, Removals & Logistics Ltd | Water & waste | 2021 |
| JIM Cooper Farriers Limited | Administrative & support | 2008 |
| Jj-Brickwork & Building Ltd | Construction | 2026 |
| JK Irrigation Ltd | Manufacturing | 2023 |
| JK Principal Ltd | Extraterritorial | 2022 |
| Joe's Generating Ltd | Energy | 2018 |
| John a. Sparks & Co. Limited | Real estate | 1956 |
| John Jaques and SON Limited | Manufacturing | 1945 |
| Johnson Andrews Limited | Real estate | 2024 |
| Johnston MB Limited | Construction | 2025 |
| Joli Jardin Ltd | Administrative & support | 2009 |
| JP Heating and Plumbing Solutions Limited | Construction | 2023 |
| JS Ecogas Limited | Construction | 2011 |
| JSW Heating Solutions Ltd | Construction | 2021 |
| Jubilee Court (West Wickham) Limited | Households | 2003 |
| JW & Partners Limited | Real estate | 2022 |
| JW International Consulting Ltd | Real estate | 2020 |
| JW Recruitment Consultants Ltd | Administrative & support | 2024 |
| K P Pharma Limited | Manufacturing | 2005 |
| Kaaka Limited | Wholesale & retail | 2011 |