| Gross Margin Limited | Professional & scientific | 1992 |
| Grosvenor Landscapes Limited | Administrative & support | 2018 |
| Group Chauffeur Travel Ltd | Transport & logistics | 2024 |
| Grovenel Limited | Hospitality | 2006 |
| Guida Design Ltd | Professional & scientific | 2023 |
| Gulvin's Heating and Plumbing Services Ltd. | Construction | 2017 |
| Gymfloor AI Ltd | Information & communication | 2026 |
| Hallamcrest Limited | Real estate | 1996 |
| Hallbank Associates Ltd | Professional & scientific | 2018 |
| HAM Farm Enterprises Limited | Agriculture & fishing | 2022 |
| Hammond Plant Hire & Groundworks Ltd | Construction | 2021 |
| Hampton Close 1968 Limited | Extraterritorial | 2014 |
| Hampton Inn Limited | Hospitality | 2016 |
| Hampton Primary School Academy | Education | 2012 |
| Hamstall Limited | Real estate | 2018 |
| Hamyard Ltd | Professional & scientific | 2009 |
| Hands on Earth Ltd | Wholesale & retail | 2021 |
| Hands-On Virtual Solutions Ltd | Administrative & support | 2025 |
| Happy Buns Mini REX Rabbits and Boarding Kent Ltd | Hospitality | 2015 |
| Happy Frydays Limited | Hospitality | 2021 |
| Happy Fryer Ltd | Wholesale & retail | 2026 |
| Happy Hearts House Ltd | Health & social care | 2026 |
| Happy Here CIC | Hospitality | 2019 |
| Happy Nails TV Ltd | Other services | 2025 |
| Harbex Metal Processing Limited | Manufacturing | 2008 |
| Harrod-Green Maternity Services Ltd | Health & social care | 2021 |
| Harvey Owen Ltd | Manufacturing | 2020 |
| Harvey Richards & West Lettings Limited | Real estate | 2012 |
| Hasland Dance Limited | Arts & recreation | 2016 |
| Hatch Consultants Limited | Real estate | 2022 |
| Hawk Surveying Limited | Professional & scientific | 2014 |
| Haydon Rouse Consultancy Limited | Information & communication | 2012 |
| Hayes Rail Services Limited | Manufacturing | 2016 |
| HB Deals Ltd | Wholesale & retail | 2023 |
| HB Spice Ltd | Hospitality | 2018 |
| HD Design and Build Kent Ltd | Construction | 2025 |
| HD London Properties Limited | Real estate | 2026 |
| HD London Property Limited | Real estate | 2026 |
| Headcorn Developments Limited | Administrative & support | 2016 |
| Health Coach UK Limited | Hospitality | 2023 |
| Hearille Services Limited | Administrative & support | 2010 |
| Heart & Soul Herne Bay Ltd | Wholesale & retail | 2024 |
| Hellfire Private Members Club Ltd | Other services | 2024 |
| Hendrewen Community Partnership CIC | Health & social care | 2024 |
| Hendrewen Limited | Hospitality | 2001 |
| Hengist Group Ltd | Administrative & support | 2021 |
| Hengist Group Property Investments Ltd | Real estate | 2023 |
| Henrose Haulage Ltd | Transport & logistics | 2021 |
| Henson Estates Limited | Real estate | 2023 |
| Herbii House CIC | Health & social care | 2026 |
| Herbii Ltd | Wholesale & retail | 2025 |
| Here There Everywhere & Sons Limited | Professional & scientific | 2012 |
| Heritage Horticulture Ltd | Administrative & support | 2022 |
| Herman Technology Limited | Information & communication | 1999 |
| Herne Bay Cleaning Company Ltd | Other services | 2026 |
| Herne Bay Aggregates Limited | Agriculture & fishing | 2023 |
| Herne Bay Clinic Ltd | Health & social care | 2019 |
| Herne Bay Coastal Community Team C.I.C. | Administrative & support | 2020 |
| Herne Bay Domestics Limited | Wholesale & retail | 2002 |
| Herne Bay Estates Limited | Real estate | 1927 |
| Herne Bay FC 3G Limited | Arts & recreation | 2022 |
| Herne Bay Fish Bar Ltd | Hospitality | 2015 |
| Herne Bay Football Club Community Interest Company | Arts & recreation | 2012 |
| Herne Bay Jazz Festival CIC | Education | 2024 |
| Herne Bay Little Theatre | Arts & recreation | 1984 |
| Herne Bay Marketing and Digital Consultancy Group Limited | Professional & scientific | 2021 |
| Herne Bay Mini Market Ltd | Wholesale & retail | 2020 |
| Herne Bay Mobility Ltd | Wholesale & retail | 2008 |
| Herne Bay Pier Enterprises Limited | Administrative & support | 2021 |
| Herne Bay Pier Trust | Other services | 2008 |
| Herne Bay Sports Hub | Arts & recreation | 2017 |
| Herne Bay Sports Hub (Pavilion) Ltd | Hospitality | 2022 |
| Herne Bay Tandoori Takeaway Ltd | Hospitality | 2024 |
| Herne Bay Town Partners | Professional & scientific | 2006 |
| Herne Bay's Radio Cabin Limited | Information & communication | 2015 |
| Herne Building Services Ltd | Construction | 2018 |
| Herne Cars Ltd | Transport & logistics | 2002 |
| Herne Electronics Limited | Administrative & support | 2002 |
| Heron Management Ltd | Real estate | 2013 |
| Hertford House Management Ltd | Households | 1996 |
| Hexin Limited | Information & communication | 2017 |
| HEY TOR Properties Ltd | Real estate | 2009 |
| HG Security & IT Ltd | Information & communication | 2024 |
| Hidge Consultancy Services Limited | Professional & scientific | 2014 |
| High View Oast Care Ltd | Health & social care | 2018 |
| Highfield (S.E.) Limited | Construction | 2011 |
| Highfields Electrical Services Limited | Construction | 2015 |
| Hilary Adams Ltd | Professional & scientific | 2002 |
| Hilary's Dream Trust | Health & social care | 2007 |
| Hillington Homes Limited | Construction | 1996 |
| Hills Newton Ltd | Other services | 2023 |
| Hilltops Cattery Limited | Other services | 2018 |
| Hilton Antiques Emporium Ltd | Wholesale & retail | 2021 |
| Hilton’S Gold Exchange Ltd | Wholesale & retail | 2024 |
| Hines Roofing Limited | Construction | 2019 |
| Hitchell Associates LLP | | 2010 |
| Hive Epcs Limited | Real estate | 2008 |
| Hive Estate Agency Systems Limited | Information & communication | 2012 |
| HJ Will Writing Ltd | Professional & scientific | 2023 |
| HM Build LLP | | 2023 |