| Kent Catering Equipment Limited | Manufacturing | 1999 |
| Kent Catering Service Limited | Manufacturing | 1999 |
| Kent Cleaning Services Ltd | Administrative & support | 2018 |
| Kent Community Rehabilitation Campaign CIC | Health & social care | 2025 |
| Kent Competitions Limited | Wholesale & retail | 2025 |
| Kent Fire Door Inspection Limited | Professional & scientific | 2022 |
| Kent Greenzone Limited | Hospitality | 2018 |
| Kent Groundwork’S and Building Limited | Construction | 2026 |
| Kent Liquid Screed Limited | Construction | 2018 |
| Kent Morleys Ltd | Hospitality | 2024 |
| Kent Power Solutions Ltd | Construction | 2022 |
| Kent Property Cleaning Ltd | Administrative & support | 2021 |
| Kent RAG Consultancy Limited | Water & waste | 2022 |
| Kent Vehicle Contracts Limited | Administrative & support | 2017 |
| Kewo Ltd | Health & social care | 2013 |
| Kidz City Ltd. | Health & social care | 2018 |
| Kingsferry Campers Limited | Manufacturing | 2024 |
| Kingsferry Clay Shooting Club Ltd | Arts & recreation | 2022 |
| KJP Jewellers Ltd | Wholesale & retail | 2026 |
| KK 16 Limited | Hospitality | 2021 |
| Kleers Limited | Transport & logistics | 1999 |
| Kleers Products Ltd | Wholesale & retail | 2009 |
| Knight-Tec Limited | Information & communication | 2026 |
| Knuskin Ltd | Health & social care | 2023 |
| Kode Performance Limited | Wholesale & retail | 2009 |
| KOV Holdings Ltd | Financial services | 2025 |
| Krio Descendants Union London | Hospitality | 2019 |
| KSK Plumbing and Heathing Ltd | Construction | 2022 |
| Kutenda Limited | Health & social care | 2013 |
| KW Consulting Services Ltd | Professional & scientific | 2020 |
| Kyze Cards Ltd | Wholesale & retail | 2026 |
| LA Haulage Ltd | Transport & logistics | 2023 |
| Lacramioara Transport Ltd | Transport & logistics | 2023 |
| Laimis Transport Services Limited | Transport & logistics | 2026 |
| Lanza POB Limited | Wholesale & retail | 2024 |
| Lapwing Legal Services Limited | Administrative & support | 2010 |
| Larashell Developments Limited | Construction | 2010 |
| Launch IT Trust Kent | Administrative & support | 2023 |
| Laureate Global Limited | Administrative & support | 2010 |
| Laureate Legal Services Limited | Administrative & support | 2009 |
| Laurent Findji Limited | Professional & scientific | 2018 |
| Lavida Healthcare Solution Limited | Administrative & support | 2015 |
| Laxshmiap Limited | Real estate | 2021 |
| Lazy Days Commonhold Association Ltd | Real estate | 2005 |
| LC Maintenance Ltd | Manufacturing | 2025 |
| LCL Car Hire Ltd | Transport & logistics | 2019 |
| LEA Commercials Ltd | Wholesale & retail | 2025 |
| Leah Housing Ltd | Real estate | 2023 |
| Learn 2 Pass HGV Training Limited | Education | 2021 |
| Lebra Logistics Limited | Transport & logistics | 2017 |
| LEE Cast HGV Limited | Transport & logistics | 2024 |
| LEE Park Estates Ltd | Hospitality | 2016 |
| LEE Real Estate Limited | Real estate | 2023 |
| Leeberg Properties Ltd | Real estate | 2025 |
| Legacy Lifts Limited | Manufacturing | 2016 |
| Leisure Park Electrical Ltd | Construction | 2024 |
| LEM (Kent) Limited | Wholesale & retail | 2016 |
| Leniorr Ltd | Health & social care | 2020 |
| LES Reed Clearance Services Ltd | Water & waste | 2012 |
| Lesley Leon Accountancy Ltd | Manufacturing | 2018 |
| Lets GET Crafting Ltd | Wholesale & retail | 2021 |
| Lewis Sales Ltd | Wholesale & retail | 2024 |
| Leysdown Chalet Services Ltd | Hospitality | 2022 |
| Leysdown Fish Bar Ltd | Hospitality | 2023 |
| LF Unit Cars Limited | Transport & logistics | 2015 |
| LGA Operational Management Services Ltd | Construction | 2022 |
| Light Bearers HAG2 Limited | Wholesale & retail | 2025 |
| Light of Christ Ministries | Other services | 2022 |
| Lightfires Limited | Arts & recreation | 2015 |
| Limitless Artificial Grass & Landscapes Ltd | Administrative & support | 2025 |
| Line & Sphere Designs Limited | Professional & scientific | 2003 |
| Linsey Pattenden Ltd | Professional & scientific | 2021 |
| Linton Projects Ltd | Wholesale & retail | 2006 |
| Liron Homes Ltd | Real estate | 2025 |
| Litter Angels | Professional & scientific | 2011 |
| Little Heirs Childcare Solutions Ltd | Health & social care | 2023 |
| Little Oyster Limited | Health & social care | 2010 |
| Liviabell Ltd | Transport & logistics | 2023 |
| LJ Engineering Solutions Ltd | Manufacturing | 2024 |
| LJ Scaffolding Ltd | Construction | 2017 |
| LJF Property Investment Company Limited | Real estate | 2015 |
| LJW Logistics Ltd | Transport & logistics | 2026 |
| LK Flooring Kent Limited | Construction | 2021 |
| LKS Fabrication Ltd | Manufacturing | 2019 |
| LKS Properties and Development Ltd | Real estate | 2024 |
| LLW Installations Ltd | Information & communication | 2020 |
| LMS Heating Solutions Limited | Construction | 2022 |
| Localgiving Ltd | Information & communication | 2009 |
| Locker Room Sauna Limited | Other services | 2019 |
| Lodwick Consulting Limited | Administrative & support | 2023 |
| Londis Broadway Ltd | Wholesale & retail | 2023 |
| London & Kent Cable Jointing Limited | Energy | 2013 |
| London Developments (Residential) Limited | Real estate | 1992 |
| Lono Design & Build Ltd | Construction | 2025 |
| Lost Flow Limited | Professional & scientific | 2004 |
| LOU@21 Ltd | Hospitality | 2025 |
| Louie HGV Ltd | Transport & logistics | 2025 |
| Love Heart Ltd | Manufacturing | 2025 |
| Lowe Estate Services Ltd | Real estate | 2019 |
| Loxton (UK) Limited | Construction | 2008 |