| L.D. Barbros Limited | Wholesale & retail | 1978 |
| LA Cocina Ltd | Hospitality | 2020 |
| LA Costiera & Cocktails Limited | Hospitality | 2025 |
| LA VIE EN Velo Limited | Administrative & support | 2015 |
| Laces-Support Ltd | Other services | 2015 |
| Ladybirds Garden Services Ltd | Administrative & support | 2022 |
| Lafayette's Margate Ltd | Hospitality | 2024 |
| Lahlah Studio Ltd | Professional & scientific | 2025 |
| Lakesview INT. Business Park Management Company Limited | Real estate | 2002 |
| Lamba Lifestyle Limited | Hospitality | 2019 |
| Lamba Lifestyle Three Limited | Hospitality | 2024 |
| Lamba Lifestyle Two Limited | Hospitality | 2021 |
| Land & Life Limited | Administrative & support | 2003 |
| Lara Waldman Ltd | Administrative & support | 2020 |
| Laroche Holdings Ltd | Financial services | 2025 |
| Last One OUT Ltd | Information & communication | 2016 |
| Latte Monday Ltd | Wholesale & retail | 2024 |
| Laurel Dental Practice Limited | Health & social care | 2014 |
| Law 4 Today Limited | Administrative & support | 1999 |
| Lawson Management Services Ltd. | Construction | 1999 |
| Lbwcounselling Ltd | Health & social care | 2023 |
| LE Petit Café Whitstable Ltd | Hospitality | 2024 |
| Leaders of Change Ltd | Education | 2020 |
| Leading Dogs (Kent) Limited | Other services | 2018 |
| Leahurst Court Residents Association Limited | Households | 1996 |
| Leander Limited | Wholesale & retail | 2026 |
| Learay Ltd | Professional & scientific | 2007 |
| LEE Wills and Estate Planning Ltd | Public administration | 2024 |
| Leeloo Hire Ltd | Administrative & support | 2026 |
| Leisureplusdirect Ltd | Wholesale & retail | 2015 |
| Lemox Consultancy Limited | Professional & scientific | 2020 |
| Lenham Court (RBC) RTM Company Limited | Households | 2024 |
| LEO Property Maintenance Ltd | Administrative & support | 2014 |
| LEP Power Holdings Limited | Financial services | 2023 |
| Lernaean Hydra Limited | Information & communication | 2010 |
| LET Solutions Limited | Real estate | 2001 |
| Lets Go (Kent) Ltd | Real estate | 2022 |
| Level Solutions Ltd | Construction | 2016 |
| Leyton Bundock Ltd | Construction | 2017 |
| LGL Wealth Ltd | Financial services | 2015 |
| LGM Electrical Solutions Limited | Construction | 2017 |
| Liberty Aviation Limited | Transport & logistics | 2017 |
| Life (Bletchley) Management Company Limited | Households | 2011 |
| Life Coach Associates Ltd. | Professional & scientific | 2011 |
| Life Crush Ltd | Administrative & support | 2021 |
| Life MAP Limited | Financial services | 2018 |
| Lifeforms Limited | Information & communication | 2002 |
| Lifestyle Care Homes Ltd. | Real estate | 1999 |
| Lifestyle Consulting Limited | Professional & scientific | 2002 |
| Lift Advice Services Ltd | Professional & scientific | 2023 |
| Lime Lettings (Kent) Ltd | Real estate | 2014 |
| Limes Lettings Ltd | Hospitality | 2021 |
| Limitless YOU Ltd | Health & social care | 2013 |
| Lina Holdings Ltd | Real estate | 2025 |
| Linden Meadows Residents Management Company Limited | Households | 2019 |
| Linden Road Management Co Limited | Other services | 2020 |
| Lindley Players Limited(The) | Arts & recreation | 1964 |
| Line Solutions Ltd | Professional & scientific | 2014 |
| Linea (Dunstall Street) Management Company Limited | Households | 2007 |
| Lion Computing Services Limited | Information & communication | 1988 |
| Lionheart Properties Ltd | Construction | 2016 |
| Litic Limited | Professional & scientific | 2019 |
| Little Cockle Limited | Hospitality | 2025 |
| Little Winkle Ltd | Hospitality | 2025 |
| LIU & Co Consulting Limited | Professional & scientific | 2012 |
| Livewellvitamins Ltd | Wholesale & retail | 2019 |
| Liwm Limited | Other services | 2019 |
| LL Holdings Limited | Financial services | 2021 |
| Lmpp Design Limited | Professional & scientific | 2013 |
| Lmpp Studio Ltd | Professional & scientific | 2024 |
| Loaf Lighting Limited | Information & communication | 2004 |
| Lobster Van Hire Limited | Administrative & support | 2012 |
| Lola Rail Limited | Construction | 2018 |
| Lost Sheep Coffee Ltd | Manufacturing | 2019 |
| Lots More FUN Tomorrow Ltd | Financial services | 2024 |
| Lotus Cortina Register Limited | Arts & recreation | 1987 |
| Louise Turgoose Associates Limited | Professional & scientific | 2018 |
| Love Property Management Ltd | Real estate | 2023 |
| Lovemill Financial Ltd | Public administration | 2022 |
| Lovemill Group Limited | Real estate | 2018 |
| Loves Farm Management Company Limited | Households | 2007 |
| Lovestone Estates Ltd | Construction | 2018 |
| Lower Island Walk Management Company Ltd | Households | 2025 |
| LRS Development Kent Ltd. | Construction | 2014 |
| LS Scientific Limited | Professional & scientific | 2007 |
| LSC Roastery Limited | Manufacturing | 2017 |
| LT Counselling and Psychotherapy Ltd | Health & social care | 2025 |
| Lucas + Carroll Ltd | Professional & scientific | 2023 |
| Lumen Path Advisory Ltd | Administrative & support | 2026 |
| Lusitania Sassonia Ltd | Professional & scientific | 2025 |
| Luxe Home Stays Ltd | Real estate | 2025 |
| Luxora Renovations Ltd | Construction | 2026 |
| LVG Business Consultancy Limited | Information & communication | 2018 |
| M B Family Law Ltd | Professional & scientific | 2021 |
| M M Motorsport Limited | Administrative & support | 2008 |
| M Peppiatt Associates Ltd | Other services | 2016 |
| M S M Autosport Ltd | Wholesale & retail | 2006 |
| M&C Financial Services Ltd | Financial services | 2011 |
| M&F House Ltd | Energy | 2013 |
| M&J Early Years Ltd | Education | 2018 |