| Lemon Tree Workshop Limited | Professional & scientific | 2019 |
| Lerdrit Fight Night Ltd | Arts & recreation | 2026 |
| Letts Reconcile Ltd | Professional & scientific | 2023 |
| LHS Cars Faversham Ltd | Wholesale & retail | 2019 |
| Life Clinics Limited | Health & social care | 2023 |
| Lifeline Learning Ltd | Education | 2025 |
| Lighthouse Fostering Limited | Health & social care | 2014 |
| Lighthouse Holdings (South East) Ltd | Financial services | 2025 |
| Lighthouse Residential (Kent) Ltd | Health & social care | 2025 |
| Lime END Farm Limited | Agriculture & fishing | 2014 |
| Link & Hinkly Motors Limited | Manufacturing | 2002 |
| Linked INK Ltd | Arts & recreation | 2023 |
| Lion Yard Faversham Right to Manage Company Limited | Real estate | 2011 |
| Lisa Thomson Design Ltd | Arts & recreation | 2021 |
| Lite Consulting Ltd | Information & communication | 2015 |
| Little Barley MOW Ltd | Wholesale & retail | 2026 |
| Little Mays Ltd | Financial services | 2023 |
| Little Moonbeams Day Nursery Ltd | Health & social care | 2024 |
| Little Shatterling Farm Ltd | Hospitality | 2026 |
| Littlebrook Green Energy Centre Ltd | Energy | 2022 |
| LIV2018 Ltd | Transport & logistics | 2025 |
| LMN Holdings Limited | Financial services | 2025 |
| LOCKES41 Ltd | Construction | 2019 |
| Lodge Road Limited | Households | 2020 |
| Lodgicka UK Ltd | Professional & scientific | 2025 |
| Lofty Ladders Ltd | Construction | 2020 |
| London International University Ltd | Education | 2002 |
| London Performing Academy of Music Limited | Education | 2018 |
| London Piano Masters Limited | Arts & recreation | 2008 |
| Longfield Property Services Ltd | Real estate | 2024 |
| Longland Consulting Ltd | Information & communication | 2017 |
| Lorenden Gate Management Company Limited | Households | 2002 |
| Lotty's Flowers Ltd | Wholesale & retail | 2024 |
| Lovely English Limited | Information & communication | 2023 |
| Lowther's Lofts Limited | Construction | 2008 |
| Lros Consultancy Ltd | Professional & scientific | 2020 |
| LSM Direct Ltd | Wholesale & retail | 2021 |
| LTM (South East) Ltd | Construction | 2015 |
| Lucketts Accommodation Ltd | Health & social care | 2018 |
| Lucketts Care Agency Ltd | Health & social care | 2015 |
| Lucketts Farm (Blean) Ltd | Agriculture & fishing | 2018 |
| Lucketts Farm Limited | Other services | 2008 |
| Luddenham School | Education | 2012 |
| Lunach Limited | Other services | 2022 |
| Lunam Limited | Transport & logistics | 2017 |
| Luscott Barton Solar Limited | Energy | 2012 |
| Lynton Merson Ltd | Administrative & support | 2016 |
| Lyricism Records Limited | Information & communication | 2025 |
| M & D Plastering Limited | Construction | 2003 |
| M & S Barna Limited | Health & social care | 2024 |
| M a Brice & SON Moling Services Limited | Construction | 2003 |
| M Dane Plumbing Limited | Construction | 2026 |
| M Palmer Consultancy Ltd | Information & communication | 2025 |
| M&D Logistics INT Ltd | Transport & logistics | 2022 |
| M&M Burger Grill Ltd | Hospitality | 2024 |
| M-Tech Site Engineering & Surveying Ltd | Construction | 2024 |
| Mablethorpe Green Energy Centre Limited | Energy | 2021 |
| Macknade Fine Foods Ltd | Wholesale & retail | 2013 |
| Macknade Limited | Real estate | 2018 |
| MAD Cat Brewery Limited | Manufacturing | 2012 |
| Made by Tidy Limited | Professional & scientific | 2014 |
| Madeleine Hair Ltd | Other services | 2026 |
| Magnus Carpentry & Joinery Ltd | Construction | 2013 |
| Maintenancemasters Ltd | Construction | 2026 |
| Mallaby Rise Management Company Limited | Households | 1998 |
| Manhattan Court Management Limited | Real estate | 1996 |
| Manor Farm Court at Street Ltd | Professional & scientific | 2019 |
| Maria Catering Ltd | Hospitality | 2020 |
| Marina Trans Ltd | Transport & logistics | 2021 |
| Mariners Oare Limited | Hospitality | 2024 |
| Market Harborough Green Energy Centre Ltd | Energy | 2022 |
| Marketing Interim Ltd | Professional & scientific | 2025 |
| Marketing Rescue Ltd | Administrative & support | 2009 |
| Marlowe Carpentry Limited | Construction | 2014 |
| Marshborough Solar Limited | Energy | 2014 |
| Martin Beckenham Associates Limited | Professional & scientific | 2011 |
| Marwood London Limited | Wholesale & retail | 2010 |
| Maslaw Limited | Hospitality | 2026 |
| Mason's Events Ltd | Hospitality | 2021 |
| Master Chord Records Limited | Arts & recreation | 2008 |
| Mathha Consulting Limited | Information & communication | 2025 |
| Matt Gwyn Consulting Ltd | Professional & scientific | 2025 |
| Matthewjameskinch Limited | Transport & logistics | 2023 |
| Matthews Environmental Ltd | Professional & scientific | 2013 |
| Mattiussi Environmental Ltd | Administrative & support | 2012 |
| Maypole Construction Ltd | Construction | 2014 |
| Maypole Project Consultancy Limited | Construction | 2012 |
| Maytree Nursery Limited | Wholesale & retail | 2021 |
| MBE (Fabrications) Limited | Manufacturing | 1992 |
| Mccreath Capital Ltd | Financial services | 2020 |
| Mcdonald Waterfall Education Limited | Education | 2015 |
| MD Language Courses Ltd | Education | 2023 |
| MD Peri-Operative Anaesthetic Services Ltd | Health & social care | 2015 |
| Mead Wealth Management Limited | Financial services | 2018 |
| MEAN18 Limited | Other services | 2009 |
| Medway Houses Limited | Real estate | 2021 |
| Medway Maritime Trust | Education | 2001 |
| MEK27 Ltd | Hospitality | 2025 |
| Melia Line Ltd | Transport & logistics | 2014 |
| Melross Construction Ltd | Construction | 2017 |