| Lapis Murus Ltd | Administrative & support | 2026 |
| Larcombe Woodland Ltd | Agriculture & fishing | 2021 |
| Ldcomics CIC | Education | 2021 |
| Leadability Ltd | Professional & scientific | 2018 |
| Leaf Creative Limited | Professional & scientific | 2016 |
| Leasehold Assist Limited | Professional & scientific | 2011 |
| Leatside Trading Ltd | Wholesale & retail | 2021 |
| LEE Properties Limited | Agriculture & fishing | 2010 |
| LEE Weeks Ltd | Professional & scientific | 2008 |
| Leechwell Residents Limited | Real estate | 2025 |
| Leigh Street Limited | Real estate | 2018 |
| Leigh Vale Limited | Professional & scientific | 2005 |
| Lentell Motors Limited | Professional & scientific | 2024 |
| Lestari LLP | | 2019 |
| LET Them EAT Cake HUT Ltd | Wholesale & retail | 2026 |
| Lexa Somar & Angels Limited | Health & social care | 2025 |
| Libra Investments Limited | Professional & scientific | 2013 |
| LID Design Limited | Professional & scientific | 2018 |
| Lifeworks Charity Limited | Education | 1996 |
| Lilburn & Elliott Construction Limited | Construction | 2016 |
| Limeblue Consultancy Ltd | Real estate | 2004 |
| Lincoln Decor Ltd | Construction | 2022 |
| Linton Hydro Ltd | Energy | 2016 |
| Little Asia Totnes Ltd | Hospitality | 2019 |
| Little Free Library Project UK Community Interest Company | Education | 2026 |
| Little Tree Films Limited | Administrative & support | 2010 |
| Live-In Care South West Ltd | Health & social care | 2024 |
| Lived Ltd. | Education | 2021 |
| Lively Minds | Other services | 2019 |
| Living Villages Design Ltd | Professional & scientific | 2006 |
| Local Economy Solutions Limited | Professional & scientific | 2002 |
| Location Maps Limited | Professional & scientific | 1989 |
| Logisca Ltd | Wholesale & retail | 2014 |
| Lonesome Sparrow Pictures Ltd | Information & communication | 2023 |
| Longview Building Services Ltd | Construction | 2023 |
| Lord Seymour's D Nominee 1 Limited | Extraterritorial | 2025 |
| Lord Seymour's D Nominee 2 Limited | Extraterritorial | 2025 |
| LOS Sombreros Ltd | Hospitality | 2026 |
| Love Frankie Holdings Limited | Financial services | 2019 |
| Love Frankie Ltd | Wholesale & retail | 2012 |
| Love Your Town Ltd | Wholesale & retail | 2024 |
| Loventor Limited | Extraterritorial | 1995 |
| Lower Combe Park Ltd | Real estate | 2015 |
| Lower Poole Barns Limited | Households | 2021 |
| LRN2DIY Ltd | Education | 2022 |
| Luke Tutors Limited | Education | 2025 |
| Luna's Bakehouse Limited | Hospitality | 2024 |
| Luscombe Maye (1873) Ltd | Real estate | 2020 |
| LVT Property Management Ltd | Real estate | 2024 |
| L`Ocean Limited | Wholesale & retail | 2008 |
| M and J Enterprises South West Limited | Professional & scientific | 2021 |
| M G W Partnership Limited | Professional & scientific | 2017 |
| M(Uk)Sw Limited | Other services | 2024 |
| MAC Electrical Contracting Ltd | Construction | 2025 |
| Macrobiotic School | Education | 2011 |
| Madgo.Com Limited | Real estate | 2003 |
| Maison Aesthetique Ltd | Health & social care | 2014 |
| Maison Premiere Limited | Hospitality | 2023 |
| Maitland Bell Tree Services Limited | Agriculture & fishing | 2013 |
| Make Shift Theatre Ltd | Education | 2025 |
| MAL Consulting South West Ltd | Professional & scientific | 2008 |
| MAN UP a Tree LLP | | 2024 |
| Management of 54 Queens Road Limited | Households | 1990 |
| Mandarin Blue Limited | Financial services | 2020 |
| Manor Mill (UK) Ltd | Public administration | 2012 |
| MAP Accountants & Business Advisors Limited | Professional & scientific | 2009 |
| Maple Construction (SW) Ltd | Construction | 2025 |
| Maria Holdings Limited | Construction | 1965 |
| Maria Skobtsova House Limited | Health & social care | 2004 |
| Marians Maples Management Company Limited | Households | 2020 |
| Marine Boat Sales Limited | Wholesale & retail | 2007 |
| Mark Glanville Limited | Professional & scientific | 2021 |
| Marketingcells Limited | Administrative & support | 2008 |
| Marketplace Ministries Limited | Other services | 2013 |
| Marshall Global Consulting Limited | Professional & scientific | 2005 |
| Marshalloak Ltd | Construction | 2025 |
| Marshalls Markets Limited | Administrative & support | 2011 |
| Martin Pears Engineering Limited | Wholesale & retail | 2009 |
| Matrix Property Corp Ltd | Real estate | 2024 |
| MC Build (Totnes) Ltd | Construction | 2013 |
| Mccombe Decking Limited | Manufacturing | 2006 |
| Mclaren Mohan Limited | Extraterritorial | 2015 |
| Meadow Group Holding Co. Ltd | Financial services | 2022 |
| Meadow Tors Limited | Real estate | 2025 |
| Meadowside (Totnes) Management Company Limited | Administrative & support | 2016 |
| Meadowside Consultancy Limited | Professional & scientific | 2016 |
| Medicalis-Uk Ltd. | Health & social care | 2016 |
| Meeder Books Ltd | Wholesale & retail | 2024 |
| Meltone Builders Limited | Professional & scientific | 1975 |
| Meniscus Devon Ltd | Hospitality | 2019 |
| Merlin Marketing & Mentoring Limited | Professional & scientific | 2006 |
| Metadata Research Limited | Manufacturing | 2011 |
| Mewstone Properties Limited | Real estate | 2008 |
| Michael Hilliar Limited | Wholesale & retail | 2022 |
| Micro Motions Limited | Information & communication | 2025 |
| Midnite Jiu-Jitsu Ltd | Arts & recreation | 2023 |
| Mifsuds Photographic Limited | Wholesale & retail | 2009 |
| Mike Taylor Building Services Limited | Construction | 2021 |
| Miknaf Ha'Aretz CIC | Agriculture & fishing | 2022 |
| Millennium Marine Contractors Limited | Professional & scientific | 2002 |