| Kimwetu Ltd | Professional & scientific | 2010 |
| Kinder Haven Limited | Education | 2001 |
| Kinderbear Nursery Ltd | Other services | 2003 |
| Kindriid Ltd | Information & communication | 2023 |
| Kings Park Day Nursery Limited | Education | 2006 |
| KKY Ltd | Real estate | 2019 |
| KM Interim Management Limited | Administrative & support | 2014 |
| KMI Site Services Ltd | Administrative & support | 2023 |
| Kolibrie Ltd | Professional & scientific | 2011 |
| Krave Design Ltd | Wholesale & retail | 2012 |
| KS Legal Recruitment Ltd | Administrative & support | 2017 |
| Kwkar Holdings Limited | Financial services | 2019 |
| Kwkar Ltd | Other services | 2018 |
| L & W Invest Ltd | Real estate | 2021 |
| L Hill (Properties) Limited | Wholesale & retail | 1938 |
| L M Boat Sales Limited | Manufacturing | 2010 |
| L Mcbride Ltd | Manufacturing | 2016 |
| Labform Limited | Construction | 1994 |
| Laing Legal Ltd | Professional & scientific | 2012 |
| LAJ Higham Limited | Professional & scientific | 2026 |
| Lake View (Sandbach) Residents Management Company Ltd | Households | 2022 |
| Lands Lets Ltd | Real estate | 2006 |
| Lang Assets Ltd | Financial services | 2020 |
| Lara Patisserie Ltd | Manufacturing | 2026 |
| Laris & RAY Ltd | Real estate | 2020 |
| Latchford Village Windows Ltd | Construction | 2005 |
| Lathom Horticulture Limited | Agriculture & fishing | 2020 |
| Laura Hartney Limited | Arts & recreation | 2018 |
| Laura Lyon Travel Ltd | Administrative & support | 2025 |
| Laurel House Interiors Limited | Manufacturing | 2009 |
| Lawley Village Day Nursery Limited | Education | 2009 |
| LB99 Limited | Construction | 2022 |
| LBI Technology Ltd | Information & communication | 2012 |
| LE Beaute Clinic Ltd | Other services | 2019 |
| Leaway(Manchester)Limited | Construction | 1961 |
| LEO Magari Ltd | Manufacturing | 2024 |
| Leonard Solutions Liaison Limited | Professional & scientific | 2012 |
| Lewis J Oldknow Limited | Information & communication | 2023 |
| Lewis's Liverpool Energy LLP | | 2013 |
| LG Engineering Solutions Ltd | Administrative & support | 2021 |
| LG Interior Joinery Ltd | Construction | 2025 |
| LGO Property Ltd | Real estate | 2024 |
| Libertas Therapy Limited | Health & social care | 2012 |
| Libration Design Limited | Professional & scientific | 2014 |
| Life Unlymmited Ltd | Education | 2017 |
| Limefield Consulting Services Limited | Professional & scientific | 2022 |
| Linden House Day Nursery Limited | Education | 2012 |
| Link Safety Limited | Professional & scientific | 2009 |
| Liquid Sport Psychology Ltd | Education | 2023 |
| Lithion Loop Ltd | Other services | 2024 |
| Little Acorns (West Hagbourne) Limited | Education | 2012 |
| Little Acorns Children's Day Nursery Limited | Health & social care | 2003 |
| Little Acorns Day Nursery (Huddersfield) Limited | Education | 1994 |
| Little Bears (WSM) Ltd | Health & social care | 2018 |
| Little Clowns Nursery Limited | Education | 2003 |
| Little Learners Sunderland Limited | Education | 2016 |
| Little Lions Day Nursery Ltd | Health & social care | 2014 |
| Little Tiger Togs Ltd | Wholesale & retail | 2021 |
| Liverpool Nurseries (House) Limited | Health & social care | 2011 |
| Living Waters UK Limited | Education | 2008 |
| Lloyd Investment Management Limited | Real estate | 2012 |
| Lobster Ventures Limited | Administrative & support | 2007 |
| Locantis Property Ltd | Real estate | 2022 |
| Logistics Changes Ltd | Professional & scientific | 2020 |
| Louise Bakery Limited | Manufacturing | 2025 |
| LRF Property Group Ltd | Real estate | 2025 |
| LRM Software Ltd | Information & communication | 2022 |
| LT 2020 T/A Lymm Truckwash Ltd | Transport & logistics | 2019 |
| Luceba Ltd | Financial services | 2022 |
| Lumora Solutions Ltd | Construction | 2025 |
| Lymm Auto Services Ltd | Wholesale & retail | 2022 |
| Lymm Beechwood Limited | Arts & recreation | 2016 |
| Lymm Boutique Rooms Ltd | Households | 2018 |
| Lymm Boxing Limited | Arts & recreation | 2014 |
| Lymm Building Contractors Ltd | Construction | 2022 |
| Lymm Community Radio CIC | Information & communication | 2020 |
| Lymm Cruising Club (Properties) Limited | Arts & recreation | 1958 |
| Lymm Exterior Cleaning Limited | Administrative & support | 2023 |
| Lymm Fitted Furniture Ltd | Manufacturing | 2022 |
| Lymm Garden Limited | Arts & recreation | 2016 |
| Lymm GAS Company Ltd | Construction | 2025 |
| Lymm Golf Club Ltd. | Hospitality | 2017 |
| Lymm Hall Management Limited | Households | 2021 |
| Lymm High School | Education | 2012 |
| Lymm High School Leisure Centre | Arts & recreation | 2012 |
| Lymm Homes Limited | Real estate | 2025 |
| Lymm Limited | Hospitality | 2018 |
| Lymm Locum Ltd | Public administration | 2019 |
| Lymm Marina Storage Ltd | Administrative & support | 2022 |
| Lymm RFC Limited | Arts & recreation | 2016 |
| Lymm Shutters and Blinds Ltd | Other services | 2002 |
| Lymm Skatepark | Health & social care | 2022 |
| Lymm Terrace UK Ltd | Wholesale & retail | 2024 |
| Lymm Truckwash Holdings Limited | Administrative & support | 2018 |
| Lymm Windows & Conservatories Limited | Construction | 2013 |
| Lymm Youth and Community Association Ltd | Other services | 2008 |
| LYMM2024 Limited | Information & communication | 2025 |
| Lyne Investment Limited | Professional & scientific | 2020 |
| M Aguirre Ltd | Information & communication | 2025 |
| M Atkinson Consultants Limited | Professional & scientific | 2010 |