| Lavender Catering Team Ltd | Hospitality | 2022 |
| Lavender Court Limited | Administrative & support | 2007 |
| Lavender Event Services Ltd | Hospitality | 2009 |
| Lavender Fields Residents Management Company Limited | Households | 2001 |
| Lazer Lions Limited | Arts & recreation | 2015 |
| LB Painting and Decorating Ltd | Construction | 2020 |
| LC Suppliers Ltd | Wholesale & retail | 2023 |
| LCL Knightsbridge Limited | Professional & scientific | 1919 |
| LDS Cleaning & Household Services Surrey Ltd | Households | 2017 |
| Leadership Management (UK) Limited | Professional & scientific | 1997 |
| Learning Tree International Limited | Education | 1978 |
| Leatherhead BID Ltd | Administrative & support | 2025 |
| Leatherhead Cafe Limited | Hospitality | 2026 |
| Leatherhead Coachworks Limited | Wholesale & retail | 2011 |
| Leatherhead Convenience Store Limited | Wholesale & retail | 2024 |
| Leatherhead Football Club Limited | Arts & recreation | 1995 |
| Leatherhead Kitchen & Bathroom Limited | Construction | 2025 |
| Leatherhead Logistics Ltd | Transport & logistics | 2021 |
| Leatherhead Old School Court Residents Association Limited | Households | 1987 |
| Leatherhead Property Investments Ltd | Construction | 2023 |
| Leatherhead Residents' Association | Other services | 2016 |
| Leatherhead Revival Trust | Arts & recreation | 2004 |
| Leatherhead Road (Oxshott) Management Company Limited | Households | 2010 |
| Leatherhead Start | Hospitality | 2010 |
| Leatherhead Tennis Club Limited | Arts & recreation | 2017 |
| Leatherhead Valeting Centre Limited | Wholesale & retail | 2024 |
| Leatherhead Youth FC Trading Company Limited | Arts & recreation | 2013 |
| Leatherhead Youth Football Club | Arts & recreation | 2013 |
| Leatherhead Youth Project Limited | Health & social care | 2002 |
| Leavington House Limited | Construction | 2025 |
| Leith House Management Co. (Leatherhead) Limited | Households | 1985 |
| Lemberg Ltd | Construction | 2014 |
| Lemberg Property Ltd | Real estate | 2022 |
| Leolea Limited | Wholesale & retail | 2023 |
| Leon Construction Ltd | Construction | 2020 |
| Leonine Properties Limited | Real estate | 1987 |
| Lepton's Electrical Ltd | Construction | 2024 |
| Let's Make IT Happen Ltd | Administrative & support | 2023 |
| Letterman Signs Limited | Other services | 2017 |
| Leviathan Capital Limited | Financial services | 2012 |
| Lewins Road (Epsom) Managements Limited | Households | 1974 |
| Lewis Surveyors Limited | Construction | 2006 |
| Leyland Sports Management Ltd | Arts & recreation | 2024 |
| Liberate Training and Apprenticeships Academy Ltd | Professional & scientific | 1998 |
| Liberty Energy Limited | Energy | 2011 |
| Liberty GAS Group Limited | Construction | 2001 |
| Liberty Group Investments Limited | Professional & scientific | 1969 |
| Liberty R and M Limited | Manufacturing | 2018 |
| License Dashboard Limited | Extraterritorial | 2008 |
| Liddner Limited | Administrative & support | 2007 |
| Lifestyle Landscapes Limited | Administrative & support | 2019 |
| Light Blue Research Ltd | Information & communication | 2025 |
| Light Transforms Ltd | Professional & scientific | 2011 |
| Lighting and Lamps UK Limited | Wholesale & retail | 2006 |
| Lilymay Investments Ltd | Financial services | 2023 |
| Lime Smart Home Limited | Professional & scientific | 2025 |
| Lime Tree Close Management Limited | Households | 2009 |
| Liminal IP Ltd | Information & communication | 2025 |
| Limited Edition Homes Ltd | Construction | 2024 |
| Linear B Group Limited | Professional & scientific | 2023 |
| Linehouse London Ltd | Professional & scientific | 2020 |
| Linehouse Property Ltd | Real estate | 2023 |
| Linlee Management Limited | Information & communication | 2004 |
| Lion Pack Entertainment Ltd | Health & social care | 2018 |
| Lionsgate (Farnham) Ltd | Households | 2018 |
| Lismore Energy Limited | Professional & scientific | 2016 |
| Listen & Learn Associates Ltd | Professional & scientific | 2022 |
| Little Acre Management Limited | Households | 2006 |
| Little Bookham Preschool Ltd | Education | 2011 |
| Little Bookham Street Management Company Limited | Households | 1994 |
| Little Oaks Montessori Ltd | Education | 2016 |
| Little Orchard Place Management Company Limited | Households | 2008 |
| Live VIP Pass Ltd | Information & communication | 2021 |
| Liveinmoments Limited | Wholesale & retail | 2022 |
| Livendale Property Management Limited | Households | 2004 |
| Livewellworkwell Limited | Health & social care | 2006 |
| Livewire Digital Limited | Information & communication | 1991 |
| LJS Supply Ltd | Professional & scientific | 2023 |
| Lloyd-Foxe Limited | Financial services | 2022 |
| Lloydest Limited | Professional & scientific | 2021 |
| LME Investments Limited | Health & social care | 2010 |
| Lner Property Services Limited | Households | 2021 |
| LNM Plumbing & Heating Limited | Construction | 2016 |
| Loadstar Limited | Financial services | 2002 |
| Lockhart Consultancy Group Limited | Professional & scientific | 2015 |
| Lodgeport Associates Limited | Financial services | 2001 |
| Logicserve Limited | Information & communication | 2013 |
| Lohia Freeholds Ltd | Real estate | 2008 |
| Lohia Limited | Real estate | 2005 |
| London & Surrey Care Limited | Information & communication | 2013 |
| London Corrosion Services Limited | Other services | 2017 |
| London Design Construction Ltd | Construction | 2022 |
| London Design Construction Ltd Ltd | Construction | 2026 |
| London Education Guardians Ltd | Professional & scientific | 2025 |
| London Porcelain Tiles Ltd | Construction | 2026 |
| Long Acre Investment Consultancy Limited | Real estate | 2019 |
| Long ROW Dunwich Management Limited | Extraterritorial | 2025 |
| Longbridge Technology Park Management Company Limited | Households | 2020 |
| Longconn Plant Hire Ltd | Administrative & support | 2024 |
| Longdown Freehold Limited | Households | 2011 |