| Leigh Controls Ltd | Manufacturing | 2011 |
| Leigh Convenience Ltd | Wholesale & retail | 2023 |
| Leigh Convenience Store Ltd | Wholesale & retail | 2023 |
| Leigh Decor (Property) Limited | Real estate | 2018 |
| Leigh Discount Store Ltd | Wholesale & retail | 2024 |
| Leigh Dogs and Cats Home CIC | Other services | 2014 |
| Leigh Door Centre Limited | Construction | 2000 |
| Leigh Executive Travel Ltd | Transport & logistics | 2023 |
| Leigh External Finishes Limited | Construction | 2017 |
| Leigh Fencing Ltd | Manufacturing | 2019 |
| Leigh Food Limited | Wholesale & retail | 2024 |
| Leigh Hackspace CIC | Other services | 2015 |
| Leigh Hair Style Ltd | Other services | 2025 |
| Leigh Health and Fitness Ltd | Arts & recreation | 2021 |
| Leigh Healthcare Ltd | Wholesale & retail | 2025 |
| Leigh Kitchen Ltd | Hospitality | 2021 |
| Leigh Laundry Ltd | Other services | 2026 |
| Leigh Maintenance Services Limited | Construction | 2017 |
| Leigh Means Business Community Interest Company | Administrative & support | 2021 |
| Leigh Mot’S Ltd | Wholesale & retail | 2018 |
| Leigh News Ltd | Wholesale & retail | 2022 |
| Leigh Plumbing Merchants Limited | Construction | 1995 |
| Leigh Printers Limited | Manufacturing | 2015 |
| Leigh Recovery Ltd | Wholesale & retail | 2025 |
| Leigh Road OFF Licence Ltd | Wholesale & retail | 2019 |
| Leigh Rugby Union Football Club Limited | Arts & recreation | 2008 |
| Leigh Sheet Metal Co.Limited | Real estate | 1955 |
| Leigh Skip Hire Ltd | Extraterritorial | 2007 |
| Leigh South Community Centre | Arts & recreation | 2010 |
| Leigh ST Thomas Preschool Ltd | Health & social care | 2024 |
| Leigh Superstore Ltd | Wholesale & retail | 2025 |
| Leigh Tackle & Bait Limited | Wholesale & retail | 2003 |
| Leigh Tax Services Ltd | Professional & scientific | 2025 |
| Leigh Timber Merchants Ltd | Wholesale & retail | 2022 |
| Leigh Tree Consultancy Ltd | Professional & scientific | 2026 |
| Leigh Works Ltd | Other services | 2019 |
| Leigh Youth and Community Development Trust | Education | 2001 |
| Leigh, Lowton and Golborne Schools Partnership | Other services | 2011 |
| Leigh,Atherton,Tyldesley Heritage Group CIC | Construction | 2023 |
| Leigh’S Super Saver Ltd | Wholesale & retail | 2025 |
| Lemon Zest Creative Limited | Information & communication | 2004 |
| Lemuel Engineering Ltd | Mining & quarrying | 2023 |
| Lemuel Onyx Ltd | Wholesale & retail | 2024 |
| LEO Food Supplies Limited | Hospitality | 2025 |
| Leopard Food Ltd | Hospitality | 2025 |
| Leopards Pizza Ltd | Hospitality | 2023 |
| Lets GET Jiggy Events & Entertainment Ltd | Information & communication | 2024 |
| Letterbox Ltd | Information & communication | 2017 |
| Levland Limited | Construction | 2004 |
| Lewis William Limited | Real estate | 2011 |
| LFA Prime Ltd | Real estate | 2025 |
| Liam Whalley Access Ltd | Construction | 2026 |
| Liam Whalley Ltd | Construction | 2024 |
| LIBER8 Counselling Services Ltd | Other services | 2013 |
| Libertas Contract Solutions Ltd | Administrative & support | 2024 |
| Liberty Bible College U.K Ltd | Other services | 2023 |
| Lidiaproperties Ltd | Real estate | 2026 |
| Lift Alliance Ltd | Manufacturing | 2020 |
| Lifting & Safety Services Ltd | Construction | 2010 |
| Liftnshift House Removals Ltd | Transport & logistics | 2023 |
| Light Floor Ltd | Manufacturing | 2017 |
| Lilford Estates Limited | Real estate | 2021 |
| Lillian's Cocktails & Small Plates Ltd | Hospitality | 2024 |
| Lillian's Small Batch GIN Ltd | Manufacturing | 2025 |
| Limitless Skies Online Limited | Wholesale & retail | 2024 |
| Link Autosport Limited | Wholesale & retail | 2016 |
| Lisa Collins Communications Limited | Professional & scientific | 2015 |
| Lithobee Limited | Manufacturing | 2020 |
| Little Jams Play Centre Ltd | Arts & recreation | 2023 |
| Little Legends Entertainment Ltd | Arts & recreation | 2025 |
| Living Heritage Limited | Construction | 2012 |
| Livn Bespoke Ltd | Construction | 2024 |
| Lloyd Engineering Solutions Limited | Professional & scientific | 2023 |
| Lloyd Prestige Vehicles Ltd | Wholesale & retail | 2022 |
| LM Construction Cleaners Limited | Administrative & support | 2019 |
| LMB Jones Joinery Ltd | Construction | 2024 |
| Lnft Properties Limited | Real estate | 2019 |
| Lockered.Xyz Limited | Manufacturing | 2024 |
| Lola Trade Ltd | Wholesale & retail | 2020 |
| Lola’S Beauty & Glow Ltd | Other services | 2025 |
| Lolmog Ltd | Health & social care | 2023 |
| Londonile Textiles Ltd | Wholesale & retail | 2020 |
| Lonewolf Logistics Ltd | Transport & logistics | 2024 |
| Loop Security Ltd | Information & communication | 2026 |
| Lord Logistics Group Ltd | Transport & logistics | 2025 |
| Lord Street Store Limited | Wholesale & retail | 2025 |
| LOT Aero Services Ltd | Administrative & support | 2013 |
| Lotus Underwear Ltd | Wholesale & retail | 2022 |
| Lowe Lettings Limited | Real estate | 2022 |
| Lowton Motor Spares Ltd | Wholesale & retail | 2024 |
| LPD Electrical Wholesalers Ltd | Wholesale & retail | 1999 |
| LPM Logistics Ltd | Transport & logistics | 2025 |
| LSJ Digital Ventures Limited | Information & communication | 2026 |
| Lucky Star 7 Ltd | Hospitality | 2026 |
| Lucy Green PT Ltd | Arts & recreation | 2024 |
| Luxeora Ltd | Wholesale & retail | 2025 |
| Luxury Hair by Treasure Limited | Other services | 2025 |
| Lyndon Asset Management Limited | Financial services | 2025 |
| Lyndon Coin Leisure Limited | Arts & recreation | 2018 |
| Lynn Lloyd Soft Furnishings Ltd | Manufacturing | 2006 |