| Linlithgow Rugby Club Ltd | Arts & recreation | 2016 |
| Linlithgow Travel Ltd | Administrative & support | 2015 |
| Linlithgow Union Canal Society | Transport & logistics | 1980 |
| Lithco Limited | Professional & scientific | 2017 |
| Lochside Cafe Ltd | Hospitality | 2019 |
| Logic Property Finance Ltd | Financial services | 2021 |
| Longlith Ltd | Real estate | 2012 |
| Longlith Retail Limited | Wholesale & retail | 2015 |
| Lothian Analyser Services Limited | Professional & scientific | 2000 |
| Lothlorien Dog Walking Ltd | Other services | 2021 |
| Lothlorien DTC Ltd | Other services | 2019 |
| Lounge 52 Ltd | Hospitality | 2025 |
| Lowland Planning Associates Limited | Professional & scientific | 2017 |
| Lugo Limited | Information & communication | 2003 |
| Lulu's Linlithgow Ltd | Other services | 2020 |
| M & V Taxis Ltd. | Transport & logistics | 2005 |
| M Three Solutions Ltd | Information & communication | 2022 |
| MA Consultancy Services Ltd | Professional & scientific | 2026 |
| Macdonald Mcewan Limited | Administrative & support | 2008 |
| Magnokatto Ltd | Real estate | 2023 |
| Mains Park Trading Co. Ltd | Hospitality | 2022 |
| Maisie Gray Ltd | Wholesale & retail | 2024 |
| Maison Crest Limited | Wholesale & retail | 2026 |
| Mando Mando Ltd | Information & communication | 2017 |
| Mannerston Cabinetmaking Limited | Manufacturing | 2025 |
| Mannerston Investments Limited | Financial services | 2023 |
| Mannerston Property Services Ltd | Real estate | 2021 |
| Mannerstons Ltd. | Hospitality | 2013 |
| Marchwood Accountancy Services Limited | Professional & scientific | 2003 |
| Mark the Spark Electrical Services Ltd | Construction | 2017 |
| Marketing Code Limited | Information & communication | 2017 |
| Mary's Meanders Ltd | Administrative & support | 2017 |
| Mason Belle Ltd | Hospitality | 2017 |
| Mason Homes Edinburgh Limited | Real estate | 2026 |
| Mason Homes Lettings Limited | Real estate | 2024 |
| Mason Homes Real Estate Limited | Real estate | 2025 |
| Masterbuilders Linlithgow Ltd | Arts & recreation | 2015 |
| Maxim (Rosc) Ltd | Construction | 2017 |
| Maxymiser Limited | Information & communication | 2004 |
| Mcdermid Properties Limited | Real estate | 2025 |
| Mcfarlane Joinery Services Ltd | Construction | 2022 |
| Mcmillan Consultancy Ltd | Professional & scientific | 2015 |
| Mcmorrow Holdings Ltd | Real estate | 2022 |
| Mcmorrow Properties Ltd | Real estate | 2017 |
| Mcphie Coachbuilders & Repairers Ltd. | Manufacturing | 2002 |
| MDK Letting Limited | Real estate | 2020 |
| Meadow of Light Limited | Arts & recreation | 2025 |
| Meecham Consultancy Limited | Professional & scientific | 2026 |
| Menzies Enterprises Ltd | Professional & scientific | 2008 |
| Meyrick Property Management Ltd. | Real estate | 2005 |
| MGH Property Ltd | Real estate | 2022 |
| Midfield Engineering Solutions Ltd | Transport & logistics | 2023 |
| Mind & Mission Ltd | Education | 2019 |
| Mojique Neurosciences Ltd | Professional & scientific | 2023 |
| Money Check (West Lothian) Ltd. | Real estate | 2016 |
| Money Check Ltd | Financial services | 2024 |
| Montague Sterling Limited | Wholesale & retail | 2026 |
| Moonrise Lingerie Ltd | Wholesale & retail | 2011 |
| Morrison Family IC Ltd | Real estate | 2024 |
| MR Tony's Ltd | Hospitality | 2025 |
| MRD030918 Limited | Arts & recreation | 2018 |
| Mrfp Ltd | Professional & scientific | 2024 |
| MWD Sports Consultancy Limited | Health & social care | 2010 |
| Myrehead Limited | Real estate | 2023 |
| Mystrica Ltd | Manufacturing | 2006 |
| N S Agri Ltd | Manufacturing | 2020 |
| NEE Projects Ltd | Construction | 2025 |
| Neil Donaldson Limited | Administrative & support | 2026 |
| Nelson & Sophia Limited | Hospitality | 2022 |
| Neupath Ltd | Health & social care | 2023 |
| New World Financial Team Ltd | Information & communication | 2012 |
| Newall Farrier Services Ltd | Agriculture & fishing | 2024 |
| Newall Farrier Supplies Ltd | Wholesale & retail | 2023 |
| Newbridge Construction Supplies Ltd | Wholesale & retail | 2016 |
| Newlands Murray Ltd | Professional & scientific | 2021 |
| Ngwatt Property Ltd | Real estate | 2018 |
| Nick Drainey Media Ltd | Arts & recreation | 2013 |
| NO. 41 Consulting Ltd | Professional & scientific | 2010 |
| North Precision Limited | Construction | 2026 |
| Notmind Ltd | Transport & logistics | 2026 |
| NRJ Group Ltd | Professional & scientific | 2017 |
| Numberbusters Limited | Professional & scientific | 2013 |
| Nuova Alba Residential Ltd. | Real estate | 2018 |
| Oaklands (Scotland) Ltd | Wholesale & retail | 2024 |
| Oliver Electrics Limited | Construction | 2013 |
| Omni Experts Consulting Ltd | Professional & scientific | 2022 |
| One Linlithgow Ltd. | Other services | 2014 |
| One-Stop Inside-Out Limited | Construction | 2012 |
| Oneaxis Limited | Construction | 1996 |
| OPM Tuning Ltd | Wholesale & retail | 2018 |
| Origin Peptides Limited | Professional & scientific | 2018 |
| OTI Europe Limited | Education | 2014 |
| Ourpettech Ltd | Other services | 2014 |
| Ovenstone Homes Limited | Real estate | 2023 |
| Papingo Games Ltd | Wholesale & retail | 2024 |
| Park Farm Renewables Ltd | Energy | 2013 |
| Patepate Limited | Manufacturing | 2012 |
| Paul Rolfe Estates Ltd | Real estate | 2015 |
| Paul Rolfe Stirling Ltd | Real estate | 2017 |
| Paulmundy Catering Ltd | Hospitality | 2018 |