| Lochnests Limited | Real estate | 2021 |
| Lorimer Scott Investments Limited | Wholesale & retail | 2024 |
| Louis Testing Consultancy Limited | Professional & scientific | 2025 |
| LOW & Wyse Limited | Professional & scientific | 2019 |
| Lucinda Russell Racing Limited | Agriculture & fishing | 2020 |
| Luxury Textiles Collections Limited | Manufacturing | 2026 |
| Luxury Textiles Ltd | Manufacturing | 2022 |
| Lynflint Limited | Extraterritorial | 1987 |
| Lynsay Bell Limited | Professional & scientific | 2013 |
| M & M (Carnoustie) Limited | Manufacturing | 2016 |
| M&S Character Homes Limited | Construction | 2007 |
| Mack Access Ltd | Other services | 2018 |
| Mackay & Palacios Ltd | Real estate | 2021 |
| Macpherson Property Renovations Limited | Real estate | 2025 |
| Malcolm John Mcfarlane Consultancy Ltd | Professional & scientific | 2022 |
| Malfmedia Limited | Information & communication | 2014 |
| Manasa Hrudhaya Limited | Health & social care | 2022 |
| Manxbmd Ltd | Professional & scientific | 2026 |
| Maplewood Developments Limited | Construction | 2004 |
| Mawmill Produce Limited | Agriculture & fishing | 2025 |
| Mcfadzean Ltd. | Construction | 2005 |
| Mcgrath Roofing Services Ltd | Administrative & support | 2017 |
| Mcgregor Livestock Ltd | Agriculture & fishing | 2023 |
| Meadowhead Farm Limited | Agriculture & fishing | 2017 |
| Meadows Books Limited | Wholesale & retail | 2025 |
| Medeazy Ltd | Health & social care | 2025 |
| Mhor Energy Limited | Manufacturing | 2019 |
| Michael Combe Haulage Limited | Transport & logistics | 2014 |
| Morag Thomson Marketing & PR Limited | Professional & scientific | 2014 |
| Morlich Services Ltd | Professional & scientific | 2008 |
| Mozolowski & Murray (Scotland) Limited | Manufacturing | 1993 |
| MPR (Scotland) Limited | Construction | 2016 |
| MS Joiners Limited | Construction | 2018 |
| Myco Mushrooms Ltd | Administrative & support | 2021 |
| N.J. Macton Ltd | Manufacturing | 2023 |
| Nailed IT Construction Ltd | Construction | 2019 |
| Naked Orange Limited | Wholesale & retail | 2020 |
| Nastech Design Limited | Professional & scientific | 2012 |
| NB Hairdressing Ltd | Other services | 2017 |
| NDM Transmission Project Services Ltd | Construction | 2022 |
| New World Investments Limited | Real estate | 2004 |
| Niagara Pumps Limited | Manufacturing | 2025 |
| Noizee Limited | Information & communication | 2017 |
| Norda Intermediary Services Ltd | Financial services | 2019 |
| North Britannia Marine Surveys Limited | Financial services | 2012 |
| North Chill Limited | Manufacturing | 2024 |
| North East Transport Refrigeration Services Ltd. | Transport & logistics | 2004 |
| Northborn Ltd | Professional & scientific | 2019 |
| NRG Properties Limited | Real estate | 1999 |
| NSE Drinks Ltd | Manufacturing | 2025 |
| Occupational Health Risk Management Services Limited | Health & social care | 2011 |
| Ochilview Mushrooms Ltd | Agriculture & fishing | 2025 |
| ODA Systems Ltd | Administrative & support | 2014 |
| Oliver Owen Ltd | Professional & scientific | 2021 |
| Open Distillery Limited | Manufacturing | 2017 |
| Orbit Block AI Limited | Information & communication | 2024 |
| Orwell Developments (Milnathort) Limited | Construction | 2017 |
| Orwell Farm Limited | Real estate | 2020 |
| Osprey Anaesthesia Limited | Health & social care | 2016 |
| Otura Ltd | Information & communication | 2024 |
| P & T Consulting Limited | Professional & scientific | 2001 |
| P. & J. Haggart Limited | Wholesale & retail | 1962 |
| PA Advocacy Ltd | Professional & scientific | 2015 |
| Pankhurst Decorators Limited | Construction | 2007 |
| Pannater Ltd | Professional & scientific | 2023 |
| Patterns AI Limited | Information & communication | 2016 |
| Paub Construction Limited | Construction | 2014 |
| Paul Seaman Limited | Professional & scientific | 2022 |
| Pawmill Dog Park Limited | Real estate | 2022 |
| PDN Sales Ltd | Wholesale & retail | 2015 |
| Pearson Mortgages Ltd | Financial services | 2025 |
| Peel Tech Limited | Manufacturing | 2014 |
| Pentland Park Ltd | Real estate | 2020 |
| Pepperwood Property Holdings Limited | Real estate | 2020 |
| Perdix Anser Limited | Real estate | 2004 |
| Performance Carbon Limited | Manufacturing | 2007 |
| Perth Trusted Partners Limited | Other services | 2025 |
| Phoenix Roofing Solutions Ltd | Construction | 2025 |
| PHS Heating Services Ltd | Construction | 2021 |
| Pilates Haus Ltd | Arts & recreation | 2025 |
| Pinkie Mains Developments Limited | Real estate | 2013 |
| Pipedream Studio Ltd | Information & communication | 2018 |
| Pitch Village Limited | Arts & recreation | 2007 |
| PKS Roofs and Walls Ltd | Construction | 2011 |
| Planet Goblin Ltd | Manufacturing | 2022 |
| Plantcustic Limited | Professional & scientific | 2025 |
| Portus Wealth Limited | Financial services | 2015 |
| Positec (UK) Ltd | Information & communication | 2010 |
| Primed Engineering Limited | Construction | 2021 |
| Property Studios Limited | Real estate | 2014 |
| Pump Services Scotland Ltd | Manufacturing | 2024 |
| PVJ Properties Limited | Real estate | 2013 |
| Rainbow Educational Resources Limited | Education | 2009 |
| Rbsn Architecture Ltd | Professional & scientific | 2025 |
| Regency Memorials (Scotland) Limited | Professional & scientific | 2007 |
| Resistance Security Ltd | Administrative & support | 2025 |
| RHV Consulting Limited | Professional & scientific | 2018 |
| RJD 23 Ltd | Other services | 2019 |
| Roam Tuition Services Ltd | Education | 2026 |
| Robert Sandilands & Sons Limited | Construction | 1980 |