| Queen Charlotte Apartments Ltd | Real estate | 2024 |
| Queen Charlotte Rooms Limited | Hospitality | 2026 |
| Queen Street Distillers Ltd | Manufacturing | 2024 |
| Queen Street Investments Limited | Professional & scientific | 1983 |
| Queen's Hall (Edinburgh) Catering Limited(The) | Hospitality | 1984 |
| Queen's Hall (Edinburgh) Limited (the) | Arts & recreation | 1978 |
| Queenlee Consulting LP | | 2017 |
| Queensberry Properties (Bonnington) Ltd | Real estate | 2016 |
| Queensberry Properties (Kinnear Road) Limited | Construction | 2013 |
| Queensberry Properties (New Waverley Lettings) Limited | Real estate | 2024 |
| Queensberry Properties (New Waverley North) Limited | Construction | 2020 |
| Queensberry Properties (New Waverley) Limited | Construction | 2018 |
| Queensberry Properties (Otago) Limited | Construction | 2018 |
| Queensberry Properties (Peebles) Limited | Construction | 2007 |
| Queensberry Properties Limited | Construction | 2006 |
| Queensferry Attorneys Limited | Professional & scientific | 1994 |
| Queensferry Executors Limited | Professional & scientific | 1995 |
| Queensferry Formations Limited | Professional & scientific | 1993 |
| Queensferry Property Trustees Limited | Professional & scientific | 1994 |
| Queensferry Registrations Limited | Professional & scientific | 1993 |
| Queensferry Secretaries Limited | Professional & scientific | 1993 |
| Queensferry Securities Limited | Professional & scientific | 1993 |
| Queensferry Square Limited | Professional & scientific | 2006 |
| Queensferry Trustee Company Limited | Professional & scientific | 1995 |
| Queensgate Fusion Co-Invest Carry GP LLP | | 2016 |
| Queensgate Fusion Co-Invest Carry LP | | 2016 |
| Queensgate Investments II Carry GP LLP | | 2014 |
| Queensgate Investments II Carry LP | | 2014 |
| Queenslove Foundation | Health & social care | 2019 |
| Queensway Park Data Centres Limited | Real estate | 2014 |
| Queguay LP | | 2020 |
| Quell Intelligence Ltd | Administrative & support | 2025 |
| Quelm Software Ltd | Information & communication | 2026 |
| Quenvara Concept Mesh Ltd | Information & communication | 2026 |
| Quero Impex LP | | 2013 |
| Query Click Limited | Information & communication | 2008 |
| Quest Alliance LP | | 2015 |
| Quest Capital L.P. | | 2008 |
| Quest Corporate Finance Limited | Financial services | 2015 |
| Quest Corporate Limited | Professional & scientific | 2008 |
| Quest Systems and Solutions Ltd | Professional & scientific | 2025 |
| Quester Venture GP Partnership | | 2001 |
| Question of Torque Limited | Information & communication | 2025 |
| Questkirk Bourgeois LP | | 2017 |
| Questquake Events Ltd | Extraterritorial | 2025 |
| Quetzal Global Initiative Ltd | Extraterritorial | 2021 |
| Quetzal Limited | Agriculture & fishing | 2011 |
| Quick Engineering Services Ltd | Professional & scientific | 2020 |
| Quick FOX Ltd | Information & communication | 2022 |
| Quick Service (Scotland) Limited | Transport & logistics | 2014 |
| Quick-Steel-Fix Limited | Construction | 2013 |
| Quickandfastservices Limited | Households | 2023 |
| Quickfix Trades Ltd | Professional & scientific | 2015 |
| Quickhire Recruitment Limited | Administrative & support | 2012 |
| Quicksilver Consultants Ltd | Administrative & support | 2011 |
| Quicksilver Investment Group LP | | 2016 |
| Quickstone UK Limited | Extraterritorial | 2005 |
| Quid Global LP | | 2017 |
| Quiet Fire Ltd | Professional & scientific | 2026 |
| Quiet MAN Taverns 2 Limited | Extraterritorial | 2016 |
| Quiet MAN Taverns Limited | Hospitality | 2014 |
| Quiet Scotsman Ltd | Hospitality | 2011 |
| Quietman Pubs Ltd | Hospitality | 2018 |
| Quill Form Limited | Administrative & support | 1986 |
| Quill Serve Limited | Professional & scientific | 1986 |
| Quilon Foods Ltd | Hospitality | 2026 |
| Quilt Art | Arts & recreation | 1997 |
| Quiltex Quest LP | | 2017 |
| Quincorp Ventures LP | | 2014 |
| Quinn Cabs | | 1998 |
| Quinn Dental Ltd | Wholesale & retail | 2021 |
| Quinn Electrical Solutions Limited | Construction | 2020 |
| Quinns Law Accountants (Scotland) Ltd | Professional & scientific | 2023 |
| Quinta Capital LP | | 2013 |
| Quirkink Limited | Real estate | 2013 |
| Quirkos Limited | Information & communication | 2013 |
| Quirky Apartments Ltd | Real estate | 2017 |
| Quirky Gift Library Ltd | Manufacturing | 2007 |
| Quirky Property Management Ltd | Real estate | 2021 |
| Quod ERO Spero Ltd. | Wholesale & retail | 2021 |
| Quoin Systems Limited | Administrative & support | 2021 |
| Quopro Management LP | | 2014 |
| Quorum Cyber Security Limited | Information & communication | 2015 |
| Quorum Limited | Extraterritorial | 2015 |
| Quorum Network Resources Ltd. | Information & communication | 1999 |
| Quorum Property Ltd | Real estate | 2019 |
| Quorum Trustees Limited | Extraterritorial | 2019 |
| Quosient Ltd. | Information & communication | 2019 |
| Quoteron Investment LP | | 2012 |
| Qureshi Editorial Ltd | Information & communication | 2022 |
| Qurevo Ltd | Wholesale & retail | 2026 |
| Quverlion Trading LP | | 2017 |
| QW Food Limited | Hospitality | 2017 |
| Qwick-Fixgarage Ltd | Wholesale & retail | 2025 |
| Qwik Vehicle Solutions Ltd | Wholesale & retail | 2026 |
| Qwotta LP | | 2016 |
| R & a (Edinburgh) Limited | Hospitality | 2018 |
| R & a Projects Scotland Limited | Construction | 2022 |
| R & B Galloway Ltd | Real estate | 2026 |
| R & B Holdings Limited | Professional & scientific | 2006 |