| Jupiter Union LP | | 2013 |
| Jupiter United LP | | 2016 |
| Jupitous Ltd | Professional & scientific | 2020 |
| Jura Partners Limited | Professional & scientific | 2019 |
| Juran Impex LP | | 2012 |
| Jurant Property Ltd | Households | 2025 |
| Jurule Ltd | Real estate | 2020 |
| Just Boarded LP | | 2019 |
| Just Business Services L.P. | | 2011 |
| Just Can’T GET the Staff Ltd | Administrative & support | 2025 |
| Just Capital Ventures Overseas L.P. | | 2010 |
| Just Chicken Edinburgh Ltd | Hospitality | 2025 |
| Just Click Here Ltd | Information & communication | 2019 |
| Just Dogs Limited | Wholesale & retail | 2006 |
| Just Energy Consulting Ltd | Energy | 2018 |
| Just Equities Holding L.P. | | 2018 |
| Just Equities L.P. | | 2012 |
| Just Go Friends Ltd | Professional & scientific | 2022 |
| Just Go Transfer Ltd | Transport & logistics | 2022 |
| Just Herbs Limited | Health & social care | 2020 |
| Just Like Flying Ltd | Hospitality | 2009 |
| Just Marketing LP | | 2011 |
| Just Mission LP | | 2016 |
| Just Mystique LP | | 2016 |
| Just Nexus LP | | 2016 |
| Just Oasis LP | | 2016 |
| Just People - HR Solutions Ltd. | Professional & scientific | 2017 |
| Just Promotions L.P. | | 2011 |
| Just Properties Europe L.P. | | 2012 |
| Just Recruit (Scotland) Ltd | Administrative & support | 2016 |
| Just Rigging & Inspections Ltd | Manufacturing | 2014 |
| Just Scotland Tours Ltd | Administrative & support | 2025 |
| Just Solutions Worldwide L.P. | | 2011 |
| Just the Tonic Productions Ltd | Wholesale & retail | 2020 |
| Just WIN Scotland C.I.C. | Health & social care | 2026 |
| Justdave L Ltd | Transport & logistics | 2025 |
| Justin Holdings Ltd | Real estate | 2024 |
| Justine Miller Ltd | Professional & scientific | 2024 |
| Justiva LP | | 2017 |
| Justlin Holding LP | | 2019 |
| Juto BIO Ltd | Manufacturing | 2026 |
| Juvat Limited | Arts & recreation | 2015 |
| Juvenura Trade LP | | 2014 |
| JVC Property Management Ltd | Hospitality | 2024 |
| JVG GP Limited | Wholesale & retail | 2021 |
| Jvgvver LP | | 2004 |
| JVL Solutions Ltd | Professional & scientific | 2011 |
| JVM Food Ltd | Hospitality | 2023 |
| JVT Maintenance Limited | Construction | 2026 |
| JW Group (Scotland) Ltd. | Information & communication | 2022 |
| JW Investment Management Ltd | Extraterritorial | 2012 |
| Jweb Limited | Professional & scientific | 2015 |
| JWG Supplies Ltd | Wholesale & retail | 2023 |
| Jwkong Ltd | Hospitality | 2025 |
| JWL Business Services Ltd | Professional & scientific | 2016 |
| JWM Cars Ltd. | Wholesale & retail | 2020 |
| JWP Media Limited | Professional & scientific | 2026 |
| JWS Engineering Ltd | Professional & scientific | 2018 |
| Jwtm Investment Management Ltd | Extraterritorial | 2012 |
| JX Consulting Limited | Professional & scientific | 2022 |
| JXS Holdings UK Ltd | Professional & scientific | 2024 |
| JYJ LLP | | 2008 |
| JZ and SON Limited | Construction | 2022 |
| K & E Coachworks Limited | Wholesale & retail | 2013 |
| K & L Catering Limited | Hospitality | 2008 |
| K & L Plae Limited | Hospitality | 2022 |
| K & S MIR Limited | Hospitality | 2016 |
| K & T Plumbing & Heating Ltd | Construction | 2023 |
| K and C Stores Ltd | Wholesale & retail | 2024 |
| K Barratt Communications Ltd | Administrative & support | 2016 |
| K Construction (Holdings) Limited | Financial services | 2013 |
| K Construction (Scotland) Limited | Construction | 2005 |
| K D Taxis Ltd. | Professional & scientific | 1998 |
| K D Wallace Eyecare Limited | Wholesale & retail | 2014 |
| K Group (Scotland) Ltd | Financial services | 2025 |
| K I Kitchens Limited | Wholesale & retail | 1994 |
| K Infinti Ltd | Hospitality | 2025 |
| K K Jewellers Limited | Wholesale & retail | 2015 |
| K Nixon Ltd | Information & communication | 2012 |
| K Nushi Ltd | Wholesale & retail | 2024 |
| K Plus a Limited | Real estate | 2024 |
| K Property (Scotland) Ltd | Construction | 2025 |
| K R Sweet Home Ltd | Hospitality | 2023 |
| K Real Solutions Ltd | Information & communication | 2026 |
| K Scaffolding and Building Limited | Construction | 2018 |
| K Toasts Ltd | Hospitality | 2024 |
| K Two Products (Design) Limited | Professional & scientific | 2003 |
| K Vincent Plastering Ltd | Construction | 2024 |
| K Wilkes Consulting Ltd | Professional & scientific | 2022 |
| K&C Properties Scotland Limited | Real estate | 2024 |
| K&G Family Properties Ltd | Real estate | 2022 |
| K&L Associates Limited | Professional & scientific | 2021 |
| K&M Building System Ltd | Construction | 2011 |
| K&R Kustom Worxs Ltd. | Extraterritorial | 2021 |
| K-Arc Studio Ltd | Professional & scientific | 2023 |
| K-Ecoforge Ltd | Construction | 2026 |
| K-P Estate and Letting Agency Ltd | Real estate | 2022 |
| K-Star (1451) Ltd | Arts & recreation | 2017 |
| K-Star (Holdings) Ltd | Financial services | 2025 |
| K-Star (Old Town) Limited | Arts & recreation | 2017 |