| James Sherry (Funeral Directors) Ltd. | Other services | 2009 |
| Jamiesonitsolutions Ltd | Information & communication | 2025 |
| Jan's Enterprise Ltd | Wholesale & retail | 2017 |
| Janex Limited | Manufacturing | 1992 |
| Janlaw Limited | Administrative & support | 2012 |
| Japan Wishaw Motors Ltd | Wholesale & retail | 2024 |
| Jaqcars Ltd | Transport & logistics | 2006 |
| Jardin DE LUZ (NO. 337) Limited | Households | 1985 |
| Jardines Travel Ltd | Transport & logistics | 2016 |
| JAS Inspection Ltd | Professional & scientific | 2008 |
| Jattitude Ltd | Wholesale & retail | 2025 |
| Jaxt Limited | Construction | 2025 |
| Jay-Bee Investments Limited | Real estate | 1984 |
| Jaybee Pubs Ltd | Hospitality | 2020 |
| Jaymeg Holdings Limited | Financial services | 2024 |
| Jaymeg Ltd | Wholesale & retail | 2012 |
| JB Ayrshire Property Maintenance Limited | Construction | 2021 |
| JB Production Group Limited | Information & communication | 2026 |
| JB Tyre Services Scotland Ltd | Manufacturing | 2009 |
| JBR Property Management Group Ltd | Households | 2026 |
| JC Plumbing (Scotland) Limited | Construction | 2023 |
| JE Scotland Ltd | Financial services | 2021 |
| JED (Scotland) Ltd | Real estate | 2022 |
| Jenflow Systems Limited | Wholesale & retail | 2016 |
| JF Lift Services Limited | Manufacturing | 2019 |
| JFB Collaborative Contract Solutions Ltd | Professional & scientific | 2022 |
| JG Software Solutions Limited | Information & communication | 2010 |
| JGS Cars Ltd | Administrative & support | 2018 |
| JHC Clark Joiners Ltd | Construction | 2015 |
| JIM Mccusker Ltd | Professional & scientific | 2011 |
| JIM Rundle Decorators Ltd | Construction | 2014 |
| JIM Walker Joinery and Shopfitting Limited | Construction | 2015 |
| JJ Rentals Ltd | Administrative & support | 2025 |
| JJP Garden Care Limited | Administrative & support | 2025 |
| JJR (Scotland) Limited | Other services | 2024 |
| JKM Plant Limited | Construction | 2020 |
| JL Quinn Properties Ltd | Real estate | 2024 |
| JLC Properties Scotland Ltd | Real estate | 2022 |
| JLE Developments Ltd | Real estate | 2016 |
| JLE Project Management Ltd | Professional & scientific | 2016 |
| JLH Machines Limited | Administrative & support | 2017 |
| Jlmac Scotland Ltd | Financial services | 2021 |
| JLP Garage Limited | Wholesale & retail | 2018 |
| JLW Property Services Ltd | Construction | 2023 |
| JM Brickwork (Glasgow) Ltd | Construction | 2022 |
| JM Commercial Property (Scotland) Ltd | Real estate | 2022 |
| JM One Property Ltd | Real estate | 2024 |
| JM Quality Foods Ltd | Wholesale & retail | 2015 |
| JM Signature (Food) Ltd | Hospitality | 2025 |
| JM Signature Limited | Professional & scientific | 2016 |
| JM Structures Limited | Construction | 2025 |
| JMA Medics Ltd | Extraterritorial | 2012 |
| Jmcc Consultancy Ltd | Professional & scientific | 2025 |
| Jmcl Roofing Ltd | Construction | 2026 |
| JNC Trowel Trades Ltd. | Construction | 2006 |
| JNC WET Trades Limited | Construction | 2010 |
| Joe's Sweetie Barn Ltd | Wholesale & retail | 2023 |
| Joenellos Ltd | Hospitality | 2018 |
| John Black & SON Limited | Wholesale & retail | 2005 |
| John Dempsey Independent Financial Services Limited | Financial services | 2007 |
| John Donnelly Consultancy Ltd | Public administration | 2023 |
| John F Friel Limited | Construction | 2007 |
| John Kirk Joiner & Builder Ltd | Construction | 2014 |
| John Mclaughlin Design Ltd | Professional & scientific | 2020 |
| John Moffat & Sons Ltd | Administrative & support | 2014 |
| John Wilson Photography Ltd | Professional & scientific | 2023 |
| Johnada Ltd | Information & communication | 2024 |
| Johnson & Love Limited | Real estate | 2006 |
| Johnston Technical Services Limited | Information & communication | 2004 |
| Johnstone Transport Ltd | Transport & logistics | 2021 |
| Jona Developments (Scotland) Limited | Other services | 2024 |
| Jordan & Thomson Developments Ltd | Construction | 2019 |
| Jordan & Thomson Properties Ltd | Real estate | 2017 |
| Jordan Electrics Limited | Construction | 1989 |
| Jordan Events Ltd | Hospitality | 2022 |
| Jordan Management Limited | Professional & scientific | 2003 |
| Joro Environmental (Consultancy Services) Ltd | Wholesale & retail | 2013 |
| JOS Cleaning Service Ltd | Administrative & support | 2010 |
| Joseph KM Ltd | Wholesale & retail | 2021 |
| Joya Bridal Limited | Wholesale & retail | 2024 |
| JP Completions Limited | Administrative & support | 2014 |
| JPW (Scotland) Ltd | Construction | 2026 |
| JRC Joinery and Construction Ltd | Construction | 2025 |
| JRI Properties Limited | Real estate | 2003 |
| JRM Decor Ltd | Construction | 2015 |
| JRN Trading (Scotland) Ltd. | Wholesale & retail | 2021 |
| JS Smart Interior Solutions Ltd | Construction | 2015 |
| Jsgh Limited | Professional & scientific | 2010 |
| JSM Logistics Glasgow Limited | Transport & logistics | 2016 |
| JSM Technical Services Ltd | Construction | 2021 |
| JSN Real Estate Ltd | Real estate | 2018 |
| JU Properties Ltd | Real estate | 2019 |
| Julia & Macs Snacks Ltd | Hospitality | 2020 |
| Julia & Macs Snacks Motherwell Ltd | Hospitality | 2024 |
| Julie Lamont Photography Ltd. | Professional & scientific | 2003 |
| JUMBO25 Ltd | Hospitality | 2025 |
| Jump & Tumble Ltd | Arts & recreation | 2017 |
| Junaid Health Care Limited | Health & social care | 2018 |
| Junior's Pool & Sports Bar Ltd | Hospitality | 2020 |
| Junofem UK Limited | Health & social care | 2022 |