| J & J Property SCO Ltd | Administrative & support | 2026 |
| J & M Mcnee Limited | Agriculture & fishing | 2009 |
| J & M Property Services (Scotland) Limited | Administrative & support | 2003 |
| J a Bryans Ltd | Information & communication | 2025 |
| J B Engineering Ltd | Manufacturing | 2006 |
| J D Hamilton Farms Limited | Agriculture & fishing | 2014 |
| J G Joiners & Builders Ltd. | Construction | 2002 |
| J&G Autotech Ltd | Wholesale & retail | 2025 |
| J&M Landscaping and Construction Ltd | Construction | 2024 |
| J&M Property Services (Shotts) Limited | Extraterritorial | 2014 |
| J&N Property Holdings Limited | Real estate | 2026 |
| J&R Garage Ltd | Wholesale & retail | 2011 |
| J. Russell (F/A) Limited | Manufacturing | 2005 |
| J. W. Johnston Limited | Administrative & support | 2016 |
| J.Carpenter Services Ltd | Wholesale & retail | 2021 |
| JAJ Homes Ltd | Real estate | 2026 |
| JAL Properties Limited | Real estate | 1995 |
| JAMIL786 Ltd | Wholesale & retail | 2022 |
| Jands Feeds Manufacturing Limited | Manufacturing | 2008 |
| Jaroma Building Services Ltd | Construction | 2024 |
| Jaroma Joinery Ltd | Manufacturing | 2023 |
| Jarron Property Investments Ltd | Real estate | 2026 |
| JAS Welding & Fabrication Ltd | Construction | 2014 |
| Javs Investments Ltd | Wholesale & retail | 2023 |
| Jaworski Transport Services (JTS) Limited | Transport & logistics | 2017 |
| JC Coatings Ltd | Construction | 2026 |
| JCM Security Services Ltd | Administrative & support | 2026 |
| JCW Property Management Limited | Real estate | 2024 |
| JF Weld Solutions Ltd | Construction | 2023 |
| Jh&Hh Limited | Administrative & support | 2018 |
| Jinty Dawg Ltd | Other services | 2018 |
| Jjmm Logistics Limited | Transport & logistics | 2021 |
| JKG Tuning Limited | Professional & scientific | 2024 |
| Jklj Testing Services Ltd | Information & communication | 2007 |
| JKW Contracts Ltd | Construction | 2025 |
| JM Construction & Landscaping Limited | Administrative & support | 2023 |
| JM Experience Haulage Ltd | Transport & logistics | 2017 |
| JM Exterior Cleaning (Scotland) Ltd | Administrative & support | 2025 |
| Jmdow Forestry Limited | Agriculture & fishing | 2026 |
| JME Plumbing & Heating Ltd | Construction | 2025 |
| Jmmt Property Services Ltd | Real estate | 2025 |
| JNC Scotland Ltd | Extraterritorial | 2017 |
| Jobrown Hair Ltd | Other services | 2026 |
| John Allan Architectural Design Limited | Professional & scientific | 2026 |
| John Donoghue Roofing & Building Services Ltd | Construction | 2024 |
| John Mcneill Developments Ltd | Construction | 2025 |
| John Mcneill Ltd | Construction | 2023 |
| John Young Builders Ltd | Construction | 2017 |
| Johns Auto Services Ltd | Wholesale & retail | 2022 |
| Johnston (Agricultural Limes) Limited | Professional & scientific | 1961 |
| Johnston Fuels Limited | Wholesale & retail | 2009 |
| Joinery and Building Solutions Ltd | Construction | 2019 |
| Jones and Hoyland Limited | Wholesale & retail | 1990 |
| Jools Robertson Ltd | Administrative & support | 2015 |
| Jordan Design Associates Ltd. | Professional & scientific | 2007 |
| Jordan TM Limited | Transport & logistics | 2016 |
| Jordan's Recovery Ltd | Transport & logistics | 2024 |
| Jordyn K Productions Ltd | Professional & scientific | 2023 |
| JPM Contracts Scot Ltd | Construction | 2026 |
| JRL Technology Solutions Limited | Information & communication | 2014 |
| JRN Technology Ltd | Information & communication | 2025 |
| Jrrl Ltd | Hospitality | 2025 |
| JSM Joinery & Construction Ltd | Construction | 2025 |
| JT96 Limited | Hospitality | 2025 |
| JTB Accountancy Services Ltd. | Professional & scientific | 2002 |
| Julie Livingston-Kerr Limited | Professional & scientific | 2016 |
| Just for Doing IT Limited | Information & communication | 2015 |
| Just Plumb Ltd | Construction | 2020 |
| Just Simply Accounting Limited | Professional & scientific | 2007 |
| JWJ Bathgate Limited | Real estate | 2016 |
| JWJ Residential Limited | Real estate | 2024 |
| K C J Projects Ltd | Construction | 2025 |
| K Lind Services Limited | Construction | 2020 |
| K P Gardiner Decorators Limited | Construction | 2024 |
| K&J Enterprise Limited | Wholesale & retail | 2025 |
| K.M. Transport Scotland Limited | Transport & logistics | 2026 |
| K.R.S Signalling & Assessments Ltd | Manufacturing | 2024 |
| K1 Salon Ltd | Other services | 2025 |
| K1 Spice Cuisine Ltd | Hospitality | 2025 |
| Kaim Park Investments Limited | Real estate | 2015 |
| Kaimpark Properties Ltd | Real estate | 2009 |
| Kalabren Consulting Limited | Financial services | 2015 |
| Kaneh Limited | Wholesale & retail | 2026 |
| Karmed Limited | Health & social care | 2020 |
| Kasa Events Ltd | Hospitality | 2023 |
| Kasperkassie Property Management Ltd | Hospitality | 2025 |
| Kawa Property Solutions Ltd | Construction | 2019 |
| KAY Construction Building Services Ltd | Construction | 2018 |
| Kaymac Services Limited | Construction | 2018 |
| Kdam Ltd | Real estate | 2023 |
| KDO Services Limited | Health & social care | 2025 |
| Kean Property Ltd | Real estate | 2023 |
| Keeble Creative Ltd | Professional & scientific | 2009 |
| Kelbak Ltd | Real estate | 2024 |
| Kellys Carpets Limited | Wholesale & retail | 2016 |
| Kenaff Limited | Information & communication | 2026 |
| Kenneway GAS Ltd | Construction | 2020 |
| Kenneway Properties Ltd | Real estate | 2025 |
| Kerr Property Limited | Real estate | 2024 |
| Kerrco Ltd | Financial services | 2019 |