| Kalton Property Limited | Real estate | 2020 |
| Kamal Wilkie Steel Scotland Ltd | Financial services | 2026 |
| Kamalpur Musa Ltd | Hospitality | 2025 |
| Kameni Fitness Health and Well-Being Ltd | Health & social care | 2023 |
| Kamran Kabs Limited Partnership | | 2017 |
| Kamry Limited | Professional & scientific | 2019 |
| Kandy Bar Limited | Hospitality | 2020 |
| Kane Civils Ltd | Construction | 2020 |
| Kanmak Ltd | Health & social care | 2022 |
| Kanzen for Life Limited | Arts & recreation | 2018 |
| Kaombo Limited | Real estate | 2020 |
| Kara Swankie Safety Limited | Professional & scientific | 2026 |
| Karahi Zone Limited | Hospitality | 2019 |
| Karen Agnes Design Limited | Mining & quarrying | 2014 |
| Karen Clark Planning Consultancy Ltd | Professional & scientific | 2024 |
| Kargoil Trade LP | | 2017 |
| Kari Indian Food Ltd | Hospitality | 2022 |
| Karim Property Development Ltd | Real estate | 2015 |
| Karl Storz Endoscopy (UK) Limited | Manufacturing | 1994 |
| KAS Grooming Co. Limited | Other services | 2025 |
| Kasas Property Limited | Real estate | 2023 |
| Kash Cabs Ltd | Transport & logistics | 2023 |
| Kash Taxis Limited | Transport & logistics | 2017 |
| Kashlaw Property Services Limited | Real estate | 2022 |
| Kaskada Systems LP | | 2017 |
| Kasnaq Group Limited | Households | 2024 |
| Kass Property Company Ltd | Real estate | 2023 |
| Kasula Ltd | Administrative & support | 2018 |
| Katheja Ltd | Hospitality | 2025 |
| Kawi Soler Limited | Financial services | 2025 |
| Kaydo Marketing LP | | 2017 |
| Kaymia Resources LP | | 2017 |
| KB Hotel Ltd | Hospitality | 2024 |
| KBM Joinery Ltd | Construction | 2018 |
| Kbowlscoaching Limited | Health & social care | 2026 |
| KC Locksmith Services Ltd | Other services | 2016 |
| KC Renewables Ltd | Construction | 2022 |
| KCM Events Ltd | Hospitality | 2020 |
| Kcol Ltd | Manufacturing | 2018 |
| KD (Fife) Ltd | Administrative & support | 2024 |
| KDF Industries L.P. | | 2013 |
| KDH Electrical Ltd | Construction | 2020 |
| KDM Architects Limited | Professional & scientific | 2015 |
| KDM Solar Ltd | Wholesale & retail | 2022 |
| KDO Subsea Ltd | Professional & scientific | 2013 |
| KDQ Ltd | Professional & scientific | 2015 |
| Kdyfoody Ltd | Hospitality | 2025 |
| KE Aesthetics Ltd. | Other services | 2016 |
| KEG Holdings Limited | Administrative & support | 2026 |
| Kegs Properties Ltd | Real estate | 2020 |
| Keillers Piercing Studio Limited | Wholesale & retail | 2014 |
| Keillor Contracts Ltd | Construction | 2023 |
| Keiran Mckenna Deliveries Ltd | Transport & logistics | 2026 |
| Kelgo Properties Ltd | Real estate | 2024 |
| Keli Tots Wraparound Care Ltd | Health & social care | 2024 |
| Kell-Tech Limited | Information & communication | 2022 |
| Kellan Builders Limited | Construction | 2018 |
| Kelly-Howard Properties Limited | Construction | 2021 |
| Kellysapworld Limited | Information & communication | 2014 |
| Kelnet Limited | Professional & scientific | 2012 |
| Kelpie Immunology Ltd | Professional & scientific | 2025 |
| Kelton Holdings Ltd | Real estate | 2022 |
| Kemnay Roofing & Exterior Painting Ltd | Construction | 2026 |
| Kempton & Partners LP | | 2016 |
| Kempton Health & Wellness Ltd | Health & social care | 2023 |
| Kennedy Roofing Services Ltd | Construction | 2008 |
| Kenneth Property Ltd | Real estate | 2019 |
| Kentmile Invest L.P. | | 2015 |
| Kenwall Inter L.P. | | 2015 |
| Kenzo Shopfitting Limited | Construction | 2009 |
| KEO Property Ltd | Real estate | 2021 |
| Kerb Side Autos Ltd | Wholesale & retail | 2024 |
| Kerojo Developments Limited | Construction | 2011 |
| Kerr Automotive Limited | Manufacturing | 2015 |
| Kerr Care Ltd | Wholesale & retail | 2014 |
| Kerrie Foods Ltd | Hospitality | 2025 |
| Kerrot International LP | | 2017 |
| Kerrs Aberdeen Limited | Wholesale & retail | 2020 |
| Kerrs Hart Street Ltd | Real estate | 2026 |
| Kesr Building Services Ltd | Construction | 2023 |
| Kesr Construction Ltd | Construction | 2023 |
| Kesr Joinery Ltd | Construction | 2023 |
| Kestrel Dataworks Ltd | Information & communication | 2025 |
| Kestrel Marine Limited | | 1974 |
| Kettins Electrical Ltd | Construction | 2021 |
| Kevin Anderson Fresh Fish Ltd | Wholesale & retail | 2019 |
| Kevin Black Electrical Limited | Construction | 2018 |
| Kevin Law Joiner & Contractor Limited | Construction | 2026 |
| Kevin Porter Joinery Limited | Construction | 2026 |
| Kevin Worldwide L.P. | | 2015 |
| Key Commercial Cleaning Services Limited | Administrative & support | 2024 |
| Key Hole Dings Limited | Financial services | 1996 |
| Key Offshore Marine Limited | Professional & scientific | 1988 |
| Key Personnel Recruitment Limited | Administrative & support | 1990 |
| Key Property Management Ltd | Real estate | 2019 |
| Keyrise Ltd | Real estate | 2023 |
| Keystone Property Agency Limited | Real estate | 2024 |
| Kf.International Ltd | Wholesale & retail | 2025 |
| KFX Networks L.P. | | 2015 |
| KG Couriers (Dundee) Ltd | Transport & logistics | 2016 |