| KAM Lighting Ltd | Information & communication | 2021 |
| Karen Gibb Ltd | Health & social care | 2022 |
| Katie's Clean Futures CIC | Administrative & support | 2025 |
| Katie's Custard Limited | Hospitality | 2024 |
| Katie’S Professional House Cleaning Limited | Administrative & support | 2022 |
| Katy Hair & Beauty Limited | Other services | 2019 |
| Kavcastle Ltd | Real estate | 2024 |
| Kays Dine and Takeaway Ltd | Hospitality | 2025 |
| KB Investments UK IOM Limited | Real estate | 2025 |
| KB8CONSULTING Limited | Information & communication | 2025 |
| KCF Consulting Limited | Professional & scientific | 2024 |
| KCG (Scotland) Ltd | Construction | 2025 |
| KCG Audio Ltd | Wholesale & retail | 2025 |
| KCM Electrical (Scotland) Ltd | Construction | 2013 |
| KCM Energy Limited | Manufacturing | 2007 |
| KDM Recovery Limited | Transport & logistics | 2019 |
| Kdps Ltd | Construction | 2018 |
| Kebab BOY Productions Ltd | Information & communication | 2021 |
| Kebana Fastfood Ltd | Hospitality | 2018 |
| KEE Contracts Limited | Construction | 2023 |
| KEE Logic Limited | Manufacturing | 2006 |
| Keegan Media Ltd | Professional & scientific | 2024 |
| Keen Quality Consulting Limited | Professional & scientific | 2021 |
| Keenan Motors Ltd | Wholesale & retail | 2016 |
| Keepin IT Cool Ltd | Professional & scientific | 2021 |
| Kefytee Global Services Ltd | Information & communication | 2026 |
| KEG Paisley Ltd | Hospitality | 2019 |
| Kelburne Tyres Limited | Wholesale & retail | 2023 |
| Kellock Contracts Ltd | Construction | 2023 |
| Kelso Smile Limited | Health & social care | 2023 |
| Kenmure Land Co. Limited (the) | Professional & scientific | 1986 |
| Kenneth Edward Properties Ltd | Real estate | 2019 |
| Kenneth Keegan Funeral Services Ltd | Other services | 2014 |
| Kenning Fishing Limited | Agriculture & fishing | 2007 |
| Kensington Penthouse Holdings Limited | Real estate | 2024 |
| Kent Foods Limited | Wholesale & retail | 1992 |
| Kenyart Limited | Real estate | 1991 |
| Keplo Ltd | Wholesale & retail | 2026 |
| Kerr Consultants Ltd | Professional & scientific | 2024 |
| Kessington Financial Services Ltd | Professional & scientific | 2022 |
| Kevin Guthrie Limited | Administrative & support | 2019 |
| Keyawards Ltd | Education | 2023 |
| KGS Mobile Limited | Wholesale & retail | 2025 |
| Kgst Retail Limited | Wholesale & retail | 2025 |
| Khahra Investments Ltd | Real estate | 2021 |
| Khahra Management Ltd | Extraterritorial | 2019 |
| Khahra Properties Ltd | Real estate | 2018 |
| Khai Legacy Limited | Wholesale & retail | 2025 |
| Khedive Kompany Limited | Financial services | 2015 |
| Kilbarchan Properties Ltd. | Real estate | 1999 |
| Kildonan Holdings Limited | Financial services | 2021 |
| Killa Filla Ltd | Wholesale & retail | 2026 |
| Killincraig Associates | | 1995 |
| Kilmacolm Hospitality Ltd | Other services | 2025 |
| Kilmacolm Regeneration Company Limited | Construction | 2006 |
| Kimbo's Sweet Treats Ltd | Wholesale & retail | 2024 |
| Kimmy Ltd | Other services | 2022 |
| Kimpi Ltd | Transport & logistics | 2026 |
| Kinaegis Ltd | Administrative & support | 2018 |
| Kind Heart Caring Agency Ltd | Health & social care | 2023 |
| Kindlift CIC | Wholesale & retail | 2024 |
| King Country Fencing Ltd | Other services | 2026 |
| King of Kings Ltd | Water & waste | 2020 |
| Kingpin International Ltd | Administrative & support | 2005 |
| Kintra Interiors Ltd | Wholesale & retail | 2019 |
| Kintyre Property’S Ltd | Construction | 2026 |
| Kirkwood Group Limited | Professional & scientific | 2009 |
| Kitchen Design Company (Scotland) Limited | Construction | 2001 |
| Kiwi Property (Scotland) Limited | Households | 2026 |
| Kiwus Ltd | Real estate | 2020 |
| KK Controllers Ltd | Transport & logistics | 2025 |
| KK Design Services Ltd | Professional & scientific | 2023 |
| KK Fashion Limited | Wholesale & retail | 2025 |
| KL Renewables Ltd | Manufacturing | 2019 |
| Klas Care C.I.C. | Education | 2014 |
| Klean Properties Ltd | Real estate | 2023 |
| Klenchy Photography Limited | Professional & scientific | 2025 |
| KLM Building Services Ltd | Administrative & support | 2020 |
| Klody’S Construction Ltd | Construction | 2024 |
| Kmaniatakos Limited | Health & social care | 2012 |
| Kmcomms Limited | Information & communication | 2023 |
| KMP Electrical Services Ltd | Construction | 2021 |
| KMS Groundworks Ltd | Administrative & support | 2019 |
| KN Beauty Ltd | Other services | 2018 |
| KN Kitchens (Scot) Ltd | Construction | 2022 |
| Knights Garage Ltd | Wholesale & retail | 2020 |
| Knitwear Gallery Limited (the) | Transport & logistics | 1986 |
| Kodagoda Ltd | Transport & logistics | 2025 |
| Kodiak Scotland Ltd. | Administrative & support | 2021 |
| Komal Ltd | Wholesale & retail | 2012 |
| Kona Group Limited | Construction | 2025 |
| Koncar & Associates Limited | Professional & scientific | 2015 |
| Korman Properties Ltd | Real estate | 2014 |
| Korum Skinkare Ltd | Wholesale & retail | 2025 |
| Kosmetics by KIM Ltd | Professional & scientific | 2024 |
| Kottayam Kitchen Ltd | Hospitality | 2023 |
| Kouture Hair and Beauty Ltd | Other services | 2019 |
| Kova Contracts Limited | Construction | 2023 |
| KP Kreative Ltd | Information & communication | 2022 |
| Kproc Solutions Limited | Professional & scientific | 2023 |