| Katie Reynolds Design Ltd | Professional & scientific | 2019 |
| Kato.Mf Consulting Limited | Professional & scientific | 2024 |
| Katoni Engineering Ltd | Administrative & support | 2010 |
| Katrina Carr Blackbelt Academy Ltd | Education | 2024 |
| Kaul Consulting Engineers Limited | Professional & scientific | 2019 |
| Kavaya Ltd | Manufacturing | 2024 |
| Kawasaki Subsea (UK) Limited | Professional & scientific | 2019 |
| Kawrin Aberdeen Ltd | Other services | 2026 |
| Kay-Clean Ltd | Administrative & support | 2025 |
| Kays Logistics Ltd | Transport & logistics | 2018 |
| KAZ Hair Limited | Other services | 2019 |
| KAZ85 Ltd | Other services | 2022 |
| Kazaki Ltd | Wholesale & retail | 2024 |
| KB Courier Services Ltd | Transport & logistics | 2022 |
| KB Footcare Ltd | Health & social care | 2024 |
| KB PUB Aberdeen Limited | Hospitality | 2017 |
| KB Supply Chain Solutions Ltd | Professional & scientific | 2026 |
| KB Umbilical Services Ltd | Mining & quarrying | 2023 |
| Kb&Jg Construction Ltd | Construction | 2019 |
| KBC Design Ltd | Professional & scientific | 2013 |
| KBI Properties Ltd | Hospitality | 2025 |
| KBS Holdings Scotland Ltd | Financial services | 2025 |
| KC Analytics Ltd | Information & communication | 2023 |
| KC Project Management & Consultancy Services Limited | Professional & scientific | 2016 |
| KCH Consultancy Ltd | Professional & scientific | 2023 |
| KCI Contract Services Ltd | Administrative & support | 2024 |
| KCI Energy Services Limited | Manufacturing | 2010 |
| KCN Kidd Ltd | Real estate | 2024 |
| Kcnholdings Ltd | Real estate | 2024 |
| Kcpl Holding Limited | Financial services | 2013 |
| KCR Lettings Ltd | Real estate | 2024 |
| KD Architect Ltd | Professional & scientific | 2024 |
| KDM Marine UK Limited | Other services | 2019 |
| KDM Subsea Solutions Ltd | Mining & quarrying | 2025 |
| KDP (Aberdeen) Limited | Wholesale & retail | 2001 |
| KDP Holdings Ltd | Financial services | 2018 |
| Kdtc Property Management Services Ltd | Real estate | 2026 |
| KE Headland Ltd | Hospitality | 2025 |
| Kearvaig Consulting Ltd | Professional & scientific | 2022 |
| Kebabking (Aberdeen) Limited | Administrative & support | 2003 |
| Keilloh Oilfield Services Limited | Mining & quarrying | 2026 |
| Keir Developments Limited | Construction | 2020 |
| Keirfield Developments Ltd | Hospitality | 2022 |
| Keith Hall Gardens Limited | Real estate | 1986 |
| Keithhall Nurseries Limited | Administrative & support | 2005 |
| Kelgas (UK) Limited | Construction | 2013 |
| Kelikume Fashion and Styling Limited | Wholesale & retail | 2024 |
| Kellda Ltd | Professional & scientific | 2025 |
| Kellogg Brown & Root Trustees Limited | Extraterritorial | 1987 |
| Kelly Kooling Limited | Construction | 2017 |
| Kelly of Cults Limited | Real estate | 1959 |
| Keltic Accounting Limited | Professional & scientific | 2009 |
| Kelton Engineering Limited | Administrative & support | 1991 |
| Kemilux Supplies Limited | Professional & scientific | 2013 |
| Kempstone Hill Wind Energy Limited | Energy | 2010 |
| Kemtech Products Limited | Professional & scientific | 1987 |
| KEN Draper Ltd | Wholesale & retail | 2024 |
| KEN Holdings Ltd | Real estate | 2023 |
| KEN Mathieson Architectural Design Limited | Professional & scientific | 2002 |
| Kencel Limited | Information & communication | 2013 |
| Kenem Consulting Limited | Professional & scientific | 2017 |
| Kenfield Holdings Limited | Financial services | 2025 |
| Kenfield Investments Limited | Financial services | 2025 |
| Kenfield Properties LLP | | 2008 |
| Keng Offshore Engineering Limited | Mining & quarrying | 2018 |
| Kennedy Productions Company Ltd. | Arts & recreation | 2007 |
| Kennedy Transport Limited | Transport & logistics | 2001 |
| Kenneth Macleod Limited | Real estate | 1997 |
| Kenneth Mair Slaters Limited | Construction | 2016 |
| Kenneth Weir Art Ltd | Arts & recreation | 2026 |
| Kenneth Weir Limited | Real estate | 2023 |
| Kenny Resources Limited | Professional & scientific | 2023 |
| Kensington West LP | | 2013 |
| Kenway Tyres Limited | Wholesale & retail | 1986 |
| Kenway Tyres Trustees Limited | Professional & scientific | 2011 |
| Kenzfigee Limited | Manufacturing | 2019 |
| Kepak Group Limited | Manufacturing | 2013 |
| Ker-An Properties Limited | Real estate | 2016 |
| Kerloch Energy Ltd | Professional & scientific | 2023 |
| Kerloch Engineering Limited | Manufacturing | 2014 |
| Kerloch OIL Tools Ltd | Professional & scientific | 2011 |
| Kern Properties Limited | Real estate | 2015 |
| Kernys Access Ltd | Construction | 2022 |
| Kero Properties Ltd | Construction | 2021 |
| Keromax Inter LP | | 2012 |
| Kerrs Private Water Solutions Ltd | Water & waste | 2026 |
| Kessock Holdings (FR) Limited | Financial services | 2023 |
| Kessock Service Station Limited | Wholesale & retail | 1997 |
| Kestrel Engineering Services Ltd. | Manufacturing | 2006 |
| Kevin Beattie Plumbing & Heating Services Limited | Construction | 2001 |
| Kevin Smith Services Ltd | Professional & scientific | 2022 |
| Kevsam Consultancy Services Limited | Real estate | 2004 |
| KEW Logistics Ltd | Transport & logistics | 2016 |
| Key HGV Training Ltd | Education | 2026 |
| Keyko Investments Ltd | Real estate | 2021 |
| KFW Consultancy Ltd | Professional & scientific | 2017 |
| KG Accountancy & Bookkeeping Limited | Professional & scientific | 2014 |
| KG Burns Limited | Administrative & support | 2018 |
| KG Communications (Scotland) Ltd | Professional & scientific | 2025 |
| KG Electrical Design Ltd | Mining & quarrying | 2011 |