| K-Star Limited | Arts & recreation | 2009 |
| K-Town Express Ltd | Hospitality | 2025 |
| K. Mansion Limited | Health & social care | 2023 |
| K. Park (NO. 43B) Limited | Real estate | 1984 |
| K.Hutson Ltd | Information & communication | 2022 |
| K.K. Orthopaedics Ltd | Health & social care | 2013 |
| K.L.A.S. Joiners Ltd. | Construction | 2017 |
| K.M. Harkins Limited | Real estate | 1991 |
| K.M.T. (UK) & Co. | | 1994 |
| K.S. Leisure Engineering Ltd | Professional & scientific | 2015 |
| K100:PM Ltd | Professional & scientific | 2025 |
| K2 Lighting Consultancy Ltd | Wholesale & retail | 2026 |
| K2 Lighting Ltd | Wholesale & retail | 2025 |
| K2 Prime Ltd | Wholesale & retail | 2026 |
| K2 Properties (Scotland) Limited | Real estate | 2023 |
| K2C LP | | 2015 |
| K2D Properties Limited | Real estate | 2022 |
| K4 Taxis Ltd | Transport & logistics | 2025 |
| K9 Anytime Higford Limited | Other services | 2015 |
| K9 Pawtrol Ltd | Other services | 2021 |
| K9 Walking Services Ltd | Other services | 2024 |
| K9DINE Ltd | Manufacturing | 2024 |
| KA Apartments Limited | Real estate | 2024 |
| Ka-Ct Ltd | Professional & scientific | 2014 |
| Kaain Group Limited | Professional & scientific | 2021 |
| Kaali Enterprises Ltd. | Hospitality | 2012 |
| Kaapstorm Ltd | Information & communication | 2021 |
| Kabeer Store Limited | Wholesale & retail | 2026 |
| Kaber Helm Ltd. | Information & communication | 2017 |
| Kabolero Ventures LP | | 2016 |
| Kabs Trans Ltd | Administrative & support | 2020 |
| Kabuki Relay LP | | 2014 |
| Kabul Supermarket Ltd | Wholesale & retail | 2026 |
| Kacha Snap Limited | Hospitality | 2022 |
| Kactw Investment Ltd | Real estate | 2019 |
| Kadampa Meditation Centre Edinburgh Ltd | Other services | 2007 |
| Kaden Impex LP | | 2014 |
| Kadima Property One Ltd | Real estate | 2025 |
| Kadis L.P. | | 2011 |
| Kadmos Capital Carry GP I LLP | | 2021 |
| Kadmos Capital Carry I LP | | 2022 |
| Kado Food Ltd | Wholesale & retail | 2018 |
| Kadoh Media Ltd | Information & communication | 2026 |
| KAF137 Limited | Professional & scientific | 2012 |
| Kafadvisory Ltd | Professional & scientific | 2025 |
| Kafeneion "to Steki" Ltd | Hospitality | 2022 |
| Kaff Ltd | Wholesale & retail | 2021 |
| Kafias LP | | 2014 |
| Kafk Capital Partners Ltd | Financial services | 2025 |
| Kahlivar Property Group Ltd | Real estate | 2026 |
| Kahn Autos Ltd | Wholesale & retail | 2025 |
| KAI Engler Group LP | | 2026 |
| KAI Prof LP | | 2017 |
| Kaia Leasing Ltd | Real estate | 2025 |
| Kaim Electrical Limited | Construction | 2014 |
| Kaimend Developments Limited | Construction | 2019 |
| Kaimes Property Limited | Real estate | 2025 |
| Kaims Property Ltd | Construction | 2023 |
| Kainam (Scotland) Ltd | Real estate | 2017 |
| Kaiogb Ltd | Wholesale & retail | 2025 |
| Kair Estate Limited | Real estate | 2025 |
| Kairos 2025 Holdings Limited | Financial services | 2025 |
| Kairos Coaching & Development Ltd | Other services | 2014 |
| Kaiser Environmental Markets Holding Ltd | Financial services | 2023 |
| Kaiser International LP | | 2025 |
| Kaiser Limited Partnership | | 2007 |
| Kaitiaki Consulting Limited | Professional & scientific | 2019 |
| Kaitlyst Technologies Limited | Information & communication | 2025 |
| Kaizen Spirit Limited | Professional & scientific | 2015 |
| Kaizer Commerce LP | | 2016 |
| Kaizer Impex LP | | 2012 |
| Kakapopo Limited | Wholesale & retail | 2013 |
| Kala Manch Limited | Administrative & support | 2024 |
| Kalawati Ltd | Hospitality | 2023 |
| Kaledonia SP | | 2001 |
| Kaleidosocial CIC | Wholesale & retail | 2020 |
| Kalel Services Group Ltd | Wholesale & retail | 2026 |
| Kalencom UK Limited | Administrative & support | 2020 |
| Kalgary Estate LP | | 2012 |
| Kalific Dreams LP | | 2015 |
| Kalipso Trading LP | | 2018 |
| Kaliss Investment Trading (Scotland) Partnership SP | | 2022 |
| Kalissa Investment LP | | 2016 |
| Kaliswork Impex LP | | 2015 |
| Kalitasha Ltd | Professional & scientific | 2013 |
| Kalkedon Limited | Wholesale & retail | 2019 |
| Kall Brand Ltd | Professional & scientific | 2015 |
| Kalle Enterprises LP | | 2014 |
| Kallidin AI Limited | Information & communication | 2026 |
| Kalliope Books Limited | Information & communication | 2023 |
| Kalopsia Software Ltd | Information & communication | 2016 |
| Kalpna Hotels Limited | Hospitality | 2015 |
| Kalpna Seafood Limited | Hospitality | 2018 |
| Kalsoy Ltd | Real estate | 2021 |
| Kalstadent Limited | Health & social care | 2020 |
| Kalvn Ltd. | Construction | 2012 |
| Kalvn Property Management Ltd. | Real estate | 2019 |
| Kalypso Offshore Energy Ltd | Construction | 2024 |
| KAM Access Ltd | Construction | 2026 |
| KAM Artistry Company Limited | Wholesale & retail | 2019 |