| Kingsdown Court Management Association Limited | Households | 1996 |
| Kinpro Ltd | Professional & scientific | 2024 |
| Kiran Patel Ltd | Health & social care | 2017 |
| Kirwin Solutions Limited | Information & communication | 2021 |
| Kisemba Properties Ltd | Real estate | 2025 |
| Kisemba Property Management LLP | | 2019 |
| Kittu Solutions Ltd | Information & communication | 2014 |
| Kivvy Limited | Hospitality | 2017 |
| KJD Offshore Consulting Limited | Professional & scientific | 2024 |
| KJK Operations Limited | Professional & scientific | 2025 |
| KK Consultants Ltd | Professional & scientific | 2013 |
| KK Food Store Ltd | Wholesale & retail | 2016 |
| Kkpremierholdings Ltd | Households | 2025 |
| Kleio String Quartet LLP | | 2024 |
| Klemi.Co LLP | | 2016 |
| Klick Electrical Limited | Construction | 2016 |
| Kliek Limited | Professional & scientific | 2017 |
| KM House Construction Ltd. | Construction | 2017 |
| KMB Electrical Contractors Limited | Construction | 2014 |
| KMG Associates Ltd | Information & communication | 2004 |
| Knala Ltd | Wholesale & retail | 2024 |
| Knights Clinic Ltd | Other services | 2010 |
| Know Your Information Ltd | Information & communication | 2024 |
| Kobika Dance Limited | Extraterritorial | 2010 |
| Kocoglu Limited | Hospitality | 2022 |
| Kofy Clearance and Waste Management Limited | Water & waste | 2026 |
| Koksal Property Ltd | Real estate | 2019 |
| Koksoy Ltd | Hospitality | 2025 |
| Kooky Rebel Ltd | Extraterritorial | 2024 |
| Koromoro Limited | Hospitality | 2025 |
| Koulla Lucia Interiors Ltd | Manufacturing | 2020 |
| KP Dent Solutions Limited | Health & social care | 2022 |
| Kpda Ltd | Manufacturing | 2021 |
| KPJ Assets Ltd | Real estate | 2024 |
| KR Rousell Ltd | Construction | 2019 |
| Kreamy Delights Cafe Ltd | Wholesale & retail | 2026 |
| Kreamy Delights Ltd | Wholesale & retail | 2024 |
| Kreamylicious Ltd | Wholesale & retail | 2025 |
| Kris SEN Solicitors Limited | Professional & scientific | 2016 |
| Krome Klothing Ltd | Manufacturing | 2026 |
| Krushc Ltd | Administrative & support | 2024 |
| Krystal Developments Limited | Other services | 2000 |
| KSB Housing Developments Ltd | Construction | 2025 |
| KSP Enterprise Ltd | Administrative & support | 2015 |
| Ksparks Ltd | Manufacturing | 2019 |
| Ktkd Ltd | Hospitality | 2022 |
| KTM Highways Ltd | Construction | 2021 |
| Kuazzyy Worldyy Limited | Professional & scientific | 2025 |
| Kucak Catering Limited | Hospitality | 2020 |
| Kudos Tuition Ltd. | Education | 2016 |
| Kugadas Surveying Limited | Professional & scientific | 2014 |
| Kultur Limited | Hospitality | 2018 |
| Kumar Consultant Ltd | Construction | 2008 |
| Kurt Building Services Ltd | Construction | 2020 |
| Kurt Construction Energy Ltd | Energy | 2025 |
| Kurt Real Estate Development Ltd | Real estate | 2025 |
| Kuthu Step Ltd | Education | 2024 |
| Kuzey Kibris Universitesi Limited | Extraterritorial | 2016 |
| KVK Solutions Ltd | Professional & scientific | 2011 |
| Kwambas Ltd | Health & social care | 2019 |
| KYC Consulting Limited | Real estate | 2006 |
| Kúbome Limited | Wholesale & retail | 2025 |
| L & R Convenience Stores Ltd | Wholesale & retail | 2013 |
| L a K Design Consultants Limited | Other services | 2011 |
| L Ellis Heating Limited | Construction | 2016 |
| L Mart Ltd | Transport & logistics | 2013 |
| L&B COX Investments Limited | Real estate | 2022 |
| L&J Firma Stay Ltd | Real estate | 2025 |
| L2 Interior Joinery Ltd | Construction | 2023 |
| LA Axiom Limited | Real estate | 2021 |
| LA Belle Crêpe Ltd | Wholesale & retail | 2021 |
| LA Capannina (Brighton) Limited | Hospitality | 2001 |
| LA Maison App Ltd | Wholesale & retail | 2023 |
| LA Passione Seli Ltd | Hospitality | 2011 |
| LA Tanks Limited | Construction | 2024 |
| Laace Lettings Limited | Real estate | 2024 |
| Laal Brothers Ltd | Information & communication | 2019 |
| Laconlodge Limited | Households | 1990 |
| Ladels Contact Centre Limited | Education | 2026 |
| Ladels Estates Limited | Real estate | 2025 |
| Lady to Lady Community Limited | Other services | 2025 |
| LAI YU Limited | Wholesale & retail | 2014 |
| Laidley and Miller Properties Ltd | Real estate | 2024 |
| Lake Amari Group Ltd | Real estate | 2022 |
| Lala Construction Limited | Real estate | 2025 |
| Laley Consultancy Ltd | Professional & scientific | 2021 |
| Landez Limited | Other services | 2011 |
| Landlord SOS Ltd | Construction | 2018 |
| Landsdown Tutors Limited | Extraterritorial | 2006 |
| Lannister Lettings Ltd | Households | 2023 |
| Lansdowne Marketing and Creative Services Ltd. | Professional & scientific | 2006 |
| Larah Records Ltd | Wholesale & retail | 2023 |
| Larizzle Ltd | Information & communication | 2024 |
| Last Throw Ltd | Professional & scientific | 2011 |
| Lata Technologies Limited | Information & communication | 2015 |
| Latitude 33 Ltd | Information & communication | 2009 |
| Laura Rose Ltd | Administrative & support | 2021 |
| Laurel Tree Developments Limited | Real estate | 2015 |
| Lawns Investments Limited | Real estate | 2008 |
| Lawyers' Music | Arts & recreation | 1985 |