| KJB Stars Ltd | Arts & recreation | 2026 |
| KJD Home Ltd | Information & communication | 2025 |
| KK Distributors Limited | Wholesale & retail | 2025 |
| Kk&T Properties Ltd | Real estate | 2024 |
| Kkar Developments Ltd | Construction | 2020 |
| KL MBA Property Management Services Limited | Real estate | 2021 |
| Klcay Consulting Limited | Professional & scientific | 2019 |
| KLH Music Ltd | Arts & recreation | 2026 |
| KLM Abode Ltd | Real estate | 2025 |
| KLM Industries Limited | Construction | 2022 |
| KMB Developments Ltd | Wholesale & retail | 2025 |
| KMC PUB Co Ltd | Hospitality | 2023 |
| KMC Trading North West Limited | Manufacturing | 2012 |
| Kmdd Group Ltd | Administrative & support | 2024 |
| KMJ Consulting Limited | Information & communication | 2011 |
| KMK Properties Limited | Financial services | 2019 |
| KMN Healthcare Ltd | Health & social care | 2023 |
| KMN Property Management Ltd | Real estate | 2023 |
| KMS Roofing Services Ltd | Construction | 2022 |
| KMY Properties Ltd | Households | 2020 |
| KN Hotel Ltd | Hospitality | 2023 |
| Kneel Easy Ltd | Other services | 2021 |
| KNG Electrical Limited | Construction | 2017 |
| Knibbs Property Limited | Real estate | 2014 |
| Knight Bridge Assist Limited | Financial services | 2017 |
| Knight-Bridge Group Limited | Financial services | 2017 |
| Knightrow Ltd | Wholesale & retail | 2017 |
| Knights Crew Ltd | Administrative & support | 2022 |
| Knott END Cafe Ltd | Hospitality | 2017 |
| Knoweltee Ltd | Wholesale & retail | 2024 |
| Knox Robinson Property Management Services Limited | Households | 2024 |
| KNW Actuarial Services Ltd | Professional & scientific | 2017 |
| KO Plant Engineers Ltd | Manufacturing | 2026 |
| Koben Property Ltd | Real estate | 2024 |
| Kognya Digital Crafting Limited | Information & communication | 2020 |
| KOI and Ponds Limited | Construction | 2022 |
| Koji Property Ltd | Real estate | 2021 |
| Kolarik Ltd | Wholesale & retail | 2023 |
| Kome Shokudo Limited | Hospitality | 2024 |
| Kompetent Care Ltd | Health & social care | 2015 |
| Konark Group Ltd | Hospitality | 2018 |
| Koral Green Ltd | Professional & scientific | 2019 |
| Kovable Ltd | Information & communication | 2026 |
| KP Logistics (NW) Limited | Transport & logistics | 2015 |
| KPI Tech Ltd | Extraterritorial | 2025 |
| KPR Education Ltd | Education | 2023 |
| Kringc Limited | Health & social care | 2022 |
| Krish Motor Services Ltd | Wholesale & retail | 2015 |
| Kristine Photography Limited | Professional & scientific | 2025 |
| KRO Gentlemen Grooming Limited | Other services | 2025 |
| Krtp Ltd | Transport & logistics | 2020 |
| KS Motors & FT Garages Limited | Wholesale & retail | 2026 |
| KS Welding and Fabrication Ltd | Manufacturing | 2016 |
| KSJ Properties Southport Limited | Real estate | 2009 |
| KTC UK Holdings Ltd | Financial services | 2026 |
| KTJ Consultancy Ltd | Professional & scientific | 2016 |
| KTJ Properties Limited | Real estate | 2019 |
| Kuka Home Ltd | Wholesale & retail | 2014 |
| Kula Transport (Blackpool) Limited | Transport & logistics | 2016 |
| Kumara (Blackpool) Management Company Limited | Administrative & support | 2004 |
| Kumonosu Ltd | Information & communication | 2020 |
| Kumuda Trading Ltd | Wholesale & retail | 2025 |
| Kurdish Barber (Blackpool) Limited | Other services | 2024 |
| Kurds Barber Ltd | Other services | 2023 |
| Kurdstan Restaurant Ltd | Hospitality | 2026 |
| Kuyruk Yachting Ltd | Extraterritorial | 2024 |
| Kwcc 1830 Ltd | Hospitality | 2016 |
| Kwiker Fit UK Ltd | Wholesale & retail | 2025 |
| Kwonk Investments Limited | Professional & scientific | 2023 |
| Kyle Harris Joinery Ltd | Manufacturing | 2022 |
| Kylo’S BPL Ltd | Hospitality | 2023 |
| Kyote Digital Print & Signage Ltd | Wholesale & retail | 2010 |
| Kzloty Limited | Information & communication | 2016 |
| L & a Hospitality Ltd | Hospitality | 2023 |
| L & a Rentals Ltd | Real estate | 2024 |
| L & G Housing Ltd | Real estate | 2026 |
| L & J Business Limited | Financial services | 2017 |
| L & J Jewellers Limited | Wholesale & retail | 2011 |
| L & R Builders Ltd | Construction | 2019 |
| L & R Property Services Limited | Administrative & support | 1997 |
| L Herbert Properties Limited | Real estate | 2021 |
| L J Atkinson Ltd | Construction | 2025 |
| L Noble Piping Services Ltd | Construction | 2022 |
| L S Trading NW Ltd | Wholesale & retail | 2025 |
| L Stemburski TM Ltd | Construction | 2024 |
| L Wilson Digital & Security Limited | Construction | 2018 |
| L&C Inns Limited | Hospitality | 2026 |
| L&L New Generation Ltd | Hospitality | 2018 |
| L&L NG Properties Ltd | Real estate | 2025 |
| L&P Utilities Ltd | Financial services | 2025 |
| L&Sg Ltd | Hospitality | 2025 |
| L&T Nails Ltd | Other services | 2025 |
| L. Woodhouse Limited | Health & social care | 1965 |
| L.C.R. Systems SPV Limited | Financial services | 2024 |
| L.M. Scaffolding (NW) Ltd | Construction | 2025 |
| L.M. Scaffolding Holdings Ltd | Financial services | 2025 |
| LA Calavera Limited | Education | 2017 |
| LA Casa MNH Limited | Hospitality | 2017 |
| LA Fontana Restaurant Limited | Hospitality | 1990 |
| LA Hospitality Limited | Hospitality | 2025 |