| K a Thompson (Accounting) Limited | Professional & scientific | 2002 |
| K and T Skip Services Ltd | Water & waste | 2025 |
| K D Kataria Ltd | Wholesale & retail | 2002 |
| K D School Ltd | Education | 2025 |
| K E R Investments Limited | Real estate | 2014 |
| K E W (Midlands) Limited | Administrative & support | 2009 |
| K Glass (Wton) Ltd | Manufacturing | 2017 |
| K Harrison Developments Limited | Construction | 2016 |
| K Investments Limited | Financial services | 2004 |
| K Johnson Property Management Ltd | Real estate | 2023 |
| K M Gills Limited | Households | 2023 |
| K Mahi Stores Ltd | Wholesale & retail | 2023 |
| K Mini Market Limited | Wholesale & retail | 2026 |
| K Naseem Medical Limited | Education | 2021 |
| K O Machines Limited | Wholesale & retail | 2007 |
| K Property Management Ltd | Real estate | 2015 |
| K R Barbers Limited | Other services | 2018 |
| K R Convenience Store Ltd | Wholesale & retail | 2018 |
| K R Darrall & Co Limited | Professional & scientific | 2010 |
| K R Forwarding Ltd | Transport & logistics | 2025 |
| K S Detailing 1 Ltd | Wholesale & retail | 2024 |
| K S Engineering (Midlands) Limited | Professional & scientific | 2011 |
| K Shaw Services Ltd | Construction | 2025 |
| K Singh Haryana Group Ltd | Construction | 2025 |
| K Teas Cakes Limited | Hospitality | 2017 |
| K Transport Services (Midlands) Limited | Transport & logistics | 1977 |
| K&A Lifestyle Ltd | Arts & recreation | 2024 |
| K&D UK Investments LLP | | 2025 |
| K&J Capital Ltd | Professional & scientific | 2021 |
| K&K Cakes Ltd | Wholesale & retail | 2019 |
| K&M Mobile Mechanic Limited | Wholesale & retail | 2025 |
| K&M.L. Catering Limited | Hospitality | 2016 |
| K&N Transport Ltd | Construction | 2021 |
| K&R Realty Ltd | Real estate | 2026 |
| K&S Builders Midlands Ltd | Construction | 2025 |
| K&S Property Ventures Ltd | Real estate | 2025 |
| K&Vloi Ltd | Households | 2026 |
| K-Numerique Ltd | Information & communication | 2020 |
| K-On Tyres Services Ltd | Wholesale & retail | 2022 |
| K. RAM & Sons Ltd | Wholesale & retail | 2021 |
| K. Reaney Limited | Construction | 2002 |
| K.A.S Properties Midlands Ltd | Real estate | 2024 |
| K.A.W Academy of Boxing & Kickboxing Ltd | Arts & recreation | 2025 |
| K.C. Glass Limited | Wholesale & retail | 1982 |
| K.E Stocks Sourcing & Services Ltd | Professional & scientific | 2022 |
| K.F. Gillett Limited | Construction | 2002 |
| K.K.C. Groundworks Limited | Construction | 2008 |
| K.R.S Carrier's Ltd | Transport & logistics | 2020 |
| K.V. Rattu Holdings Ltd | Real estate | 2019 |
| K/A Logistics Ltd | Transport & logistics | 2026 |
| K1 Mancave Barbers Ltd | Other services | 2024 |
| K1 Top Turkish Barber Ltd | Other services | 2023 |
| K2 Rope Access & Rigging Ltd | Construction | 2023 |
| K4 Capital Holdings Ltd | Financial services | 2025 |
| K4C Trades Limited | Wholesale & retail | 2025 |
| K8 Holistics Ltd | Health & social care | 2025 |
| K8 Properties Ltd | Real estate | 2023 |
| K9 Kitchen RAW Ltd | Wholesale & retail | 2022 |
| K9 Kitchen Services Ltd | Administrative & support | 2022 |
| KA Autorepairs Ltd | Wholesale & retail | 2026 |
| Kaal Bhairav Ltd | Construction | 2025 |
| Kabah Travels Limited | Wholesale & retail | 2024 |
| Kabanyoros Ltd | Hospitality | 2024 |
| Kabinco Holdings Limited | Financial services | 2025 |
| Kabinco Ltd | Construction | 2022 |
| Kacey Properties Ltd | Real estate | 2016 |
| KAD Design and Build (Midlands) Ltd | Professional & scientific | 2026 |
| KAD Designs (Midlands) Ltd | Professional & scientific | 2016 |
| Kadeg Ltd | Wholesale & retail | 2022 |
| Kafscart Ltd | Wholesale & retail | 2026 |
| Kagzi Traders Ltd | Wholesale & retail | 2026 |
| KAI Luxury Travels Limited | Transport & logistics | 2023 |
| KAI Shotokan Karate Ltd | Arts & recreation | 2018 |
| Kaido Group Ltd | Information & communication | 2015 |
| Kailey Real Estate Limited | Real estate | 2023 |
| Kailo Property Group Ltd | Hospitality | 2025 |
| Kainat Trading Corporation Ltd | Wholesale & retail | 2026 |
| Kainth Accountants Ltd | Professional & scientific | 2013 |
| Kairos Connected Ltd | Education | 2026 |
| Kaizen Group Holdings Ltd | Information & communication | 2018 |
| Kajohn Store Ltd | Wholesale & retail | 2025 |
| Kajon Delivery Service Limited | Transport & logistics | 2017 |
| Kakkar Trading Ltd | Wholesale & retail | 2025 |
| Kalagi Services Ltd | Professional & scientific | 2012 |
| Kalair Investments Ltd | Construction | 2019 |
| Kalair Ltd | Real estate | 2019 |
| Kalgidhar Transport Ltd | Transport & logistics | 2025 |
| Kalhertransport Limited | Manufacturing | 2018 |
| Kalibre Clothing Ltd | Wholesale & retail | 2023 |
| Kalima Bargains Ltd | Wholesale & retail | 2023 |
| Kalirai & Co Limited | Professional & scientific | 2013 |
| Kalirai Properties Limited | Real estate | 2018 |
| Kallus Boss Ltd | Wholesale & retail | 2026 |
| Kalmzee Technologies Ltd | Information & communication | 2026 |
| Kalpvriksha Limited | Real estate | 2010 |
| Kalsan UK Limited | Wholesale & retail | 2003 |
| Kalsi Building Designs Ltd | Professional & scientific | 2022 |
| Kalsi Building Services Ltd | Construction | 2023 |
| Kalsi Letting and Developments Limited | Real estate | 2023 |
| Kalsi Structural Designs Ltd | Professional & scientific | 2022 |