| Kdkinotec LLP | | 2019 |
| Kduah Ltd | Transport & logistics | 2026 |
| Keane Readers Limited | Education | 2020 |
| KEC Investments Ltd | Financial services | 2024 |
| Keen Construction Ltd | Construction | 2021 |
| Keith Graham Services Limited | Professional & scientific | 2019 |
| Kejeh Solutions Ltd | Transport & logistics | 2025 |
| Kent MOT & Repairs Ltd | Wholesale & retail | 2025 |
| Kenu Media Ltd | Wholesale & retail | 2007 |
| Kerk Properties Limited | Real estate | 2020 |
| Kertoy Limited | Real estate | 1980 |
| Kespar Technology Limited | Extraterritorial | 1999 |
| Kevin Scott Consultancy Limited | Extraterritorial | 2018 |
| Key Driving Solutions Ltd | Extraterritorial | 2022 |
| Keywise Property Ltd | Real estate | 2026 |
| Khan Group UK Ltd | Wholesale & retail | 2016 |
| KHS Property Developers Ltd | Construction | 2022 |
| Kids Healthy Mind CIC | Arts & recreation | 2024 |
| Kingsfield Court Ltd | Construction | 2004 |
| Kingstons Freehold Management Limited | Households | 2006 |
| Kinsgolf Ltd | Wholesale & retail | 2023 |
| Kirat RAI Yayokkha Aldershot Primary Committee Limited | Other services | 2025 |
| Kirsty Tither Ltd. | Information & communication | 2019 |
| Kite Express Ltd | Transport & logistics | 2025 |
| Kiwi Consultancy UK Ltd | Professional & scientific | 2012 |
| KLM Housing Consultancy Ltd | Real estate | 2026 |
| Kmvt Transport Ltd | Transport & logistics | 2017 |
| Knyazeva Limited | Transport & logistics | 2022 |
| Koep Investments PVT Limited | Health & social care | 2021 |
| Kofam Ltd | Wholesale & retail | 2022 |
| Kofini Ltd | Information & communication | 2025 |
| Kogita’S Secret Ltd | Wholesale & retail | 2021 |
| KOI Financial Limited | Professional & scientific | 2023 |
| Kojosan Limited | Transport & logistics | 2019 |
| Kokobirmingham Ltd | Hospitality | 2026 |
| Kokocanterbury Limited | Hospitality | 2026 |
| Konme Properties Ltd | Real estate | 2025 |
| Korean Kimchi Ltd | Hospitality | 2018 |
| KPG Data Solutions Ltd | Information & communication | 2015 |
| Krisa Nextmind Ltd | Information & communication | 2026 |
| Kriusha Ltd | Wholesale & retail | 2026 |
| Kroll Interiors Ltd | Construction | 2018 |
| KS Education Services Ltd | Education | 2025 |
| KSB Supplies Ltd | Wholesale & retail | 2022 |
| Kudos Technology Systems Ltd | Manufacturing | 2020 |
| Kuhu Supplies Ltd | Wholesale & retail | 2022 |
| Kuick Klean Limited | Administrative & support | 2025 |
| Kukuna Limited | Hospitality | 2023 |
| Kumud Entertainment Limited | Information & communication | 2014 |
| Kurgan&Daughters Limited | Hospitality | 2024 |
| Kyvos Ltd | Information & communication | 2013 |
| L & T Associates of Tavistock Limited | Hospitality | 2014 |
| L James Media Ltd. | Information & communication | 2017 |
| L Morten and Sons Ltd | Construction | 2022 |
| L P (RMC Accounts) Limited | Professional & scientific | 2012 |
| L S G Electrical Services Limited | Construction | 1986 |
| L.J. Hockley and Company Limited | Information & communication | 1991 |
| LA MUD Promotions Limited | Hospitality | 2024 |
| Laafa Ltd | Hospitality | 2022 |
| Labar's Limited | Wholesale & retail | 2025 |
| Lakeland Commercial Window Systems Limited | Construction | 1999 |
| Lakhi Limited | Real estate | 2024 |
| Laligurash Aldershot Limited | Hospitality | 2015 |
| Laltin Prints Limited | Manufacturing | 2025 |
| Lama Estates Ltd | Real estate | 2025 |
| Lama Jewellers Limited | Manufacturing | 2022 |
| Lambert 3D Ltd | Professional & scientific | 2026 |
| Langelfield Property Management Limited | Real estate | 1998 |
| Language Gateway Limited | Extraterritorial | 2015 |
| Lapu & Co Limited | Hospitality | 2025 |
| Lawbridge Legal Ltd | Professional & scientific | 2025 |
| Learn Develop Change Ltd. | Information & communication | 2004 |
| Leighton Buzzard Sushi Ltd | Hospitality | 2024 |
| Levales Solicitors LLP | | 2009 |
| Levanta Consulting Ltd | Professional & scientific | 2022 |
| Level Construction Limited | Construction | 2023 |
| Level Plans Limited | Professional & scientific | 2025 |
| Levelpoint Landscapes Limited | Administrative & support | 2023 |
| Lewis Home Letting Ltd | Real estate | 2025 |
| Lexiqa Limited | Information & communication | 2016 |
| Lexman Limited | Transport & logistics | 2006 |
| Lfxm Ltd | Manufacturing | 2019 |
| LG Entertainment Ltd | Arts & recreation | 2025 |
| LG Lions Limited | Wholesale & retail | 2023 |
| Lgcg Limited | Real estate | 2020 |
| Light Angels Limited | Construction | 2010 |
| Lighthouse Delivery Services Ltd | Transport & logistics | 2019 |
| Lighthouse Entertainment Ltd | Hospitality | 2026 |
| Lila & Daughters Property Ltd | Real estate | 2025 |
| Liminal Space Training Ltd | Education | 2023 |
| Limpeza Cleaning Ltd | Administrative & support | 2025 |
| Lincoln Property Solutions Limited | Real estate | 2011 |
| Lingbrea Limited | Real estate | 2024 |
| Lingserve Limited | Professional & scientific | 2003 |
| LINKED365 Consulting Ltd | Information & communication | 2025 |
| Linkers Ltd | Wholesale & retail | 2021 |
| Lintax Consulting Ltd | Professional & scientific | 2026 |
| Linx Property Solutions Limited | Real estate | 2015 |
| Lister GAS Services Ltd | Construction | 2014 |
| Little Brand Book Limited | Other services | 2019 |