| Kingsmount Properties Ltd | Real estate | 2023 |
| Kingston and Byrne Decorators Ltd | Construction | 2023 |
| Kingston Financial Consulting Ltd | Professional & scientific | 2017 |
| Kingston Grange Management Company Limited | Households | 2021 |
| Kingston Hotel Leeds Ltd | Hospitality | 2017 |
| Kingston Kilpatrick Ltd | Information & communication | 2017 |
| Kingston KOI Co Ltd | Wholesale & retail | 2021 |
| Kingston Properties (Leeds) Ltd | Real estate | 2018 |
| Kingsway Court (Leeds) Limited | Households | 1973 |
| Kingsway Properties Limited | Real estate | 2003 |
| Kingswear Gallery Limited | Wholesale & retail | 2015 |
| Kingswood Hart Limited | Professional & scientific | 2010 |
| Kingswood Landscaping Services Ltd | Professional & scientific | 2022 |
| Kingswood Ventilation Ltd | Construction | 2015 |
| Kingsy Prints Limited | Extraterritorial | 2025 |
| Kingys.Motor Repairs Ltd | Wholesale & retail | 2025 |
| Kingz Bar Ltd | Wholesale & retail | 2023 |
| Kingz Vape Ltd | Wholesale & retail | 2023 |
| Kinielma Healthcare Ltd | Health & social care | 2019 |
| Kinna Sohna Limited | Wholesale & retail | 2025 |
| Kinni Sohni Limited | Wholesale & retail | 2024 |
| Kinross SPV001 Ltd | Hospitality | 2022 |
| Kinsa UK Limited | Other services | 2020 |
| Kinsey Properties Ltd | Real estate | 2022 |
| Kinshasa HMO Confort Ltd | Real estate | 2022 |
| Kintsugi Coffee (MW) Ltd | Hospitality | 2023 |
| Kintsugi Coffee Limited | Hospitality | 2019 |
| Kintsugi Films Ltd. | Information & communication | 2019 |
| Kinver Consulting Limited | Administrative & support | 2014 |
| Kinyo UK Limited | Manufacturing | 1996 |
| Kinza Healthcare Limited | Professional & scientific | 2023 |
| KIO Cards Ltd | Wholesale & retail | 2017 |
| KIO Medical Limited | Manufacturing | 2025 |
| Kion Construction Limited | Real estate | 2023 |
| Kippax 668 Limited | Hospitality | 2024 |
| Kippax Athletic Junior FC Ltd | Arts & recreation | 2026 |
| Kippax Financial Services Limited | Financial services | 2013 |
| Kippax Hand Car Wash Ltd | Administrative & support | 2025 |
| Kippax MOT Centre Ltd | Wholesale & retail | 2025 |
| Kippax Salix LLP | | 2009 |
| Kippax Willow Limited | Manufacturing | 2004 |
| Kippford Investments | Financial services | 2017 |
| Kippo's Pizza Ltd | Hospitality | 2025 |
| Kipsie Properties Ltd | Real estate | 2021 |
| Kirabo Ltd | Health & social care | 2019 |
| Kirakom Ltd | Wholesale & retail | 2020 |
| Kirby Sutherland Ltd | Professional & scientific | 2022 |
| Kirbys of Meanwood Limited | Wholesale & retail | 2020 |
| Kiren's Hair Ltd | Other services | 2025 |
| Kirk Allen Limited | Other services | 2023 |
| Kirk Building Maintenance and Services Ltd | Construction | 2023 |
| Kirk Newsholme Financial Planning Limited | Financial services | 2006 |
| Kirk Newsholme Ltd | Professional & scientific | 1998 |
| Kirkbride & Co Limited | Real estate | 2021 |
| Kirkby Asset Management LLP | | 2012 |
| Kirkby Creative Design Limited | Professional & scientific | 2026 |
| Kirkgate Crafts Ltd | Wholesale & retail | 2024 |
| Kirkgate Estates Limited | Real estate | 2014 |
| Kirkgate Land Limited | Real estate | 2016 |
| Kirkgate Land Residential Limited | Real estate | 2019 |
| Kirkgate Management Company Limited | Households | 2006 |
| Kirkgate Management Otley Ltd | Households | 2026 |
| Kirkgate Suites Limited | Hospitality | 2023 |
| Kirkgate Watering Hole Limited | Hospitality | 2025 |
| Kirkstall Brewery Company Limited | Manufacturing | 2009 |
| Kirkstall Bridge Limited | Hospitality | 2002 |
| Kirkstall HOP Co Ltd | Hospitality | 2022 |
| Kirkstall Property Limited | Real estate | 2024 |
| Kirkstall Sushi Ltd | Hospitality | 2024 |
| Kirkstall Valley Props Ltd | Information & communication | 2014 |
| Kirkstall Yorkshire Ltd | Financial services | 2017 |
| Kirkstalltyres Limited | Wholesale & retail | 2024 |
| Kirkway Investments | Financial services | 2020 |
| Kirkwood Management Limited | Real estate | 2004 |
| Kirpa Estates Limited | Real estate | 2022 |
| Kirsty N Events Ltd | Administrative & support | 2023 |
| Kirsty Wilson Management Services Ltd | Professional & scientific | 2018 |
| Kirstys Kitchen Catering Limited | Manufacturing | 2014 |
| Kirty N Mistry Ltd | Professional & scientific | 2026 |
| Kirwin ADS Ltd | Manufacturing | 2015 |
| Kismet Press LLP | | 2015 |
| Kismetharrogate Ltd | Hospitality | 2024 |
| Kisrec Ltd | Information & communication | 2021 |
| Kiss Branding Limited | Arts & recreation | 2018 |
| KISU2 Ltd | Wholesale & retail | 2025 |
| KIT & Kaboodal Ltd | Wholesale & retail | 2009 |
| KIT IT OUT Limited | Wholesale & retail | 2022 |
| Kit-Kass Ltd | Wholesale & retail | 2024 |
| Kitch Kirkstall Ltd | Hospitality | 2026 |
| Kitchen & Bedroom Consultants (KBC) Limited | Transport & logistics | 1991 |
| Kitchen & Cocktail (Leeds) Ltd | Hospitality | 2026 |
| Kitchen 71 Limited | Hospitality | 2023 |
| Kitchen in a Box Limited | Hospitality | 2016 |
| KITCHEN-81 Ltd | Hospitality | 2024 |
| Kitchens by Design (Leeds) Limited | Manufacturing | 2011 |
| Kitchens ETC (Leeds) Limited | Wholesale & retail | 2012 |
| Kitching & Hodgson Limited | Wholesale & retail | 1957 |
| Kitchly Retail Limited | Wholesale & retail | 2025 |
| Kite String Data Ltd | Information & communication | 2020 |
| Kite's Reach (Chipping Campden) Management Company Limited | Households | 2020 |