| Kinetic Biosciences Ltd | Professional & scientific | 2016 |
| Kinetic Homes Limited | Real estate | 2024 |
| Kinetic IT Business Services Limited | Other services | 2011 |
| Kinetix Solutions Ltd | Professional & scientific | 2024 |
| Kinetra Physio Ltd | Health & social care | 2026 |
| King Arthur Hotels Limited | Hospitality | 1994 |
| King Brasstards Limited | Administrative & support | 2022 |
| King of the Road Transport Limited | Transport & logistics | 2026 |
| King Richards Lodges Ltd | Hospitality | 2022 |
| King Richards Mobile & Accessories Ltd | Wholesale & retail | 2020 |
| Kingdom Business Forum Ltd | Information & communication | 2023 |
| Kingdom Commercials Ltd | Real estate | 2019 |
| Kingdom Health Services Limited | Administrative & support | 2026 |
| Kingdom Inheritance Limited | Health & social care | 2014 |
| Kingdom Property Advisors Ltd | Real estate | 2025 |
| Kingdom Tiling Ltd | Construction | 2026 |
| Kingmaker Engineering Limited | Financial services | 2020 |
| Kingpin Limited | Manufacturing | 2021 |
| Kingra Infradevelopers Ltd | Construction | 2025 |
| Kings Properties (Leicester) Limited | Real estate | 2025 |
| Kings Road Consulting Limited | Professional & scientific | 2009 |
| Kings Welding Supplies Limited | Construction | 2002 |
| Kingsgate Mini Market Ltd | Wholesale & retail | 2019 |
| Kingsgate Super Saver Ltd | Wholesale & retail | 2024 |
| Kingsgate&Co Limited | Real estate | 2015 |
| Kingsley Giles Limited | Real estate | 2019 |
| Kingsley Medical (U.K) Limited | Health & social care | 2007 |
| Kingsley Napier Limited | Professional & scientific | 2018 |
| Kingsley Specials Limited | Wholesale & retail | 2018 |
| Kingsman Haulage Ltd | Transport & logistics | 2021 |
| Kingsmead Accounting Limited | Professional & scientific | 1993 |
| Kingston Drywall Limited | Construction | 1999 |
| Kingston MOT & Repair Centre Ltd | Wholesale & retail | 2019 |
| Kingsway International Ltd | Wholesale & retail | 2020 |
| Kingsway Packaging Ltd. | Wholesale & retail | 2024 |
| Kingsway Textiles Limited | Manufacturing | 1982 |
| Kingswell Ventures Ltd | Professional & scientific | 2026 |
| Kingswell Watts Properties Limited | Real estate | 2020 |
| Kingswell Watts Solicitors Limited | Professional & scientific | 2011 |
| Kingswood Business Sales Limited | Financial services | 2013 |
| Kingswood Group Ltd | Administrative & support | 2025 |
| Kingwell Acquisitions Limited | Wholesale & retail | 2025 |
| Kingz Autos Ltd | Wholesale & retail | 2021 |
| Kingz Kustomz Ltd | Manufacturing | 2021 |
| Kinkilk Limited | Manufacturing | 1976 |
| Kinniya Limited | Hospitality | 2020 |
| Kino Bino Limited | Professional & scientific | 2018 |
| Kinoulton Healthcare Ltd | Health & social care | 2025 |
| Kinsley Practice Ltd | Health & social care | 2016 |
| Kinver Cosely Ltd | Wholesale & retail | 2025 |
| Kiore Ltd | Wholesale & retail | 2024 |
| KIR CON Limited | Manufacturing | 2024 |
| Kiran Auto Limited | Manufacturing | 2008 |
| Kiran Degun Ltd | Health & social care | 2017 |
| Kiran Ltd | Wholesale & retail | 2024 |
| Kiran Motors Cars Ltd | Wholesale & retail | 2023 |
| Kirankooks Ltd | Hospitality | 2023 |
| Kirans Koaching Ltd | Education | 2023 |
| Kirav Ltd | Health & social care | 2020 |
| Kirby Care Ltd | Health & social care | 2011 |
| Kirby Cars Limited | Transport & logistics | 2017 |
| Kirby Construction Services Limited | Professional & scientific | 2023 |
| Kirby Electric@L Services Ltd | Construction | 2014 |
| Kirby Electrical Services Limited | Construction | 2015 |
| Kirby Grange Estates Ltd | Financial services | 2023 |
| Kirby HR Consultancy Ltd | Professional & scientific | 2018 |
| Kirby Landscapes & Construction Ltd | Construction | 2022 |
| Kirby Landscapes Ltd | Construction | 2025 |
| Kirby Management Services Ltd | Professional & scientific | 2024 |
| Kirby Muxloe Conservatories Ltd | Construction | 2025 |
| Kirby Muxloe Golf Club Limited(The) | Arts & recreation | 1926 |
| Kirby Projects Limited | Administrative & support | 2001 |
| Kirby Select Ltd | Wholesale & retail | 2025 |
| Kirby Technology Ltd | Arts & recreation | 2024 |
| Kirby Trader Limited | Wholesale & retail | 2025 |
| Kiren Transport Ltd | Transport & logistics | 2025 |
| Kirens BBQ Ltd | Manufacturing | 2024 |
| Kirilovs Limited | Other services | 2013 |
| Kirk Realty Ltd | Real estate | 2024 |
| Kirkbride Metal Fabrications Limited | Manufacturing | 1995 |
| Kirkby House Hotel Limited | Hospitality | 2010 |
| Kirkby Road Management Company Limited | Households | 2021 |
| Kirkhamgate Logistics Ltd | Transport & logistics | 2014 |
| Kirkhouse Haulage Ltd | Transport & logistics | 2014 |
| Kirkmuirhill Pharmacy Limited | Wholesale & retail | 2002 |
| Kirpa Fine Homes Ltd | Real estate | 2026 |
| Kirpa Therapy Ltd | Health & social care | 2025 |
| Kirsty Nicole Ltd | Other services | 2020 |
| Kirt & Co Accountants Limited | Professional & scientific | 2000 |
| Kirt Group Limited | Real estate | 2020 |
| Kirti and Jala SAI Ltd | Real estate | 2019 |
| Kirtley Building Contractors Limited | Construction | 2019 |
| Kirtley Fencing Limited | Construction | 2015 |
| Kirtons Bakery Limited | Manufacturing | 2007 |
| Kish Transport Ltd | Transport & logistics | 2012 |
| Kisil Consultancy Services Ltd | Information & communication | 2022 |
| Kisk Catering Services Ltd | Hospitality | 2021 |
| Kismat Weddings Ltd | Other services | 2020 |
| Kismet Fragrances Ltd | Wholesale & retail | 2024 |
| KIT365 Ltd | Information & communication | 2016 |