| Kingdom Builders Youth Community Interest Company | Education | 2025 |
| Kingdom Cars & Minibuses Ltd | Transport & logistics | 2023 |
| Kingdom Driving School Ltd | Transport & logistics | 2016 |
| Kingdom Home & Garden Ltd | Wholesale & retail | 2019 |
| Kingdom Kids Ministry CIC | Arts & recreation | 2023 |
| Kingdom Mgmt Ltd | Real estate | 2025 |
| Kingdom Powerhouse Ministries Limited | Other services | 2024 |
| Kingdom Property Consultancy Ltd | Real estate | 2017 |
| Kingdomevangelicalnetwork Ltd | Professional & scientific | 2025 |
| Kingfisher Builders Ltd | Construction | 2025 |
| Kingfisher Mortgages LLP | | 2023 |
| Kingfisher Professional Services Limited | Administrative & support | 2014 |
| Kinghall Carpet Cleaning Ltd | Wholesale & retail | 2017 |
| Kingmaker Group Ltd | Professional & scientific | 2018 |
| Kings Bromley Marina Limited | Arts & recreation | 2007 |
| Kings Farm Day Nursery Limited | Education | 2003 |
| Kings Lynn V.E. Limited | Other services | 1998 |
| Kings of Nottingham Limited | Construction | 2018 |
| Kings Plumbing & Maintenance Ltd | Construction | 2025 |
| Kings Road Garage Limited | Wholesale & retail | 2005 |
| Kingsbank Properties Ltd | Real estate | 2019 |
| Kingsbury House Limited | Health & social care | 2014 |
| Kingsbury House Property Ltd | Real estate | 2016 |
| Kingsbury Qualify Limited | Extraterritorial | 2017 |
| Kingscote Developments Ltd | Professional & scientific | 2018 |
| Kingsman Interiors Limited | Wholesale & retail | 2015 |
| Kingsmede Properties Limited | Real estate | 2020 |
| Kingsmoor Associates Ltd | Professional & scientific | 2016 |
| Kingston Business Services Ltd | Professional & scientific | 2009 |
| Kingston Cooke (NO.2) Limited | Households | 2006 |
| Kingston Court Management (1992) Limited | Households | 1992 |
| Kingston Group International Limited | Real estate | 2023 |
| Kingston Hall Management Limited | Households | 1978 |
| Kingsway Supplies Ltd | Wholesale & retail | 2021 |
| Kingswood Corporation Limited | Professional & scientific | 1996 |
| Kingswood Invest Ltd | Real estate | 2019 |
| Kingswood Lodge RTM Company Limited | Households | 2014 |
| Kingswood Mobility Group Limited | Financial services | 2021 |
| Kingswood Residential Investment Management Limited | Households | 2017 |
| Kingswood Taxation and Wealth Management Ltd | Extraterritorial | 2003 |
| Kinoulton Wholesale Limited | Real estate | 1987 |
| Kinquest Ltd | Arts & recreation | 2026 |
| Kins Home Ltd | Manufacturing | 2019 |
| Kinsey Cars Ltd | Wholesale & retail | 2026 |
| Kinsley Environmental Limited | Professional & scientific | 2022 |
| Kinswear Limited | Real estate | 1933 |
| Kinzer Family Stores Ltd | Wholesale & retail | 2022 |
| Kipling Conveyancing Limited | Professional & scientific | 2020 |
| Kirby Management Company Limited | Financial services | 2020 |
| Kirby Service Management Limited | Financial services | 2020 |
| Kirbybond Limited | Real estate | 1983 |
| Kirinvest Ltd | Real estate | 2021 |
| Kirituhi Tattoo Limited | Arts & recreation | 2014 |
| Kirk Contracts Limited | Administrative & support | 2003 |
| Kirk Group Services Ltd | Construction | 2026 |
| Kirk Haulage Midlands Limited | Transport & logistics | 2024 |
| Kirk Industrial Cleaning Ltd | Administrative & support | 2021 |
| Kirk Renovations Ltd | Construction | 2019 |
| Kirk's Garage (Nottingham) Limited | Wholesale & retail | 2018 |
| Kirkby Builders Ltd | Construction | 2024 |
| Kirkby Cross House Ltd | Real estate | 2022 |
| Kirkby Cross Pizza House Ltd | Hospitality | 2026 |
| Kirkby Dental Practice Limited | Health & social care | 2018 |
| Kirkby in Ashfield Catholic Social Club Limited | Hospitality | 2010 |
| Kirkby Plant Hire Limited | Construction | 2014 |
| Kirkbygate Car Wash Ltd | Administrative & support | 2021 |
| Kirkbygate Tyre Centre Ltd | Wholesale & retail | 2021 |
| Kirkcaldy VE Limited | Other services | 2006 |
| Kirkham Estate Limited(The) | Real estate | 1946 |
| Kirkland Associates (Nottingham) Limited | Administrative & support | 2015 |
| Kirknalls Limited | Transport & logistics | 1991 |
| Kirsti Smith Ltd | Information & communication | 2023 |
| Kirsty Great Ltd | Professional & scientific | 2025 |
| Kiss Utilities Limited | Other services | 2019 |
| Kisses and Curls Ltd | Other services | 2022 |
| Kitanova Limited | Manufacturing | 2026 |
| Kitchen and Bathroom Renovations Ltd | Construction | 2025 |
| Kitchen and Coffee Grantham Limited | Hospitality | 2023 |
| Kitchen Fit Sandiacre Limited | Wholesale & retail | 2012 |
| Kitchen Point East Midlands Ltd | Manufacturing | 2025 |
| Kitchener Consultancy Limited | Professional & scientific | 2022 |
| Kitchenkreze Limited | Wholesale & retail | 2023 |
| Kite Developments Ltd | Construction | 2024 |
| Kitebusinesssolution Ltd | Construction | 2023 |
| Kites Business Solutions Ltd | Professional & scientific | 2026 |
| Kitklean Ltd | Administrative & support | 2021 |
| Kitronik Employee Trustee Limited | Extraterritorial | 2024 |
| Kitronik Limited | Manufacturing | 2005 |
| Kitson Associates Limited | Administrative & support | 2024 |
| Kitty Cafe Nottingham Limited | Hospitality | 2015 |
| Kitty Cafe Sheff Limited | Hospitality | 2026 |
| Kiva Skin Limited | Other services | 2017 |
| Kiyan Healthcare Ltd | Health & social care | 2023 |
| Kizzo Ltd | Real estate | 2021 |
| KJ Corporation Ltd | Administrative & support | 2020 |
| KJ Crushing and Recycling Ltd | Construction | 2021 |
| KJ Homes and Living Ltd | Real estate | 2025 |
| KJ Styles Limited | Wholesale & retail | 2015 |
| KJ Taylor Property Services Ltd | Construction | 2016 |
| Kjap Trading Limited | Other services | 2022 |