| Khalsa JI Properties Limited | Real estate | 2021 |
| Khan & KIN Limited | Real estate | 2026 |
| Khan Builders Midland Ltd | Construction | 2019 |
| Khan Cars Ltd | Wholesale & retail | 2020 |
| Khan Derby Limited | Wholesale & retail | 2023 |
| Khan Enterprises Midland Ltd | Real estate | 2022 |
| Khan Transport Ltd | Transport & logistics | 2025 |
| Khan Tuition Centre Limited | Education | 2025 |
| Khan Tuition Limited | Education | 2025 |
| Khan Tuition Nottingham Limited | Education | 2026 |
| Khan's Hub Ltd | Wholesale & retail | 2022 |
| Khana Shana Walsall Ltd | Hospitality | 2026 |
| Khanman Sweet House Limited | Wholesale & retail | 2024 |
| Khanpharma Holdings Ltd | Financial services | 2021 |
| Khanpharma Property Holding Ltd | Real estate | 2021 |
| Khans Constructions Ltd | Construction | 2025 |
| Khans MED Limited | Health & social care | 2022 |
| Khans Midlands Properties Ltd | Real estate | 2026 |
| Khanye Ltd | Professional & scientific | 2022 |
| Khara Apparel Sourcing Limited | Wholesale & retail | 2019 |
| Khasrow Ltd | Transport & logistics | 2017 |
| Khayman Consulting Limited | Information & communication | 2018 |
| Khehra Properties Limited | Real estate | 2019 |
| KHH Houses Limited | Real estate | 2021 |
| KHM Developments Limited | Construction | 2022 |
| KHR Traders Limited | Wholesale & retail | 2025 |
| KHT Property Group Ltd | Financial services | 2025 |
| KHT Transport Limited | Transport & logistics | 2021 |
| Khyber Ventures Ltd | Wholesale & retail | 2025 |
| KIA ORA Coco Limited | Real estate | 2020 |
| Kiany Transport Ltd | Transport & logistics | 2020 |
| Kidd Home Properties Limited | Real estate | 2026 |
| Kids OT Works Ltd | Education | 2013 |
| Kieran Dwyer Consulting Ltd | Professional & scientific | 2026 |
| Kieran Gray Limited | Professional & scientific | 2021 |
| Kieran Lacey Properties Limited | Real estate | 2022 |
| Kihan Homes Ltd | Real estate | 2023 |
| Kilburn Social Club CIC | Hospitality | 2025 |
| Kilger Properties Limited | Real estate | 2025 |
| Killearn Holdings Ltd | Financial services | 2022 |
| Kilmory Consulting Ltd | Information & communication | 2018 |
| Kiln Gate (Burslem) Management Company Limited | Households | 2021 |
| Kilnstone Close Residents Management Company Ltd | Households | 2026 |
| Kilowatt Energy Limited | Energy | 2024 |
| Kim's Kitchen 4 Limited | Hospitality | 2018 |
| Kimber Properties Limited | Real estate | 1999 |
| Kimberley Group Holdings Ltd | Financial services | 2025 |
| Kimmi Gayle Tattoos Ltd | Other services | 2023 |
| Kimpton Giblin & Co Limited | Professional & scientific | 2016 |
| Kimtronics Limited | Extraterritorial | 2002 |
| Kinaroo Ltd | Financial services | 2018 |
| Kinase Consulting Limited | Construction | 2014 |
| Kincon Construction Limited | Construction | 2018 |
| Kind Maths Ltd | Education | 2025 |
| Kindent Limited | Manufacturing | 2002 |
| Kinder Estates Limited | Real estate | 2005 |
| Kindle Ltd | Transport & logistics | 2023 |
| Kindred Spirits Adventures CIC | Health & social care | 2026 |
| Kinetic Fire and Security Ltd | Construction | 2020 |
| Kinetic Orange Limited | Real estate | 2021 |
| Kinetik Fleet Limited | Administrative & support | 2015 |
| King Catering Limited | Hospitality | 2018 |
| King Construction (Derby) Limited | Construction | 2001 |
| King Kong Limited | Professional & scientific | 1979 |
| King's UK Group Limited | Professional & scientific | 2018 |
| Kingcroft Homes Limited | Real estate | 2015 |
| Kingfisher Concrete Products Limited | Wholesale & retail | 2005 |
| Kingfisher Construction Services Holdings (Derby) Limited | Construction | 2019 |
| Kingfisher Construction Services Limited | Construction | 1983 |
| Kingraffle Limited | Wholesale & retail | 2020 |
| Kingregis Limited | Real estate | 1977 |
| Kings Armoured Security Services Limited | Transport & logistics | 1996 |
| Kings Gate Residents Management Company Limited | Households | 2021 |
| Kings Mews (Drighlington) Management Company Limited | Households | 2019 |
| Kings Newton Design and Construction Limited | Construction | 2008 |
| Kings Park Residents Management Company Limited | Households | 2021 |
| Kingsburgh Consulting Limited | Professional & scientific | 2006 |
| Kingsbury Crest Limited | Real estate | 2026 |
| Kingsgrove Phase 5 (Blocks 1-8) Management Company Limited | Households | 2023 |
| Kingsman Property Group Ltd | Real estate | 2022 |
| Kingsman Real Estate Ltd | Real estate | 2018 |
| Kingsmead House (Derby) Management Company Limited | Households | 2003 |
| Kingsmere Holdings Limited | Real estate | 2019 |
| Kingsthorpe View Care Home Limited | Health & social care | 2021 |
| Kingston Gate Properties Limited | Real estate | 2012 |
| Kingswater Homes Limited | Real estate | 2022 |
| Kingswell Support Service Ltd | Health & social care | 2014 |
| Kingswood Place (Littleover) Management Company Limited | Households | 2004 |
| Kington Meadows Residents Management Company Limited | Households | 2026 |
| Kinleigh Financial Services Limited | Financial services | 1992 |
| Kinsden Properties Ltd | Real estate | 2019 |
| Kinsella Partners Ltd | Professional & scientific | 2009 |
| Kinsey (Midlands) Limited | Professional & scientific | 1993 |
| Kinstone Estates Limited | Real estate | 2025 |
| Kinward Ltd | Wholesale & retail | 2020 |
| KIR Specialists Ltd | Other services | 2013 |
| Kiracassie Ltd | Professional & scientific | 2013 |
| Kirby Estates Limited | Real estate | 2023 |
| Kiren Investments Limited | Real estate | 2020 |
| Kiri Estates Limited | Real estate | 2025 |