| Khan ALI Services Ltd | Arts & recreation | 2026 |
| Khan and Company Property Ventures Ltd | Households | 2026 |
| Khan Boxing Promotions Limited | Arts & recreation | 2024 |
| Khan Eats Group Ltd | Financial services | 2021 |
| Khan Medics Ltd | Health & social care | 2012 |
| Khan Motors Limited | Wholesale & retail | 2024 |
| Khan SR Ltd | Real estate | 2026 |
| Khans Catering Services Ltd | Hospitality | 2024 |
| Khans Middle Eastern and Pakistani Restaurant Limited | Hospitality | 2023 |
| Khawaja Pharm Ltd | Wholesale & retail | 2023 |
| Khawar Ijaz Ltd | Wholesale & retail | 2024 |
| Khawla London Ltd | Professional & scientific | 2023 |
| KHC Trading Services Ltd | Transport & logistics | 2018 |
| KHD Tech Ltd | Wholesale & retail | 2023 |
| KHD Vision Limited | Health & social care | 2015 |
| Khents Ltd | Wholesale & retail | 2023 |
| Khhconsult Ltd | Professional & scientific | 2025 |
| Khimani Construction Ltd | Construction | 2024 |
| KHN Group Ltd | Real estate | 2025 |
| Khoda Trader Ltd | Wholesale & retail | 2023 |
| Khodal Trading Ltd | Wholesale & retail | 2022 |
| Khokhar Traders PK Ltd | Wholesale & retail | 2023 |
| Khokhar Transport Ltd | Transport & logistics | 2026 |
| Khokhar Travel Ltd | Transport & logistics | 2021 |
| Khota & Sons Ltd | Real estate | 2024 |
| Khuna Enterprises Limited | Administrative & support | 2025 |
| KI London Logistics Limited | Transport & logistics | 2018 |
| Kiai Limited | Transport & logistics | 2020 |
| Kiara World Limited | Administrative & support | 2011 |
| Kibrahim Ltd | Health & social care | 2023 |
| Kiburi Ltd | Wholesale & retail | 2025 |
| Kicks Corporation Ltd | Wholesale & retail | 2023 |
| Kidderminster Health Consortium Limited | Wholesale & retail | 2011 |
| Kiddy World Ltd | Education | 2016 |
| Kids a Wonder Ltd | Wholesale & retail | 2019 |
| Kids and Carers Limited | Extraterritorial | 2003 |
| Kids Connection (Bolton) Ltd | Wholesale & retail | 2024 |
| Kids Connection (Online) Ltd | Wholesale & retail | 2024 |
| Kids Corner Day Care Nursery Limited | Health & social care | 2008 |
| Kids Wreck Ltd | Health & social care | 2017 |
| Kidsbury Role Play Villages Ltd | Arts & recreation | 2024 |
| Kidzone OUT of School Clubs Limited | Health & social care | 2017 |
| Kieran Kelly Limited | Professional & scientific | 2013 |
| Kilbrin Financial Management Limited | Professional & scientific | 2018 |
| Kilbrin Property Ltd | Real estate | 2023 |
| Kilbrin Wealth Limited | Financial services | 2021 |
| Kilda Properties Ltd | Real estate | 2025 |
| Kildare Building Services Limited | Construction | 1967 |
| Kildare Developments Limited | Construction | 2018 |
| Kileji International Limited | Wholesale & retail | 2016 |
| Kilkern Civils Limited | Administrative & support | 2015 |
| Kilkern Ltd | Construction | 2010 |
| Kilmartin Limited | Construction | 2003 |
| Kilsaran (International) Unlimited | Construction | 2014 |
| Kilworth Group Ltd | Construction | 2024 |
| KIM Parker Ltd | Health & social care | 2022 |
| KIM Weston PT Ltd | Arts & recreation | 2018 |
| Kimk Limited | Wholesale & retail | 2024 |
| Kimsfour Limited | Extraterritorial | 2022 |
| KIN LA Belle Resto Limited | Hospitality | 2025 |
| Kindercare Fostering Ltd. | Health & social care | 1998 |
| Kindra Group Ltd | Professional & scientific | 2025 |
| Kindred Village Ltd | Professional & scientific | 2025 |
| Kinetic Motion Limited | Wholesale & retail | 2021 |
| Kinetic Properties Ltd | Real estate | 2026 |
| Kinetic Sports Physiotherapy Limited | Health & social care | 2018 |
| King K9 Ltd | Professional & scientific | 2015 |
| Kingdom Builders NE Limited | Construction | 2022 |
| Kingdom Dwellings Limited | Construction | 2003 |
| Kingdom Haulage Ltd | Transport & logistics | 2023 |
| Kingdom Home Creations Ltd | Information & communication | 2025 |
| Kingdom of Sheba Ltd | Health & social care | 2026 |
| Kingdom of Sweets (NW) Ltd | Wholesale & retail | 2025 |
| Kingdom Security Limited | Extraterritorial | 2016 |
| Kings Barber Bolton Ltd | Other services | 2025 |
| Kings Building Solutions Ltd | Construction | 2024 |
| Kings Kitchen Fitters Ltd | Construction | 2025 |
| Kings People's Church | Education | 2006 |
| Kings Property Holdings Limited | Real estate | 2016 |
| Kingsley Film Company Limited | Information & communication | 2023 |
| Kingsley Plasterers Limited | Construction | 2005 |
| Kingsmead Leisure Ltd | Education | 2023 |
| Kingsnorth Solicitors Limited | Professional & scientific | 2017 |
| Kingston Estates & Property Ltd. | Other services | 2008 |
| Kingston Estates (UK) Limited | Real estate | 2003 |
| Kingston Hendry Limited | Wholesale & retail | 2022 |
| Kingsway Rehab Ltd | Other services | 2018 |
| Kingsway Square Limited | Construction | 2020 |
| Kingwood Group Ltd | Real estate | 2022 |
| Kingwood Solutions Limited | Professional & scientific | 2007 |
| Kingwright Innovations Ltd | Wholesale & retail | 2024 |
| Kinita Investments Ltd | Real estate | 2018 |
| Kink Creative Ltd | Professional & scientific | 2023 |
| Kinoro Games Ltd | Information & communication | 2018 |
| Kinsail Enterprises Ltd | Wholesale & retail | 2024 |
| Kinsley Consulting Limited | Professional & scientific | 2009 |
| Kintsyougi Ltd. | Education | 2020 |
| Kinwood Investments Ltd | Real estate | 2025 |
| Kinyobi Bakery Limited | Manufacturing | 2025 |
| Kinza Foods Ltd | Manufacturing | 2008 |