| Khrysosmint Limited | Financial services | 2024 |
| KHS (Birmingham) Ltd | Other services | 2016 |
| KHS Housing Limited | Real estate | 2025 |
| KHS Personnel Limited | Administrative & support | 1995 |
| Khuda Baksh Ltd | Wholesale & retail | 2024 |
| Khukhar Holdings Limited | Financial services | 2022 |
| Khukhar Properties Developments Limited | Construction | 2025 |
| Khukhar Properties Limited | Real estate | 2022 |
| Khum Ltd | Hospitality | 2025 |
| Khurana & Grover Ltd | Wholesale & retail | 2025 |
| Khurana Grocers (UK) Limited | Real estate | 2013 |
| Khurana Supermarket (UK) Ltd | Wholesale & retail | 2006 |
| Khurmi Limited | Real estate | 2023 |
| Khurram Group Ltd | Financial services | 2024 |
| Khurshid Homes Ltd | Real estate | 2026 |
| Khushall Foods 2019 Ltd | Hospitality | 2019 |
| Khushboo Textiles Ltd | Wholesale & retail | 2001 |
| Khushdil H. Fakir Limited | Administrative & support | 1981 |
| Khushdil Properties Ltd | Households | 2022 |
| Khushi Autos Ltd | Wholesale & retail | 2018 |
| Khushi Bridal Ltd | Wholesale & retail | 2026 |
| Khushi Car Sales Ltd | Wholesale & retail | 2024 |
| Khushi South Asian Women Community Group (Black Country) CIC | Other services | 2023 |
| Khushu Ltd | Education | 2024 |
| Khyaal Properties Limited | Real estate | 2026 |
| Khyati Limited | Real estate | 2019 |
| Khyber Bazar Ltd | Real estate | 2026 |
| Khyber Donner Ltd | Manufacturing | 2014 |
| Khyber Foods Ltd | Wholesale & retail | 2012 |
| Khyber Global Limited | Wholesale & retail | 2021 |
| Khyber Scrap Company Limited | Wholesale & retail | 2022 |
| Khyber Shop 1 Ltd | Wholesale & retail | 2025 |
| Khyber Shop 12 Ltd | Wholesale & retail | 2023 |
| Khyber Shop 15 Ltd | Wholesale & retail | 2024 |
| Khyber Shop 17 Ltd | Wholesale & retail | 2025 |
| Khyber Shop 2 Ltd | Wholesale & retail | 2025 |
| Khyber Shop 28 Ltd | Wholesale & retail | 2025 |
| Khyber Shop 3 Ltd | Wholesale & retail | 2025 |
| Khyber Shop 31 Ltd | Wholesale & retail | 2025 |
| Khyber Shop 40 Ltd | Wholesale & retail | 2026 |
| Khyber Shop 8 Ltd | Wholesale & retail | 2026 |
| Khyber Shop 9 Ltd | Wholesale & retail | 2023 |
| Khyber Xpress Ltd | Administrative & support | 2015 |
| Khyber Xpress WM Ltd | Administrative & support | 2025 |
| Khyratna Ltd | Wholesale & retail | 2024 |
| Khyzerdefence Ltd | Health & social care | 2026 |
| KI Sourcing Limited | Real estate | 2025 |
| KIA Kaha Consultancy Ltd | Health & social care | 2020 |
| Kiai Plumbing & Heating Ltd | Construction | 2019 |
| Kiala Holdings Ltd | Wholesale & retail | 2026 |
| Kian Capitals Ltd | Professional & scientific | 2021 |
| Kian Mobile Ltd | Wholesale & retail | 2022 |
| Kian Reeves Limited | Administrative & support | 2026 |
| Kiana Properties Ltd | Real estate | 2021 |
| Kiani Commercial Properties Ltd | Real estate | 2025 |
| Kiani Private Ltd | Hospitality | 2024 |
| Kianika Consultancy Services Limited | Information & communication | 2025 |
| Kiara Foods Ltd | Hospitality | 2024 |
| Kiaruth Ltd | Health & social care | 2017 |
| Kiaura Ltd | Education | 2024 |
| Kiazen Yardley Ltd | Wholesale & retail | 2010 |
| KIB Healthcare Training Ltd | Public administration | 2023 |
| KIB Hospitality Limited | Hospitality | 2025 |
| Kiba Food Services Ltd | Hospitality | 2024 |
| Kibis Good Food Ltd | Manufacturing | 2023 |
| Kibou Properties Limited | Real estate | 2024 |
| Kick Commercial Limited | Real estate | 2014 |
| Kick Masonry Limited | Construction | 2022 |
| Kick Nutrition Ltd | Wholesale & retail | 2026 |
| Kickshaw Ltd | Hospitality | 2021 |
| Kickstart English Ltd | Education | 2020 |
| Kico Abodes Ltd | Real estate | 2020 |
| Kicole Limited | Real estate | 2025 |
| KID Zone Hub Ltd | Education | 2024 |
| Kidah Holdings Ltd | Wholesale & retail | 2026 |
| Kidderminster Town Holdings Ltd | Hospitality | 2024 |
| Kiddichef.Com (UK) Limited | Manufacturing | 2012 |
| Kiddies World Day Nursery / Kids Club Ltd | Education | 2005 |
| Kiddizone 2 Ltd | Arts & recreation | 2015 |
| Kiddizone Ltd | Arts & recreation | 2014 |
| Kiddles Global Enterprises Limited | Wholesale & retail | 2012 |
| Kiddy & Partners Limited | Professional & scientific | 2018 |
| Kidege & Co Limited | Real estate | 2026 |
| Kids Clubhouse Ltd | Education | 2025 |
| Kids Corner Aston Ltd | Education | 2021 |
| Kids Fabrics Ltd | Wholesale & retail | 2025 |
| Kids First Choice Ltd | Education | 2024 |
| Kids Junction Ltd | Health & social care | 2022 |
| Kids Korner Nursery Limited | Health & social care | 2015 |
| Kids Learning Centre Ltd | Health & social care | 2023 |
| Kids ME Together Ltd. | Real estate | 2022 |
| Kids, Ladies & Parents, Specialists Ltd | Manufacturing | 2025 |
| KIDSTAFF20 Limited | Health & social care | 2020 |
| Kidz Explosion (UK) Ltd | Information & communication | 2024 |
| Kidz Zone Cadbury Time Club | Health & social care | 1999 |
| Kidz.Comm Limited | Health & social care | 2007 |
| Kiele Ltd | Wholesale & retail | 2025 |
| Kiely Bros Waste Limited | Water & waste | 2020 |
| Kiely Bros. Holdings Limited | Professional & scientific | 1998 |
| Kiely Bros. Limited | Construction | 1998 |