| Jwala Events Limited | Administrative & support | 2023 |
| K Boparai Construction Ltd | Construction | 2025 |
| K William Sipson Ltd | Hospitality | 2022 |
| K&K Property Services & Investment Ltd | Construction | 2025 |
| K. Mileckas Euro Service Ltd | Administrative & support | 2015 |
| K.B. International PVT Ltd | Wholesale & retail | 2022 |
| K@A Logistics Ltd | Transport & logistics | 2024 |
| Kabul London Ltd | Wholesale & retail | 2024 |
| Kada Technologies US Limited | Wholesale & retail | 2022 |
| Kaeman Limited | Professional & scientific | 2015 |
| Kaiser Services Ltd | Administrative & support | 2021 |
| Kala Travel Ltd | Administrative & support | 2025 |
| Kanvar Pro-Bio Limited | Manufacturing | 2024 |
| Kanye Limited | Real estate | 2022 |
| Karitec Limited | Information & communication | 2025 |
| Karma Kapital Ltd | Real estate | 2024 |
| Karman Ashtam Holdings Limited | Financial services | 2022 |
| Kasta Brickwork Ltd | Construction | 2023 |
| Katha Homes Limited | Real estate | 2021 |
| Katorz Ltd | Construction | 2015 |
| Kauldhar Property Group Ltd | Real estate | 2026 |
| KAY & S Properties Limited | Real estate | 2017 |
| Kayinat & Co Ltd | Wholesale & retail | 2024 |
| Kaylina 3 Ltd | Health & social care | 2020 |
| Kays Kitchen Limited | Hospitality | 2018 |
| Kayu Info Tech Limited | Information & communication | 2018 |
| Kazu Limited | Professional & scientific | 2015 |
| KB Food Works Limited | Wholesale & retail | 2025 |
| KBG Transportation Ltd | Transport & logistics | 2022 |
| KBN Global Ltd | Wholesale & retail | 2019 |
| KC Construction (Joinery) Ltd | Manufacturing | 2012 |
| Kemor Electrical Services Ltd | Construction | 2022 |
| Ketheeskanth Ltd | Wholesale & retail | 2020 |
| KEV Builders Ltd | Construction | 2024 |
| Kevan’S Kornershop Ltd | Wholesale & retail | 2026 |
| KEW Car Ltd | Transport & logistics | 2020 |
| Kexstar Limited | Information & communication | 2013 |
| Key Medical Consultancy Ltd | Health & social care | 2024 |
| KGD Properties Ltd | Real estate | 2023 |
| Khadr Roberts Limited | Administrative & support | 2014 |
| Khaira Contractors Limited | Construction | 2022 |
| Khalas Construction Limited | Construction | 2025 |
| Khalicious Home Bake Ltd | Wholesale & retail | 2026 |
| Khalid Salem Limited | Administrative & support | 2014 |
| Khalra Construction Ltd | Construction | 2025 |
| Khalra Properties Ltd | Real estate | 2024 |
| Khalsa Building & Readymix Ltd | Construction | 2019 |
| Khalsa Ground Works Ltd | Construction | 2026 |
| Khalsaji Investments Ltd | Real estate | 2025 |
| Khan & Wajid Limited | Real estate | 2026 |
| Khaniz Heathrow Indian Restaurant Ltd | Hospitality | 2024 |
| Khinda Haulage Ltd | Transport & logistics | 2025 |
| Khorshid Restaurant Limited | Hospitality | 2026 |
| Khurramsajjad Limited | Wholesale & retail | 2025 |
| Kingdom Cartel Ltd | Wholesale & retail | 2026 |
| Kingdom Holidays Group Ltd | Administrative & support | 2018 |
| Kingsville Court Residents Association Limited | Households | 1985 |
| KIP Investments Ltd | Real estate | 2019 |
| Kiskas Plumbing Ltd | Construction | 2023 |
| Kitchen Palace Limited | Hospitality | 2018 |
| Kiyan Housing Limited | Real estate | 2022 |
| Kizbowsports Ltd | Arts & recreation | 2022 |
| KJ Active Limited | Education | 2021 |
| KK Chicken Ltd | Hospitality | 2025 |
| KK Manor Ltd | Transport & logistics | 2015 |
| KK Workshop Limited | Wholesale & retail | 2025 |
| KKG Trading Limited | Wholesale & retail | 2026 |
| KM SRI (UK) Ltd | Administrative & support | 2021 |
| Kmafaro Limited | Public administration | 2023 |
| KMF Joinery Ltd | Construction | 2024 |
| KMK International Wholesale Limited | Wholesale & retail | 2019 |
| KN Technologies Limited | Professional & scientific | 2020 |
| Kode Foundry Ltd | Information & communication | 2023 |
| KP Safety Management Limited | Education | 2025 |
| Krss Construction Ltd | Construction | 2013 |
| Krss Group Limited | Construction | 2019 |
| Krss Interiors Limited | Construction | 2018 |
| Krsv Construction Ltd | Construction | 2024 |
| Ksen Ltd | Construction | 2026 |
| KSP Limited | Information & communication | 2023 |
| KUB Aesthetics Ltd | Health & social care | 2021 |
| Kumarasamy Ltd | Administrative & support | 2017 |
| Kvhp Ltd | Construction | 2025 |
| KVS Estate Ltd | Real estate | 2024 |
| KVS Property Investments Ltd | Real estate | 2025 |
| KW Mafaro Limited | Health & social care | 2015 |
| KWK Construction Ltd | Construction | 2016 |
| KY Transport Ltd | Transport & logistics | 2026 |
| KZ Lettings Ltd | Real estate | 2018 |
| L & K Contractors Ltd | Administrative & support | 2025 |
| L W Decor Ltd | Construction | 2019 |
| L&M Motors Ltd | Wholesale & retail | 2024 |
| L'Atelier SZ Ltd | Wholesale & retail | 2025 |
| L.S.G Construction Ltd | Construction | 2021 |
| LA and Klichian Asset Management Ltd | Real estate | 2023 |
| LAB364 Ltd | Professional & scientific | 2025 |
| Laffey Transporters Ltd | Transport & logistics | 2019 |
| Laidlaw Developments Limited | Administrative & support | 2014 |
| Lakehouse Lounge Limited | Hospitality | 2025 |
| Lakeside Parking Ltd | Transport & logistics | 2025 |