| K and AM Services Limited | Hospitality | 2014 |
| K I Legal Services Ltd | Professional & scientific | 2022 |
| K J Air Ltd | Energy | 2004 |
| K Suarez Miranda Ltd | Professional & scientific | 2018 |
| K&F Property Group Ltd | Real estate | 2025 |
| K&L Associates (Technical & Logistical Support) Ltd | Professional & scientific | 2011 |
| K&L Drive Ltd | Transport & logistics | 2025 |
| K-Beauty Labs Ltd | Wholesale & retail | 2023 |
| K.Atkinson Transport Limited | Transport & logistics | 2021 |
| K.K. Automobiles UK Ltd | Professional & scientific | 2023 |
| K1BARBER1 Limited | Other services | 2023 |
| Kaboky Ltd | Wholesale & retail | 2020 |
| KAC Academy Limited | Education | 2026 |
| Kairo Engine Ltd | Manufacturing | 2026 |
| Kalv Luxury London Ltd | Wholesale & retail | 2025 |
| Karen's Haven for Copd Community Interest Company | Education | 2025 |
| Kariss Contractors Ltd | Construction | 2020 |
| KB Hyde Ltd | Construction | 2024 |
| KBM Drainage Design Limited | Professional & scientific | 2014 |
| KBR Print Solutions Limited | Other services | 2017 |
| KCI Freight Holdings Ltd | Financial services | 2021 |
| KD Property & Lettings Ltd | Real estate | 2024 |
| KD Roofing Commercial Ltd | Construction | 2024 |
| KD Roofing Domestic Ltd | Construction | 2024 |
| KD Stocks & Holdings Limited | Financial services | 2025 |
| Keane Dwellings Ltd | Real estate | 2025 |
| Kenley College Ltd | Wholesale & retail | 2017 |
| Kenley Hotels Ltd | Hospitality | 2025 |
| Kenno Holdings Ltd | Real estate | 2020 |
| Kershaw Property Investments Ltd | Households | 2020 |
| Kershaws GAS Services Limited | Construction | 2023 |
| KES Global Consultancy Ltd | Professional & scientific | 2022 |
| Khosru Limited | Hospitality | 2016 |
| Khullar Investments Limited | Real estate | 2025 |
| Kidacota Limited | Health & social care | 2020 |
| Kind Tutoring Ltd | Education | 2026 |
| Kindling Consultants Ltd | Professional & scientific | 2025 |
| Kindred Roots Community Interest Company | Education | 2022 |
| Kinetic Customs Limited | Manufacturing | 2025 |
| Kingshome Properties Limited | Real estate | 2013 |
| Kirby's Auto Repairs Ltd | Wholesale & retail | 2025 |
| Kirbys of Denton Limited | Real estate | 1957 |
| KITCHEN3D Ltd | Construction | 2025 |
| Kitchristine Ltd | Hospitality | 2018 |
| KJ8 Truck Ltd | Transport & logistics | 2025 |
| KJC Project Management Limited | Professional & scientific | 2022 |
| KLH Group Limited | Administrative & support | 2017 |
| Knight Specialist Services Ltd | Professional & scientific | 2013 |
| Knox Energy & Technology Ltd | Wholesale & retail | 2024 |
| Kosmo Living Limited | Professional & scientific | 2025 |
| KPV Property Limited | Real estate | 2018 |
| KTM Automotive Solutions Limited | Wholesale & retail | 2018 |
| KTY Reviews Ltd | Wholesale & retail | 2024 |
| Kudrat Homes Ltd | Real estate | 2026 |
| Kuhl-Tek Ltd | Other services | 2010 |
| Kumar Construction Services Ltd | Construction | 2018 |
| Kurti Investment Ltd | Real estate | 2026 |
| Kurti Property Ltd | Real estate | 2025 |
| Kutus Aviation Services Limited | Manufacturing | 2016 |
| Kwik-Fix Roofing and Building Ltd | Construction | 2016 |
| L B Williams Ltd | Households | 2025 |
| L J Crook Ltd | Wholesale & retail | 2019 |
| L J M Structures Limited | Construction | 2014 |
| L P Construction & Plastering Limited | Construction | 2019 |
| L R Eames Limited | Manufacturing | 2019 |
| L S Solutions Ltd | Professional & scientific | 2005 |
| L&M Scaffolding Erectors Limited | Construction | 2017 |
| L.A Master Nails & Spa Ltd | Other services | 2024 |
| L.J.P. Wellbeing Healthcare Services Ltd | Administrative & support | 2022 |
| LA Parisienne Beauty Limited | Other services | 2011 |
| Labacks Limited | Health & social care | 2024 |
| Laffinstock Comedy Ltd | Arts & recreation | 2026 |
| Lamp-Ha Productions Ltd | Arts & recreation | 2025 |
| Lamplighter Plastic Mouldings Limited | Manufacturing | 2001 |
| Lancashire Landscapes (UK) Limited | Administrative & support | 2008 |
| Land and Property Investments Limited | Real estate | 1994 |
| Land at Hully Street & Water Street Ltd | Real estate | 2022 |
| Land KAY Ltd | Real estate | 2013 |
| Landmb Properties Ltd | Real estate | 2018 |
| Landslow Estates Limited | Administrative & support | 1950 |
| Langos Steel Works Ltd | Other services | 2024 |
| LAP Business Solutions Limited | Other services | 2019 |
| Larahgold Jewellery Ltd | Wholesale & retail | 2025 |
| Launch Quest Ltd | Information & communication | 2022 |
| Laurencian Properties Ltd | Real estate | 2022 |
| Law Installations Limited | Construction | 2005 |
| Lawnhopper (South Manchester) Limited | Administrative & support | 2009 |
| LD Properties Ltd | Real estate | 2025 |
| Leanne Beverley Cake Design Ltd | Manufacturing | 2022 |
| LEE Adams Builders Limited | Construction | 2003 |
| LEE Farm Rushton Ltd | Agriculture & fishing | 2018 |
| LEE Smith Catering & Hospitality Solutions Limited | Hospitality | 2024 |
| Leefield Properties Limited | Construction | 2021 |
| Lemon Slice Limited | Information & communication | 2023 |
| Lennon Electrical Limited | Energy | 2017 |
| Leonard Kurti Ltd | Other services | 2020 |
| Leopard Procurement Limited | Professional & scientific | 2023 |
| Lets EAT Limited | Hospitality | 2019 |
| Level Best Building Services (North West) Limited | Construction | 2018 |
| Level UP Collectables Ltd | Wholesale & retail | 2026 |