| Jjhd Limited | Wholesale & retail | 2012 |
| Jldr Ltd | Information & communication | 2018 |
| JMR Property UK Limited | Real estate | 2008 |
| JMW Transport Ltd | Transport & logistics | 2026 |
| JN Ltd | Financial services | 2026 |
| JO Holloway Consulting Limited | Financial services | 2026 |
| John Cannaby Associates Limited | Financial services | 2009 |
| John Chester Limited | Agriculture & fishing | 2009 |
| John Oliver Chiropractor Limited | Health & social care | 2014 |
| Johnson Design Holdings Ltd | Financial services | 2024 |
| Johnson Design Partnership Limited | Professional & scientific | 2006 |
| Jolly Collier Ltd | Real estate | 2025 |
| Jones Estates Limited | Real estate | 2017 |
| JPI Aviation Ltd | Administrative & support | 2022 |
| JPJ Brickwork Limited | Construction | 2013 |
| JPM Electrics Ltd | Construction | 2015 |
| JPP Investments Limited | Real estate | 1944 |
| JSR Construction Midlands Ltd | Construction | 2023 |
| Jules’S Escapes Ltd | Hospitality | 2026 |
| Julie Bosworth Limited | Transport & logistics | 2014 |
| Just Jayne Interiors Limited | Wholesale & retail | 2002 |
| JWA Carpentry Ltd | Administrative & support | 2016 |
| JWH Window Cleaning Ltd | Administrative & support | 2024 |
| Jwsvehicles Limited | Wholesale & retail | 2022 |
| JXM Holdings Ltd | Financial services | 2023 |
| K & H Services Limited | Construction | 2004 |
| K.J Cook Electrical Ltd | Construction | 2018 |
| Kanthanos Ltd | Households | 2020 |
| Kanyini (Consulting) CIC | Education | 2026 |
| Kanyini Consultancy Ltd | Education | 2024 |
| Kasm Capital Ltd | Financial services | 2022 |
| Kasm Services Group Limited | Health & social care | 2020 |
| Kate Riley Medicals Limited | Health & social care | 2017 |
| KAY E Gibbons Holdings Ltd | Construction | 2019 |
| Kecol Pumping Systems Limited | Manufacturing | 2007 |
| Keith Davies Agricultural Limited | Manufacturing | 2008 |
| Kellaki Ltd | Hospitality | 2024 |
| Kent, Brown & Oaks Limited | Professional & scientific | 2018 |
| Kevin Probert Em/Droitwich Limited | Financial services | 2013 |
| Key Property Services ( UK ) Limited | Real estate | 2018 |
| Key to Training & Consultancy Ltd | Education | 2020 |
| Kingsbridge Property Services Limited | Real estate | 1991 |
| Kington Consulting Limited | Professional & scientific | 2023 |
| Kitty Foster Properties Limited | Real estate | 2015 |
| KKP (Shropshire) Limited | Information & communication | 2021 |
| KKP Touring LLP | | 2023 |
| Kolco Ltd | Professional & scientific | 2021 |
| Kore Labs Limited | Information & communication | 2017 |
| KUM Tong 55 Limited | Hospitality | 2022 |
| KWS Management Company Limited | Households | 2011 |
| Kyoti Graphics Limited | Manufacturing | 2009 |
| Kyte Consultancy Ltd | Professional & scientific | 2016 |
| L N J Services Limited | Transport & logistics | 2016 |
| L N S Developments Limited | Construction | 2007 |
| L R Jones Shropshire Ltd | Financial services | 2019 |
| L.A Fabs Ltd | Manufacturing | 2026 |
| L.A.W Transport Worcestershire Ltd | Transport & logistics | 2019 |
| L.J.M. Greenfinch Limited | Wholesale & retail | 1997 |
| LA Grande Oak Tree Ltd | Arts & recreation | 2019 |
| Label UK Automatic Door Solutions Limited | Construction | 1994 |
| Land & Estate Maintenance Ltd | Other services | 2021 |
| Lasersport International Limited | Manufacturing | 2000 |
| Lateralus Partners Limited | Professional & scientific | 2025 |
| Law Installations and Property Maintenance Limited | Construction | 2015 |
| Lazer Groundworks Ltd | Construction | 2015 |
| LDW Bugs Ltd | Agriculture & fishing | 2021 |
| LDW Exotics Ltd | Wholesale & retail | 2024 |
| LE Domaine Grangier Ltd | Wholesale & retail | 2025 |
| Leacroft Lodge Limited | Health & social care | 1989 |
| Learning Cultures Limited | Education | 2010 |
| Leavenhalls Classic & Prestige (Cars) Ltd | Wholesale & retail | 2022 |
| LEM Assets Limited | Real estate | 2010 |
| Lens Orchard Logs Ltd | Agriculture & fishing | 2024 |
| Leonardt Limited | Manufacturing | 2006 |
| Let's Fearlessly Go Ltd | Education | 2025 |
| Lewis Arborcare Limited | Administrative & support | 2008 |
| Lewis Yates Law Ltd | Professional & scientific | 2025 |
| Lewsun Ltd | Information & communication | 2024 |
| LFL Engineering Solutions Limited | Professional & scientific | 2010 |
| LFO Enterprises Limited | Professional & scientific | 2011 |
| LH Bridgnorth Limited | Real estate | 2021 |
| LHM Advisory Limited | Professional & scientific | 2025 |
| Liberty Creative Limited | Administrative & support | 2006 |
| Licensearc Ltd | Wholesale & retail | 2025 |
| Lightwire Electrical Limited | Construction | 2011 |
| Lightwire Group Limited | Real estate | 2017 |
| Liliums Imaginarium Ltd | Other services | 2025 |
| Limberger Associates Ltd | Professional & scientific | 2015 |
| Lime Internet Ltd | Wholesale & retail | 2011 |
| Lindum Capital Ltd | Professional & scientific | 2025 |
| Lineas Construction Services Ltd | Construction | 2018 |
| Lion & Loade Property Ltd | Construction | 2026 |
| Lionheart Creations Ltd | Wholesale & retail | 2021 |
| Listley Street Freehold Ltd | Real estate | 2024 |
| Live IS Life Community CIC | Information & communication | 2026 |
| Living the Dream Limited | Extraterritorial | 2011 |
| Lloyds Plumbing & Heating Ltd | Construction | 2023 |
| Lmlv Limited | Other services | 2015 |
| LMT 2023 Ltd | Hospitality | 2023 |
| Lockley Mechanical Limited | Administrative & support | 1999 |