| Jaraboo Publications Ltd | Wholesale & retail | 2009 |
| JAY K9 Limited | Arts & recreation | 2018 |
| Jayaprakash Medical Services Limited | Real estate | 2022 |
| JB Accounting & Payroll Limited | Professional & scientific | 2020 |
| JB Personal Travel Ltd | Administrative & support | 2026 |
| JB Shopfitters & General Building Ltd | Construction | 2024 |
| Jbhtraining Ltd | Education | 2018 |
| JBK Sales Consultants Ltd | Wholesale & retail | 2025 |
| JC Electrical & OIL Boiler Services Ltd | Construction | 2022 |
| JC Manton Holdings Limited | Financial services | 2025 |
| JC Manton IP Limited | Administrative & support | 2025 |
| JC Manton Property Limited | Real estate | 2025 |
| JCP Travel Ltd | Administrative & support | 2017 |
| JDJ Engineering Limited | Wholesale & retail | 2025 |
| Jemgill Consultants Limited | Professional & scientific | 2023 |
| Jengill Limited | Real estate | 2017 |
| Jennifer Else Limited | Health & social care | 2020 |
| JEQ Properties Ltd | Real estate | 2020 |
| JG Properties (Worcestershire) Ltd | Real estate | 2018 |
| JG R2R’S Limited | Real estate | 2024 |
| Jiminy Protein Ltd | Manufacturing | 2016 |
| JJ Local Ltd | Wholesale & retail | 2024 |
| JKD Resources Limited | Professional & scientific | 2019 |
| JLN Leisure Ltd | Hospitality | 2018 |
| JLN Travel Limited | Administrative & support | 2011 |
| JLU Accounting Limited | Professional & scientific | 2017 |
| JMC Building & Bricklaying Contractors Limited | Construction | 2012 |
| JMW 4X4 Limited | Wholesale & retail | 2014 |
| John Holliday (Ludlow) Limited | Agriculture & fishing | 2006 |
| JON Buckle Photography Ltd | Professional & scientific | 2015 |
| Jonny P Consultants Ltd | Professional & scientific | 2025 |
| JS Developments (Midlands) Ltd | Construction | 2023 |
| JST Travel Ltd | Administrative & support | 2024 |
| JTP Building Ltd | Construction | 2022 |
| Jupiter Compliance Ltd | Professional & scientific | 2023 |
| JW Landscapes & Roofing Limited | Construction | 2024 |
| JW Technical Consultancy Ltd | Information & communication | 2016 |
| K a W Travel Ltd | Administrative & support | 2013 |
| K&F Tree & Landscapes Ltd | Administrative & support | 2026 |
| K3 Health Ltd | Financial services | 2021 |
| KA Horses Limited | Arts & recreation | 2013 |
| Kam's Barber Ltd | Other services | 2024 |
| Karolan Limited | Administrative & support | 2002 |
| Kate Daniels 1967 Ltd | Administrative & support | 2019 |
| KCD Media Ltd | Other services | 2013 |
| KCH Private Micro LLP | | 2021 |
| Keen Sales & Distribution Ltd | Wholesale & retail | 2026 |
| Keep IT Simple Organisers Ltd | Information & communication | 2019 |
| Kelsall Consultants Limited | Education | 2025 |
| Keyhr Limited | Professional & scientific | 2020 |
| Khfilmss Limited | Information & communication | 2015 |
| Kidderminster Development Limited | Real estate | 1934 |
| Kidderminster Self Storage Ltd | Transport & logistics | 2013 |
| Kimbo's Engineering Services Ltd | Professional & scientific | 2026 |
| Kink Competitions Ltd | Arts & recreation | 2025 |
| KJW Travel Limited | Administrative & support | 2011 |
| Klas Building Contractors Ltd | Construction | 2024 |
| Knutsford Terrace Ltd | Manufacturing | 2019 |
| KOI Golf Ltd | Wholesale & retail | 2021 |
| Koss Group Ltd | Extraterritorial | 2025 |
| Koss Motorcycles Ltd | Wholesale & retail | 2025 |
| Koss Travel Ltd | Extraterritorial | 2025 |
| Kristin Atherton Limited | Information & communication | 2023 |
| Ksmgt Limited | Information & communication | 2026 |
| Kudos Design Improvements Limited | Construction | 2010 |
| KYP Training Ltd | Education | 2021 |
| L&J Ashford Ltd | Other services | 2026 |
| Lagoonshore Ltd | Wholesale & retail | 2019 |
| Lambrou Investments Limited | Real estate | 1997 |
| LAN Roofing Services Ltd | Construction | 2025 |
| Landstar (Welland) Limited | Construction | 2018 |
| Langley Capital Holdings Ltd | Real estate | 2025 |
| LAR Financial Services Limited | Professional & scientific | 2009 |
| Larford Barns Management Company Limited | Households | 2004 |
| Laternans Ltd | Wholesale & retail | 2018 |
| LAX Lane Ltd | Real estate | 2026 |
| LBE Travel Ltd | Administrative & support | 2023 |
| LE Landscaping Services Ltd | Administrative & support | 2026 |
| Leapgate PR Limited | Professional & scientific | 2010 |
| Lemon Tech Management Limited | Professional & scientific | 2021 |
| Lemonwalker Ltd | Wholesale & retail | 2018 |
| Lench Badams Properties Ltd | Real estate | 2023 |
| Levenix Ltd | Wholesale & retail | 2018 |
| Lewis Installation Limited | Administrative & support | 2024 |
| LFD Electrical Services Ltd | Construction | 2025 |
| LHC Utilities Limited | Construction | 2025 |
| Libra Property Group Ltd | Construction | 2025 |
| Lickhill Carwash Ltd | Administrative & support | 2024 |
| Lifeclub International Limited | Extraterritorial | 2006 |
| Lifeplan Concierge Limited | Real estate | 2015 |
| Lifeplan Property Limited | Real estate | 2015 |
| Lima Food Machinery Ltd | Manufacturing | 2014 |
| Limeflixpro Ltd | Wholesale & retail | 2019 |
| Lincomb Holdings Limited | Financial services | 2020 |
| Lincomb Landscapes & Tree Services Ltd | Administrative & support | 2026 |
| Linkfeathers Ltd | Wholesale & retail | 2019 |
| Litl'Bit Equestrian Ltd | Agriculture & fishing | 2026 |
| Little Dragons Nursery Ltd | Education | 2018 |
| LJM Rides Ltd | Wholesale & retail | 2025 |
| LMH Travel Ltd | Administrative & support | 2015 |