| J Wood Software Ltd | Information & communication | 2022 |
| J&A Fitting Services Limited | Construction | 2019 |
| J&B Auto Care Ltd | Other services | 2015 |
| J&B Go Limited | Hospitality | 2026 |
| J&B Lettings & Property Management Ltd | Real estate | 2023 |
| J&B Puritas Ltd | Administrative & support | 2025 |
| J&B Traders Limited | Transport & logistics | 2024 |
| J&D Building Ltd | Construction | 2025 |
| J&D Housing Group Limited | Real estate | 2026 |
| J&Dm Sykes Rail Services Ltd | Construction | 2019 |
| J&E Foods Ltd | Hospitality | 2021 |
| J&E Recovery Services Ltd | Wholesale & retail | 2025 |
| J&E Tyre Hub Ltd | Wholesale & retail | 2023 |
| J&F Drylining Limited | Construction | 2025 |
| J&G Civils Ltd | Construction | 2026 |
| J&H Eco Consultancy Ltd | Other services | 2025 |
| J&H Marketplace Limited | Wholesale & retail | 2025 |
| J&H Nails Ltd | Other services | 2025 |
| J&I Build Solutions Ltd | Construction | 2025 |
| J&J International Logistics UK Ltd | Transport & logistics | 2022 |
| J&J Properties (NW) Limited | Real estate | 2017 |
| J&J Surfacing Limited | Construction | 2025 |
| J&K Building Services NW Limited | Construction | 2019 |
| J&K Greek Food Limited | Hospitality | 2019 |
| J&K Haulage (NW) Ltd | Transport & logistics | 2018 |
| J&K Truck Hire Ltd | Transport & logistics | 2025 |
| J&L Exterior Cleaning Services Ltd | Administrative & support | 2024 |
| J&L Groundworks Liverpool Ltd | Administrative & support | 2022 |
| J&L Scaffold (NW) Limited | Construction | 2014 |
| J&M Facilities Limited | Administrative & support | 2018 |
| J&M Green Mortgage Services Ltd | Financial services | 2012 |
| J&M Rimmer Property Ltd | Real estate | 2023 |
| J&N Health Safety & Environment Consultants Ltd | Professional & scientific | 2019 |
| J&P Property Group Ltd | Real estate | 2026 |
| J&P Property Investment Group Ltd | Real estate | 2025 |
| J&P Torbo's Ltd | Real estate | 2025 |
| J&R Consultancy (NW) Ltd | Administrative & support | 2025 |
| J&R News Green Lane Limited | Wholesale & retail | 2024 |
| J&S Merseyside Ltd | Construction | 2025 |
| J&S Solar and Electrical Ltd | Construction | 2025 |
| J&T Recovery Services Ltd | Transport & logistics | 2026 |
| J&Y Shipping Ltd | Wholesale & retail | 2024 |
| J'S Pizza Liverpool Ltd | Hospitality | 2023 |
| J-Frame (NW) Limited | Construction | 2021 |
| J-R-S- Properties (Liverpool) Limited | Construction | 2002 |
| J-T-D Design Limited | Professional & scientific | 2011 |
| J-Teq EMS Solutions Ltd | Manufacturing | 1998 |
| J-WANG2023 Limited | Hospitality | 2023 |
| J. & D. Butler Holdings Limited | Professional & scientific | 1978 |
| J. & M. Haulage (Liverpool) Limited | Transport & logistics | 1974 |
| J. & R. Kenny Property Services Limited | Administrative & support | 1989 |
| J. & R.R. Goodyear & Sons Limited | Wholesale & retail | 1976 |
| J. & T. Joinery (Merseyside) Limited | Construction | 1975 |
| J. & Y. (Plastics) Limited | Professional & scientific | 1985 |
| J. Ashley Joinery Ltd | Construction | 2015 |
| J. Beattie & SON Limited | Manufacturing | 1956 |
| J. Blake Artisan Stone Limited | Manufacturing | 2025 |
| J. D. J. Interiors Ltd | Construction | 2015 |
| J. Davies Property Management Limited | Hospitality | 1996 |
| J. Deary Developments Ltd | Real estate | 2022 |
| J. G. Lilley Limited | Transport & logistics | 2018 |
| J. Hurst Limited | Wholesale & retail | 2003 |
| J. Irwin & SON Engineering Ltd. | Construction | 2017 |
| J. J. Kelly (Builders) Limited | Construction | 1995 |
| J. J. Rimmer Limited | Professional & scientific | 2015 |
| J. KOT Plumbing Limited | Construction | 2024 |
| J. Owens Domestic Cleaners Ltd | Administrative & support | 2019 |
| J. Rose (Tyres) Limited | Wholesale & retail | 1952 |
| J. W. Ultrasonics Limited | Manufacturing | 2012 |
| J. Wyke Limited | Wholesale & retail | 2003 |
| J.A. International Tyres Ltd | Wholesale & retail | 2024 |
| J.A.C Motors Limited | Wholesale & retail | 2014 |
| J.A.D Property Maintenance Ltd | Construction | 2014 |
| J.A.F Group Ltd | Real estate | 2022 |
| J.A.G. Property Services Limited | Real estate | 1999 |
| J.A.M Retail Limited | Wholesale & retail | 2019 |
| J.B Plastring Ltd | Construction | 2025 |
| J.B. Asphalt Limited | Construction | 1993 |
| J.C. and W. Craig Balfour Limited | Wholesale & retail | 1960 |
| J.C. Construction Limited | Construction | 1985 |
| J.C. Skillbridge Ltd | Administrative & support | 2026 |
| J.C. Tarmac Ltd | Construction | 2003 |
| J.C.S. Car Sales Ltd | Wholesale & retail | 2004 |
| J.E.B Atticus Limited | Financial services | 2017 |
| J.E.L Building & Maintenance Ltd | Construction | 2022 |
| J.E.L. Rail Training Ltd | Education | 2026 |
| J.E.M. IT Consulting Ltd | Information & communication | 2016 |
| J.E.Ts Centre | Education | 2012 |
| J.F. Guyers Limited | Professional & scientific | 2011 |
| J.G. Properties (Northwest) Ltd | Real estate | 2023 |
| J.G. Tiling Contractors Ltd | Construction | 2017 |
| J.H. Williams (Chemists) Limited | Wholesale & retail | 1965 |
| J.J. Marr and Company Limited | Construction | 1930 |
| J.J.Hewlett Limited | Real estate | 1944 |
| J.K. Property Maintenance Solution Ltd | Households | 2017 |
| J.K.E Property Services Ltd | Real estate | 2026 |
| J.Kerr Couriers Ltd | Transport & logistics | 2026 |
| J.Knap Trans Ltd | Transport & logistics | 2023 |
| J.L. Enterprises Limited | Real estate | 2002 |
| J.L. Heath & Company Limited | Water & waste | 1964 |