| Invar Technical Services Ltd | Professional & scientific | 2008 |
| Inventa Medical UK Limited | Wholesale & retail | 2017 |
| Invescom Ltd | Financial services | 2025 |
| Invest in Care Ltd | Health & social care | 2014 |
| Investment Ventures (B2L) Ltd | Real estate | 2021 |
| Invisiframe Limited | Manufacturing | 2014 |
| IO Design Studio Ltd | Professional & scientific | 2022 |
| IOH Holdings Limited | Financial services | 2025 |
| ION Bobi AVA Ltd | Transport & logistics | 2024 |
| Ipap Ultimate Holdings Limited | Administrative & support | 2020 |
| IPS Engineering Consultants Ltd | Professional & scientific | 2023 |
| IPT Midlands Ltd | Education | 2026 |
| IPT West Midlands Training Ltd | Education | 2026 |
| Iraq Business News Limited | Information & communication | 2010 |
| Irenovate Ltd | Construction | 2020 |
| Iron & Fire Holdings Limited | Wholesale & retail | 2020 |
| Iron & Rose Ltd | Wholesale & retail | 2016 |
| Iron and Fire Coffee Limited | Hospitality | 2020 |
| Iron and Fire Limited | Manufacturing | 2017 |
| Iron Horse Logistic Solutions Ltd | Transport & logistics | 2013 |
| Iron House Holdings Limited | Financial services | 2024 |
| Ironbridge Ventures Limited | Hospitality | 2004 |
| Ironvista Ltd | Wholesale & retail | 2025 |
| Irrigo (UK) Limited | Wholesale & retail | 2025 |
| Irvin-Wright Property Limited | Real estate | 2016 |
| ISB Contracting Ltd | Construction | 2009 |
| Iscope Utilities Limited | Professional & scientific | 2010 |
| Ispecc Limited | Manufacturing | 2017 |
| It's a Home Thing Limited | Real estate | 2024 |
| It's Feet First Ltd | Wholesale & retail | 2017 |
| It's Gleaming Limited | Households | 2023 |
| Itsasoa Limited | Real estate | 2026 |
| ITZ Home Partners Limited | Professional & scientific | 2026 |
| Ivor Morris Limited | Financial services | 2016 |
| IWP Developments Shrewsbury Ltd | Real estate | 2025 |
| IWP Investments Shrewsbury Ltd | Real estate | 2026 |
| J & E Consultancy Limited | Professional & scientific | 2022 |
| J & M Trivedi Ltd | Health & social care | 2010 |
| J & N Promotions and Associates | | 1994 |
| J & V Waddington Limited | Hospitality | 2019 |
| J B (Shrewsbury) Limited | Construction | 2002 |
| J Ball Education Ltd | Education | 2026 |
| J C Developments Group Ltd | Construction | 2020 |
| J C Rogers Electrical Contractors Limited | Construction | 2011 |
| J D Hoof Care Ltd | Agriculture & fishing | 2020 |
| J E Parkes Builders Limited | Construction | 2017 |
| J Fraser & Sons Ltd | Construction | 2019 |
| J G Building and Developments Ltd | Construction | 2022 |
| J Hilditch Building & Fabrication Limited | Construction | 2015 |
| J M Crosby Electrical Services Limited | Construction | 2016 |
| J M Thomas Farms Ltd | Agriculture & fishing | 2017 |
| J M Thomas Property Ltd | Hospitality | 2025 |
| J N Cubbin Limited | Construction | 2012 |
| J P Medical and Consulting Limited | Health & social care | 2022 |
| J P Owen Limited | Professional & scientific | 2022 |
| J Page Limited | Construction | 2003 |
| J Pugh Property Investments Ltd | Real estate | 2017 |
| J R & MRS C E Jones Limited | Agriculture & fishing | 1987 |
| J R Paddock Limited | Agriculture & fishing | 2003 |
| J R Plant Services Limited | Wholesale & retail | 2018 |
| J R R Property Limited | Real estate | 2022 |
| J S Pugh Ltd | Professional & scientific | 2017 |
| J S Rallye Limited | Real estate | 2010 |
| J T Page Roofing Ltd | Construction | 2022 |
| J T Plant Repairs Limited | Manufacturing | 2023 |
| J Thomas (Oswestry) Limited | Construction | 2021 |
| J Ward Consultancy Limited | Information & communication | 2010 |
| J Woods Ltd | Professional & scientific | 2023 |
| J&C Home Services Ltd | Construction | 2021 |
| J&C P Homes Limited | Construction | 2013 |
| J&E Hardaker Agricultural Services Ltd | Professional & scientific | 2023 |
| J&F Rentals Ltd | Households | 2026 |
| J&J Property Shropshire Ltd | Real estate | 2023 |
| J&J Signature Holdings Limited | Real estate | 2021 |
| J&J Signature Homes Limited | Real estate | 2021 |
| J&Pfp Homes Ltd | Real estate | 2025 |
| J&R Nanyang Ltd | Hospitality | 2026 |
| J-Tech Suspension Ltd | Manufacturing | 2013 |
| J. Corbo Limited | Wholesale & retail | 1994 |
| J. P. Taylor Ltd | Households | 2009 |
| J. Thomas Limited | Construction | 2006 |
| J.A. Woodroffe Limited | Wholesale & retail | 1968 |
| J.And J.Bland Limited | Agriculture & fishing | 1952 |
| J.Betton Electrical Services Ltd | Construction | 2018 |
| J.Bully’S Bikes Delivery and Recovery Services Ltd | Transport & logistics | 2025 |
| J.C. Davies Haulage Limited | Wholesale & retail | 1987 |
| J.C. Solutions Limited | Real estate | 2003 |
| J.M.P. Thomas 1909 Limited | Agriculture & fishing | 2023 |
| J.N.Y. Walmsley Ltd | Professional & scientific | 2012 |
| J.S. Bourne (Transport) Limited | Transport & logistics | 1978 |
| J.T. Hughes (Oswestry) Limited | Wholesale & retail | 1975 |
| J.W. Home Farming Limited | Agriculture & fishing | 2008 |
| J.W.Harris Ltd | Wholesale & retail | 2025 |
| J3 Building Futures LLP | | 2004 |
| JA Renewable & Plumbing Solutions Ltd | Agriculture & fishing | 2023 |
| Jack Case Construction Ltd | Construction | 2022 |
| Jack Holland Limited | Financial services | 2007 |
| Jackaman Ltd | Administrative & support | 2005 |
| Jackfield Ltd | Households | 2008 |
| Jackie Jones Yoga Limited | Health & social care | 2016 |