| A Roshan Ltd | Other services | 2026 |
| A S Hudson Properties Ltd | Financial services | 2023 |
| A S Roberts Welding Ltd | Manufacturing | 2015 |
| A S Specialist Cars Limited | Wholesale & retail | 2026 |
| A Scott Interiors Ltd | Manufacturing | 2018 |
| A Selway Construction Ltd | Construction | 2022 |
| A Sims Garden Services Limited | Administrative & support | 2014 |
| A Star Build Limited | Construction | 2019 |
| A Star Cars Hire Ltd | Administrative & support | 2024 |
| A Star Joinery Services Ltd | Construction | 2019 |
| A Star Travel Limited | Transport & logistics | 2019 |
| A T M (Electrical & Building Services) Ltd | Construction | 2005 |
| A Taylor Roofing Specialist Ltd | Construction | 2015 |
| A to Z Goods Ltd | Wholesale & retail | 2020 |
| A to Z NW Logistics Ltd | Transport & logistics | 2024 |
| A Touch of Class Debonair Ltd | Other services | 2014 |
| A Touch of Spice Ltd | Hospitality | 2022 |
| A TOW B Recovery Limited | Transport & logistics | 2022 |
| A Ugharadar Properties Limited | Real estate | 2020 |
| A W C Bolton Ltd | Wholesale & retail | 2025 |
| A W Plumbing and Heating UK Limited | Construction | 2008 |
| A Z a Investments Limited | Real estate | 2013 |
| A Z Holdings 1980 Ltd | Wholesale & retail | 2023 |
| A&A Bargain Ltd | Wholesale & retail | 2021 |
| A&A Desserts Limited | Hospitality | 2018 |
| A&A Direct Limited | Wholesale & retail | 2024 |
| A&A Property Ventures Ltd | Real estate | 2023 |
| A&A Sales Ltd | Wholesale & retail | 2024 |
| A&A2 Engineering Ltd | Professional & scientific | 2025 |
| A&C Auto Salvage (UK) Limited | Wholesale & retail | 2004 |
| A&C Marsh Property Management Limited | Households | 2024 |
| A&C Recyclers Ltd | Water & waste | 2026 |
| A&D Car Breaking Ltd | Wholesale & retail | 2020 |
| A&D HGV Motors Ltd | Wholesale & retail | 2022 |
| A&D Millichip Transport Limited | Transport & logistics | 2023 |
| A&E Sellers Limited | Wholesale & retail | 2024 |
| A&E Tech Holdings Limited | Administrative & support | 2021 |
| A&F Foods (Preston) Ltd | Hospitality | 2025 |
| A&F Forecourts Trading Limited | Construction | 2021 |
| A&F Property Group Ltd | Real estate | 2026 |
| A&F Transport NW Ltd | Transport & logistics | 2020 |
| A&H Clothing Ltd | Wholesale & retail | 2023 |
| A&H Construction Services Limited | Construction | 2025 |
| A&H Lettings Limited | Real estate | 2025 |
| A&H Property and Developments Ltd | Real estate | 2020 |
| A&I Investment and Ventures Limited | Hospitality | 2025 |
| A&J Property Ventures Ltd | Real estate | 2024 |
| A&K Plumbing Ltd | Construction | 2023 |
| A&K Property Group Ltd | Real estate | 2023 |
| A&K Property Solutions Ltd | Real estate | 2017 |
| A&L Trading Ltd | Wholesale & retail | 2013 |
| A&M Alliance Merit Ltd | Professional & scientific | 2017 |
| A&M Healthcare (NW) Ltd | Health & social care | 2014 |
| A&M Investments (NW) Ltd | Real estate | 2022 |
| A&M Prosperity Property Ltd | Real estate | 2020 |
| A&Mbbuilders Ltd | Construction | 2024 |
| A&O Transport Limited | Transport & logistics | 2013 |
| A&R Ecom Ltd | Wholesale & retail | 2025 |
| A&R NW Builders Ltd | Construction | 2024 |
| A&R Security Consultantancy Ltd | Administrative & support | 2025 |
| A&S Albion Ltd | Real estate | 2024 |
| A&S Catering Ltd | Hospitality | 2025 |
| A&S Events Management Ltd | Hospitality | 2021 |
| A&S Group NW Ltd | Health & social care | 2025 |
| A&S Ripon Limited | Health & social care | 2023 |
| A&S Tech Ltd | Wholesale & retail | 2023 |
| A&T Global Device Ltd | Wholesale & retail | 2017 |
| A&T Realty Ltd | Real estate | 2022 |
| A&Y Training & Security Services Ltd | Education | 2022 |
| A&Z Contractors Limited | Construction | 2022 |
| A&Z Supreme Logistics Ltd | Transport & logistics | 2021 |
| A-K- Newton Logistic Services Ltd | Transport & logistics | 2025 |
| A-Mobiles Ltd | Manufacturing | 2021 |
| A-Mobiles Sales Limited | Wholesale & retail | 2026 |
| A-P Studios Ltd | Professional & scientific | 2022 |
| A-Tech Property Consulting Limited | Construction | 2016 |
| A-Z Cars (NW) Limited | Wholesale & retail | 2025 |
| A-Z Discount Warehouse Ltd | Wholesale & retail | 2024 |
| A-Z Finds Ltd | Wholesale & retail | 2025 |
| A-Z Management Consultancy Ltd | Administrative & support | 2023 |
| A-Z Services MCR Ltd | Construction | 2022 |
| A. & S. Schofield Builders Limited | Construction | 1998 |
| A. Bradley Amusements Limited | Arts & recreation | 2026 |
| A. Hartigan DO Services Limited | Professional & scientific | 2026 |
| A. Mayne & SON Ltd | Real estate | 2016 |
| A. P. Burt & Sons Limited | Manufacturing | 1933 |
| A. W. Brindle & Company Limited | Professional & scientific | 1976 |
| A.A. Performance Limited | Wholesale & retail | 2008 |
| A.A.C. Waterproofing Limited | Construction | 1989 |
| A.B. Group Packaging UK Limited | Manufacturing | 2010 |
| A.B.L. Developments Limited | Construction | 1998 |
| A.C. Technology Ltd | Manufacturing | 2014 |
| A.Call Property Maintenance Limited | Construction | 2016 |
| A.Cole Transport Limited | Transport & logistics | 2019 |
| A.F Forrester Driving Solutions Ltd | Transport & logistics | 2023 |
| A.F.S.H. Properties Limited | Construction | 2016 |
| A.G.A Halal Limited | Wholesale & retail | 2013 |
| A.G.H. Solicitors LLP | | 2012 |
| A.G.K. Investment Properties Limited | Real estate | 2012 |
| A.I. UN Limited | Information & communication | 2019 |