| A T R International Ltd | Wholesale & retail | 2024 |
| A Taste of Home by Maria and Sarah Ltd | Hospitality | 2025 |
| A to Z Preston Ltd | Hospitality | 2025 |
| A Tomlinson Medical Ltd | Health & social care | 2021 |
| A Whole World of Fencing Solutions Limited | Construction | 2014 |
| A Y a Business Solutions Ltd | Wholesale & retail | 2024 |
| A&A Health Associates Limited | Professional & scientific | 2015 |
| A&A Properties Preston Ltd | Real estate | 2025 |
| A&A Property Services Ltd | Real estate | 2024 |
| A&C Express Logistics Ltd | Transport & logistics | 2026 |
| A&C Property Services Ltd | Real estate | 2022 |
| A&D Civils Ltd | Construction | 2024 |
| A&D Sykula Property Investment Ltd | Real estate | 2022 |
| A&Dg Limited | Wholesale & retail | 2023 |
| A&E Grab Ltd | Construction | 2025 |
| A&E Tech Limited | Construction | 2005 |
| A&E Wheels Limited | Wholesale & retail | 2018 |
| A&F Investments Limited | Real estate | 2020 |
| A&G Construction(Preston) Limited | Construction | 2024 |
| A&J Brierley Developments Ltd | Real estate | 2025 |
| A&K Baron Properties Limited | Real estate | 2024 |
| A&K Holdings (NW) Ltd | Financial services | 2018 |
| A&L Walling Limited | Agriculture & fishing | 2022 |
| A&M Medical Limited | Health & social care | 2023 |
| A&M Real Estate UK Ltd | Construction | 2026 |
| A&N Davies Fabrications Ltd | Manufacturing | 2021 |
| A&N Real Estates Ltd | Construction | 2015 |
| A&Ng Ltd | Wholesale & retail | 2024 |
| A&P Knowhow Limited | Financial services | 2025 |
| A&R Group Consultancy Ltd | Professional & scientific | 2021 |
| A&R Group Ltd | Construction | 2017 |
| A&R UK Forecourt Ltd | Wholesale & retail | 2021 |
| A&S Fashion Preston Ltd | Wholesale & retail | 2024 |
| A&T Healthcare Ltd | Wholesale & retail | 2020 |
| A-Class Digital Ltd | Wholesale & retail | 2022 |
| A-Z Automotive Ltd | Wholesale & retail | 2017 |
| A-Z Trading Ltd | Wholesale & retail | 2018 |
| A. Burns (Manchester Meats) Limited | Wholesale & retail | 2021 |
| A. F. C. Fylde Limited | Arts & recreation | 2006 |
| A. G. Sloan Ltd | Health & social care | 2010 |
| A. J. W. King Ltd | Health & social care | 2003 |
| A. M. C. Diesel Engineering Limited | Financial services | 1987 |
| A. Moiz Pound Plus Ltd | Wholesale & retail | 2017 |
| A. S. Facer (Longton) Holdings Limited | Financial services | 2018 |
| A.C. Mitton Limited | Construction | 2001 |
| A.D.J. Limited | Administrative & support | 1991 |
| A.E.L. Projects Limited | Construction | 2020 |
| A.F.L. (Autofactors) Limited | Wholesale & retail | 1975 |
| A.H.Tree Ltd | Professional & scientific | 2023 |
| A.J Slater Building and Stonemasonry Ltd | Construction | 2025 |
| A.J. Holden Joinery & Building Limited | Construction | 2005 |
| A.J.Brickwork & Builders Ltd | Construction | 2020 |
| A.J.Busfield Limited | Wholesale & retail | 1967 |
| A.J.M Groundwork (NW) Ltd | Administrative & support | 2025 |
| A.J.M. Robertson Consulting Limited | Professional & scientific | 2005 |
| A.L. Ollerton Limited | Construction | 1994 |
| A.L.B Property Sales and Lettings Ltd | Real estate | 2024 |
| A.Matly Group Holdings Ltd | Financial services | 2025 |
| A.O.R. Brickwork Ltd | Construction | 2009 |
| A.P.C. Engineering Limited | Financial services | 1999 |
| A.R. Psychotherapy Ltd | Administrative & support | 2024 |
| A.R.M. Joinery Limited | Construction | 2005 |
| A.R.T.(G.B.) Limited | Manufacturing | 1990 |
| A.S Beauty Limited | Other services | 2017 |
| A.S. Facer (Longton) Limited | Wholesale & retail | 1954 |
| A.S.H. Investments (Lancashire) Ltd | Real estate | 2021 |
| A.S.S.H Investments Limited | Real estate | 2013 |
| A.T.R. Contractors & Builders Limited | Construction | 2016 |
| A.W. Baxter Produce Limited | Transport & logistics | 1988 |
| A.W. Developments (Liverpool) Limited | Real estate | 1988 |
| A1 Barbers (NW) Ltd | Other services | 2023 |
| A1 Bathrooms & Tiles Ltd | Construction | 2025 |
| A1 Business Solutions Ltd | Transport & logistics | 2023 |
| A1 Home Cleaning Ltd | Administrative & support | 2025 |
| A1 Homecare and Nursing Agency Ltd | Administrative & support | 2020 |
| A1 Motor Factors UK Ltd | Other services | 2007 |
| A1 Sealants North West Limited | Construction | 2019 |
| A1 Supa Skips Ltd | Water & waste | 1998 |
| A1 Tiling Ltd | Construction | 2020 |
| A1 Traffic Safety Limited | Public administration | 2017 |
| A1GARAGE Preston Ltd | Wholesale & retail | 2024 |
| A2B HV Cabling Assistance Ltd | Professional & scientific | 2016 |
| A2B Soloutions Limited | Administrative & support | 2019 |
| A2R Associates Ltd | Health & social care | 2024 |
| A2Z Auto (NW) Limited | Wholesale & retail | 2016 |
| A2Z BBQ Ltd | Hospitality | 2023 |
| A2Z Car Parts (NW) Limited | Wholesale & retail | 2026 |
| A2Z Imports Limited | Wholesale & retail | 2025 |
| A59 Carpets Ltd | Wholesale & retail | 2012 |
| A6 & Co Taxis Ltd | Other services | 2021 |
| A6 Glass Ltd | Wholesale & retail | 2024 |
| A6 Global Ltd | Wholesale & retail | 2025 |
| AA Gateway Ltd | Real estate | 2025 |
| AA Gynaecology Ltd | Health & social care | 2024 |
| AA Jackson Consulting Limited | Administrative & support | 2020 |
| AA Medicare Ltd | Health & social care | 2015 |
| AA Plastic Surgery Ltd | Health & social care | 2015 |
| AA Plumbing & Central Heating Ltd | Construction | 2026 |
| AA Primary Care Services Ltd | Health & social care | 2025 |
| AA Taxis Preston Ltd | Transport & logistics | 2024 |