| Amyset Limited | Professional & scientific | 2020 |
| AN Alternative Path Limited | Wholesale & retail | 2021 |
| AN Consultancy Nationwide Ltd | Professional & scientific | 2023 |
| AN Kitchens and Bedrooms of Bolton Ltd | Manufacturing | 2022 |
| AN Nafi’A Ltd | Wholesale & retail | 2025 |
| AN Ordinary MUM Menopause Strength CIC | Arts & recreation | 2025 |
| An&Dan Property Ltd | Real estate | 2025 |
| Anaaenterprise Ltd | Wholesale & retail | 2025 |
| Analice Care Limited | Health & social care | 2019 |
| Analogy Limited | Professional & scientific | 2006 |
| Analytico Solutions Limited | Information & communication | 2024 |
| Anam Attire Ltd | Other services | 2023 |
| Anams Limited | Hospitality | 2019 |
| Anam’S Vision Ltd | Health & social care | 2026 |
| Anan Consultancy Limited | Health & social care | 2015 |
| Anasa Care Limited | Public administration | 2024 |
| Anatech Limited | Professional & scientific | 2012 |
| Anavrin Mobile Massage Therapy Ltd | Other services | 2023 |
| Ancestry Seed Ltd | Wholesale & retail | 2020 |
| Anchor Engineering (Bolton) Limited | Manufacturing | 1981 |
| Anchor Vibe Ltd | Real estate | 2024 |
| Anchorage Care Solutions Ltd | Public administration | 2025 |
| Anchorage House Limited | Real estate | 2014 |
| Anchorite Services Limited | Information & communication | 2024 |
| Anchous Editing Ltd | Information & communication | 2022 |
| Ancient Foods Limited | Manufacturing | 2023 |
| Ancoats Soap Company Ltd | Wholesale & retail | 2022 |
| AND Healthcare Group Limited | Financial services | 2026 |
| AND Healthcare Ltd | Manufacturing | 2023 |
| And-Le Properties Ltd | Real estate | 2026 |
| Andelle Ltd | Information & communication | 2025 |
| Anderneal Properties Ltd | Real estate | 2025 |
| Andersen 3D Technology Ltd | Wholesale & retail | 2024 |
| Anderson 2082 Limited | Professional & scientific | 2002 |
| Anderson Holdings North West Ltd | Other services | 2025 |
| Anderton Centre - Loai Limited | Education | 2008 |
| Anderton Centre Paddlesport Club Ltd | Arts & recreation | 2020 |
| Andre's Kitchen Ltd | Manufacturing | 2025 |
| Andrea Donaldson SBS Ltd | Professional & scientific | 2005 |
| Andrea Donaldson Small Business Services Ltd | Professional & scientific | 2017 |
| Andreas Baumann Ltd | Health & social care | 2019 |
| Andres Incorporations Limited | Information & communication | 2025 |
| Andrew Beatty Ltd | Construction | 2007 |
| Andrew Bennet Limited | Information & communication | 2023 |
| Andrew Fruish Consulting Ltd | Information & communication | 2025 |
| Andrew Horrocks Limited | Agriculture & fishing | 2003 |
| Andrew Melling Ltd | Professional & scientific | 2011 |
| Andrew Morgan Logistics Limited | Transport & logistics | 2017 |
| Andrew Patrick Holdings Limited | Professional & scientific | 2025 |
| Andrew Stonehouse Joinery Limited | Construction | 2015 |
| Andrew Tootell Plumbing Services Limited | Construction | 2011 |
| Andrew Whittle Interiors Limited | Construction | 2022 |
| Andrew Winstanley Holdings Limited | Financial services | 2021 |
| Andrew Wood Construction Limited | Construction | 2001 |
| Andrew's Courier Services Limited | Transport & logistics | 2011 |
| Andrewgraceproperties Ltd | Real estate | 2023 |
| Andrina’S Cabinet London Ltd | Professional & scientific | 2023 |
| Androzani Limited | Arts & recreation | 2017 |
| Andy Jackson Interpreting Limited | Professional & scientific | 2012 |
| Andy Waller Limited | Information & communication | 2024 |
| Andy Wilson ENG Services Ltd | Professional & scientific | 2022 |
| Andy&Claire Ahern Contracting Ltd | Administrative & support | 2023 |
| Andys Attic Limited | Wholesale & retail | 2026 |
| Anees Khoda Ltd | Other services | 2009 |
| Anfenifigi Limited | Professional & scientific | 2024 |
| Angel's Therapeutic Care Ltd | Health & social care | 2021 |
| Angela Barnes Consultants Ltd | Other services | 2020 |
| Angeldream Properties Limited | Construction | 1992 |
| Angelic Crystals Ltd | Extraterritorial | 2022 |
| Angellady Ltd | Wholesale & retail | 2026 |
| Angels Photography Ltd | Professional & scientific | 2004 |
| Angie Inns Ltd | Hospitality | 2025 |
| Anglaco-Elixr- Limited | Construction | 2025 |
| Anglaco-Residential and Commercial Limited | Real estate | 2026 |
| Anglesey Power Boats Ltd | Wholesale & retail | 2003 |
| Anglo Iranian Properties Limited | Real estate | 2001 |
| Angry Durian Ltd | Wholesale & retail | 2021 |
| ANH Textiles Limited | Wholesale & retail | 2018 |
| Anigma Consulting Ltd | Professional & scientific | 2024 |
| Animal Wardens Ltd | Other services | 1995 |
| Animetcgripandship Ltd | Wholesale & retail | 2026 |
| Animi Solutions Limited | Information & communication | 2014 |
| Anita Woolley & Co Limited | Professional & scientific | 2003 |
| Anitany Limited | Health & social care | 2017 |
| Aniya Ltd | Other services | 2018 |
| Anlie Ltd | Information & communication | 2024 |
| Anlon Ceilings and Partitions Limited | Construction | 2018 |
| ANM Corp Ltd | Wholesale & retail | 2023 |
| ANN Greenwood Consultancy Limited | Professional & scientific | 2012 |
| Ann's Ltd | Health & social care | 2023 |
| Anna Katharine Limited | Households | 2025 |
| Anna Rose Apparel Ltd | Wholesale & retail | 2020 |
| Annabelle Victoria Limited | Other services | 2023 |
| Annalea Holdings Ltd | Professional & scientific | 2005 |
| Anne Reeves Dyslexia and Neurodiversity Support Ltd | Health & social care | 2026 |
| Annettemedical Limited | Health & social care | 2022 |
| Annierose Properties Ltd | Real estate | 2019 |
| Anomi Ltd | Professional & scientific | 2020 |
| Another Space Living Ltd | Real estate | 2023 |
| Anpar Research Ltd | Professional & scientific | 2019 |