| Andcarv Limited | Financial services | 2016 |
| Anderlux Limited | Real estate | 1965 |
| Anderson Bickley Ltd | Information & communication | 2015 |
| Anderson Financial Management Limited | Professional & scientific | 2012 |
| Anderson Mortgages Ltd | Financial services | 2015 |
| Anderson Parslow Ltd | Professional & scientific | 2018 |
| Anderson Roots Limited | Extraterritorial | 2020 |
| Andersons Drainage Solutions Ltd | Water & waste | 2019 |
| Andersons Storage Solutions Ltd | Real estate | 2020 |
| Andersons Waste Management Ltd | Water & waste | 2000 |
| Andersons Waste Treatment Centre Ltd | Water & waste | 2012 |
| Andes Cleaning Services Ltd | Administrative & support | 2025 |
| Andhand Ltd | Wholesale & retail | 2021 |
| Andlex Limited | Wholesale & retail | 2019 |
| Andrade Rescuer Motors & Services Ltd | Wholesale & retail | 2025 |
| Andrea Pierce Probate Services Limited | Professional & scientific | 2020 |
| Andreia Ltd | Health & social care | 2024 |
| Andres Consultancy Ltd | Professional & scientific | 2024 |
| Andres Plumbing and Heating Ltd | Other services | 2015 |
| Andrew Bendall Ltd | Water & waste | 2015 |
| Andrew Bros Properties Limited | Real estate | 2024 |
| Andrew Chastney Limited | Information & communication | 2012 |
| Andrew Cunningham Arboricultural Consultant Limited | Professional & scientific | 2017 |
| Andrew England Golf Limited | Arts & recreation | 1992 |
| Andrew Harper Homes Limited | Construction | 2000 |
| Andrew James Property Solutions Limited | Real estate | 2018 |
| Andrew John Consulting Limited | Professional & scientific | 2008 |
| Andrew Lamb Associates Limited | Administrative & support | 2000 |
| Andrew Lamb Ltd | Administrative & support | 2001 |
| Andrew Minto Architecture Ltd | Professional & scientific | 2011 |
| Andrew Moreton and Company Limited | Information & communication | 2003 |
| Andrew Morgan Fine Arts Ltd | Wholesale & retail | 2025 |
| Andrew Rees Transport Ltd | Transport & logistics | 2025 |
| Andrew Shaw Limited | Financial services | 2007 |
| Andrew Trustees Ltd | Other services | 2023 |
| Andrew Tyler and SON Limited | Construction | 2012 |
| Andrew Vass Technical Services Limited | Administrative & support | 2007 |
| Andrew Wilson Partnership Limited | Professional & scientific | 2010 |
| Andrew Wray Consulting Ltd | Professional & scientific | 2025 |
| Andrews & Partners Limited | Real estate | 1928 |
| Andrews Barbershop Limited | Other services | 2026 |
| Andrews Capital South West Limited | Real estate | 2022 |
| Andrews Charitable Trust | Professional & scientific | 2017 |
| Andrews Commercial Ltd | Real estate | 2019 |
| Andrews Developments Ltd | Construction | 2026 |
| Andrews Estate Agents Limited | Real estate | 1961 |
| Andrews Letting and Management Limited | Real estate | 1981 |
| Andrews Mortgage Solutions Ltd | Financial services | 2022 |
| Andrews Paint Stripping Limited | Administrative & support | 2006 |
| Andrews Pension Trust Limited | Financial services | 1954 |
| Andrews Property UK Limited | Real estate | 2015 |
| Andrews Trading Limited | Hospitality | 2006 |
| Andrews West Street Management Limited | Real estate | 2005 |
| Andromeda PC Gaming Ltd | Wholesale & retail | 2024 |
| Andromeda Universal Ltd | Health & social care | 2015 |
| Andy Beresford Consulting Ltd | Professional & scientific | 2011 |
| Andy Cole UX Consultant Ltd | Information & communication | 2014 |
| Andy Criddle Electrical Limited | Construction | 2010 |
| Andy Griffiths Stoves & Fireplaces Limited | Construction | 2023 |
| Andy Rooke Financial Consultancy Limited | Financial services | 2009 |
| Andy Roylance Consultancy Limited | Professional & scientific | 2015 |
| Andy Scoble Consulting Limited | Professional & scientific | 2007 |
| Andy Sheppard Productions Ltd | Arts & recreation | 2012 |
| Andy Simmonds Ltd | Administrative & support | 2019 |
| Andy Street Consulting Limited | Professional & scientific | 2022 |
| Andy Webb Transport Ltd | Transport & logistics | 2014 |
| Andy's Business Support Ltd | Information & communication | 2016 |
| Andy's GAS Ltd | Wholesale & retail | 2004 |
| Andy's Logistic Services Ltd | Transport & logistics | 2019 |
| Andy’S Gutters Ltd | Administrative & support | 2023 |
| Anelia Communications Limited | Administrative & support | 2008 |
| Anemoi Renewables Limited | Professional & scientific | 2012 |
| Anersha Access Limited | Manufacturing | 2012 |
| Anexperience Festival Ltd | Arts & recreation | 2024 |
| Anford Estates Limited | Real estate | 2019 |
| Anford Homes Ltd | Construction | 2016 |
| ANG (UK) Limited | Professional & scientific | 2011 |
| ANG Magazines Ltd | Information & communication | 2011 |
| Angel Care Support Ltd | Health & social care | 2006 |
| Angel Court of Monmouth Limited | Households | 2017 |
| Angel Group (South West) Limited | Construction | 2014 |
| Angel Investors Bristol Limited | Financial services | 2023 |
| Angela Dunlop Legal Limited | Professional & scientific | 2022 |
| Angela Goudie Ltd | Education | 2022 |
| Angelababy Kitchen Ltd | Hospitality | 2025 |
| Angelas Tavern Limited | Hospitality | 2010 |
| Angelfolder Limited | Extraterritorial | 2003 |
| Angelic Beauty Bristol Limited | Other services | 2021 |
| Angelica's Hub Ltd | Health & social care | 2014 |
| Angelkay Ltd | Public administration | 2019 |
| Angell Limited | Arts & recreation | 2008 |
| Angell's Coaching and Education Ltd | Education | 2026 |
| Angels Dance Academy Ltd | Education | 2022 |
| Anghel Trans Ltd | Transport & logistics | 2018 |
| Angie Care Ltd | Administrative & support | 2022 |
| Angle Correct Ltd | Wholesale & retail | 2021 |
| Angle Digital Ltd | Information & communication | 2016 |
| Anglesea Limited | Real estate | 2008 |
| Anglin Interiors Limited | Manufacturing | 2025 |
| Anglo Energy Management Ltd | Administrative & support | 2012 |