| AL Safwa for Investment Ltd | Other services | 2024 |
| AL Trading LP | | 2015 |
| Al-Affan Limited | Health & social care | 2022 |
| Al-Aqeel Group Ltd | Other services | 2024 |
| Al-Berties Limited | Hospitality | 2020 |
| Al-Danu LP | | 2018 |
| Al-Div Limited | Hospitality | 2020 |
| Al-Fav Limited | Hospitality | 2020 |
| Al-Go Couriers Ltd | Transport & logistics | 2019 |
| Al-Hussain Curry Wala Ltd | Hospitality | 2024 |
| Al-Hussain Super Market Ltd | Wholesale & retail | 2023 |
| Al-Medina Halal Meats Ltd | Wholesale & retail | 2023 |
| Al-Noor (Scotland) Ltd | Real estate | 2014 |
| Al-Qaim Logistics Ltd | Transport & logistics | 2025 |
| Al-Shafah Ltd | Wholesale & retail | 2014 |
| Al-Taste Limited | Hospitality | 2020 |
| Al-Vob Limited | Hospitality | 2020 |
| Al-Vow Limited | Hospitality | 2020 |
| Al-Yafeai for Trading and Investment Ltd | Wholesale & retail | 2024 |
| AL05MAC Ltd | Real estate | 2014 |
| ALA Consultants (Edinburgh) Ltd | Real estate | 2015 |
| ALA Prop Holdings Ltd | Real estate | 2023 |
| Alabaster International LP | | 2013 |
| Alaburrito Ltd | Hospitality | 2023 |
| Alacrity Business L.P. | | 2017 |
| Alagoas LP | | 2013 |
| Alagom Ltd. | Real estate | 2019 |
| Alainn Tours Teoranta UK Limited | Administrative & support | 2024 |
| Alam Khanam Enterprises Limited | Hospitality | 2026 |
| Alamanta Group LP | | 2016 |
| Alamanta Holding LP | | 2017 |
| Alamason Ltd | Wholesale & retail | 2026 |
| Alameda L.P. | | 2012 |
| Alamein Group LP | | 2016 |
| Alamite Ventures LP | | 2013 |
| Alamper Group LP | | 2016 |
| Alan Car Clinic Ltd | Wholesale & retail | 2026 |
| Alan HAY Consulting Limited | Information & communication | 2024 |
| Alan Kinghorn & SON Plumbing & Heating Ltd | Construction | 2016 |
| Alan Morrison Trading Limited | Other services | 2006 |
| Alan Murray Offshore Limited | Transport & logistics | 2012 |
| Alan Somerville Ltd | Professional & scientific | 2025 |
| Alan Trade LP | | 2017 |
| Alan Watson Ltd | Financial services | 2014 |
| Alan White Golf Professional Limited | Administrative & support | 2006 |
| Alanco Business LP | | 2014 |
| Aland Forwarding LP | | 2014 |
| Alano Soft LP | | 2016 |
| Alanta Commerce LP | | 2014 |
| Alantis Company LP | | 2013 |
| Alarico LP | | 2014 |
| Alarm Smart Analytics Ltd | Information & communication | 2026 |
| Alarton Trade LP | | 2015 |
| Alasar Corp. LP | | 2015 |
| Alasar Impex LP | | 2014 |
| Alastair Campbell and Company Limited | Professional & scientific | 1901 |
| Alastair J Fraser Limited | Wholesale & retail | 2012 |
| Alastair SIM Consultancy Ltd | Professional & scientific | 2025 |
| Alastair.Electrician Ltd | Extraterritorial | 2024 |
| Alaxi Limited | Construction | 2018 |
| Alayna Properties Ltd | Real estate | 2021 |
| Alba Beverage Company Ltd. | Hospitality | 1998 |
| Alba Business Link & Exchange Limited | Hospitality | 2003 |
| Alba Construct Ltd | Professional & scientific | 2023 |
| Alba Global Limited | Hospitality | 2010 |
| Alba Hire & Sales Ltd. | Wholesale & retail | 1993 |
| Alba LAS Pensions Management Limited | Extraterritorial | 1976 |
| Alba Life Trustees Limited | Financial services | 1956 |
| Alba Turf Equipment Limited | Information & communication | 2008 |
| Albahumber Offshore Ltd | Manufacturing | 2018 |
| Albaloch Limited | Professional & scientific | 2000 |
| Alban Wine Limited | Other services | 2018 |
| Albany Blenders Limited | Professional & scientific | 1994 |
| Albany Business Centres Limited | Real estate | 1985 |
| Albany HR Limited | Administrative & support | 2017 |
| Albany Lettings Ltd. | Real estate | 2005 |
| Albany Security Company Edinburgh Limited | Administrative & support | 2016 |
| Albany Street Limited | Real estate | 2018 |
| Albany Ventures Co-Invest Limited Partnership | | 2002 |
| Albany Ventures Fund III Limited Partnership | | 2002 |
| Albany Ventures Fund III SP Limited Partnership | | 2002 |
| Albaricoque LP | | 2003 |
| Albatross 2011 Ltd | Extraterritorial | 2011 |
| Albatross Capital LP | | 2025 |
| Albelandy Limited | Administrative & support | 2020 |
| Albeniz LP | | 2002 |
| Alber Alliance LP | | 2016 |
| Albert Business Centre Ltd | Households | 2016 |
| Albert Miller (Linoleums) Limited | Wholesale & retail | 1960 |
| Alberta Capital LP | | 2015 |
| Alberta Corp. LP | | 2016 |
| Alberto International L.P. | | 2009 |
| Alberton Capital LP | | 2015 |
| Albion Artspaces Ltd | Real estate | 2024 |
| Albion Automotive Limited | Manufacturing | 1993 |
| Albion Business Centre Ltd | Real estate | 2022 |
| Albion Direct LP | | 2013 |
| Albion Early-Stage Ventures FP LP | | 2026 |
| Albion Early-Stage Ventures GP (Scots) LLP | | 2026 |
| Albion Equity Limited | Hospitality | 1995 |