| Amplus Energy Services Limited | Mining & quarrying | 2008 |
| AMR Khalil Ltd | Health & social care | 2020 |
| AMR Well Intervention Services Ltd | Administrative & support | 2010 |
| Amrutha Retail Limited | Wholesale & retail | 2021 |
| AMS Buildings Ltd | Construction | 2022 |
| AMS Caspian Ltd | Professional & scientific | 2024 |
| AMS Consultancy Services Limited | Professional & scientific | 2024 |
| AMS Global Group Holdings Limited | Financial services | 2026 |
| AMS Global Group Ltd | Professional & scientific | 2012 |
| AMS Global Safety Ltd | Extraterritorial | 2020 |
| AMS Group (Scotland) Limited | Administrative & support | 2019 |
| AMS Group (Spain) Limited | Professional & scientific | 2026 |
| AMS Group International Limited | Financial services | 2023 |
| AMS Group Investments Limited | Financial services | 2023 |
| Amsis Aviation Limited | Transport & logistics | 2019 |
| Amsis Limited | Professional & scientific | 2006 |
| Amsterdam Trend LP | | 2014 |
| AMT Intercargo UK Limited | Transport & logistics | 1997 |
| Amuse Restaurant Aberdeen Limited | Hospitality | 2022 |
| AMY Strath Ltd | Professional & scientific | 2024 |
| AMZ Activities Group Limited | Health & social care | 2025 |
| AMZ Properties Limited | Real estate | 2004 |
| AN Noor Takeaway Ltd | Hospitality | 2013 |
| Anaar Aberdeen Ltd | Wholesale & retail | 2023 |
| Anaka Limited | Other services | 2026 |
| Anake Co LLP | | 2012 |
| Analysis Logic Limited | Manufacturing | 2014 |
| Analytics Resolution Consults Ltd | Professional & scientific | 2025 |
| Analytiverse Ltd | Information & communication | 2025 |
| Anamaria Tailoring Design & Fashion Ltd | Manufacturing | 2020 |
| Anark Property Ltd | Real estate | 2026 |
| Anatec EOT Trustees Limited | Financial services | 2022 |
| Anatec Limited | Information & communication | 2001 |
| Anatolia Aberdeen Ltd | Hospitality | 2022 |
| ANB Seen Ltd | Professional & scientific | 2021 |
| Anca Cluaran Ltd | Real estate | 2024 |
| Ancala (Scot) LP | | 2018 |
| Anchans Authentics Ltd | Hospitality | 2016 |
| Anchor Point Access Ltd | Mining & quarrying | 2026 |
| Anchor Point Offshore Ltd | Professional & scientific | 2025 |
| Anchor Wealth Consulting Ltd | Financial services | 2023 |
| Andalusian Taste Ltd | Wholesale & retail | 2018 |
| Andcam Ltd. | Construction | 2004 |
| Andersen Aviation Group Ltd | Transport & logistics | 2016 |
| Anderson & Cluness Limited | Construction | 2002 |
| Anderson & Spence Limited | Wholesale & retail | 1997 |
| Anderson Anderson & Brown Audit LLP | | 2018 |
| Anderson Anderson & Brown Limited | Professional & scientific | 2023 |
| Anderson Anderson & Brown Wealth Limited | Professional & scientific | 2021 |
| Anderson Buchan Properties Limited | Real estate | 2000 |
| Anderson Morrice Ltd | Other services | 2026 |
| Anderson QC Inspection Services Limited | Professional & scientific | 2014 |
| Anderson Technical Limited | Professional & scientific | 2025 |
| Andersonbain LLP | | 2012 |
| Andersonbain Trustees Limited | Administrative & support | 2022 |
| Andoughs Ltd | Hospitality | 2025 |
| Andrew Bruce Fire Protection Ltd | Construction | 2017 |
| Andrew Ingram Limited | Wholesale & retail | 2025 |
| Andrew Mcrobb Limited | Construction | 1932 |
| Andrew Polson Limited | Professional & scientific | 2013 |
| Andrew Rawling Solutions Limited | Professional & scientific | 2007 |
| Andrew Sage Art & Entertainment Limited | Manufacturing | 2005 |
| Andrew's Homes (Aberdeen) Limited | Real estate | 1966 |
| Andrew's R Recovery Ltd | Other services | 2024 |
| Andrima UK Ltd | Professional & scientific | 2009 |
| Andron Contract Services Limited | Administrative & support | 1982 |
| Andy Jenkins Limited | Information & communication | 2015 |
| Andy MO Photography Ltd | Professional & scientific | 2017 |
| Andy Reid Joinery Limited | Construction | 2026 |
| Andy Ross Ltd | Arts & recreation | 2011 |
| Andyanderson Ltd | Construction | 2023 |
| Aner Limited | Wholesale & retail | 2026 |
| ANF Offshore Ltd | Professional & scientific | 2022 |
| ANG Renovations Ltd | Construction | 2024 |
| Angels & Co (Aberdeen) Limited | Education | 2006 |
| Angelsmask Limited | Hospitality | 2024 |
| Anglerfish Consulting Ltd | Real estate | 2013 |
| Anglerfish Property Management Ltd | Real estate | 2023 |
| Anglo Scottish (Management Services) Limited | Wholesale & retail | 1989 |
| Angus Construction Developments Ltd | Construction | 2020 |
| Angus Inns Ltd | Hospitality | 2018 |
| Angus Investments and Resources Limited | Financial services | 2022 |
| Angus Macleod Ltd | Health & social care | 2025 |
| Angus Wines Limited | Wholesale & retail | 2012 |
| Angusfield Property Company Limited | Real estate | 1978 |
| Animus Concia Limited | Wholesale & retail | 2015 |
| Ankor Foods LP | | 2014 |
| ANM Electrical Engineering Ltd | Professional & scientific | 2018 |
| ANN Cadzow Limited | Health & social care | 2010 |
| ANN Mcrobb Associates Ltd | Professional & scientific | 2012 |
| Ann'C Ltd | Wholesale & retail | 2025 |
| Ann-Dent Limited | Health & social care | 2009 |
| Anna Dewhirst Limited | Wholesale & retail | 2022 |
| Anna Piasecka Ltd | Professional & scientific | 2024 |
| Annaheslop Limited | Administrative & support | 2013 |
| Annai Mary Private Limited | Wholesale & retail | 2023 |
| Annapearl Limited | Wholesale & retail | 2025 |
| Anne Bones Limited | Health & social care | 2018 |
| Anne Unique Limited | Hospitality | 2023 |
| Annie Mo's Ltd. | Wholesale & retail | 2007 |