| Ally Crawford Electrical Services Limited | Construction | 2010 |
| Alona Access Ltd | Professional & scientific | 2018 |
| Alturo Limited | Information & communication | 2022 |
| AMD Agri Ltd | Agriculture & fishing | 2026 |
| Amnesia Limited | Arts & recreation | 2023 |
| AMS Dwellings Ltd | Real estate | 2024 |
| AMT Technical Services Ltd | Manufacturing | 2023 |
| Amtech Systems Ltd. | Professional & scientific | 2003 |
| Andersmore Limited | Administrative & support | 2015 |
| Andersons House Furnishers (Inverurie) Limited | Wholesale & retail | 1999 |
| Andrew Bruce Flooring Limited | Wholesale & retail | 2017 |
| Andrew Ogilvie & Partners Ltd | Mining & quarrying | 2015 |
| Animus Technology Limited | Mining & quarrying | 2014 |
| ANT Networks Limited | Information & communication | 2014 |
| Aodhan Consultancy Ltd | Professional & scientific | 2024 |
| Aoraki Designs Ltd | Mining & quarrying | 2017 |
| AP Innovations Ltd | Professional & scientific | 2016 |
| APC Group Limited | Administrative & support | 2011 |
| Apex Homes Scotland Ltd | Construction | 2021 |
| App Developers Ltd | Information & communication | 2016 |
| AR Precision Ltd | Wholesale & retail | 2025 |
| Ar-El Workshop Equipment Ltd. | Wholesale & retail | 2000 |
| Aragon Partners Limited | Administrative & support | 2025 |
| Arconnon Motors Limited | Wholesale & retail | 2002 |
| Arctos Technologies Ltd | Professional & scientific | 2023 |
| Ardeevin Ltd | Professional & scientific | 2024 |
| Arden (Scotland) Ltd | Wholesale & retail | 2021 |
| Argent Training Limited | Administrative & support | 2010 |
| Armstrong Livestock Ltd | Agriculture & fishing | 2021 |
| Arniston Truck Sales Ltd. | Information & communication | 2018 |
| ARX Safety Ltd | Professional & scientific | 2024 |
| ASA Aberdeen Ltd | Hospitality | 2023 |
| Ascend Dynamics Ltd | Professional & scientific | 2025 |
| Asknish Design Ltd | Professional & scientific | 2019 |
| Aspicio Enterprises Limited | Wholesale & retail | 2009 |
| Aspinall Financial Planning Limited | Financial services | 2020 |
| Aspire Aesthetics Limited | Health & social care | 2009 |
| Assigned Accounting Ltd | Professional & scientific | 2025 |
| ATC Consultants Ltd | Professional & scientific | 2026 |
| Atgo Design Limited | Administrative & support | 2014 |
| Atlas Computer Solutions Limited | Information & communication | 2010 |
| ATU Consultancy Ltd. | Professional & scientific | 1997 |
| Auchnieve Engineering Services Limited | Professional & scientific | 2022 |
| Austringer and Co Ltd | Wholesale & retail | 2022 |
| Auto Centre Inverurie Limited | Wholesale & retail | 2004 |
| Autocare Turriff Ltd | Wholesale & retail | 2015 |
| Avenue 88 Ltd | Real estate | 2023 |
| Avera Store Ltd | Wholesale & retail | 2026 |
| Averon Engineering Limited | Manufacturing | 1992 |
| AW Window Cleaning Ltd | Administrative & support | 2025 |
| Awardplain Limited | Professional & scientific | 2001 |
| AWT Engineering Ltd | Professional & scientific | 2013 |
| Axess Corrosion Ltd | Professional & scientific | 2022 |
| Ayonra Ltd | Information & communication | 2026 |
| B Luxe Property Ltd | Real estate | 2026 |
| B Milne Engineering Ltd | Professional & scientific | 2025 |
| B Turnbull Engineering Ltd | Professional & scientific | 2023 |
| B.T.N Project Services Ltd | Professional & scientific | 2013 |
| B4 Property Limited | Construction | 2025 |
| Backhouse Office Ltd | Administrative & support | 2025 |
| Bains Coaches Limited | Extraterritorial | 1988 |
| Balquhain Farming Limited | Agriculture & fishing | 2011 |
| Bankhead Resources Ltd | Professional & scientific | 2012 |
| Barefoot Performance Ltd | Agriculture & fishing | 2017 |
| Barra Bronzes Limited | Agriculture & fishing | 2020 |
| Barra Castle Ltd | Administrative & support | 2016 |
| Barrie Mccann Ltd | Administrative & support | 2025 |
| Basson Engineering & Consultancy Services Ltd | Professional & scientific | 2024 |
| Bateleur Apparel Limited | Wholesale & retail | 2018 |
| Battz Ltd | Construction | 2025 |
| BD Autopoint Ltd | Wholesale & retail | 2017 |
| BD Property Makeovers Ltd | Construction | 2021 |
| BE Traist Holdings Limited | Real estate | 2025 |
| Bearing Pro Tools Limited | Administrative & support | 2019 |
| Beechgrove Avenue Ltd | Hospitality | 2025 |
| Bell Air Refrigeration Limited | Manufacturing | 2025 |
| Belle VEE Beauty Lounge Ltd | Other services | 2026 |
| BEN Wiles EP Ltd | Health & social care | 2024 |
| Bennachie Eggs Limited | Wholesale & retail | 2025 |
| Bennachie Hotel Limited | Hospitality | 2021 |
| Bennachie Limited | Wholesale & retail | 2023 |
| Bennachie Lodge Limited | Hospitality | 2014 |
| Bennview IT Ltd | Information & communication | 2022 |
| Bernard Commercial Ltd | Real estate | 2025 |
| Berry Gems London Ltd | Wholesale & retail | 2026 |
| Berryhill Developments Ltd | Construction | 2024 |
| Berryhill Management Company 1 Limited | Administrative & support | 2014 |
| Best UK Store Ltd | Wholesale & retail | 2026 |
| Betdula Pendula Limited | Wholesale & retail | 2021 |
| Bethelnie Limited | Professional & scientific | 2015 |
| Bewick Child Development Services Limited | Education | 2015 |
| BF Orpington Logistic Ltd | Transport & logistics | 2021 |
| BGL Oilservices Limited | Education | 2013 |
| Bhouz Properties Ltd | Real estate | 2020 |
| Bidwell Surgical Limited | Administrative & support | 2011 |
| Big Daddys Street Food Ltd | Hospitality | 2026 |
| Big RIG Rugby Management Limited | Education | 2025 |
| Bilbo Trading Limited | Financial services | 2023 |
| Bill Boak Engineering Ltd | Professional & scientific | 2011 |
| Billy Nicol Renovations Ltd | Construction | 2021 |