| 1111 Solutions Ltd | Manufacturing | 2023 |
| 1440 Energy Services Ltd | Mining & quarrying | 2023 |
| 2 Way Leisure Ltd | Administrative & support | 2016 |
| 24X2 Investments Limited | Financial services | 2003 |
| 2G Joinery Limited | Construction | 2013 |
| 3 Tiers Barnquee Limited | Other services | 2022 |
| 365 Fishing Services Ltd | Agriculture & fishing | 2018 |
| 3C Training Solutions (PHD) Ltd | Education | 2019 |
| A & G Joiners Ltd | Construction | 2018 |
| A & J Business Services Ltd. | Administrative & support | 2006 |
| A & R Fishing Ltd | Agriculture & fishing | 2018 |
| A & S Buchan Welding Support Ltd | Other services | 2013 |
| A & W Wilson Limited | Transport & logistics | 2005 |
| A D Adam & Sons Property Developement Ltd | Construction | 2019 |
| A H Supervisor Ltd | Energy | 2016 |
| A J Florence (Engineering) Limited | Agriculture & fishing | 2010 |
| A J Smith Properties Ltd | Real estate | 2016 |
| A M Irvine Slating Ltd. | Construction | 2003 |
| A P Noble Limited | Agriculture & fishing | 2016 |
| A Reid Fishing Services Ltd | Agriculture & fishing | 2020 |
| A. & L. Craig & Company | | 1997 |
| A.R.N. Energy Limited | Real estate | 2009 |
| A.S. Buchan Ltd. | Agriculture & fishing | 2002 |
| AB Buchan Ltd | Hospitality | 2026 |
| AB Heating Ltd. | Agriculture & fishing | 2004 |
| AB Holdings (Inverurie) Ltd | Wholesale & retail | 2018 |
| AB Holdings (Peterhead) Ltd | Wholesale & retail | 2018 |
| AB Holdings (Schoolhill) Ltd | Wholesale & retail | 2018 |
| Abalayden Fishing Ltd | Agriculture & fishing | 2023 |
| Aberdeenshire Child & Youth Support Services Ltd | Education | 2022 |
| Aberdeenshire Christmas Tree Adoption Ltd | Agriculture & fishing | 2024 |
| Aberdeenshire Commercial and Procurement Advisory Limited | Professional & scientific | 2023 |
| Aberdon Property Maintenance Ltd | Construction | 2026 |
| ABI Webster at Webster Designs Limited | Extraterritorial | 2024 |
| AC Cladding Ltd | Construction | 2025 |
| Ac/Dc Northeast Limited | Construction | 2026 |
| Acorn Fishing Limited | Agriculture & fishing | 2017 |
| Adanah Properties Ltd | Real estate | 2025 |
| Aden House BED and Breakfast Limited | Hospitality | 2020 |
| Aero M Ltd | Agriculture & fishing | 2017 |
| Afterglow Aesthetics Ltd | Other services | 2019 |
| Agrigas Limited | Agriculture & fishing | 2015 |
| Aj's Gardening Services Ltd | Other services | 2016 |
| Ajbs Fishing Ltd. | Agriculture & fishing | 2010 |
| Ajham Subsea Limited | Other services | 2013 |
| AJL Rental Properties Ltd | Real estate | 2025 |
| AJS Contract Cars Ltd. | Transport & logistics | 2009 |
| AKL Limited | Administrative & support | 2002 |
| AKL Market Services Ltd. | Other services | 2012 |
| AKL Transport Ltd | Transport & logistics | 2015 |
| Aktepe Ltd | Wholesale & retail | 2011 |
| AKZ Electrical Services Ltd | Construction | 2025 |
| AL Baraqah Estates Ltd | Real estate | 2024 |
| AL Mumtaz Scot Ltd | Administrative & support | 2023 |
| Alan Camley Limited | Construction | 2005 |
| Alan Stuart (Builders) Ltd | Construction | 2013 |
| Alba Office Cleaning Ltd. | Administrative & support | 2003 |
| Albury Process Engineering Limited | Professional & scientific | 2016 |
| Alert Fishing Partnership | | 2006 |
| Alex Fowlie Limited | Energy | 2012 |
| Alex. Aiken & SON Ltd. | Wholesale & retail | 1996 |
| Alexander Duthie & Sons (Holdings) Limited | Financial services | 2021 |
| Alexander Duthie & Sons Group Limited | Financial services | 2021 |
| Alexander Walker (Peterhead) Ltd. | Agriculture & fishing | 2008 |
| Alexander Watt Limited | Administrative & support | 2003 |
| Alexanders (Kirkburn Mills) Limited | Manufacturing | 2011 |
| Alfie Mair Limited | Hospitality | 2022 |
| ALI Keith Electrical Ltd | Construction | 2025 |
| ALL Squared Properties Limited | Real estate | 2025 |
| Allsorts Joinery Limited | Manufacturing | 2024 |
| Almka Brand Ltd | Wholesale & retail | 2021 |
| Aloi Ltd. | Professional & scientific | 2009 |
| Alperen Barber Ltd | Other services | 2021 |
| Alvah Energy Ltd. | Energy | 2013 |
| AM Campbell (UK) Ltd. | Construction | 2000 |
| AMC Inspection Limited | Professional & scientific | 2011 |
| AMD Techserv Limited | Construction | 2003 |
| AMG Windows and Doors Ltd | Construction | 2014 |
| Amity Fish Co Limited | Agriculture & fishing | 2004 |
| Amor Fati Technology Ltd | Information & communication | 2021 |
| AMS Security Ltd | Administrative & support | 2025 |
| AN Niven Ltd | Construction | 2019 |
| Anchored 17 Ltd | Agriculture & fishing | 2026 |
| Anderson Contracts (Ellon) Limited | Other services | 2013 |
| Anderson Fishing Services Ltd | Agriculture & fishing | 2017 |
| Anderson Marine (Scotland) Limited | Manufacturing | 2014 |
| Andola Logistics Ltd | Mining & quarrying | 2012 |
| Andrew Buchan Ltd | Mining & quarrying | 2013 |
| Andromeda Fishing Limited | Agriculture & fishing | 2022 |
| Angela Thain Technical Services Ltd | Professional & scientific | 2016 |
| Aperio Inspection Ltd | Professional & scientific | 2026 |
| Apex Church Peterhead | Other services | 2003 |
| Aphelios Property Group Ltd | Real estate | 2023 |
| App-Rentice Ltd | Education | 2026 |
| Apus Digital Ltd | Information & communication | 2021 |
| APX Technical Services Ltd. | Other services | 2004 |
| Aqueous Beauty Limited | Other services | 2012 |
| Arando's German Donner Pizza Ltd | Hospitality | 2023 |
| Arcturus INS167 LLP | | 2014 |
| Arcus Design Ltd | Professional & scientific | 2017 |