| 1ST Cabs (Fraserburgh) Ltd | Transport & logistics | 2015 |
| 1ST Group Northeast Limited | Construction | 2024 |
| 204 Montrose Street Ltd | Hospitality | 2013 |
| 3 Jays Fishing Limited | Administrative & support | 2010 |
| 3:16 AVI Ltd | Information & communication | 2023 |
| 4B Harmony Limited | Construction | 2018 |
| 4K Manufacturing Ltd | Manufacturing | 2023 |
| 4L Energy Holdings Limited | Professional & scientific | 2019 |
| 4L Energy Limited | Energy | 2009 |
| 57 Degrees North Ltd | Wholesale & retail | 2020 |
| 6 Energy Services Limited | Financial services | 2008 |
| 720 Solutions Ltd | Professional & scientific | 2023 |
| A & a West Ltd. | Agriculture & fishing | 2003 |
| A & J Watt Ltd. | Wholesale & retail | 2003 |
| A & K Enterprises (Pitsligo) Ltd | Hospitality | 2017 |
| A Gill Limited | Manufacturing | 2004 |
| A J Third Ltd | Agriculture & fishing | 2014 |
| A Wisely Flooring Ltd | Construction | 2014 |
| A.C. Access Limited | Manufacturing | 2011 |
| A.I.C. Transport Ltd. | Transport & logistics | 2000 |
| A.T.E.S. Limited | Agriculture & fishing | 1998 |
| A1 Clear Drainage & Plumbing Solutions Ltd. | Construction | 2005 |
| A2W Holdings Ltd | Financial services | 2025 |
| AA Fishing Limited | Agriculture & fishing | 2024 |
| AA Training (NE) Ltd | Education | 2020 |
| AB43 Solutions Ltd | Professional & scientific | 2016 |
| Abbeyfield Lodge Ltd | Health & social care | 2012 |
| Aberdeen & Northern Eggs Limited | Other services | 1986 |
| Aberdeenshire Mortgages Ltd | Financial services | 2015 |
| Aberdeenshire Plant Hire Limited | Administrative & support | 2025 |
| Ability FR LLP | | 2018 |
| ABR & S Properties Ltd. | Real estate | 2003 |
| AC18 Fishing Ltd | Agriculture & fishing | 2018 |
| Ace Electrical Specialists Ltd | Construction | 2020 |
| Acims Ltd | Professional & scientific | 2018 |
| Adam Tait Limited | Agriculture & fishing | 2007 |
| Adinco Group Ltd | Real estate | 2022 |
| Adreban Limited | Agriculture & fishing | 2003 |
| Afton & Mackenzie Payroll Ltd | Professional & scientific | 2022 |
| Agrimarine Ltd | Construction | 2026 |
| Agrimor Ltd | Agriculture & fishing | 2023 |
| AGS Joinery Ltd | Construction | 2015 |
| Aire Travel & Hospitality Limited | Administrative & support | 2024 |
| Airo-Tech Solutions Ltd | Manufacturing | 2013 |
| AJB Services Ltd | Professional & scientific | 2023 |
| AK Joinery & Tiling Ltd | Construction | 2023 |
| Alba GU Brath Ltd | Agriculture & fishing | 2007 |
| Albacool Refrigeration Ltd. | Agriculture & fishing | 2004 |
| Alcora Ltd | Agriculture & fishing | 2017 |
| Aldeen Ltd | Hospitality | 2019 |
| Alex Strachan Electrical Services Limited | Construction | 1995 |
| Alexander Jack (Fishing) Limited | Agriculture & fishing | 2003 |
| Alexander Maitland (Fishing) Ltd. | Agriculture & fishing | 2003 |
| Alisrose Limited | Administrative & support | 2003 |
| Allan Properties (Scotland) Ltd | Real estate | 2021 |
| Allcroft Services Ltd | Professional & scientific | 2026 |
| Alligator Inns Limited | Hospitality | 2000 |
| Alpha Garage Doors Ltd. | Wholesale & retail | 2006 |
| Altnaharra Estate Limited | Agriculture & fishing | 2002 |
| Amara Wells Ltd | Wholesale & retail | 2025 |
| Anderson Access Ltd. | Professional & scientific | 2002 |
| Anderson Contracting Services Ltd | Agriculture & fishing | 2026 |
| Andersons at NO.8 Ltd | Wholesale & retail | 2018 |
| Andoo Limited | Agriculture & fishing | 2009 |
| Andrew James Morgan Ltd | Extraterritorial | 2024 |
| Andrew MAY Building Contractors Ltd | Construction | 2020 |
| Andrew Third Limited | Agriculture & fishing | 2005 |
| Andy Murray Decorators Ltd | Construction | 2013 |
| Angela Campbell Photography Limited | Professional & scientific | 2010 |
| AOI Global Ltd | Information & communication | 2015 |
| Aone Dental Practices Limited | Health & social care | 2013 |
| Aquilon Power Solutions Ltd | Professional & scientific | 2024 |
| AR Dachaidhean Limited | Real estate | 2017 |
| ARC House Management Company Limited | Households | 2016 |
| Ardent 266 Limited | Agriculture & fishing | 2016 |
| Ariain Valve Solutions Limited | Administrative & support | 2014 |
| AS Offshore Ltd | Professional & scientific | 2025 |
| Asbs Fishing Company Ltd | Agriculture & fishing | 2020 |
| Ashara Ltd | Information & communication | 2024 |
| Asherty Contractors Limited | Construction | 2021 |
| Aspect Improvements Ltd | Construction | 2013 |
| Astec Consultants Limited | Professional & scientific | 2013 |
| Astra Fishing Ltd | Administrative & support | 2016 |
| AT Pipefitting Ltd | Manufacturing | 2025 |
| Atlas FR101 LLP | | 2018 |
| Attain Creative Ltd. | Administrative & support | 2013 |
| Auchnarie Services Ltd | Professional & scientific | 2023 |
| Audio Visual Automatics (Aberdeen) Limited | Administrative & support | 2010 |
| AWG Subsea Limited | Administrative & support | 2012 |
| AWS Fishing Company Ltd | Agriculture & fishing | 2023 |
| AZ Barber Fraserburgh Ltd | Other services | 2025 |
| Azimuth Trading Limited | Other services | 1996 |
| B.B. Christoffersen Limited | Transport & logistics | 1978 |
| Bababoos Group Ltd | Wholesale & retail | 2020 |
| Bailco Ltd | Wholesale & retail | 2023 |
| Bain Business Development & Sales Consultant Ltd | Wholesale & retail | 2025 |
| Bain Technical Services Limited | Professional & scientific | 2021 |
| Bainergy Ltd. | Extraterritorial | 2009 |
| Ballantyne Sculptures Ltd | Wholesale & retail | 2017 |
| Balmara Ltd | Agriculture & fishing | 2023 |