| 000AMS Textiles Ltd | Wholesale & retail | 2025 |
| 1ST Class Garden Services Ltd | Administrative & support | 2014 |
| 2294 Ltd | Wholesale & retail | 2024 |
| 3 Dimensional Concepts Ltd | Professional & scientific | 2013 |
| 3 R Recycling Ltd | Water & waste | 2015 |
| 4 IT Matters Ltd | Information & communication | 2010 |
| 4X4 Experts Ltd | Wholesale & retail | 2020 |
| 6C Films | Information & communication | 2019 |
| 72-25 Holdings Ltd | Construction | 2026 |
| 85 Henderson Street Ltd | Wholesale & retail | 2016 |
| A J Ventilation Services Ltd | Manufacturing | 2022 |
| A M Fagan Estate Agents Ltd | Real estate | 2015 |
| A&O Mechanical Limited | Professional & scientific | 2025 |
| A&T Products Limited | Wholesale & retail | 2025 |
| A. Gray & Sons Ltd. | Wholesale & retail | 2002 |
| A.D. Training and Development Ltd | Education | 2023 |
| A.F SVS Limited | Wholesale & retail | 2019 |
| A.G.S. (Steel Erectors) Holdings Limited | Financial services | 2024 |
| A.G.S. (Steel Erectors) Limited | Construction | 2001 |
| AA & Co Traders Limited | Wholesale & retail | 2022 |
| AA Indian Takeaway Ltd | Hospitality | 2023 |
| AAA Coatings Ltd | Wholesale & retail | 2018 |
| Abacus ALL Trades Ltd | Other services | 2020 |
| ABC Chon-Ji Ltd | Arts & recreation | 2017 |
| AC Accident Repairs (Scotland) Ltd | Wholesale & retail | 2019 |
| AC P Maintenance Ltd | Construction | 2025 |
| Ac's Beauty Store Limited | Wholesale & retail | 2022 |
| Academy Practice Limited | Health & social care | 2010 |
| Access Services (Scotland) Ltd | Education | 2016 |
| Accr Construction Ltd | Construction | 2017 |
| Ad.X International Exhibition & Display Ltd. | Professional & scientific | 1998 |
| ADK Letting Agency Ltd | Real estate | 2021 |
| Advanced Welding Projects Limited | Other services | 2010 |
| Aeaas Contractors Limited | Construction | 2025 |
| Aebnetworks Ltd | Information & communication | 2025 |
| Afzal Limited | Wholesale & retail | 2025 |
| AG Roofing & Cladding Services Ltd | Construction | 2010 |
| AGN Energy Ltd | Construction | 2023 |
| AH Design Ltd | Information & communication | 2023 |
| AH Invest Ltd | Households | 2024 |
| Ahagan Ltd | Professional & scientific | 2026 |
| Ailsa Electrical Services Ltd | Construction | 2025 |
| Aingealag Limited | Information & communication | 2014 |
| Airdrie Tyres Limited | Wholesale & retail | 2016 |
| Aj's Marble X Limited | Construction | 2026 |
| AJL Management & Governance Ltd | Professional & scientific | 2026 |
| AJM Energy Ltd | Wholesale & retail | 2025 |
| AJR Bodyshop Limited | Wholesale & retail | 2024 |
| Al-Taqwa Halal Meat Ltd | Wholesale & retail | 2025 |
| ALB Consulting Ltd | Professional & scientific | 2024 |
| ALB Home Services Ltd | Construction | 2025 |
| Albannach Einnseanair Ltd. | Other services | 2014 |
| Alber Decorating Ltd | Construction | 2023 |
| Albion Rovers Football Club, Ltd. (the) | Arts & recreation | 1919 |
| Albion Wines & Spirits (Glasgow, Scotland) Limited | Professional & scientific | 1993 |
| Alchemy Recruiting Ltd | Administrative & support | 2025 |
| Alien Burgers Limited | Hospitality | 2024 |
| Alistair Duncan (Glasgow Scotland) Limited | Professional & scientific | 1994 |
| Alistair Duncan Limited | Professional & scientific | 1994 |
| Alistair Forfar Limited | Professional & scientific | 1991 |
| ALL Clear Solutions Ltd | Water & waste | 2026 |
| ALL NU Trades Ltd | Administrative & support | 2024 |
| Allbel Bar Limited | Hospitality | 2024 |
| Allied Timber Manufacturing Limited | Manufacturing | 1985 |
| Almac Metering Ltd | Construction | 2025 |
| Alminha Limited | Transport & logistics | 2025 |
| Almuhtadi International Ltd | Wholesale & retail | 2025 |
| Alpaken Limited | Professional & scientific | 2017 |
| Alpha Solutions Consultancy Ltd | Professional & scientific | 2025 |
| Amadel Ltd | Transport & logistics | 2026 |
| Amarco Estates Ltd | Real estate | 2020 |
| Amarco NL Ltd | Real estate | 2023 |
| Amari Casa Ltd | Wholesale & retail | 2021 |
| Amazing Grace Bible Church Global Ltd | Other services | 2024 |
| Amazing.Interiors Ltd | Wholesale & retail | 2026 |
| Ambient Enterprises Ltd | Administrative & support | 2026 |
| American Chillies Ltd | Hospitality | 2014 |
| AMG Barbers Ltd | Other services | 2019 |
| AMY Scaffold Ltd | Construction | 2026 |
| ANA Controls Ltd | Professional & scientific | 2012 |
| Anchor GAS Services Limited | Construction | 2011 |
| Andrew GOW Consultancy Ltd | Professional & scientific | 2024 |
| Angel AJL Limited | Real estate | 2023 |
| Angel Nails Coatbridge Limited | Other services | 2021 |
| Angela Ward Ltd | Public administration | 2021 |
| Angus Dundee (Scotland) Limited | Professional & scientific | 1990 |
| Animation Scotland Limited | Information & communication | 2022 |
| Annanpark Partnership | | 1999 |
| Anzil Limited | Information & communication | 2025 |
| AP Electrical Consultants Limited | Construction | 2025 |
| Apex ALL Trades Limited | Construction | 2011 |
| Approved Dealer Assured Motors (A.D.A.M) Ltd | Wholesale & retail | 2025 |
| April 20 Limited | Information & communication | 2004 |
| Aqua Electrical & Mechanical Water Engineering Services (Scotland) Ltd | Professional & scientific | 2017 |
| Aqua Fleet (Bosch) Limited | Wholesale & retail | 2022 |
| Aqua Water Services Ltd | Professional & scientific | 2025 |
| Arden Global Solutions Ltd | Professional & scientific | 2024 |
| Ardent Decorating Limited | Construction | 2015 |
| Argyll Spirits Co Ltd | Manufacturing | 2020 |
| Ariseclo Ltd | Manufacturing | 2025 |