| 182SOUTH Limited | Other services | 2023 |
| 1STOPWIND Ltd | Manufacturing | 2017 |
| 2-BIT Entertainment Company Limited | Administrative & support | 2024 |
| 212 Fabrication Limited | Construction | 2014 |
| 3 Bears Nursery Cambuslang Limited | Health & social care | 2013 |
| 3 Bears Nursery Limited | Education | 2003 |
| 3N Property Limited | Real estate | 2017 |
| 5 Stripes Solutions Ltd | Information & communication | 2026 |
| 5M Consulting Ltd | Information & communication | 2013 |
| 5M Estates Ltd | Real estate | 2023 |
| 5M Holdings Ltd | Financial services | 2021 |
| A & a Hot Food Ltd | Hospitality | 2025 |
| A & M Lettings Ltd. | Administrative & support | 2003 |
| A & M Properties (Glasgow) Limited | Real estate | 2001 |
| A Aran Property Managment Limited | Real estate | 2024 |
| A. Grays Roofing Ltd | Construction | 2015 |
| A.D. Walker Limited | Construction | 1964 |
| A.D.M Electrics Ltd | Construction | 2019 |
| A.D.S. Engineering Limited | Professional & scientific | 1993 |
| A.Daley Joinery Ltd | Construction | 2026 |
| A4 Traders Ltd | Wholesale & retail | 2023 |
| Aajs Holdings Ltd | Real estate | 2025 |
| Aandscorporatewear Limited | Wholesale & retail | 2023 |
| Aarc Services Ltd | Education | 2022 |
| Abbey Accounting & Book-Keeping Limited | Professional & scientific | 2023 |
| Abbotsinch Aviation Ltd | Arts & recreation | 2019 |
| Abby Murray Limited | Other services | 2023 |
| ACA BRC Centre Ltd | Manufacturing | 2020 |
| Academy of Gymnastics Ltd | Arts & recreation | 2020 |
| Ace Consultancy Ltd | Other services | 2024 |
| Adam Donnelly Fitness Ltd | Education | 2023 |
| Adam Go Contracting Ltd | Construction | 2025 |
| Adaugeo Properties Limited | Real estate | 2015 |
| ADF Ventures Limited | Professional & scientific | 2014 |
| Admissions Gateway Ltd | Information & communication | 2020 |
| Advanced Cleaning Ultimate Services Ltd | Administrative & support | 2025 |
| Advanced Ultrasonic Solutions Ltd | Professional & scientific | 2014 |
| Aevaspec Limited | Manufacturing | 2023 |
| Afnexa Collective Ltd | Wholesale & retail | 2025 |
| Afro Haven Limited | Wholesale & retail | 2025 |
| AH Bathrooms Ltd | Construction | 2016 |
| Ahsan Bargain Store Ltd | Wholesale & retail | 2011 |
| Airless Applications Limited | Construction | 2025 |
| AJ Properties (Scotland) Ltd. | Real estate | 2016 |
| AJ Rentals (Scotland) Ltd. | Real estate | 2016 |
| Akoj Glasgow Ltd | Construction | 2023 |
| Akuna Bay Ltd | Professional & scientific | 2022 |
| Alba Fire Protection Limited | Other services | 1987 |
| Alba Tyre Management Limited | Manufacturing | 2004 |
| Albaspey Limited | Real estate | 2008 |
| Aldhc Holdings Limited | Administrative & support | 2015 |
| Alex Fisher (Foodservice Advisor) Ltd | Professional & scientific | 2014 |
| Alex W Taylor Ltd | Professional & scientific | 2023 |
| Alfalah Corporation Ltd | Real estate | 2024 |
| Alisha Holdings Limited | Professional & scientific | 2006 |
| ALL Cleaned UP (Scotland) Limited | Administrative & support | 2011 |
| ALL Contracts Limited | Construction | 2018 |
| ALL Serv Networks Ltd | Construction | 2023 |
| Allanvale Land (Linlithgow) Limited | Construction | 2020 |
| Alleviate Limited | Arts & recreation | 2022 |
| Allstars Premier Hospitality Limited | Hospitality | 2025 |
| ALT Customer Solutions Ltd | Extraterritorial | 2017 |
| Alterum Consultancy Ltd | Financial services | 2016 |
| Alton Public House Limited | Hospitality | 2023 |
| ALTON-2025 Ltd | Hospitality | 2025 |
| Alumise Ltd | Manufacturing | 2025 |
| Alvi Traders Glasgow Limited | Wholesale & retail | 2025 |
| AMG Commissioning Services Ltd | Mining & quarrying | 2021 |
| Ammara Foods Limited | Hospitality | 2026 |
| Anchor Fitness Limited | Arts & recreation | 2016 |
| Anchor Grocers Ltd | Wholesale & retail | 2025 |
| Ancol International Gifts Limited | Real estate | 1971 |
| Anderson and SON Storage Solutions Ltd | Transport & logistics | 2025 |
| Andy Galloway (Scotland) Ltd | Administrative & support | 2016 |
| Anglo Scottish Concrete Holdings Limited | Professional & scientific | 2005 |
| Anisa Healthcare Ltd | Health & social care | 2022 |
| Apeiron Ecommerce Ltd | Wholesale & retail | 2025 |
| Aquireuk Limited | Real estate | 2022 |
| Argyll Car Sales Limited | Wholesale & retail | 2025 |
| Argyll Limited | Information & communication | 2024 |
| Arkansas Gold Mining Corp Limited | Mining & quarrying | 2014 |
| Armstrong Talent Partners Ltd | Administrative & support | 2025 |
| Arras Darts Ltd | Wholesale & retail | 2025 |
| Art & Engraving (Scot) Ltd | Arts & recreation | 2019 |
| Artmac Limited | Professional & scientific | 2017 |
| Artroyd Properties Limited | Real estate | 1987 |
| Artroyd Securities Limited | Real estate | 1975 |
| Arts and Pics Ltd | Wholesale & retail | 2023 |
| ARW Property Investments Ltd | Real estate | 2025 |
| Arxlii Ltd | Information & communication | 2026 |
| ASC Media Production Ltd | Information & communication | 2020 |
| ASG Supplies Ltd | Health & social care | 2026 |
| Aspirare Group U.K Ltd | Administrative & support | 2008 |
| Aspirare Resourcing Limited | Professional & scientific | 2023 |
| Asset Property Holdings Limited | Real estate | 1984 |
| ASV Property Solutions Limited | Construction | 2015 |
| Athletitest Ltd | Wholesale & retail | 2026 |
| Aticus Consulting Ltd | Professional & scientific | 2014 |
| Atrest Ltd | Wholesale & retail | 2025 |
| Auptician Ltd | Wholesale & retail | 2024 |