| Airth Caterers Ltd | Hospitality | 2018 |
| Airth Station Cattery Ltd | Other services | 2013 |
| Airtight Testing Scotland Limited | Construction | 2010 |
| AJ Contracts (Falkirk) Ltd | Construction | 2016 |
| AJ Falkirk Limited | Hospitality | 2024 |
| AJ Motors (Falkirk) Ltd. | Wholesale & retail | 2026 |
| AJH Foods Ltd | Hospitality | 2024 |
| AJH Investments Management Ltd | Wholesale & retail | 2020 |
| AJR Investments Group Ltd | Administrative & support | 2025 |
| AK Arsov Logistics Ltd | Transport & logistics | 2026 |
| AK Asset Finance Ltd | Financial services | 2025 |
| AK Food Services Scotland Limited | Hospitality | 2025 |
| AK Pixal Labs Ltd | Wholesale & retail | 2025 |
| Akaa Services Limited | Hospitality | 2025 |
| Akhtar Property Holdings Ltd | Financial services | 2025 |
| Akoy Hand Car Wash Ltd | Administrative & support | 2025 |
| AL Commercial Properties Ltd | Real estate | 2024 |
| Alan Motors (Carronshore) Ltd. | Wholesale & retail | 2019 |
| Alchemist Learning and Development Limited | Information & communication | 2006 |
| Alexander Ross Holdings Limited | Professional & scientific | 1987 |
| Alexander Young & Sons Limited | Real estate | 1936 |
| Alexandra Courier Ltd | Transport & logistics | 2023 |
| ALG Sports Consultancy Ltd. | Professional & scientific | 2026 |
| ALI Bukhsh Limited | Wholesale & retail | 2023 |
| ALI Properties Scotland Limited | Real estate | 2025 |
| Alison Meechan Mortgage & Protection Adviser Ltd | Financial services | 2023 |
| Alistair Patterson Ltd | Water & waste | 2017 |
| Alistair Walker Whisky Company Ltd | Wholesale & retail | 2018 |
| Alkhas Ltd | Transport & logistics | 2025 |
| ALL Truck Commercial Vehicle Repairs Ltd | Wholesale & retail | 2012 |
| ALL Tyred OUT Limited | Wholesale & retail | 2011 |
| Allan Kane Auto Electrics Ltd | Wholesale & retail | 2014 |
| Allan Rushford HSE Services Ltd | Other services | 2018 |
| Allans Antiques of Falkirk Ltd. | Other services | 2018 |
| Allbin Properties Ltd | Real estate | 2023 |
| Alliance Boots Scottish Limited Partnership | | 2012 |
| Alliance Concrete Structures Ltd | Construction | 2024 |
| Allied Engineering Services Ltd | Professional & scientific | 2023 |
| Allied International UK Ltd. | Manufacturing | 1978 |
| Allison Building Supplies Limited | Wholesale & retail | 2021 |
| Alloa Shed Centre Ltd | Administrative & support | 2017 |
| Allterrain Service Solutions Ltd | Wholesale & retail | 2026 |
| Almondhall Limited | Construction | 2025 |
| Almondwood Properties Ltd | Real estate | 2025 |
| ALMOST2CLEAN Ltd | Other services | 2017 |
| Alpine Advanced Access Limited | Mining & quarrying | 2018 |
| Alpine Roofing (1995) Ltd | Construction | 2026 |
| ALT Event Services Ltd | Arts & recreation | 2026 |
| Alton Farm Retreats Ltd | Hospitality | 2025 |
| Altruistic (Scotland) Limited | Professional & scientific | 2020 |
| AM Bodach Ltd | Professional & scientific | 2025 |
| AM Industrial Coatings Ltd | Construction | 2014 |
| AM Marketing Services Ltd | Professional & scientific | 2025 |
| AM Properties (Falkirk) Ltd. | Real estate | 2014 |
| Amad Project Services Ltd | Professional & scientific | 2024 |
| Amanda C Limited | Other services | 2012 |
| Amkr Property Ltd | Real estate | 2026 |
| Amore Ceremonies Ltd | Other services | 2019 |
| Amos Beech Holdings Limited | Financial services | 2026 |
| Amos Beech Limited | Wholesale & retail | 2011 |
| AMOS1 Ltd | Transport & logistics | 2024 |
| AMR Garden Services Limited | Other services | 2024 |
| Amsmith Ltd. | Professional & scientific | 2024 |
| AN RF Design Limited | Professional & scientific | 2019 |
| Anand Nand Ltd | Administrative & support | 2025 |
| Anderson Black Real Estate Limited | Real estate | 2022 |
| Anderson Roofing and SON Ltd | Construction | 2023 |
| Anderson Stewart Consulting Limited | Administrative & support | 2013 |
| ANDREI81 Limited | Transport & logistics | 2025 |
| Andy Duffy Plumbing & Heating Limited | Construction | 2012 |
| Andy Martin Construction Ltd | Construction | 2025 |
| Anglo Scottish Biosolids Ltd | Agriculture & fishing | 2014 |
| Anglo Scottish Recycling Company Limited | Water & waste | 2013 |
| Angus Braidwood & SON Limited | Wholesale & retail | 1988 |
| Angus Kyle Limited | Real estate | 2024 |
| Angus ORR Property Preservation Ltd. | Construction | 2005 |
| Animal Nurture Ltd | Agriculture & fishing | 2026 |
| Annie's Snack Van Ltd | Hospitality | 2024 |
| Anstruther & Tarvit Property Ltd | Real estate | 2026 |
| Antigo Investments Ltd | Construction | 2021 |
| Antonine Homes Ltd | Construction | 2006 |
| Antonine Property Developments Group Ltd | Construction | 2006 |
| Antonio's Deli Ltd | Hospitality | 2022 |
| Ap/M Couriers Ltd | Transport & logistics | 2019 |
| APB Landscaping (Scotland) Limited | Administrative & support | 2021 |
| Apex Sheds Falkirk Limited | Manufacturing | 2026 |
| Apex Timber Contracts Ltd | Wholesale & retail | 2022 |
| Apex Timber Recycling Limited | Other services | 2015 |
| Appeal Media Limited | Manufacturing | 2024 |
| Appeal Property Investments Limited | Real estate | 2024 |
| Apple Wealth Ltd | Financial services | 2017 |
| Applegarth 3 Limited | Financial services | 2021 |
| Aquatec Water Treatment Limited | Other services | 2001 |
| AR Cat Ltd | Hospitality | 2025 |
| AR1 Trading Ltd | Hospitality | 2019 |
| Aran (Polmont) Limited | Hospitality | 2023 |
| Arandel Ltd. | Hospitality | 2014 |
| Arcam Design Ltd | Professional & scientific | 2023 |
| Arcden Design Studio Ltd | Information & communication | 2026 |
| Arch Hive Architecture Ltd | Professional & scientific | 2023 |