| Assured Joinery & Building Contracts Limited | Construction | 2015 |
| AST Ventures Ltd | Real estate | 2025 |
| Astas Business Limited | Hospitality | 2025 |
| Asthtx Limited | Other services | 2024 |
| Athena (Scotland) Ltd | Professional & scientific | 2024 |
| Atholl Building Projects Limited | Construction | 2025 |
| Atholl Homes (Scotland) Ltd. | Other services | 2012 |
| Atholl Timber Frame Ltd | Construction | 2017 |
| Atio Properties Ltd | Real estate | 2025 |
| Atio Property Sourcing Ltd | Real estate | 2026 |
| Atio Real Estate Investment Ltd | Real estate | 2022 |
| Atlantis Laundries Ltd | Other services | 2015 |
| Atmos Barbering Ltd | Other services | 2025 |
| Attac Limited | Professional & scientific | 2022 |
| ATW Fire Limited | Professional & scientific | 2020 |
| Auchenvey WF Limited | Energy | 2013 |
| Audgim Limited | Health & social care | 2023 |
| Audibility Ltd | Wholesale & retail | 2024 |
| Audrey Rose Property Limited | Real estate | 2021 |
| Aura TAN Ltd | Wholesale & retail | 2025 |
| Ausam Limited | Health & social care | 2015 |
| Auto Key Scotland Ltd | Wholesale & retail | 2025 |
| Automotive Finance Reclaim Limited | Information & communication | 2024 |
| Autowrx Limited | Manufacturing | 2022 |
| AVA Scaffolding Designs Ltd | Professional & scientific | 2026 |
| Avant Letting Services Limited | Real estate | 2014 |
| Avec Associates Limited | Professional & scientific | 2020 |
| Avitus Consultants Limited | Construction | 2026 |
| Avondoyle Property Ltd | Households | 2023 |
| AW Mortgage & Protect Ltd | Financial services | 2022 |
| AW Tech Services Ltd | Information & communication | 2021 |
| Aware Digital Services Ltd | Information & communication | 2025 |
| AWD On-Site Services Ltd | Manufacturing | 2023 |
| AX Logics Ltd | Transport & logistics | 2025 |
| AXE Logistics Limited | Transport & logistics | 2022 |
| Ayzel Enterprises Ltd | Real estate | 2024 |
| AZM Investments Limited | Health & social care | 2017 |
| Azzom Group Limited | Hospitality | 2020 |
| B & B Commercials Limited | Wholesale & retail | 2010 |
| B & F Depot Limited | Hospitality | 2009 |
| B & R Direct Distribution Ltd | Wholesale & retail | 2019 |
| B E Properties Ltd | Real estate | 2014 |
| B&M Flooring Solutions Ltd. | Construction | 2018 |
| B. & B. Lifting Equipment Ltd. | Administrative & support | 1999 |
| BA Motors (Scotland) Ltd | Wholesale & retail | 2026 |
| Babes Horses Ltd | Wholesale & retail | 2017 |
| Bacc Marketing Limited | Wholesale & retail | 2010 |
| BAH Cladding Ltd | Construction | 2025 |
| Bailey's Haulage Ltd | Transport & logistics | 2025 |
| Baitul Huzan Scotlan Ltd | Health & social care | 2025 |
| Baker Decor Limited | Construction | 2005 |
| Bakery Maintenance Services Ltd. | Manufacturing | 2014 |
| Baljit Convenience Store Ltd | Wholesale & retail | 2019 |
| Ballochney Homes Limited | Construction | 2021 |
| Balmoral Contractors (Scotland) Limited | Administrative & support | 2023 |
| Balmoral Real Estates 2 Ltd | Real estate | 2018 |
| Bams Group Ltd | Real estate | 2023 |
| BAO Roofing & Cladding Ltd | Construction | 2016 |
| Bardalino Limited | Wholesale & retail | 2019 |
| Bari Assets Limited | Real estate | 2024 |
| Bari Brothers Ltd | Hospitality | 2019 |
| Barmac Electrical Contractors Ltd | Construction | 2011 |
| Barry Electrics Ltd | Construction | 2025 |
| Barwell Scotland Ltd | Other services | 2023 |
| BAS Automation Limited | Professional & scientific | 2016 |
| Base Metal Roofing Limited | Construction | 2015 |
| Bathrooms & Kitchens Direct Limited | Construction | 2022 |
| BB Soils Ltd | Water & waste | 2017 |
| BBN Investments Ltd | Education | 2008 |
| Bbtyres Ltd | Wholesale & retail | 2025 |
| BC DEV Limited | Professional & scientific | 2023 |
| Bcll Limited | Real estate | 2010 |
| BCN Services Group Limited | Administrative & support | 2024 |
| BDL Demolition Ltd | Construction | 2017 |
| BDL Pubco Ltd | Hospitality | 2025 |
| BE Engineering Scotland Limited | Administrative & support | 2023 |
| BE Rented Ltd. | Real estate | 2005 |
| Be-Inspired Designs Glasgow Ltd | Construction | 2025 |
| Bear River Limited | Hospitality | 2011 |
| Beat Depression Daily Ltd | Other services | 2023 |
| Beatha Media Ltd | Administrative & support | 2015 |
| Beau Talk Productions Ltd | Information & communication | 2015 |
| Beauty Box Boutique (2020) Ltd | Wholesale & retail | 2020 |
| BEE Hive With Love Ltd | Wholesale & retail | 2025 |
| Befo Ltd | Real estate | 2020 |
| Bell Quadrant Barbers Ltd | Other services | 2019 |
| Belle Mere Hair & Beauty Ltd | Other services | 2023 |
| Bellshill Leisure Limited | Wholesale & retail | 2021 |
| Bellshill Metal Works (Glasgow) Limited | Real estate | 1949 |
| Belmac Services Limited | Agriculture & fishing | 2010 |
| Below Canvas Ltd | Arts & recreation | 2017 |
| Benakons Limited | Transport & logistics | 2026 |
| Benchmark Engineering Limited | Professional & scientific | 2021 |
| Bentley Properties (Scotland) Ltd | Real estate | 2025 |
| Bermont Limited | Administrative & support | 1997 |
| Bermont Management Consultancy Limited | Professional & scientific | 2012 |
| Bertie Holdings Ltd | Financial services | 2022 |
| Bespoke Motor Conversions (Scotland) Ltd | Wholesale & retail | 2023 |
| Best Takeaway Scot Limited | Hospitality | 2022 |
| BEX Services Ltd. | Other services | 2018 |