| Aspire Signature Group Ltd | Financial services | 2024 |
| ASPIRE2B Coaching & Development Ltd | Professional & scientific | 2012 |
| Aspiring Aesthetics Ltd | Other services | 2022 |
| Aspx Ltd | Information & communication | 2021 |
| Assessment & Development Solutions Limited | Professional & scientific | 2011 |
| Asset Integrity Inspections Ltd | Construction | 2018 |
| Assured ALL Trades Limited | Professional & scientific | 2026 |
| Aster Fusion Ltd | Hospitality | 2025 |
| Astore HAS Ltd | Real estate | 2023 |
| Astraforge Limited | Information & communication | 2025 |
| Asts Enterprises UK Limited | Wholesale & retail | 2024 |
| ATG Interior & Furniture Solutions Ltd | Construction | 2015 |
| Athow-Watson Limited | Professional & scientific | 2002 |
| Atiqa Peri Peri Ltd | Hospitality | 2025 |
| Atkin Coaching Limited | Other services | 2021 |
| Atlas Engines Ltd | Manufacturing | 2013 |
| Atom Communications and Events Ltd | Administrative & support | 2018 |
| Atom Contracts Limited | Construction | 2014 |
| Atom Developments Ltd | Construction | 2022 |
| ATS US Clean Limited | Administrative & support | 2025 |
| Atsm Paisley Ltd | Hospitality | 2026 |
| Attis Fitness Limited | Information & communication | 2016 |
| Attune Theatre CIC | Arts & recreation | 2012 |
| Audio Guys Glasgow Ltd | Arts & recreation | 2024 |
| Aura Permanent Jewellery Ltd | Wholesale & retail | 2023 |
| Aurica Beauty Ltd | Other services | 2024 |
| Aurora Hygiene Solutions Limited | Information & communication | 2019 |
| Auto Gates Scot Ltd | Manufacturing | 2020 |
| Autofix Garage Services Ltd | Wholesale & retail | 2020 |
| AUZ Traders Limited | Hospitality | 2021 |
| AVB Radiology Solutions Limited | Health & social care | 2017 |
| Avenue Grocers Ltd | Wholesale & retail | 2025 |
| Aviation Professionals Ltd | Transport & logistics | 2020 |
| Avon Hall Limited | Construction | 2013 |
| AWM Business Consulting Ltd | Information & communication | 2025 |
| Axeon Ltd | Wholesale & retail | 2022 |
| AYA Fish & Grill Ltd | Hospitality | 2025 |
| Aydy Dental Care Limited | Health & social care | 2014 |
| Ayeza Collection Ltd | Wholesale & retail | 2024 |
| Ayrshire Learning Business Academy Limited | Education | 2016 |
| AZ Zephyer Ltd | Wholesale & retail | 2025 |
| Azamora Ltd | Education | 2025 |
| Aziz and Family Ltd | Health & social care | 2023 |
| Azka Holdings Limited | Real estate | 2023 |
| B Fibre Ltd | Information & communication | 2025 |
| B P Paisley Ltd | Hospitality | 2025 |
| B&M House Ltd | Real estate | 2025 |
| B-Active Limited | Arts & recreation | 2005 |
| B.A.M.S (Scotland) Ltd | Construction | 2021 |
| B2R Motorcycles Ltd | Wholesale & retail | 2025 |
| B3 Studios Scotland Ltd | Other services | 2019 |
| BA BA Koochi Bear Ltd. | Wholesale & retail | 2008 |
| BA Property Maintenance Ltd | Real estate | 2015 |
| Baaf Ltd | Hospitality | 2025 |
| Babel Interpretation Services Ltd | Professional & scientific | 2026 |
| Backstage Experience Ltd | Hospitality | 2024 |
| Badesha Properties Limited | Wholesale & retail | 2004 |
| Baer & Oak Capital Limited | Professional & scientific | 2023 |
| BAG This Way Ltd | Transport & logistics | 2025 |
| Baire Clothing Ltd | Wholesale & retail | 2026 |
| Balgonie Donns Ltd | Professional & scientific | 2020 |
| Balgravia Contracts Ltd | Construction | 2010 |
| Baligaconstruction Limited | Construction | 2025 |
| Ballers Football Coaching Ltd | Arts & recreation | 2026 |
| Banshee Limited | Hospitality | 2026 |
| Baraiz Ltd | Wholesale & retail | 2023 |
| Barber House Limited | Other services | 2017 |
| Bardem Limited | Construction | 2013 |
| BARPRE2 Limited | Hospitality | 2024 |
| Barr Electrical Services Ltd | Manufacturing | 2025 |
| Barral Sheppard Wealth Ltd | Financial services | 2020 |
| Barrhead Funeral Directors Ltd | Other services | 2019 |
| Barrhead Utility Services Limited | Administrative & support | 2017 |
| Barrlochhead Trading Limited | Professional & scientific | 2019 |
| Base S & C Ltd | Arts & recreation | 2024 |
| Bask Saunas Ltd | Other services | 2025 |
| Bass Business Solutions Ltd | Administrative & support | 2014 |
| BATHCO89 Limited | Other services | 2022 |
| Bathrooms Direct Ltd | Construction | 2025 |
| Bay Blinds (Scotland) Ltd | Wholesale & retail | 2017 |
| Bayfield Property Investments Limited | Real estate | 2023 |
| BB Logistics (Scotland) Ltd. | Other services | 2020 |
| Bbeyond Computers Ltd | Wholesale & retail | 2026 |
| Bdmh Limited | Construction | 2024 |
| BDR Solutions Ltd | Other services | 2013 |
| BDT International Limited | Wholesale & retail | 2024 |
| BE Home Holdings Ltd | Real estate | 2021 |
| Beachcomber Global Educational Consulting Links Limited | Education | 2026 |
| Beat the Vibe Ltd | Health & social care | 2024 |
| Beattie Glass Ltd | Other services | 2011 |
| Beauty and Beast Gyms Ltd | Arts & recreation | 2024 |
| Bebiendo Hermanos Ltd | Construction | 2022 |
| Bees Salons Ltd | Other services | 2026 |
| Bees Weaves Limited | Other services | 2024 |
| Beit Property Holdings Ltd | Real estate | 2023 |
| Bela Hair Limited | Other services | 2016 |
| Believe Entertainment Ltd | Arts & recreation | 2011 |
| Bell MAC Rock Ltd | Real estate | 2020 |
| Bell Residential Homes Ltd | Households | 2025 |
| Bell-Wylie Ltd | Professional & scientific | 2022 |