| A D M Installations Limited | Construction | 2007 |
| A Different Ending Ltd | Wholesale & retail | 2025 |
| A Divers Contracts Ltd | Construction | 2008 |
| A Dog's Life Ltd | Administrative & support | 2024 |
| A Dogs Best Friend (Scotland) Limited | Other services | 2021 |
| A Dunlop Cleaning Ltd | Administrative & support | 2026 |
| A Dunsmore Properties Ltd | Real estate | 2023 |
| A E Groundworks Ltd | Manufacturing | 2016 |
| A E Page Property Ltd | Real estate | 2025 |
| A F Contracts Ltd | Professional & scientific | 2020 |
| A F T Company Services Limited | Administrative & support | 2000 |
| A Feast on Sorrow Ltd | Information & communication | 2023 |
| A Fierce Storm Limited | Information & communication | 2023 |
| A Foot Ahead Ltd | Health & social care | 2021 |
| A Forsyth Holdings Ltd. | Financial services | 2003 |
| A Frame Digital Ltd | Wholesale & retail | 2026 |
| A Goldberg & Sons PLC | | 1938 |
| A Graham (Scotland) Ltd | Construction | 2014 |
| A Gray Electrical Services (Scot) Limited | Manufacturing | 2023 |
| A Green Dental LAB Ltd | Manufacturing | 2020 |
| A Green Management Ltd | Extraterritorial | 2012 |
| A Greener Scotland Ltd | Construction | 2024 |
| A H F Construction Management Ltd. | Construction | 2008 |
| A H Properties (Scot) Ltd | Real estate | 2018 |
| A H Sports Management Ltd | Arts & recreation | 2026 |
| A Hannah GAS Services Ltd | Construction | 2020 |
| A Hannah Ltd | Health & social care | 2026 |
| A Henderson Financial Planning Limited | Financial services | 2021 |
| A Henderson Properties Limited | Hospitality | 2013 |
| A Hoonjan Ltd | Real estate | 2021 |
| A Huge Growing Brain Ltd | Wholesale & retail | 2022 |
| A Hussain Commerce Ltd | Wholesale & retail | 2022 |
| A I B Electrical Wholesale (Glasgow) Limited | Wholesale & retail | 1975 |
| A I G Foods & Transport Limited | Wholesale & retail | 2023 |
| A I N Holdings Limited | Real estate | 2024 |
| A International Events Ltd | Professional & scientific | 2024 |
| A J 786 Limited | Wholesale & retail | 2012 |
| A J Aerials Ltd | Administrative & support | 2017 |
| A J B Holdings Limited | Real estate | 1990 |
| A J Balfour Associates Ltd | Professional & scientific | 2021 |
| A J Cable Services Limited | Construction | 2002 |
| A J Gray Contracts UK Limited | Construction | 2016 |
| A J Hire Cars Ltd | Administrative & support | 2020 |
| A J Ireland Ltd. | Administrative & support | 2003 |
| A J J Scaffolding Limited | Administrative & support | 2009 |
| A J Jolly Consultants Limited | Construction | 2007 |
| A J Transmissions & Conveyors Limited | Manufacturing | 1997 |
| A Jabbar Ltd. | Health & social care | 2002 |
| A K (Glasgow) Limited | Wholesale & retail | 2017 |
| A K Agricultural Services Limited | Agriculture & fishing | 2022 |
| A Keeton Holdings Ltd | Hospitality | 2019 |
| A Kerr Performance Ltd | Professional & scientific | 2026 |
| A Kyriazatis Ltd | Health & social care | 2022 |
| A L J (Scotland) Ltd | Real estate | 2016 |
| A L Leasing & Transport Ltd | Administrative & support | 2023 |
| A L Perrie Ltd. | Construction | 2008 |
| A Library of C.I.C. | Education | 2019 |
| A Little Physio Ltd | Other services | 2025 |
| A Live Sound Ltd | Arts & recreation | 2012 |
| A Lodge Guest House Ltd | Hospitality | 2023 |
| A M Beauty & Aesthetics Ltd | Other services | 2025 |
| A M Dental Ltd | Health & social care | 2019 |
| A M E Electronics Limited | Information & communication | 2008 |
| A M Funeral Services Ltd | Other services | 2015 |
| A M K Self Drive Limited | Wholesale & retail | 1993 |
| A M K Services Limited | Wholesale & retail | 1988 |
| A M Maintenance Services Limited | Administrative & support | 2022 |
| A Macdonald Consultants Ltd | Other services | 2018 |
| A Mackay (Publisher) Ltd | Wholesale & retail | 2025 |
| A Macleod Project Management Ltd | Construction | 2026 |
| A Mano (Paisley) Ltd | Hospitality | 2019 |
| A Market Ltd | Wholesale & retail | 2025 |
| A Matter of Trust Limited | Professional & scientific | 2025 |
| A Mcbride Joinery Ltd | Construction | 2016 |
| A Mcginley & Associates Ltd | Professional & scientific | 2013 |
| A Monaghan Education Consultancy Limited | Education | 2022 |
| A Morrison Logistics Ltd | Transport & logistics | 2025 |
| A Moulds Healthcare LLP | | 2026 |
| A Musafir Ltd | Transport & logistics | 2026 |
| A New Miller Limited | Arts & recreation | 2007 |
| A O Global Concepts Ltd | Administrative & support | 2018 |
| A One Contracts Ltd | Professional & scientific | 2017 |
| A One Jointing Services Ltd | Energy | 2026 |
| A P Hale Enterprises Ltd | Administrative & support | 2018 |
| A P Jess (Paisley) Ltd. | Manufacturing | 1995 |
| A P Jess Ltd. | Financial services | 1976 |
| A P M Contracts Limited | Construction | 2001 |
| A P S GEO Services Limited | Mining & quarrying | 2004 |
| A Parliament of Owls Ltd | Information & communication | 2023 |
| A Pastry Bar Limited | Wholesale & retail | 2021 |
| A Plus Auto Repairs Limited | Wholesale & retail | 2022 |
| A Plus Double Glazing Ltd | Manufacturing | 2025 |
| A Plus Skin & Aesthetics Ltd | Health & social care | 2025 |
| A R Kennedy Decorators and Painting Contractors Ltd. | Construction | 1999 |
| A R Online Limited | Wholesale & retail | 2015 |
| A R Scotland Ltd | Wholesale & retail | 2022 |
| A Rated Electrical Ltd | Construction | 2025 |
| A Rated Roofs Ltd | Construction | 2016 |
| A Rated Solar Ltd | Construction | 2019 |
| A Razzaq Enterprise Ltd | Manufacturing | 2024 |