| 10VALET Ltd | Wholesale & retail | 2019 |
| 1244 Taxis Ltd. | Professional & scientific | 2007 |
| 1262 Edin. Ltd. | Professional & scientific | 2003 |
| 16SP Ltd | Real estate | 2024 |
| 1722 Consulting Ltd | Information & communication | 2026 |
| 1ST Automatic Door & Gate Company (Edinburgh) Limited | Manufacturing | 2002 |
| 1ST Class Care Solutions Limited | Health & social care | 2013 |
| 1ST Payments Ltd | Administrative & support | 2023 |
| 2041 Ltd | Professional & scientific | 2026 |
| 270 Edin Ltd. | Transport & logistics | 2007 |
| 301 Taxis Ltd. | Professional & scientific | 2019 |
| 338 Taxi Services Limited | Transport & logistics | 2024 |
| 3B Electronics Recycling Centre Ltd | Wholesale & retail | 2023 |
| 3Z Properties Ltd | Wholesale & retail | 2026 |
| 418 Taxis Ltd | Other services | 2012 |
| 4XMS Ltd | Transport & logistics | 2021 |
| 55 Degrees North Collective Ltd | Manufacturing | 2026 |
| 581 Taxis Limited | Professional & scientific | 2011 |
| 6 Percent Formulas Limited | Wholesale & retail | 2014 |
| 600 Scottaxis Limited | Transport & logistics | 2019 |
| 677 Taxis Ltd. | Professional & scientific | 2007 |
| 6M Developments Limited | Real estate | 2024 |
| 6M Properties Limited | Real estate | 2025 |
| 7 Hills IT Solutions Limited | Information & communication | 2019 |
| 99 Ices Ltd | Manufacturing | 2022 |
| @Pave Contracts Ltd | Administrative & support | 2022 |
| A & S Retail Services Limited | Wholesale & retail | 2017 |
| A H (Taxis) Ltd. | Professional & scientific | 1999 |
| A M Ltd T/As Ashton Motor Group Limited | Wholesale & retail | 2019 |
| A MAC Transport Ltd | Transport & logistics | 2022 |
| A R Mcdonald (Painter & Decorators) Ltd | Construction | 2004 |
| A&A CNR Contractors Limited | Other services | 2025 |
| A&A Jetting Services Ltd | Administrative & support | 2023 |
| A&D Edinburgh Limited | Hospitality | 2016 |
| A&J Property Serve Ltd | Real estate | 2025 |
| A&K Scott Limited | Hospitality | 2024 |
| A-Itex Ltd | Wholesale & retail | 2014 |
| A. Ross Philip (Jewellers) Limited | Wholesale & retail | 1979 |
| A.J. Purdie Limited | Other services | 2003 |
| A1 Cabs Ltd | Administrative & support | 2017 |
| A2B Motorcycle Clothing Ltd | Wholesale & retail | 2020 |
| A2B Motorcycle Training WL Ltd | Education | 2018 |
| A2B WL Limited | Transport & logistics | 2016 |
| A3N Management Ltd | Real estate | 2024 |
| A5 Coaching Ltd | Education | 2025 |
| Aabosc Ltd | Construction | 2023 |
| Aaron Michaels Coffee Co Ltd | Hospitality | 2017 |
| Aaron Michaels Ltd | Other services | 2017 |
| AB Habitat Ltd | Real estate | 2025 |
| AB Management Ltd | Real estate | 2025 |
| ABB Piping Solutions Ltd | Construction | 2016 |
| Abbie's Dog Academy Ltd | Professional & scientific | 2020 |
| ABC Private Nursery Limited | Education | 2015 |
| Abcd Vending Ltd | Wholesale & retail | 2015 |
| Abdul & Scott Ltd | Hospitality | 2025 |
| Abercorn Clinic Limited | Health & social care | 2025 |
| Aberdeen Window and Door Systems Limited | Administrative & support | 1982 |
| Aberwell Limited | Professional & scientific | 2002 |
| Abhira Limited | Real estate | 2017 |
| Abida Group Food Ltd | Hospitality | 2018 |
| Able Platers (Scotland) Ltd. | Manufacturing | 2009 |
| Abundance Awakening Retreats Ltd | Administrative & support | 2026 |
| Ac&H 19 Limited | Professional & scientific | 1998 |
| Access Control Supplies Limited | Administrative & support | 2022 |
| Accomodator (UK) Limited | Real estate | 2005 |
| Ace Future Limited | Education | 2025 |
| Aceo Distillers Company Ltd | Manufacturing | 2023 |
| Acga Property Management Ltd | Real estate | 2023 |
| Aclas Technics Limited | Transport & logistics | 2002 |
| Acrepoint Limited | Real estate | 1996 |
| Active Asset Management (Scotland) Ltd | Financial services | 2013 |
| Active Healthcare Services Limited | Health & social care | 2014 |
| Active Tulz Investments LLP | | 2026 |
| Active Tulz Real Estate Ltd | Real estate | 2024 |
| Active&Knowing Transport Limited | Transport & logistics | 2019 |
| ACW Electrical & Solar Ltd | Construction | 2022 |
| AD Metal Fabrications (Livingston) Ltd | Manufacturing | 2009 |
| AD Spireal Limited | Information & communication | 2025 |
| Adaab Limited | Hospitality | 2025 |
| Addm Project Management Ltd | Information & communication | 2022 |
| Adila Consultants Limited | Information & communication | 2022 |
| Adio Storage Limited | Professional & scientific | 2023 |
| Aditya Akash Limited | Hospitality | 2024 |
| Aditya Letting Limited | Real estate | 2023 |
| Adrian Plesa Courier Ltd | Transport & logistics | 2019 |
| ADS Compass LP | | 2017 |
| Advanced Civils Solutions Ltd | Construction | 2025 |
| Advanced Fitness Academy Ltd | Education | 2022 |
| Advanced Rose Healthcare Services Ltd | Water & waste | 2021 |
| Advanced Rose Recruitment and Healthcare Services Ltd | Transport & logistics | 2023 |
| Advanced Service Plus Limited | Administrative & support | 2020 |
| Advantage Personnel (Scotland) Limited | Administrative & support | 2004 |
| Adyala Limited | Wholesale & retail | 2026 |
| Aelh IT Services Ltd | Information & communication | 2022 |
| Aerial Adventures (Global) Limited | Arts & recreation | 2009 |
| Aerial Adventures Livingston CIC | Arts & recreation | 2013 |
| Aerogem Engineering Solutions LLP | | 2011 |
| Aesthete Coffee Roasters Limited | Manufacturing | 2023 |
| Aestheticallyuk Limited | Other services | 2024 |
| Aesthetics by Stephanie Ltd | Health & social care | 2021 |