| ACCESS2LOFTS Ltd | Construction | 2019 |
| Accessing Online Knowledge Limited | Administrative & support | 2001 |
| Accessories 2 YOU Limited | Other services | 2001 |
| Accessorize Glasgow Limited | Administrative & support | 2024 |
| Acci-Dent (Glasgow West) Limited | Wholesale & retail | 2003 |
| Accident Compensation (Scotland) Ltd | Financial services | 2009 |
| Accident Solutions Scotland Limited | Other services | 2015 |
| Accidents DO Happen Ltd | Construction | 2025 |
| Accidon'T Limited | Transport & logistics | 1999 |
| Accn Medical Limited | Health & social care | 2019 |
| Accord Business Support Limited | Professional & scientific | 2003 |
| Accord Welding Services Ltd | Professional & scientific | 2019 |
| Accountancy & Taxation Ltd | Professional & scientific | 2021 |
| Accountancy FEE Protection Limited | Professional & scientific | 1999 |
| Accountancy Outsourcing Limited | Professional & scientific | 2013 |
| Accountant-Pl Ltd | Professional & scientific | 2020 |
| ACCOUNTANTS247 Glasgow South Limited | Professional & scientific | 2022 |
| Accountax (Glasgow) Ltd | Professional & scientific | 2003 |
| Accountax Secretarial Ltd | Extraterritorial | 2004 |
| Accounting & Tax Solutions + Ltd. | Professional & scientific | 2010 |
| Accounting Automated Ltd | Financial services | 2023 |
| Accounts & Payroll Solutions Ltd | Professional & scientific | 2011 |
| Accounts Accurate Ltd | Professional & scientific | 2020 |
| Accounts Advice & Planning Limited | Professional & scientific | 2010 |
| Accounts Advice & Planning Nominees Ltd | Professional & scientific | 2011 |
| Accounts World Ltd | Professional & scientific | 2012 |
| Accountsplus Accountants Ltd | Professional & scientific | 2012 |
| Accu-Tech Systems Limited | Professional & scientific | 2001 |
| Accumetals Holding LP | | 2018 |
| Accumetals LP | | 2016 |
| Accupaye Ltd | Administrative & support | 2022 |
| Accurate Cooling Services (Scotland) Limited | Administrative & support | 2020 |
| Accurate Diagnostics Ltd | Health & social care | 2015 |
| Accuratus Engineering Solutions Limited | Administrative & support | 2011 |
| Accuris Claims Ltd | Professional & scientific | 2025 |
| Accutree Limited | Wholesale & retail | 1986 |
| Acdmrfcopco Ltd | Hospitality | 2026 |
| Acdmrfcpropco Ltd | Hospitality | 2025 |
| Ace & HAY Ltd | Information & communication | 2026 |
| Ace (Children) Ltd | Information & communication | 2015 |
| Ace Audio Ltd | Arts & recreation | 2022 |
| Ace Bodyshop Ltd | Wholesale & retail | 2025 |
| Ace Coatings Property Solutions Ltd | Construction | 2026 |
| Ace Decor (Glasgow) Ltd | Construction | 2022 |
| Ace Developments (Scotland) Ltd | Other services | 2021 |
| Ace Digital Solutions Ltd | Information & communication | 2025 |
| Ace Energy Solutions Ltd | Professional & scientific | 2022 |
| Ace Expertise Ltd | Professional & scientific | 2020 |
| Ace Fabrications Ltd. | Manufacturing | 2002 |
| Ace Fleet Solutions Ltd | Wholesale & retail | 2024 |
| Ace Glasgow Electrical Limited | Construction | 2026 |
| Ace Glasgow Limited | Construction | 2020 |
| Ace Group Scotland Limited | Professional & scientific | 2023 |
| Ace Holdings 72 Ltd | Real estate | 2018 |
| Ace HR Ltd | Professional & scientific | 2025 |
| Ace Inspections Ltd | Construction | 2024 |
| Ace Investments (Scotland) Limited | Real estate | 2024 |
| Ace Joinery & Construction (Scot) Ltd | Construction | 2013 |
| Ace Landscaping Glasgow Ltd | Administrative & support | 2026 |
| Ace of Spade Garden Services Ltd | Administrative & support | 2022 |
| Ace Petrochem Ltd | Mining & quarrying | 2010 |
| Ace Place Childcare Services Limited | Education | 2009 |
| Ace Requisite Ltd | Professional & scientific | 2020 |
| Ace Roofing Service Ltd | Construction | 2018 |
| Ace Technology Services Ltd | Information & communication | 2023 |
| Ace Tiling Glasgow Ltd | Construction | 2025 |
| Ace Tribe Ltd | Arts & recreation | 2021 |
| Ace Your Interview Ltd | Professional & scientific | 2024 |
| Acebased Products Ltd | Real estate | 2019 |
| Acebaselinks UK Limited | Information & communication | 2022 |
| Acehouse Solutions Limited | Information & communication | 2022 |
| Acek Property Ltd | Real estate | 2021 |
| Aceone Autos Ltd | Wholesale & retail | 2024 |
| Acer Landscapes Limited | Administrative & support | 2026 |
| Acer Renewables Ltd | Construction | 2021 |
| Acer-Brodie Developments Ltd | Real estate | 2025 |
| Aceris Limited | Professional & scientific | 2002 |
| Aces Consulting Limited | Professional & scientific | 2022 |
| Acestakes Investment Limited | Other services | 2025 |
| Acetings Ltd | Professional & scientific | 2025 |
| ACETRADING24 Ltd | Wholesale & retail | 2025 |
| ACF Control Solutions Limited | Professional & scientific | 2007 |
| ACF Project Management Ltd | Construction | 2014 |
| ACG Business Services Ltd | Information & communication | 2021 |
| ACG Property Scotland Ltd | Construction | 2023 |
| Acgr Limited | Information & communication | 2025 |
| Acha Homes Ltd | Real estate | 2025 |
| Acha Properties Ltd. | Professional & scientific | 2012 |
| Achernar Construction Ltd | Construction | 2024 |
| Achieve Consulting Limited | Professional & scientific | 2013 |
| Achiever Group Ltd | Administrative & support | 2025 |
| Achill Energy Services Ltd | Professional & scientific | 2024 |
| Achilles Contractor Ltd | Construction | 2013 |
| Achilles Heel Limited | Wholesale & retail | 2004 |
| Achology Transactions Ltd. | Education | 2021 |
| ACI Contracts Limited | Construction | 2015 |
| ACI Holdings Limited | Professional & scientific | 2003 |
| ACI Installations Ltd | Construction | 2024 |
| ACI Integrated Solutions (AV) Limited | Wholesale & retail | 2023 |
| ACI Property Ltd | Real estate | 2022 |