| Alicinar Limited | Hospitality | 2022 |
| Alide Energy LP | | 2015 |
| Aliena Divitiae Ltd | Financial services | 2025 |
| Alif Taste of Lahore Ltd | Hospitality | 2019 |
| Align SCP Ltd | Professional & scientific | 2025 |
| Aligned Home Care Ltd | Health & social care | 2026 |
| Alignée LP | | 2025 |
| Alink Fire & Security Limited | Administrative & support | 2012 |
| Alink Limited | Administrative & support | 2003 |
| Alis Apart Ltd | Real estate | 2026 |
| Alises Limited | Wholesale & retail | 2020 |
| Alisetti LP | | 2017 |
| Alisha Hussain Enterprise Limited | Extraterritorial | 2011 |
| Alisha Zarar Ltd | Households | 2024 |
| Alisium LP | | 2022 |
| Alison Consulting LP | | 2024 |
| Alison Cuthbert Beauty Limited | Other services | 2019 |
| Alison Jameson Consultants Limited | Professional & scientific | 2011 |
| Alison Will Limited | Information & communication | 1987 |
| Alistair & Balland Co. Limited | Arts & recreation | 2024 |
| Alistair Hawkins Architect Ltd | Professional & scientific | 2012 |
| Alistair Wilkie Law Accountants Limited | Professional & scientific | 2012 |
| Alistay LP | | 2013 |
| Ality Services LP | | 2016 |
| Ality Zone LP | | 2016 |
| Alive International Limited | Wholesale & retail | 2026 |
| Alix Taylor Taxi's & Tours Ltd | Administrative & support | 1999 |
| Aljarafi Limited | Hospitality | 2023 |
| Aljoha Consulting Ltd. | Professional & scientific | 2018 |
| Aljonoli Limited | Real estate | 2018 |
| Alkaram Walmustafa Ltd | Wholesale & retail | 2024 |
| Alkima Holding LP | | 2019 |
| Alkor UK Ltd | Professional & scientific | 2023 |
| ALL About Transcription Ltd | Administrative & support | 2016 |
| ALL Aspects Building & Construction (Scotland) Ltd | Construction | 2020 |
| ALL Aspects of Waste/Cleaning Limited | Water & waste | 2025 |
| ALL Autos Ltd | Extraterritorial | 2026 |
| ALL Day Fitness Limited | Arts & recreation | 2025 |
| ALL Day Long (Golf) Ltd | Arts & recreation | 2025 |
| ALL Electrical Edinburgh Limited | Manufacturing | 2021 |
| ALL Gadgetry Ltd | Professional & scientific | 2025 |
| ALL GAS NO Brakes Ltd | Education | 2026 |
| ALL Hands on | Information & communication | 2019 |
| ALL in Hand Events Ltd | Arts & recreation | 2016 |
| ALL in One L.P. | | 2026 |
| ALL in Taverns LLP | | 2009 |
| ALL Inspections Ltd | Manufacturing | 2022 |
| ALL Motor RS Ltd | Wholesale & retail | 2025 |
| ALL Motor Spares Ltd | Wholesale & retail | 2021 |
| ALL New Beginnings Ltd | Health & social care | 2018 |
| ALL One Access Ltd | Construction | 2020 |
| ALL OR Nothing Aerial Dance Theatre Ltd | Arts & recreation | 2012 |
| ALL Prime Accounting Ltd | Professional & scientific | 2014 |
| ALL Right on the Night LLP | | 2016 |
| ALL Round Marine Services L.P. | | 2012 |
| ALL Round Merchants L.P. | | 2010 |
| ALL SET Tennis Limited | Education | 2020 |
| ALL Sourcing Ltd | Administrative & support | 2020 |
| ALL Star Electrical Solutions Ltd | Other services | 2014 |
| ALL Things Change Ltd | Professional & scientific | 2006 |
| ALL Things Socotra Ltd | Information & communication | 2021 |
| ALL Together Edinburgh | Wholesale & retail | 2010 |
| ALL Trade Refurbishment Limited | Water & waste | 2015 |
| ALL Urban Waste Disposal Ltd | Water & waste | 2025 |
| ALL Very Handy Ltd | Construction | 2026 |
| All-In-One Abode Limited | Wholesale & retail | 2024 |
| All-Star Guides Ltd | Administrative & support | 2022 |
| All-Steak Limited | Manufacturing | 2025 |
| Allamanda Invest LP | | 2015 |
| Allan Forson Ltd | Administrative & support | 2025 |
| Allan Green Limited | Information & communication | 2018 |
| Allan Mcdougall Claims Limited | Other services | 2026 |
| Allan Mcdougall Mcqueen LLP | | 2017 |
| Allan Murray Architects Limited | Professional & scientific | 1998 |
| Allan Murray Design Ltd | Professional & scientific | 2014 |
| Allan Panthera Limited | Professional & scientific | 2018 |
| Allandale Developments Limited | Real estate | 2020 |
| Allandale Properties Limited | Real estate | 2000 |
| Alldale Services Limited | Construction | 2013 |
| Allegis Group (UK) L.P. | | 2010 |
| Allegrin LP | | 2015 |
| Allegro Access, L.P. | | 2008 |
| Allegro Art LP | | 2014 |
| Allemand & Karlton LP | | 2014 |
| Allen Corp LP | | 2017 |
| Allen Corporation LP | | 2012 |
| Allen Global LP | | 2015 |
| Allenborg & Bernadette LP | | 2012 |
| Allenborg Amundsen LP | | 2011 |
| Allenborg Werner LP | | 2011 |
| Allenergy Consult Ltd | Professional & scientific | 2026 |
| Allerdean Growth LP | | 2014 |
| Allerius Graftik Solutions LP | | 2012 |
| Allermuir Consultancy Services Ltd | Professional & scientific | 2024 |
| Allermuir Hill Ltd | Real estate | 2023 |
| Allermuir Laverock Limited | Professional & scientific | 2011 |
| Allermuir Propco Limited | Real estate | 2021 |
| Allermuir Property Group Ltd | Real estate | 2019 |
| Allermuir Restaurant Ltd | Hospitality | 2019 |
| Allerton Trading LP | | 2012 |