| Aeron Automation Holdings Ltd | Professional & scientific | 2014 |
| Aeron Medical Ltd | Health & social care | 2022 |
| Aeronautica Militare UK Limited | Wholesale & retail | 2020 |
| Aeropair Services Scotland Ltd | Manufacturing | 2025 |
| Aeropost LP | | 2024 |
| Aeroscraper Ltd | Wholesale & retail | 2026 |
| Aerovista Ltd | Real estate | 2025 |
| AES Consulting Services Ltd | Administrative & support | 2022 |
| AES Contracting Ltd | Construction | 2018 |
| AES Facilities Ltd | Construction | 2023 |
| AES Glasgow Limited | Wholesale & retail | 2024 |
| AES Management Ltd | Construction | 2020 |
| Aestheti-Kaly 2 Ltd | Health & social care | 2025 |
| Aestheti-Kaly Ltd | Other services | 2018 |
| Aesthetic Lines (Scotland) Limited | Health & social care | 2012 |
| Aesthetic Medical Research Limited | Professional & scientific | 2021 |
| Aesthetic Plastic Surgery Solutions Limited | Health & social care | 2010 |
| Aesthetic Suites Ltd | Other services | 2019 |
| Aesthetic Therapy Limited | Health & social care | 2022 |
| Aesthetic-Doctor.Com (Holdings) Ltd | Health & social care | 2019 |
| Aestheticon Limited | Other services | 2022 |
| Aesthetics by CK Limited | Other services | 2021 |
| Aesthetics by D and Beauty at D'S Limited | Other services | 2025 |
| Aesthetics by RR Ltd | Health & social care | 2023 |
| Aesthetics by Urooj Ltd | Other services | 2024 |
| Aesthetics CPD Ltd | Other services | 2024 |
| Aesthetics Enhanced Ltd | Health & social care | 2020 |
| Aestheticsbycrissy Ltd | Other services | 2025 |
| Aesthology Ltd | Wholesale & retail | 2021 |
| Aestique Health & Wellbeing Ltd | Health & social care | 2025 |
| Aether by Blanboz Ltd | Information & communication | 2026 |
| Aetherblade Ltd | Information & communication | 2025 |
| Aeybnb Ltd | Real estate | 2026 |
| AF Autoz Ltd | Wholesale & retail | 2021 |
| AF Cafes Ltd | Hospitality | 2023 |
| AF Chippy Ltd | Hospitality | 2024 |
| AF Ecosse Limited | Real estate | 2017 |
| AF Glasgow South Ltd | Education | 2025 |
| AF Pharm Ltd | Professional & scientific | 2022 |
| AF Projects Ltd | Professional & scientific | 2023 |
| AF Property Investment Group Limited | Real estate | 2022 |
| AF Roofing & Building Services Limited | Construction | 2023 |
| AF Security Solutions Ltd | Administrative & support | 2021 |
| AF Takeaway Ltd | Hospitality | 2019 |
| AF Therapeutics Limited | Health & social care | 2022 |
| AF Watt Engineering Ltd | Professional & scientific | 2024 |
| Afah Limited | Wholesale & retail | 2021 |
| AFB Furniture Ltd | Wholesale & retail | 2019 |
| AFC Surveyor and Rail Engineer Limited | Transport & logistics | 2018 |
| AFD Agencies Limited | Wholesale & retail | 2014 |
| AFD Haulage Ltd | Transport & logistics | 2018 |
| Afex Couriers Ltd | Transport & logistics | 2024 |
| AFF Corporate Ltd | Professional & scientific | 2013 |
| AFF Spice Ltd | Hospitality | 2026 |
| Affa Fine Productions Limited | Information & communication | 2022 |
| Affg Productions Ltd | Other services | 2016 |
| Affina Corp. LP | | 2016 |
| Affinity Brokers Limited | Financial services | 2010 |
| Affinity by Bell & Bain Limited | Other services | 2026 |
| Affinity Financial Planning Limited | Financial services | 2001 |
| Affinity Hospitals Group Limited | Professional & scientific | 2001 |
| Affinity Hospitals Holding Limited | Professional & scientific | 1999 |
| Affinity Planning Ltd | Professional & scientific | 2020 |
| Affirm Property Limited | Real estate | 2023 |
| Affluence Assets Ltd | Construction | 2025 |
| Affluteq Ltd | Wholesale & retail | 2019 |
| Affordable Boiler Solutions Ltd | Manufacturing | 2015 |
| Affordable Finance (South) Limited | Financial services | 2013 |
| Affordable Golf Ltd. | Wholesale & retail | 2008 |
| Affordable Heating Scotland Ltd | Construction | 2019 |
| Affordable Traders Limited | Construction | 2025 |
| Affordable Treads Ltd | Wholesale & retail | 2026 |
| Affordable Windows Scotland Limited | Construction | 2009 |
| Affric & Lyon Real Estate Limited | Real estate | 2018 |
| Affric Accountants Limited | Professional & scientific | 2006 |
| AFG Scotland Limited | Construction | 2007 |
| Afghan Kitchen Ltd | Wholesale & retail | 2019 |
| Afghan Taxi Service Limited | Transport & logistics | 2025 |
| Afghanistanpay Limited | Professional & scientific | 2025 |
| AFH Medical Services Ltd | Health & social care | 2022 |
| Aficionado Films Ltd. | Information & communication | 2004 |
| Afillion Ltd | Information & communication | 2018 |
| Afimilk Holdings UK Limited | Professional & scientific | 2013 |
| Afimilk UK Limited | Manufacturing | 2007 |
| Afis Limited | Real estate | 2004 |
| Afitglasgow Ltd | Other services | 2022 |
| AFK Limited | Wholesale & retail | 2025 |
| AFK Medicare Ltd | Health & social care | 2026 |
| AFK Noor Limited | Health & social care | 2018 |
| Afkm Limited | Professional & scientific | 2005 |
| AFL Events Ltd | Hospitality | 2023 |
| AFM Developments Limited | Real estate | 2019 |
| AFM Investments Limited | Financial services | 2015 |
| Afraz Pharma Ltd | Wholesale & retail | 2022 |
| Afrecon Ltd | Arts & recreation | 2020 |
| Afreshe | Education | 2008 |
| Afriasia & Beyond Limited | Administrative & support | 2002 |
| AFRIC54 TV Ltd | Information & communication | 2025 |
| Africa & Middle-East Contractor L.P. | | 2016 |
| Africa ALL in One Ltd | Professional & scientific | 2024 |