| Always Real Limited | Other services | 2018 |
| Alwo Holdings LP | | 2020 |
| Alya Hair and Beauty Ltd | Other services | 2021 |
| Alyarose Ltd | Wholesale & retail | 2024 |
| Alzain Shawarma Grill Ltd | Hospitality | 2024 |
| Alzette Alliance LP | | 2019 |
| Alzheimer Scotland - Action on Dementia | Health & social care | 1994 |
| AM & JM Homes | Administrative & support | 2025 |
| AM Asset Holdings Limited | Financial services | 2024 |
| AM Beauty Studios Ltd | Other services | 2024 |
| AM BID Services Ltd | Professional & scientific | 2014 |
| AM Commercial Consortium Limited | Real estate | 2024 |
| AM Commercial Tyre’S Limited | Wholesale & retail | 2025 |
| AM Consultancy Scotland Ltd | Professional & scientific | 2023 |
| AM Financial Management Limited | Extraterritorial | 2009 |
| AM Green Limited | Information & communication | 2013 |
| AM Investment Holdings Ltd | Real estate | 2021 |
| AM Investment Management Ltd | Extraterritorial | 2012 |
| AM Ismail Shawarma Ltd | Hospitality | 2025 |
| AM Luxury Cleaning Services Ltd | Administrative & support | 2024 |
| AM PM SA Properties Ltd | Real estate | 2017 |
| AM Retail Ltd | Wholesale & retail | 2018 |
| AM05MAC Ltd | Real estate | 2017 |
| AM47 Ltd | Wholesale & retail | 2025 |
| AMA (Braids) Ltd | Construction | 2018 |
| AMA (Kinnear) Limited | Construction | 2017 |
| AMA (Majestic 1) Ltd | Construction | 1972 |
| AMA (NT) LLP | | 2014 |
| AMA (Ravelston) Limited | Construction | 2008 |
| AMA (Slateford) Limited | Construction | 2010 |
| AMA (Springwell) Limited | Construction | 2019 |
| AMA (TOR 1) Ltd | Construction | 2019 |
| AMA (TOR Wood) Ltd | Construction | 2019 |
| AMA Business Limited | Real estate | 2025 |
| AMA Digital Media Ltd | Professional & scientific | 2019 |
| AMA Group International LP | | 2018 |
| AMA Pride LP | | 2015 |
| AMA Properties (Scotland) Limited | Real estate | 2004 |
| Amacuro Ltd | Administrative & support | 2016 |
| Amadelio LP | | 2017 |
| Amadeus & Angels Seed General Partner L.P. | | 2006 |
| Amadeus BI GP LP | | 2020 |
| Amadeus EI General Partner LP | | 2009 |
| Amadeus EII General Partner L.P. | | 2011 |
| Amadeus Eiii General Partner LP | | 2015 |
| Amadeus EIV GP LP | | 2020 |
| Amadeus Eiv-S LP | | 2020 |
| Amadeus EV GP LP | | 2022 |
| Amadeus General Partner Limited | Financial services | 1997 |
| Amadeus GI GP LP | | 2015 |
| Amadeus HI General Partner L.P. | | 2012 |
| Amadeus HII GP LP | | 2020 |
| Amadeus Hii-S LP | | 2020 |
| Amadeus I General Partner LP | | 1997 |
| Amadeus II General Partner LP | | 2000 |
| Amadeus III General Partner LP | | 2005 |
| Amadeus IV Digital Prosperity GP LP | | 2013 |
| Amadeus IV ES General Partner LP | | 2013 |
| Amadeus IV Velocity GP LP | | 2014 |
| Amadeus JI General Partner LP | | 2013 |
| Amadeus Mobile Seed General Partner LP | | 2001 |
| Amadeus NI GP LP | | 2020 |
| Amadeus Ni-S LP | | 2020 |
| Amadeus PI General Partner L.P. | | 2013 |
| Amadeus Rsef General Partner LP | | 2013 |
| Amadeus SI GP LP | | 2022 |
| Amadeus SII GP LP | | 2022 |
| Amadeus Solutions LP | | 2016 |
| Amadeus TI GP LP | | 2019 |
| Amadeus V Growth GP LP | | 2022 |
| Amadeus V Latin America Sustainable Growth GP LP | | 2021 |
| Amadeus V Technology GP LP | | 2017 |
| Amadeus VI Technology GP LP | | 2022 |
| Amador Architectural Services Ltd | Professional & scientific | 2023 |
| Amagentic Limited | Information & communication | 2024 |
| Amal Retail Solutions Ltd | Wholesale & retail | 2026 |
| Amalia Alliance LP | | 2017 |
| Amalija Alliance LP | | 2017 |
| Amana Food Limited | Hospitality | 2019 |
| Amanda French Limited | Administrative & support | 2017 |
| Amanjiwo Capital Partners | | 2006 |
| Amante Group LP | | 2016 |
| Amar Singh Sunner Ltd | Professional & scientific | 2022 |
| Amarah Properties Ltd | Real estate | 2025 |
| Amaralis Group LP | | 2016 |
| Amarapura Management Ltd | Extraterritorial | 2011 |
| Amaravati Ltd | Information & communication | 2018 |
| Amarcord Ltd | Real estate | 2020 |
| Amarello Group LP | | 2016 |
| Amareno Concept LP | | 2013 |
| Amarilis Group LP | | 2016 |
| Amarjnet Limited | Information & communication | 2013 |
| Amaryllis Flower Company Limited | Wholesale & retail | 2004 |
| Amati Global Holdings Limited | Professional & scientific | 2018 |
| Amati Global Investors Limited | Financial services | 1999 |
| Amatona Invest LP | | 2012 |
| Amaya Eye-Paediatrics Limited | Health & social care | 2015 |
| Amazing Apartments Limited | Hospitality | 2010 |
| Amazing Double Glazing Limited | Construction | 2021 |
| Amazing Home Improvements Limited | Construction | 2023 |