| 99 Ventures Ltd | Information & communication | 2011 |
| 999 Group Ltd | Wholesale & retail | 2024 |
| 999 Taxis Ltd. | Professional & scientific | 2018 |
| 999 UMY Ltd | Wholesale & retail | 2025 |
| 99GROUP Ltd | Real estate | 2021 |
| 9T9 Fitness Limited | Professional & scientific | 2014 |
| 9THELEVENUK Ltd | Wholesale & retail | 2025 |
| @Synchronous-It Ltd | Information & communication | 2023 |
| A & a Hyland Limited | Administrative & support | 2003 |
| A & a Marcantonio Properties Limited | Real estate | 2021 |
| A & a Traders Scotland Ltd | Wholesale & retail | 2020 |
| A & AQ Limited | Wholesale & retail | 2014 |
| A & B Joinery Solutions Ltd | Construction | 2026 |
| A & B TTT Taxis Ltd | Professional & scientific | 2013 |
| A & C Flooring Limited | Construction | 2006 |
| A & D Dalry Ltd | Other services | 2025 |
| A & D Leisure Limited | Hospitality | 2003 |
| A & D O'Donnell Ltd. | Hospitality | 2015 |
| A & E Brothers Ltd | Wholesale & retail | 2021 |
| A & G Crolla & Company Limited | Real estate | 2015 |
| A & I Duns Ltd | Wholesale & retail | 2012 |
| A & I HR Consultants Ltd | Administrative & support | 2024 |
| A & I Property Management Limited | Real estate | 2000 |
| A & J Barlow LLP | | 2018 |
| A & J Saber Ltd. | Wholesale & retail | 2014 |
| A & M Imaging Services Limited | Manufacturing | 2006 |
| A & M Taxis Ltd. | Extraterritorial | 2002 |
| A & P Property Group Ltd | Real estate | 2019 |
| A & S Estate Holdings Ltd | Real estate | 2026 |
| A & S Mcgregor Ltd. | Health & social care | 2009 |
| A & S Valeting Ltd | Administrative & support | 2019 |
| A & S.Q.S. | | 2003 |
| A & T Robertson Holdings Limited | Real estate | 2020 |
| A & Z Business Ltd | Hospitality | 2025 |
| A - Trans Logistics L.P. | | 2010 |
| A 1 Digital Ltd | Health & social care | 2024 |
| A and M Mccutcheon Limited | Health & social care | 2014 |
| A and S Blair Limited | Administrative & support | 2016 |
| A B Brown Limited | Administrative & support | 2020 |
| A B Mearns Ltd. | Construction | 2008 |
| A Bathgate Joiners Limited | Administrative & support | 2016 |
| A Bells Removals and Storage Ltd | Administrative & support | 2019 |
| A Burgers Ltd | Hospitality | 2023 |
| A Crolla & SON Catering Limited | Real estate | 1983 |
| A Cuthill Glazing Limited | Manufacturing | 2003 |
| A D Reid Management Limited | Real estate | 2022 |
| A D Stuart & Co. Limited | Professional & scientific | 2014 |
| A E Chauffeurs Ltd | Transport & logistics | 2017 |
| A F L Services Limited | Health & social care | 2017 |
| A Furneaux Limited | Professional & scientific | 2025 |
| A Geek Oddity Ltd | Wholesale & retail | 2024 |
| A Ghaly Consultant Services Ltd | Health & social care | 2011 |
| A Haddow Construction Services Ltd | Other services | 2019 |
| A House in Nature Ltd | Agriculture & fishing | 2026 |
| A Ismile Ltd | Health & social care | 2023 |
| A J Fraser HLD Limited | Administrative & support | 2012 |
| A J S L P 30 | | 1998 |
| A J S L P 31 | | 1998 |
| A J S L P 32 | | 1998 |
| A J S L P 33 | | 1998 |
| A J S L P 34 | | 1998 |
| A J S L P 35 | | 1998 |
| A Jack Glass & Glazing Limited | Construction | 2010 |
| A K Express Convenience Store Limited | Wholesale & retail | 2018 |
| A K Fair Trade & Co Ltd | Wholesale & retail | 2025 |
| A Kind Life Ltd | Professional & scientific | 2020 |
| A King & SON (Auchterarder) Limited | Construction | 1982 |
| A L M Properties Limited | Real estate | 2000 |
| A LA Cart Aberdeen Ltd | Hospitality | 2021 |
| A Lang Consulting Limited | Professional & scientific | 2019 |
| A Life Reimagined Ltd | Other services | 2026 |
| A Lifestyle Choice Ltd | Wholesale & retail | 2025 |
| A M Forsyth Holdings Ltd | Financial services | 2006 |
| A M Interiors Limited | Manufacturing | 2007 |
| A M Jones Property Ltd | Construction | 2025 |
| A M Osullivan Ltd | Other services | 2013 |
| A M Properties (Bonnyrigg) Limited | Financial services | 2000 |
| A M Super Ltd | Wholesale & retail | 2023 |
| A M Taxis Limited | Extraterritorial | 1997 |
| A M Timber Limited | Agriculture & fishing | 1997 |
| A N Metering Ltd | Construction | 2025 |
| A Place in Childhood CIC | Professional & scientific | 2022 |
| A Plan Ahmad Limited | Wholesale & retail | 2025 |
| A Plus Barber Ltd | Other services | 2024 |
| A Plus Home Improvements Ltd | Construction | 2019 |
| A Priori Designs Limited | Professional & scientific | 2004 |
| A Quiet Room Limited | Real estate | 2021 |
| A R National Group Limited | Administrative & support | 2025 |
| A R PVT Ltd | Transport & logistics | 2023 |
| A RAE Contracting Holdings | Financial services | 2026 |
| A Ryder Properties Limited | Real estate | 2020 |
| A S Dunedin Property Ltd | Real estate | 2024 |
| A S L P 50 | | 2000 |
| A S L P 51 | | 2000 |
| A S L P 52 | | 2000 |
| A S L P 60 | | 2001 |
| A S L P 61 | | 2001 |
| A S L P 62 | | 2001 |
| A S L P 63 | | 2001 |
| A S L P 64 | | 2001 |