| Altan Rio Minerals Ltd (AMO) CVE - Toronto TSX Ventures Exchange | |
| Altareit SCA (AREIT) EPA - Paris NYSE Euronext | |
| Altech Corp (4641) TYO - Tokyo Stock Exchange | |
| Altek Corporation (3059) TPE - Taiwan Stock Exchange | |
| Alten SA (ATE) EPA - Paris NYSE Euronext | |
| Alter Nrg Corp. (NRG) TSE - Toronto Stock Exchange | |
| Alterco SA (ALT) WSE - Warsaw Stock Exchange | |
| Alternatif Yatirim Ortakligi A.S. (ARFYO) IST - Istanbul Stock Exchange | |
| Alternatifbank A.S. (ALNTF) IST - Istanbul Stock Exchange | |
| Alternative Earth Resources Inc (AER) CVE - Toronto TSX Ventures Exchange | |
| Alternative Investment Trust (AIQ) ASX - Australian Securities Exchange | |
| Alternative Petroleum Technologies SA (WRR) FRA - Deutsche Börse Frankfurt Stock Exchange | |
| Alternative Petroleum Technologies SA (WRR) ETR - Deutsche Börse XETRA | |
| Alterra Capital Holdings Ltd (MXX) FRA - Deutsche Börse Frankfurt Stock Exchange | |
| Alterra Power Corp (AXY) CVE - Toronto TSX Ventures Exchange | |