Here are all of the ones that are listed in ANN's encyclopedia. I have seen a couple of them. If you have any questions just ask.
Maria-sama ga Miteru (OAV) 2006-11-29
Maria-sama ga Miteru ~Haru~ (TV) 2004-07-04 to 2004-09-26
Mnemosyne - Mnemosyne no Musume-tachi (OAV) 2008-02-03
Maria Watches Over Us (TV) 2004-01-07 to 2004-03-31
Simoun (TV) 2006-04-03 to 2006-09-25
Kimi ga Aruji de Shitsuji ga Ore de (TV) 2008-01-05
Candy Boy (ONA) 2007-11-22
Strawberry Panic! (TV) 2006-04-03 to 2006-09-25
Kasimasi - Girl Meets Girl (TV) 2006-01-11 to 2006-03-29
Kannazuki no Miko (TV) 2004-10-02 to 2004-12-18
Blue Drop: Tenshi-tachi no Gikyoku (TV) 2007-10-02
Yami to Bōshi to Hon no Tabibito (TV) 2003-10-02 to 2003-12-25
ICE (OAV) 2007-05-25