National Headquaters
http://www.sinfonia.org

Lyrecrest
http://www.lyrecrest.net

Xi Chapter
http://www.ku.edu/~sinfonia

Pi Upsilon Chapter
http://lamar.colostate.edu/~sinfonia

Beta Delta Chapter
http://bdpma.org

Alpha Phi Chapter
http://www.fhsu.edu/music/phimualpha

Sigma Alpha Iota - Kappa Upsilon Chapter
http://www.k-state.edu/sai/