Millennia Music - Music publishing with focus on double bass and harp. - http://www.millenia-music.com/
Mewzkl Publications - Publishers of new music for elementary and middle school strings. Site includes catalog, and order form. - http://www.mewzkl.com/
Velke Publishing - [Glen Echo, MD] Publisher of music for string orchestra, symphonic band and small ensembles . - http://users.erols.com/velkepub/
Slava Publishing - Music and materials for double bass and violoncello. - http://www.slavapub.net/