American Horn Quartet: Information about upcoming concerts and master classes.
Auburn University Horn Studio: Technical articles on horn playing, a horn bibliography, horn history, information on the studio, and links.
Auburn University Marching Hornline: Horn players of the Auburn University Marching Band.
Columbus Horn Group: Member list, photographs, rehearsal information, performance schedule, and background information on the group.
Indiana Horn Ensemble: Concert information, links, pictures, and list of members.
Kumamoto Horn Ensemble: Composer and manufacturer rankings, member list and concert information.
Los Angeles Horn Club: Club history, member list, photo album, and upcoming concerts.
New England Horn Quartet: Members biographies, repertoire list, concerts, press releases and group history.
Opera North Horn Club: Music library, picture gallery, members list, and links.
Quadre: Professional horn quartet; site includes booking info and bios.
Scottish Vienna Horns: Scottish ensemble of Vienna horn players; site includes information about the Vienna horn in F.
Syracuse University Horn Studio: Information about the Syracuse University Horn Studio, including admissions, lessons, calendar of events, and horn ensemble.
The Four Hornsmen of the Apocolypse: Horn quartet; stite lists repertoire, contact and player information, and other horn resources.
University of Oklahoma Horn Studio: Articles and playing tips by Dr. Matlick, and info on the OU horn studio.