Masterworks Chorale of Carroll County
- A nonprofit community ensemble owned and operated by the singers in Westminster.
- http://www.masterworksofcc.org/

Columbia Pro Cantare
- Columbia-based choir that performs music ranging from opera and oratorio to showtunes and spirituals. Soloists, concert schedule, reviews, auditions.
- http://www.procantare.org/

Arundel Vocal Arts Society
- A non-profit organization, formed to support the art of choral singing through the study and performance of a wide variety of musical styles. Anne Arundel County, Annapolis.
- http://www.arundelvocalarts.org/

Hagerstown Choral Arts
- Mixed and women's choirs that perform tradional classical religious music. CDs, concerts, membership.
- http://hagerstownchoralarts.org/

Baltimore Choral Arts Society
- Full chorus, orchestra, and chamber chorus that performs throughout the mid-Atlantic region. Concert listings, community forum, and reviews of past shows.
- http://www.baltimorechoralarts.org/

Central Maryland Chorale
- Group that performs masterworks from the western fine art tradition, and other regions. Includes performance calendar, and profiles of key members.
- http://www.jca.umbc.edu/~los/

The Handel Choir of Baltimore
- Community choral society with adult and children's choirs specializing in the music of the Baroque. Includes season schedule, ticket information, profile, audition information and links.
- http://www.handelchoir.org/

Choral Arts Society of Frederick
- Local society promoting choral group singing. Membership, concerts, repertoire and music samples.
- http://www.casof.org/

Cantate Chamber Singers
- Montgomery County vocal ensemble performing a cappella and accompanied choral works. Offers concert schedule and audition information.
- http://www.cantate.org/

The Annapolis Chorale
- 180-voice choir conducted by J. Ernest Green. Contact information, concert schedule, information about youth chorus.
- http://www.annapolischorale.org/