The Indialantic Chamber Singers
- A non-profit chamber choir based in the town of Indialantic, in Brevard County, Florida. Photos, members, upcoming concerts, and past programs of the group.
- http://www.indialanticchambersingers.org/

In Choro Novo
- A four-part professional choral ensemble based in Boston, MA, performing disparate styles of a cappella and accompanied music, ranging from early renaissance to jazz.
- http://www.inchoronovo.com/

Ionian Singers, London
- Chamber choir of about 35 singers with a national and international reputation based on performances and recordings. London, England.
- http://www.ioniansingers.co.uk/

Italian Madrigal Group
- Plays the secular music of 16th/17th century Italy and consists of 5 singers, 2 violinists, a theorbo player and continuo. London, England.
- http://www.landmarknet.co.uk/italianmadrigalgroup/