Current members include composers Matt Darriau, alto saxophone, clarinet, and kaval, and Frank London, on trumpet and keys, Paul Morrissett playing bass and tsimbl cimbalom, vocalist Lorin Sklamberg on accordion and piano, Lisa Gutkin on violin and vocals, and David Licht or Richie Barshay on drums.

[citation needed] In addition, Boo Reiners, Susan McKeown, Joshua Nelson, Chava Alberstein, and Aaron Alexander have frequently collaborated with the band.

[5] Trumpeter Frank London composed the score for Pilobolus Dance Theater's work, Davenen, which the band performed.

The Klezmatics have recorded for Rounder, Piranha, Xenophile, Flying Fish, and the now-defunct Jewish Music Group.

Other key collaborations include the music to Tony Kushner's adaptation of The Dybbuk, ""A Dybbuk: Between Two Worlds”",[9] The Well: Klezmatics with Chava Alberstein[10] in which poetry by several prominent Yiddish poets was set to music, and Brother Moses Smote the Water with Jewish gospel-style singer, Joshua Nelson.