His work has been performed at the Merkin Concert Hall, the Renee Weiler Concert Hall at the Greenwich House Music School, the Merce Cunningham Dance Studios, the Steve Reich Festival at the Netherlands' Royal Conservatory of The Hague, the Tribeca New Music Festival, and the Brooklyn Spring Jazz and Pop Festival. Phillips is also the founder and conductor of Numinous, a unique ensemble of classical and jazz musicians that has performed at a wide variety of performing arts centers and music venues throughout New York. Numinous has released two studio albums under Phillips' direction-The Music of Joseph C. Phillips Jr. and Vipassana-with a third recording for New Amsterdam Records on the way