He has been commissioned by festivals and venues including Festival d'Automne, Rencontres Chorégraphiques, Ircam, Centre Pompidou, YCAM, Tanz im August, Ballett Frankfurt, Danspace/NYC and Théâtre National de Chaillot.
His work with live musicians has led him to collaborate with Alberto Posadas (Glossopoeia), Diane Labrosse (Double Story), Lorenzo Bianchi (©oPirates, Homo Ludens), Eric-Maria Couturier (Op.Infinity and Homo Ludens), Wolfgang Zamastil (Homo Ludens and As If Stranger), Arto Lindsay (Muscle) and Hubert Machnik (Civic Mimic).
Collaborations with architects and architectural designers include work with François Roche (Civic Mimic), Virginie Mira (Stranger Trilogy, Glossopoeia), Peter Zuspan (Multinatural (blackout) and Muscle) and Alexander Kada (Venice Biennale of Architecture).
Richard Siegal has been Artist/Choreographer-in-Residence at ZKM/Karlsruhe, Bennington College and The Baryshnikov Arts Center. As a faculty member of the American Dance Festival, he curated the annual Forsythe Festival. Siegal is a MacDowell fellow and honorary member of The Bolshoi Ballet's Benoit de la Danse."