Montavilla Jazz Festival – August 19-20, 2017 Portland Metro Arts – 9003 SE Stark St, Portland, OR 97216 Sponsors Montavilla Jazz Festival is sponsored almost entirely by local businesses and organizations. To learn more about becoming a sponsor, please click here. Artists Montavilla Jazz Festival features a curated program of Portland-based artists performing new music. For more information about artists present and past, please visit our artists page. Volunteer!