The NORTHWEST IOWA SYMPHONY ORCHESTRA, entering its 22nd season under the direction of Henry Duitman, NISO comprises the finest musicians in northwest Iowa and southeast South Dakota. The orchestra's membership includes adults of all ages as well as gifted music students from elementary school through college. Thirteen of these students are recipients of scholarships from the Friends of the Symphony for the purpose of continuing their private music instruction.

Over 25 students from Dordt College Music Department are members of the orchestra and several members of the Dordt College music faculty perform as teaching principals in the orchestra.

NISO presents three concerts per season in addition to the annual Concert for Children which is given each November for over 1000 area 5th and 6th grade students.

All concerts are performed at 7:30 PM in the beautiful
B.J. Haan Auditorium on the campus of Dordt College in Sioux Center, Iowa.