Pillar Insurance, Inc. Categories Insurance 3500 S Western Ave Sioux Falls SD 57105 (605) 336-0970 (800) 425-9908 (605) 336-2019 Send Email Visit Website Rep/Contact Info Don Koster × Don Koster Phone: (605) 336-0970 Cell Phone: (605) 359-6676 3500 S Western Ave Sioux Falls SD 57105 Joe Pillar × Joe Pillar Phone: (605) 336-0970 Cell Phone: (605) 351-0616 3500 S Western Ave Sioux Falls SD 57105 Share × Print Email Facebook Twitter LinkedIn Tell a Friend ×