Tross Consulting, Inc. Share: Consultants - Land Use Tross Consulting, Inc. 1720 Liberty St SE Salem, OR 97302 (503) 370-8704 (503) 370-8704 (fax) Rep Info Map Whom to Contact Jeff Tross 1720 Liberty St SE Salem, OR 97302 What's Nearby? Distance: 5 10 15 20 25 50 mi.