Formed in 1945 as Pierson & Tidball, the firm originally provided Civil/Structural and Mechanical Engineering. As time passed, the emphasis of work became exclusively Structural. Upon the death of James G. (Jim) Pierson in 1968, corporate status was assumed. Operation continues on that basis today. Peder R. Golberg, S.E./P.E., and Tonya Halog, S.E./P.E. are the principals of the corporation. The current size of the firm is eight people. Our office is located in the heart of Portland, Oregon at 610 SW Alder, Suite 918 in the historic Selling Building. We are located above Rite Aid across the street from the old Meier and Frank department store (now Macy's).Since 1968 James G. Pierson, Inc. has provided structural design for projects constructed in 35 of the continental United States, Alaska, Hawaii, Puerto Rico, Australia and in several of the provinces of Canada.