ESR's main office is located in downtown Seattle near the corner of 4th Ave. and Blanchard St., about 5 miles south of the University of Washington campus.
| Main Office: Earth and Space Research 2101 Fourth Ave., Suite 1310 Seattle WA 98121 USA phone: 206-726-0501 or 0522 fax: 206-726-0524 |
Business Office: Earth and Space Research 175 Parfitt Way SW, Suite N 210 Bainbridge Island, WA 98110 phone: 206-842-4800 fax: 206-842-4044 |
| Corvallis Office: Earth and Space Research 3350 SW Cascade Ave Corvallis, OR 97333-1536 phone: 541-753-6695 fax: 541-753-1999 |
New York Office: Earth and Space Research 290 Clausland Mountain Road Upper Grandview, NY 10960-4113 phone and fax: 845-353-1733 |