Trellis Advisors, LLC Share: Financial Services / Advising Trellis Advisors, LLC Visit Website Request Info 301 W. Umptanum Rd. Suite 5 Ellensburg, WA 98926 (509) 925-6080 (206) 522-5324 (fax) Map What's Nearby? Distance: 5 10 15 20 25 50 mi.