| Contact the Great Western Council of OptometryHave a Question?GWCO is a professional organization and does not have any employees of its own. Our work is made possible by our volunteers and through administrative support provided by Update Management, Inc. Update Management serves many other local, regional, and national nonprofit associations.
 To contact GWCO, you can write, call, or send us an email. When you call the GWCO Office, any one of the Update Management staff will be able to help you.
 
GWCO OfficeBusiness Hours: Monday – Thursday, 8:00 AM – 4:30 PM and Friday, 8:00 AM - 3:00 PM (Pacific Time)Phone: 503-546-0110
 Email: [email protected]
 Address:
 9620 SW Oak St. Ste 565
 Tigard, OR 97223
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