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Become an SIOR

SIOR is moving! Starting January 1, 2024, please note our new address: 1307 New York Ave., NW, Ste 703, Washington, DC, 20005



SIOR Membership Affidavits

Applicants can apply online at www.sior.com/apply. Please download the corresponding affidavit below for your membership category and upload to the online application when directed. Please contact membership@sior.com with any questions.

Designee Membership

Other Membership Categories