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Society of Independent Show Organizers
siso.org
4 Contacts
) 567-6465 Katherine Truesdale, Membership & Sponsorship Katherine Truesdale, Membership & Sponsorship Contact Katherine: Katherine@SISO.org +1
mailto:anna@SISO.org?subject=SISO%20Inquiry
anna@siso.org
mailto:anna@SISO.org?subject=SISO%20Inquiry
anna@siso.org
24 Jan 2026