Contact COSI Membership Department


Phone:

614.228.COSI (2674)
The COSI Call Center is open Monday - Saturday from 9am - 4pm EST.

E-mail:

membership@mail.cosi.org
E-mails are answered during regular business hours Monday - Friday.

Mail:

COSI Columbus
Attn: Membership Department
333 W. Broad Street
Columbus, OH 43215
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