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Purchase a Membership

Join, Renew, or Buy a Gift Membership!

A full year of FUN for one GREAT price! Become a COSI Member and receive unlimited admission to COSI, reciprocal admission to 300+ science centers, great discounts, and more! In fact, a membership will typically pay for itself in two visits or less.

NEW! Premium Membership Now Available! COSI's Premium Membership offers all your favorite membership benefits PLUS additional family-friendly benefits such as FREE reciprocal admission to over 165 children's museums and early access to COSI's little kidspace on select weekdays. View all Premium level benefits.

Select Membership Type
Premium $125 Admits two named adults and dependent children 18 and under.
Family $88 Admits two named adults and dependent children 18 and under.
Grandparent Family $88 Admits two named adults and grandchildren 18 and under.
Single Adult Family $65 Admits one named adult and grandchildren or dependent children 18 and under.
Teacher Family** $65 Admits two named adults (one of them being a certified teacher with valid teacher ID) and dependent children 18 and under.
Military Family** $65 Admits two named adults and dependent children 18 and under. Military memberships open to active or reserve military. Proof of status required.
Adult plus Guest $55 Admits one named adult and guest every visit.
Student $30 Admits one named student under the age of 18, or one college student with a valid student ID.
  Family Access $25 Admits two named adults and dependent children 18 and under. Eligibility requirements apply. Not available online. Purchase at COSI or call 614.228.2674.
Select Membership Length
1 year
2 years - Save 10%
Membership Add-ons
Add flexibilty to your membership! You can include up to two additional unnamed guests for just $25 per guest per year.
Your Membership Cost
You will be asked if this is a gift Membership at the time of billing
** Proof of teacher/military status required for new membership cards to be processed and mailed.
Upon purchase, submit name, date of membership purchase, and verification to:
Fax: 614.629.3150; Email: membership@mail.cosi.org; Mail: COSI Columbus, Attn: Membership, 333 W. Broad St, Columbus, OH 43215
 
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