Nonprofit Memberships

Membership Overview

OMSI offers nonprofit memberships to social service, education, and community organizations that provide services to families or individuals. With a nonprofit membership, your organization can offer your clients access to the museum for regular trips and add a valuable community resource to their support system.

Ready to purchase?

Nonprofit Memberships can be purchased in person at the Museum or over the phone. Please contact Concierge at (503) 797-4000 or for more information.

Nonprofit Membership Basic



Annual membership for general admission

Valid for up to 15 people per day

Nonprofit Membership Plus



Annual membership for general admission

Valid for up to 30 people per day

Policies + Limitations

  • Qualifications: Nonprofit memberships are available for purchase to social service, education or community organizations  that provide services to families or individuals. Each branch or facility of larger organizations may be asked to purchase individual nonprofit memberships.
  • Using the membership: The membership may only be used by the member organization’s staff or volunteer chaperones when bringing clients to the museum. Staff and volunteers must show adequate proof of affiliation for admission. Proof of affiliation can include: letter or email containing organization’s letterhead/email signature, or staff ID or business card from the organization. The membership is not for personal employee or volunteer use. Organizations are responsible for preventing misuse by their employees and volunteers.
  • Staff to client ratios: There must be a ratio of one chaperone for every five youth or individuals requiring a caregiver per visit
  • Additional experiences + discounts: Empirical Theater, Submarine, Planetarium, and Featured Exhibit tickets are available for an additional charge. Membership general admission tickets cannot be combined with field trip discounts. 

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