oSTEM thanks you for your support of monetary donations to our organization. Donations made on our website, through the MemberNova platform, are non-refundable. oSTEM is a 501(c)(3) non-profit in the United States of America and your donations may be tax deductible. Our Tax-ID/EIN is 27-1204776. Please check with your tax adviser for more information.

Shipping Policy

Physical merchandise purchased on the oSTEM website, through the MemberNova platform, will have shipping costs clearly visible, when applicable. These orders are shipped with two business days and may be sent via USPS, UPS, or FedEx; or, we may provide an option for in-person delivery, when available.

Invoice Payments

Invoice payments made on the oSTEM website, or through the Stripe platform, are subject to the terms of the invoice. Please check the original invoice for details. Questions about invoice payments should be directed to

Refund Policy

Donations, merchandise purchases, and invoice payments made on the oSTEM website, through the MemberNova platform, are not refundable and not returnable unless otherwise stated at the time of purchase.

Third-party Sites

Please note that other websites (outside of the and domains), including sites where official oSTEM merchandise may be sold, may have separate policies and terms than what you see here. When you are shopping on those sites, please confirm their policies and terms.

Contact Information

Questions about the policies here can be directed to or:

oSTEM, Inc.
2885 Sanford Ave SW #34480
Grandville, MI  49418