Become a Member

NumFOCUS is a 501(c)(3) nonprofit in the United States. Your tax-deductible donation supports NumFOCUS in our mission to promote sustainable high-level programming languages, open code development, and reproducible scientific research. Join us to support the open source tools you rely on every day.

Sustaining Membership (Recurring Donation)

A Sustaining Membership is a recurring payment plan. Sustaining Members provide funding that is crucial to the sustainability and success of NumFOCUS projects and programs!

Supporting Membership (Donation)

Supporting Members make a donation to support NumFOCUS projects and programs and advance our mission to promote better science through open code.

Community Membership (Free)

Show your support for the NumFOCUS mission by becoming a Community Member — it’s free to join!