As The Long Now Foundation enters its third decade, our efforts to create a truly long-term institution are focused on The Fund of the Long Now.
The Fund is a long-term capital management tool designed to provide Long Now with the stability to sustain itself over the long-term, and the flexibility to react strategically to opportunities and challenges that may arise in the future.
The Fund itself is thematically invested to leverage the slow realization of long-term trends, and its gradual development is overseen by a special advisory council of investors and entrepreneurs with expertise in long-term capital management.
Please consider helping The Long Now Foundation become a truly long-term organization by making a tax-deductible donation to The Fund of the Long Now this giving season.
To show our sincere appreciation for your support, we will be recognizing donations of $1,000 or more with an extraordinary gift that we couldn't be more excited to announce—a Rosetta Wearable Disk!
Together we can leave the next generation of long-term thinkers with more possibilities than we inherited. Together we can be good ancestors.

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The Long Now Foundation
Fort Mason Center
2 Marina Blvd, Bldg A
San Francisco, CA 94123 - 1284

The Long Now also accepts stock transfers through First Republic Securities. Please email services@longnow.org for details.

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The Long Now Foundation is a 501 (c)(3) nonprofit corporation;
our Tax ID number is 68-0384748. Additionally, Your company might offer matching grants for donations you make. Please email services@longnow.org for details.

If you'd like to be part of something ambitious, visionary, and downright monumental, consider making a donation or joining as a member of Long Now. In return, Long Now offers you the opportunity, as Stewart Brand says, to be instructed, amused and even inspired. Your contribution is tax deductible, of course.

Seminar Sponsorship

Our monthly Seminars About Long-term Thinking are made possible through the generous support of our Seminar Sponsors and Long Now Members.

We offer $5,000 and $15,000 annual Sponsorships; $15,000 Sponsors are invited to attend dinner with the speaker after each Seminar, and $5,000 Sponsors may choose to attend any four dinners during the sponsored year.

Contact donate@longnow.org

The Long Now Foundation is entirely funded by private gifts and grants from supporters like you. Please consider making a tax-deductible donation today—or become a member and join our community of long-term thinkers from around the world. Membership starts at $8/month, includes complimentary event tickets, and only takes a few minutes to set up.

Your support will directly impact our mission to foster long-term thinking and responsibility in the framework of the next 10,000 years.

Please don't forget to ask your employer about any gift matching opportunities.

Clock Interest List

The full scale 10,000 Year Clock is now under construction. While there is no completion date scheduled, we do plan to open it to the public once it is ready.


If you are interested in volunteering your time and expertise to Long Now, tell us about yourself in an email to services@longnow.org.