To share your feedback on our website and on what causes we should research next, please submit our survey (the survey also has space for you to share whatever other thoughts you'd like to).

To share your feedback anonymously, please use this form.

To suggest a charity for us to consider, please direct the charity to our application instructions, which can be found here.

To follow our work, please click here.

To discuss our research with a member of our staff (e.g. if you're considering using our research to inform your giving), you can request a call here.

You can also reach us directly by:

  • Email: For media inquiries, please contact For questions about donating, please contact
  • Mailing address:
    1714 Franklin Street #100335
    Oakland, CA 94612
  • Phone: 415-689-5803. Your call will be directed to our voicemail. Please leave a message, and we’ll get back to you as soon as possible.

Other info

  • EIN/Tax ID (United States): 20-8625442
  • RSIN (Netherlands): 8262.78.516