Additional Ventures is a purpose-driven organization leveraging evidence-based research and deep subject matter expertise to make an outsized impact.
Our relentless optimism powers bold, high-risk innovations to solve some of humanity’s most complex challenges.
President & Co-Founder
Kirstie Keller, PhD
Vice President of Programs
Kaitlin Davis, PhD
Program Manager, Research and Grants
Courtney Steger, PhD
Program Officer, Scientific and Community Engagement
Susan Martelle, PhD
Program Manager, Research & Grants
Program Manager, Project Singular
Climate & Democracy
Program Director, Climate and Democracy
Antonius Gagern, PhD
Program Director, Ocean Carbon Dioxide Removal
Additional Ventures is comprised of multiple entities that make grants and/or investments in service of our mission to shape a healthier, more equitable world, including Additional Ventures Foundation, a nonprofit 501(c)(3), Additional Ventures LLC, and a donor advised fund of the Silicon Valley Community Foundation. Additional Ventures’ activities do not represent the views or priorities of any other organizations its founders may be connected to.
Subscribe for Updates
We’ll keep you posted about our work across Additional Ventures.