
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.
Meet the Team
Founders

Erin Hoffmann
Founder

Mike Schroepfer
Founder
Biomedical Research

Kirstie Keller, PhD
Vice President of Programs

Kaitlin Davis, PhD
Senior Program Manager, Research and Grants

Diane Pickles
Program Director,
Project Singular

Courtney Steger, PhD
Program Officer, Scientific and Community Engagement

Taylor MacLean
Program Manager, Project Singular

Elizabeth Ewen, PhD
Senior Program Manager, Project Singular

Daniel Radecki, PhD
Program Officer, Research and Grants
Climate & Democracy

Sasha Post
Program Director, Climate and Democracy

Antonius Gagern, PhD
Program Director, Ocean Carbon Dioxide Removal
Join the Team
Additional Ventures is currently seeking candidates for the following positions.
Biomedical Research
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.