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
Erin Hoffmann

President & Co-Founder

Mike Schroepfer
Mike Schroepfer

Co-Founder

Biomedical Research

Kirstie Keller, PhD
Kirstie Keller, PhD

Vice President of Programs

Diane Pickles
Diane Pickles

Program Director,
Project Singular

Kaitlin Davis, PhD
Kaitlin Davis, PhD

Senior Program Manager, Research and Grants

Courtney Steger, PhD
Courtney Steger, PhD

Program Officer, Scientific and Community Engagement

Susan Martelle, PhD
Susan Martelle, PhD

Program Manager, Research & Grants

Taylor MacLean
Taylor MacLean

Program Manager, Project Singular

Climate & Democracy

Sasha Post
Sasha Post

Program Director, Climate and Democracy

Antonius Gagern, PhD
Antonius Gagern, PhD

Program Director, Ocean Carbon Dioxide Removal

Join the Team

Additional Ventures is currently seeking candidates for the following positions. We have a fully remote workforce.

Climate
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.