Our vision.
Healing our planet.

Precipitating
A Greener Future.

Minus Materials, is a pioneer developer of biologically-derived precipitated calcium carbonate (bioPCC). Leveraging the power of microalgae, the company has created a sustainable, high-performance alternative to traditional PCCs. Minus Materials is committed to unlocking new possibilities for this essential mineral across a diverse range of industries.

Our story.
Meet our founders.

Sarah Williams, Ph.D.

CEO, Co-founder

Ph.D., University of Colorado

Wil V. Srubar III, Ph.D.

Co-founder

Ph.D., Stanford University

Our funders and supporters.
Catalysts to change.