Our vision.
Healing our planet.

Our solution.
Simply limestone.

We envision a world where concrete buildings and roads are carbon-storing rather than carbon-emitting. If all portland cement was manufactured using algae-grown limestone as a feedstock material, 2 gigatons of carbon dioxide would no longer be pumped into the atmosphere and more than 250 million additional tons of carbon dioxide would be pulled out of the atmosphere and stored in these structures each year.

Our story.
Meet our founders.

Danielle Beatty, M.S.

Co-founder

Ph.D., University of Colorado (2024)

Sarah Williams, Ph.D.

CEO, Co-founder

Ph.D., University of Colorado
10+ years in cement and concrete research

Wil V. Srubar III, Ph.D.

Acting CTO, Co-founder

Ph.D., Stanford University

Our funders and supporters.
Catalysts to change.

Our advisors.
Valued insights.

Catharina Alves-de-Souza, Ph.D.

Catharina Alves-de-Souza, Ph.D.

Research Professor, University of North Carolina Wilmington

Ph.D., Université Pierre et Marie Curie

Michael Guarnieri, Ph.D.

Michael Guarnieri, Ph.D.

Biological Conversion Platform Leader, National Renewable Energy Laboratory

Ph.D., University of Colorado

Jed Dean, Ph.D.

Jed Dean, Ph.D.

TEM Interpretation and R&D Roadmap for Scale-up

Ph.D., Stanford University

Anne Banta

Anne Banta

Strategic Messaging, Brand Identity, & Marketing