Propeller
Propeller backs early-stage companies turning breakthrough ocean science into climate solutions built to scale.

Who they are.
Some of the most promising climate solutions are hiding in the ocean. Propeller is helping bring them to the surface. Launched in 2022 with a fund of about $117 million, the Boston-based venture firm backs early-stage companies working on marine carbon removal, cleaner shipping and ocean energy, and ocean-grown food and materials. Its partnership with Woods Hole Oceanographic Institution (a former grantee partner of Alta Futures) helps turn breakthrough ocean science into companies built to scale.





