Propeller

Propeller provides early-stage capital and operational support to startups building ocean-focused climate technologies. It operates as a venture capital fund investing across pre-seed to Series A and runs an accelerator (Ocean MBA) to help founders refine business models and go-to-market strategies. The firm partners with ocean science institutions and works with companies developing robotics, automation, digitalization, decarbonization, marine carbon dioxide removal, and persistent sensing and monitoring technologies. Propeller invests globally from its Boston base to scale ocean-climate solutions across energy, shipping, subsea surveying, and marine organics markets.