Every public signal F4 has attached to this firm, with sources and cross-entity links.
Essay
Rodrigo Prudencio published a blog post on dual-use ocean innovation, AUVs and the climate transition, noting ~$3Bn raised by autonomous surface/underwater vessel startups.
Dual-Use, Ocean Innovation, and the Climate Transition
Reece Pacheco essay on ocean data centers, Aikido and Blue Energy portfolio companies enabling offshore compute, and the ocean 'heating up' with startup activity.
Propeller partnered with Canada's Ocean Supercluster, Katapult Ocean, S2G Investments, and Stanford Doerr School on a Market Solutions Platform to advance commercial viability of ocean-based climate solutions.
Partnership with Canada's Ocean Supercluster Market Solutions Platform
Vatn Systems raised a $60M Series A to scale autonomous underwater vehicle manufacturing for naval defense. Propeller is an existing investor (participated in earlier rounds).