Nexxa.ai is augmenting the engineered transition. Location: San Francisco How we met: Old-fashioned cold call Propeller theme: Ocean Industrials Propeller investment stage: Seed

Orpheus Ocean provides flexible and cost-effective solutions for truly scalable deep ocean intelligence. Location: New Bedford, MA How we met: Incubated at WHOI Propeller theme: Ocean Industrials Propeller investment stage: Pre-Seed

Vema stimulates geologic hydrogen. Their low-cost hydrogen will be a key unlock for maritime transition fuels, among others. Location: Orleans, France How we met: Our friends at Marble Propeller theme: Ocean Industrials Propeller investment stage: Seed

Vatn is developing low-cost, mixed-mission autonomous underwater vessels (AUVs) that accelerate the path to collecting more information from the subsurface ocean environment. Location: Portsmouth, RI How we met: Through our network Propeller theme: Ocean Industrials Propeller investment stage: Seed

Indeximate provides subsea energy cable intelligence, real time cable health, and maritime domain awareness. Location: London, UK How we met: Our operating partner Propeller theme: Industrials Propeller investment stage: Seed

Blue Energy uses shipyard manufacturing to reduce the cost and build time of small modular nuclear power plants. Location: Washington DC, USA How we met: on zoom, Jake pitching us with his newborn strapped to his chest. Propeller theme: Ocean Industrials Propeller investment stage: Seed

Aikido Technologies unlocks the opportunity for floating offshore wind power. Their novel, up-ending platform will dramatically reduce costs for floating offshore wind projects. Location: San Francisco, CA, USA How we met: Through our network Propeller theme: Ocean Industrials Propeller investment stage: Seed

Allium addresses one of the hardest problems in the ocean-building things that last. Their stainless clad rebar will change how we scope ocean and coastal builds. Location: Boston, MA, USA How we met: Jake Russell found 'em! Propeller theme: Ocean Industrials Propeller investment stage: Seed

Calcarea captures and stores emissions from maritime shipping by harnessing the Earth’s natural response to excess CO2. Location: Los Angeles, CA How we met: A friend asked Reece if he'd "heard what Jess is working on?" Propeller theme: Ocean Carbon Propeller investment stage: Seed

Rewind is accelerating the natural process of taking terrestrial waste from the field or forest, to the bottom of the ocean.