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

We're hiring an Operations Leader! This is a broad role with a lot of opportunity for impact, most notably making moments like the one above happen, featuring our 2024 Ocean MBA cohort. Overview: As our Operations Leader, you’ll be the go-to person for all things operations, offering support across Partners, Limited Partners (LPs), portfolio companies, and service providers. You’ll help ensure the smooth running of our day-to-day tasks, and occasional events and gatherings. We’re looking for someone with high EQ, strong organizational skills, and experience in operations or project management. Our preference is for this person to live in the Greater Boston area with a hybrid in-person/remote schedule, though we'll consider fully remote candidates as well.

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

Inspired. That’s the feeling we get from working closely with a room full of ambitious, climate-tech entrepreneurs during our most recent Ocean MBA.

If I asked you to pick three US cities with the strongest “ocean” vibes, you would probably name San Diego, Miami, LA, maybe even Boston. New York likely wouldn’t cross your mind - but that may be changing. In the past few years, NYC has emerged as a rapidly growing leader in climate and ocean tech. From its early origins as a major port, to the thriving regional aquaculture industry, to its pole position in the national push for offshore wind (not to mention year round surfing in Far Rockaway), the city has numerous factors contributing to its history and growth as an ocean hub.

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

Reducing “launch costs” for ocean tech will unlock the blue economy, the same way the private space sector led to a boom in orbital observation and communications.