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Propeller's blog includes updates from our portfolio, new investments, and thought leadership from Propeller's perspective investing at the ocean's edge.

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Technology Ocean Founders Startups Climate

The Weighing Machine: earth’s physical shifting realities are shifting markets

When I was 13, my dad gave me Benjamin Graham’s The Intelligent Investor (nerd alert in the Fox household). Ostensibly this is one of Warren Buffet’s favorite books and was to be the undergirding for sound financial...

Steven Fox Oct 14, 2025
Climate

Climate Intuition, Founder Resilience, and the Power of the Pivot

Reece Pacheco Oct 3, 2025
Ocean MBA Startups Investing

Diving In - What A Summer in Climate Venture Really Teaches

Venture-backable climate startups span everything from alternative plastics and water filtration to building materials and green chemicals. Over the past few months, I’ve helped Propeller recruit and screen founders for...

Eliza Harrison Aug 22, 2025
Founders Startups Investing

Ocean Innovation is All Over the Climate Market Map

Each year, our friends at CTVC release the iconic “climate market map”—a crisp snapshot of where innovation and capital are flowing across seven key sectors: Energy, Transportation, Food and Ag, Industry, Built...

Eliza Harrison Jun 24, 2025
Technology Ocean Founders Startups Climate

Rethinking Ocean Energy, Part 2: Where the Energy Goes

In part one of this series, I explored how we're rethinking sources of ocean energy — from thermal gradients to nuclear SMRs to currents. But understanding energy in the ocean means looking at both sides of the...

Steven Fox Jun 2, 2025
Technology Ocean Founders Startups Climate

Rethinking Ocean Energy, Part 1: A New Way of Looking at How the Energy Transition will be Powered

When most people think of energy from the ocean, four primary sources typically come to mind: offshore wind, offshore oil and gas, wave, and tidal power. And for good reason — these are the legacy sectors that have...

Steven Fox May 14, 2025
Propeller Founders

Propeller at SFCW 2025 "What does it mean to lead in this climate?"

“In the ocean, no two waves are the same, and no two days are the same.” Wise words from professional big-wave surfer Greg Long and that was just one of many lessons learned from a life in the ocean that are extremely...

Reece Pacheco Apr 28, 2025
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