Quartermaster: The Ocean’s Intelligence Layer
Quartermaster raises $43M to build the real-time intelligence layer for the ocean.
We have real-time maps for roads, flights, and packages. We don’t have a reliable map of what’s happening at sea right now, even though the ocean carries 80% of global trade, covers more than 70% of the planet, and sits at the center of trade, energy, food, and national security. Quartermaster is building that map by turning working vessels already on the water into a distributed maritime awareness network. Quiet Capital is proud to co-lead their $43M Series A.
Founder Neil Sobin is unusually well suited to build this. At Hivemapper, he helped turn cars already on the road into a distributed mapping network. At Scale AI, he saw how valuable AI becomes when it has the right data underneath it. Quartermaster brings those two ideas to the ocean.
Quartermaster has had one of the fastest commercial ramps we’ve seen, and the network is already operating across some of the world’s most important waters, including Taiwan, the Philippines, West Africa, Central America, and the Middle East. Quartermaster now has more than 600 active vessels across 25 countries and four continents, has covered more than 10 million square miles of ocean, and has assisted in over 20 rescues of mariners at sea.
That traction matters. I’ve written before about the moats that matter in the AI era, and Quartermaster is a clear example of the kind of company I think gets more durable as AI gets better. The reason is that the advantage compounds through the physical network itself. Every equipped vessel creates new live maritime data. Every new vessel expands coverage. Better coverage creates better intelligence. Better intelligence makes the network more valuable to customers across government, shipping, insurance, ports, energy, and autonomous vessels. And because this network exists in the physical world, it can’t be cloned by simply writing better code.
Quartermaster will be the intelligence layer for the ocean, the system governments, insurers, fleet operators, energy companies, and autonomous vessels rely on to understand and act on what is happening at sea. They’re based in DC and hiring aggressively across engineering, product, operations, and go-to-market. We’re grateful for the chance to partner with Neil and the whole Quartermaster team on what comes next, alongside our friends First Round Capital, TMV, Steel Atlas, Operator Partners, BoxGroup, and others.