Startups & Funding
Quartermaster raises $140M Series B for ocean data network
Arlington, Virginia-based maritime intelligence startup Quartermaster raised a $140 million Series B, just months after a $43 million Series A, in a round preempted by Insight Partners.
Quartermaster, which builds weather-hardened sensors to capture data and generate insights about maritime activity, closed a $43 million Series A in May. The idea proved popular enough that the startup has now closed a much larger Series B: $140 million. Founder and CEO Neil Sobin said Insight Partners, a software-focused venture firm, preempted the round, and that investor interest was helped by the war in Iran and the shipping chaos it caused. “I think we’ve gained huge amounts of conviction in the core thesis,” Sobin said. “A big part of the story for us this year was, events in the world drive that clarity and drive that conviction and urgency, and when you see that, you gotta seize the opportunity.”
About $100 million of the Series B came from Insight and new investor Overmatch Ventures, a defense-focused firm, along with existing backers such as First Round Capital. The remaining $40 million came as a debt facility from investment bank Stifel. “Quartermaster is building a distributed network for the ocean, where reliable, real-time data has been difficult to come by,” Nick Sinai, managing director at Insight Partners, said in a statement.
Quartermaster’s hardware, called “SmartMast,” integrates cameras and radios into a package mounted on a ship’s mast that captures and relays real-time maritime data — going well beyond the current standard, AIS (“automatic identification system”), which is mostly a series of location pings. The company says this real-time data can help ships avoid collisions, help operators understand congestion in shipping lanes, and aid in rescuing lost mariners, among other uses. Each SmartMast records tens of gigabytes of data per day, and Quartermaster and its customers are still finding new applications for it.
More than 650 vessels are now equipped with SmartMast across 25 countries, and the startup has shipped over 800 units to customers; the gap reflects the fact that Quartermaster is about to start deploying SmartMast to entire fleets rather than individual ships. The company has doubled its manufacturing capacity to keep up with demand. “This is an ignored field,” Sobin said. “Mariners around the world have been ignored by technology for a really long time, and so when they meet us, they’re so excited, because they’re like: ‘Oh, I have so many ideas, let’s work on them.’”
Why it matters
Quartermaster is betting that real-time maritime awareness — not just location tracking — becomes standard infrastructure for shipping, insurance and defense-adjacent industries, turning what the company calls the ocean’s biggest blind spot into a data source governments and insurers can act on.