Quartermaster, an Arlington, Virginia-based startup, announced a $43 million Series A funding round in May 2026 to expand its maritime sensor platform, called SmartMast — a package of weather-hardened cameras and radios that mounts on a ship’s mast and transmits real-time data to an analytics platform.
The round was co-led by First Round Capital and Quiet Capital. First Round partner Bill Trenchard, who led Uber’s seed round in 2010 and is an investor in Flexport, said the company is “reshaping how maritime operators understand and act on the world’s oceans” and that the team had solved the cost-scaling problem that has stymied previous attempts to bring intelligence to the ocean.
Quartermaster CEO and founder Neil Sobin says SmartMast is a significant upgrade over AIS — the automatic identification system currently used to track vessels. He describes AIS as fundamentally flawed: it is opt-in, relies on self-reported data, and can be spoofed or simply ignored. “If you want to do anything nefarious on the ocean, from petty smuggling all the way up to sanctions evasion, you can simply opt out of the system, or spoof it,” Sobin told TechCrunch.
To date, more than 600 SmartMast-equipped ships have covered 10 million square miles of ocean. Quartermaster says the platform has already assisted in over 20 rescues of mariners at sea. The company positions SmartMast as an infrastructure layer for a range of applications, including ship identification, marine autonomy training data, scientific research, and government intelligence.
Sobin said a large portion of the new funding will go toward hiring engineers. He argued that the ocean represents an unusually accessible frontier for software talent, noting that limited prior development in the space means individual engineers can make a measurable impact quickly.
Source: TechCrunch