Maritime technology company Quartermaster has raised $43 million in Series A funding to expand its vessel-based maritime sensing and data network, the company announced.
The funding round was co-led by First Round Capital and Quiet Capital, with participation from TMV Logistics, Steel Atlas, BoxGroup, Operator Partners, Shorewind Capital, and investor David Adelman.
Quartermaster said the funding will support expansion of its SmartMast onboard sensing and edge computing platform, which is installed aboard working and commercial vessels. The company said the system captures real-time operational and environmental data, including vessel activity, video, geolocation, radio signals, and anomaly detection, then processes the information locally before feeding it into the company’s software platform.
According to the company, more than 600 vessels across 25 countries and four continents are currently active in the network, covering more than 10 million square miles of ocean to date, including 2.8 million square miles in April alone.
Quartermaster positions the system as an alternative to traditional maritime monitoring infrastructure such as satellite constellations, coastal radar systems, and standalone sensor buoys. The company said the existing commercial fleet provides a more scalable and cost-effective sensing network by leveraging vessels already operating across shipping lanes, fisheries, offshore regions, and coastal waterways.
The company said the platform is intended to support maritime operators including insurers, government agencies, shipping companies, offshore energy operators, and autonomous vessel developers by improving access to real-time maritime awareness data.
Quartermaster also said its network has assisted in more than 20 mariner rescues to date.
The company plans to use the new funding to expand SmartMast deployments into additional regions and vessel classes while growing its engineering, product, analytics, and go-to-market teams.
