GoKawiilQuartermaster raises $140M Series B led by Insight Partners for maritime sensors
Arlington-based Quartermaster has closed a $140 million Series B just months after a $43 million Series A, with about $100 million in equity from Insight Partners, Overmatch Ventures and existing backers, plus a $40 million debt facility from Stifel. The company makes 'SmartMast,' a hardware package of cameras and radios mounted on ship masts that delivers real-time maritime data beyond basic AIS location pings.
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CEO Neil Sobin says demand accelerated amid shipping disruptions tied to the Iran conflict, suggesting geopolitical instability is pushing governments, shippers and insurers to seek richer, real-time ocean awareness rather than relying on sparse location data. The rapid follow-on raise and involvement of a defense-focused fund could signal growing investor appetite for infrastructure that sits at the intersection of commercial shipping and security.
- Quartermaster raised $140M Series B, months after a $43M Series A.
- Insight Partners led the round with Overmatch Ventures and Stifel debt financing.
- Its SmartMast hardware provides real-time maritime data beyond standard AIS tracking.
Source: techcrunch.com — Sean O'Kane, 2026-09-28
Published there as: “Maritime intelligenc startup Quartermaster raises another $140M”
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