Quartermaster - GoKawiil

Quartermaster 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.

techcrunch.com · 2026-09-28

Quartermaster closes $140M Series B for maritime sensor network

Arlington-based Quartermaster raised a $140 million Series B just months after closing a $43 million Series A in May, according to CEO Neil Sobin. Roughly $100 million came from equity investors led by Insight Partners, with new backer Overmatch Ventures and existing investor First Round Capital, while the remaining $40 million came as debt financing from Stifel. The startup builds weather-hardened camera and radio hardware called SmartMast that mounts on ship masts to deliver real-time maritime data beyond basic AIS location pings.

techcrunch.com · 2026-09-28