Quartermaster
Arlington, Virginia-based startup using weather-hardened sensors to build a distributed data network for maritime activity.
- Industry
- maritime intelligence, sensor data networks
- Location
- Arlington, VA
- Website
- https://www.quartermaster.us
About
Quartermaster uses weather-hardened sensors to capture data and generate insights about maritime activity, and describes its goal as a distributed data network for the ocean. TechCrunch reports that it closed a $43 million Series A in May 2026, which the company says First Round Capital and Quiet Capital co-led.
Neil Sobin is founder and CEO, according to TechCrunch.
Funding history
| Round | Date | Amount | Lead |
|---|---|---|---|
| Series B 2026 | 2026-09-28 | $100M | Insight Partners |
Investors
- Insight Partners lead
- Overmatch Ventures participant
- First Round Capital participant
- Quiet Capital participant
- Steel Atlas participant
- TMV participant
Sources
Last verified:
- https://www.quartermaster.us/blog/the-price-of-not-knowing
Type: company announcement. Accessed 2026-10-06.
Quartermaster blog post. Says it raised $140 million: a $100 million Series B led by Insight Partners with new participation from Overmatch Ventures, plus a $40 million venture debt facility from Stifel. First Round Capital, Quiet Capital, Steel Atlas and TMV returned. - https://techcrunch.com/2026/09/28/ocean-surveillance-startup-quartermaster-raises-another-140m/
Type: reputable publication. Accessed 2026-10-06.
TechCrunch article dated 2026-09-28. Source of the Arlington, Virginia location. Its headline describes a $140 million Series B, and its body explains that about $100 million came from investors and $40 million from a Stifel debt facility.