Quartermaster Series B (2026)
Quartermaster raised $100 million in a Series B round, announced on 2026-09-28. The round was led by Insight Partners.
- Company
- Quartermaster
- Round type
- Series B
- Date
- 2026-09-28
- Amount
- $100M
- Industry
- maritime intelligence, sensor data networks
- Location
- Arlington, VA
Summary
Quartermaster announced a $100 million Series B on 2026-09-28, led by Insight Partners, which TechCrunch says preempted the round. Overmatch Ventures joined as a new investor, and First Round Capital, Quiet Capital, Steel Atlas and TMV returned. The company also took a $40 million venture debt facility from Stifel. That debt is not counted in the amount shown here, although TechCrunch reports the total as $140 million.
Investors
Lead
- Insight Partners lead
Participating
- 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.