Company intelligence
As of September 28, 2026, Quartermaster has raised at least $100M in equity across 1 sourced funding round.
Quartermaster builds SmartMast ship-mounted sensors for maritime awareness and reported a $140 million Series B in September 2026.
Quartermaster is an Arlington, Virginia company that builds a maritime awareness network from sensors mounted on commercial ships. Its hardware, called SmartMast, packages cameras and radios on a ship's mast and relays real-time maritime data, according to TechCrunch. The company's website describes the product as a distributed network that turns civilian and commercial fleets into a persistent maritime sensing layer, using vessel-mounted HD video, geolocation and AI.[1],[2]
TechCrunch names governments, shipping companies and insurance providers as the users of Quartermaster's data and lists uses such as helping ships avoid collisions, understanding congestion in shipping lanes and rescuing lost mariners. The company's about page names coast guards, navies, insurers and researchers as the groups it serves.[1],[3]
Quartermaster's website reports 600+ sensors deployed across over 25 countries, 400k vessels identified without AIS and 10 Million+ miles travelled by the SmartMast fleet. These are company-reported figures and the site does not date them.[2]
Quartermaster does not state a founding year in the sources reviewed. The website footer names the operating entity as Quartermaster AI Inc and gives an Arlington, Virginia address.[2]
In 2026 Quartermaster saw rising demand, according to TechCrunch. Sobin said interest in the company was helped by the war in Iran and the shipping chaos it has caused, and that the company has doubled its manufacturing capacity while it continues to adjust the SmartMast design so it can be built faster.[1]
Quartermaster's Series B was preempted by Insight Partners, Sobin said, and Insight managing director Nick Sinai said in a statement that Insight wanted to lead the investment. Overmatch Ventures, a defense-focused firm, joined as a new investor, and existing backers such as First Round Capital also took part.[1]
Quartermaster said at the Series A stage that it would use the capital to expand SmartMast deployments into additional vessel classes and geographies, and to grow its engineering, analytics, product and go-to-market teams.[4]
No valuation has been disclosed for Quartermaster in either round. The articles reviewed also do not state a total funding figure or the size of any earlier round.[1],[4]
Matt Beck is chief operating officer of Quartermaster. The company site says he has two decades of operational leadership across the Navy, the Department of State and the commercial technology sector, spent 13 years on active duty in the US Navy and continues to serve as a reservist, and previously led Navy growth at Scale AI alongside Sobin.[3]
Steve Ribaudo is listed on the Quartermaster site as CGO. The company site says he has over two decades of experience building and deploying commercial technology for government and enterprise customers, most recently as VP of Growth at Anduril and previously at DARPA and in federal service.[3]
Quartermaster has not named customers in the sources reviewed. TechCrunch reports that the company is about to start deploying SmartMast to entire fleets, which it reads as a sign that early adopters are buying in, and that Sobin said the company talks with people across the maritime industry, not only vessel owners and operators. The company's website lists Energy and Oceanography solution pages and a Mariners page.[1],[2]
Is something wrong on this page?
| Date | Round | Amount | Valuation | Lead investors | Source |
|---|---|---|---|---|---|
| Sep 28, 2026 | Series B | $100M equity (+$40M debt) | — | Insight PartnersunverifiedOvermatch Venturesunverified | TechCrunchPulse story |
Equity only. “Equity raised” above sums the rounds with a dated, linked source; rumored rounds, tender offers and secondary sales are listed but not counted, and debt financing is listed separately.
Quartermaster has raised at least $100M in equity across 1 sourced funding round tracked by Value Add VC. The most recent was a $100M equity (+$40M debt) Series B in September 2026, reported by TechCrunch. Debt financing, tender offers and secondary sales are not counted.
Lead investors in Quartermaster's sourced funding rounds include Insight Partners and Overmatch Ventures. Per round: its September 2026 Series B was led by Insight Partners and Overmatch Ventures.
Quartermaster is headquartered in Arlington, Virginia, USA, according to TechCrunch.
Figures are labelled Reported (a source states it), Estimated, Derived (computed from other facts) or Rumored (in talks / unconfirmed). Rumors never replace a confirmed figure. Each figure keeps its own as-of date; history is preserved rather than overwritten.