Onebrief offers what it calls an “operating system for modern command,” allowing military staffs to build plans, coordinate across distributed teams, and integrate decision-making workflows in one unified environment. The Honolulu-based company’s core product is now expanding beyond planning into wargaming, simulation, and live decision support, aided by its recently announced AI Assist capability. To accelerate this push, Onebrief acquired Battle Road Digital, a defense innovation firm that applies gaming technology to national security problems, instantly adding real-time simulation features to the platform. Leadership positions the combined offering as a single ecosystem that can learn from operational data and continuously improve commanders’ speed and confidence. The company has gained meaningful traction inside the U.S. military, which investors cite as proof of market fit. Financially, Onebrief just closed a $200 million Series D round that values the company at $2.15 billion, more than doubling its prior post-money valuation. The fresh capital will be used to scale the business, expand AI capabilities, and harden the platform for wartime resiliency.

Total raised

$323M

Funding rounds

4

Latest round

Series D

Latest activity

Jan 2026