Onebrief Lands $20M Series C Extension, Achieves $1.1B Valuation

The new funding will fuel Onebrief’s expansion efforts, including engineering hires, infrastructure upgrades and AI investments.

Published on Jun. 18, 2025
A soldier works on a tablet.
Photo: Shutterstock
REVIEWED BY
Ashley Bowden | Jun 18, 2025

Onebrief, a defense technology company based in Honolulu, has announced a $20 million Series C extension led by Battery Ventures, nearly doubling Onebrief’s valuation to $1.1 billion within three months. The funding builds on the momentum of Onebrief’s rapid adoption within the U.S. defense community, where it works to provide a modern tool for operational planning and military staff collaboration.

Onebrief’s platform integrates military workflows across classified and unclassified networks. It is currently in use by four of the U.S. Department of Defense’s seven geographic combatant commands. The platform encapsulates collaboration features, AI-enhanced tools and customizable workflows to help staff double their productivity and expedite critical decision making. 

The fresh capital will support Onebrief’s scaling efforts, including expanding its infrastructure and accelerating engineering to deepen its support for U.S. allies. The company will also invest in its platform’s AI and integration capabilities as it works to scale user productivity by a hundredfold over the next three years.

This article was drafted by a generative AI tool, using information from press releases and company blogs provided by our staff. All content was reviewed by a Built In editor and went through a fact-checking process to ensure accuracy. Errors can be reported to our team at [email protected].

Explore Job Matches.