# Onebrief

> Onebrief is a defense-tech company building the operating system for military command. Its collaborative, AI-enabled platform replaces the email-and-PowerPoint grind that runs war planning with a single live system where staffs draft plans, wargame options, and update orders in real time across classified networks. Founded by a West Point graduate who watched slow decisions cost lives during the Ebola crisis, Onebrief now sits inside major operational plans across the U.S. military and hit a $2.15 billion valuation in early 2026.

- **Founded:** 2019
- **Headquarters:** Honolulu, Hawaii, United States
- **Founders:** Grant Demaree (CEO and Co-founder), Rafa Pereira (Co-founder)
- **Team size:** ~390 employees
- **Products:** Onebrief Platform, AI Assist / AI Co-planner, Continuous Wargaming & Simulation, Maps & GIS / Unified Data Hub
- **Notable:** Reached a $2.15 billion valuation with its $200M Series D in January 2026, Became a defense-tech unicorn in 2025 (~$1.1B valuation), Integral to three of the four largest operational plans (OPLANs) globally

## Products & services

- **Onebrief Platform** — Collaborative, AI-enabled operational planning software for military staffs. Unifies operational data, doctrinal templates, real-time collaborative editing, version control, and briefing generation in one system deployed across classified networks (NIPR, SIPR, JWICS, CENTRIX), up to top secret, with offline capability.
- **AI Assist / AI Co-planner** — Agentic AI, built on Anthropic's Claude and trained on open-source U.S. military doctrine, historical orders, and staff outputs, that generates and updates plans, orders, and briefs while staying aligned with commander's intent.
- **Continuous Wargaming & Simulation** — Wargaming and real-time operational decision support powered by gaming technology, expanded through the 2026 acquisition of Battle Road Digital to bridge simulation and live operations.
- **Maps & GIS / Unified Data Hub** — Structured data management for military plans with maps and GIS support, an open API for DoD data formats, data import/export, and FIPS 140-3 encryption.

## Achievements

- Reached a $2.15 billion valuation with its $200M Series D in January 2026
- Became a defense-tech unicorn in 2025 (~$1.1B valuation)
- Integral to three of the four largest operational plans (OPLANs) globally
- Used organically across four of the seven geographic combatant commands
- Reported staffs operate roughly twice as fast and twice as efficiently using the platform
- Reported 5,700% annualized operational usage growth
- Raised roughly $392M in total funding across its rounds
- Acquired Battle Road Digital to add continuous wargaming and simulation

## Latest updates

- **2026-01** — Closed a $200M Series D at a $2.15B valuation, led by Battery Ventures and Sapphire Ventures, and acquired Battle Road Digital to add wargaming and simulation.
- **2025** — Crossed a ~$1.1B valuation to become a defense-tech unicorn, with expanded AI Co-planner and offline capabilities.
- **2025-04** — Raised a $23.6M Series C extension led by Battery Ventures.
- **2024-12** — Announced Series C, bringing total capital raised to $103M.

## Links

- Website: https://onebrief.com
- LinkedIn: https://www.linkedin.com/company/onebrief
- Twitter/X: https://twitter.com/Onebriefapp
- YouTube: https://www.youtube.com/watch?v=zuvk3TFnH1Y
- Facebook: https://facebook.com/onebrief

---

Profile page: https://yespress.io/onebrief
Published by YesPress — https://yespress.io
Last updated: 2026-08-19