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§ Private Profile · Honolulu, HI, USA
Onebrief makes military headquarters run seamlessly
Onebrief has raised $336.0M across 4 funding rounds.
Key people at Onebrief.
Onebrief was founded in 2019 by Grant Demaree (Founder) and Rafa Pereira (Founder).
Onebrief has raised $336.0M in total across 4 funding rounds.
Virtually everything in the military requires a plan:from everyday operations to war-time missions. With a rigorous process, many stakeholders, and rudimentary software (PowerPoint!!), planning is very slow.
Onebrief is a collaborative software designed to make military planning fast. It turns every input into reusable building blocks and automatically keeps all planning artifacts in sync.
Onebrief has raised $336.0M across 4 funding rounds. Most recently, it raised $200.0M Series D in January 2026.
| Date | Round | Lead Investors | Other Investors | Status |
|---|---|---|---|---|
| Jan 13, 2026 | $200M Series D | Michael Brown, JAI DAS | General Catalyst, Insight Partners, Salesforce Ventures | Announced |
| Jun 1, 2025 | $24M Series C | Battery Ventures | Anorak Ventures, General Catalyst, Nick Sinai | Announced |
| Jan 1, 2025 | $59M Series C | General Catalyst, Nick Sinai | Novum Capital Partners, Seraphim Space, Space Capital, Bart Swanson, Dylan Taylor, Thomas Tull, 9Yards Capital, Caffeinated Capital, Human Capital | Announced |
| Aug 21, 2024 | $53M Series B | Human Capital | 9Yards Capital, Caffeinated Capital | Announced |
Onebrief was founded in 2019 by Grant Demaree (Founder) and Rafa Pereira (Founder).
Onebrief has raised $336.0M in total across 4 funding rounds.
Onebrief's investors include Michael Brown, Jai Das, General Catalyst, Insight Partners, Salesforce Ventures, Battery Ventures, Anorak Ventures, Nick Sinai, Novum Capital Partners, Seraphim Space, Space Capital, Bart Swanson.
Onebrief is a mission-driven software company that builds an AI-powered collaboration and workflow platform specifically designed to make military headquarters and staff planning seamless, fast, and efficient. Its product transforms complex military planning processes—traditionally slow and document-heavy—into dynamic, reusable, real-time collaborative workflows that enable military planners and commanders to make faster, clearer decisions. Onebrief serves military organizations, including the Pentagon and global allied forces, addressing critical challenges in operational planning, logistics, and command coordination. The platform’s rapid adoption and operational usage growth, reported at an annualized rate of approximately 19,600%, reflect strong momentum and scaling within the defense tech ecosystem[1][2][3][4].
Founded in 2019 by Grant Demaree, a West Point graduate and former 101st Airborne Division officer with deployments to Liberia and Iraq, Onebrief emerged from his firsthand experience with inefficient military planning processes that could take hours or days instead of minutes. The founding team includes veterans and technologists from elite military units and leading tech companies, blending deep operational knowledge with cutting-edge software expertise. Early traction came from embedding alongside users at key military commands, including the Pentagon and Indo-Pacific Command, which helped shape a platform tailored to real-world military needs. The company has rapidly evolved, raising over $120 million in funding and achieving unicorn status with a valuation surpassing $1 billion in 2025[3][4][5].
Onebrief rides the rising trend of digital transformation and AI integration in defense technology, a sector gaining momentum due to increased government focus on modernizing military capabilities. The timing aligns with broader initiatives to incorporate Silicon Valley innovation into national security, accelerating adoption of advanced software tools in military operations. Market forces favor solutions that improve speed, accuracy, and collaboration in complex, high-stakes environments. By enabling military staffs to operate as “superhuman” teams with real-time situational awareness, Onebrief influences the defense ecosystem by setting new standards for operational planning software and fostering closer collaboration between tech and military sectors[2][3][8].
Looking ahead, Onebrief is positioned to deepen its impact by expanding operational use across more military branches and allied forces, leveraging AI advancements to further accelerate decision-making and adaptability in conflict scenarios. Trends such as increased reliance on AI, cloud-based secure collaboration, and integrated command systems will shape its evolution. As Onebrief continues scaling, its influence may extend beyond military planning to broader government and security applications, reinforcing its role as a critical enabler of modern defense readiness. The company’s mission-driven culture and rapid growth suggest it will remain at the forefront of defense tech innovation, helping military staffs worldwide run more seamlessly and effectively[1][3][6].
Key people at Onebrief.