Onebrief Reaches $1.1 Billion Valuation with Series C Extension Led by Battery Ventures
Deal News | Jun 16, 2025 | Alchemist Accelerator LLC
Onebrief, a leader in military staff collaboration software, announced a $20 million Series C extension led by Battery Ventures, elevating its valuation to $1.1 billion. This marks nearly a doubling in three months following a previous $650 million valuation. The funding positions Onebrief as one of the few unicorns within the defense technology sector. CEO Grant Demaree emphasized the significance of this funding, highlighting plans to invest in AI and operational resilience. Battery Ventures’ Michael Brown expressed enthusiasm for Onebrief’s strategic role in the U.S. military's modernization, particularly its impact on efficiency and cost-effectiveness. The collaboration platform has become integral across the Department of Defense, with the potential to unlock substantial savings in the Future Years Defense Program. The company intends to enhance its global infrastructure and AI capabilities to further empower military operations.
Sectors
- Defense Technology
- Artificial Intelligence
- Venture Capital
Geography
- United States – Onebrief is a U.S.-based company working closely with the Department of Defense, illustrating its significant role in the U.S. defense sector.
Industry
- Defense Technology – Onebrief is a leading player in the defense technology sector, providing software that supports military collaboration and operational planning.
- Artificial Intelligence – The article mentions Onebrief's ongoing and future investment in AI to enhance decision-making and operational efficiency within military operations.
- Venture Capital – Battery Ventures, a major player in venture capital, leads the Series C extension for Onebrief, indicative of significant investment activity.
Financials
- $20 million – The amount raised in the Series C extension led by Battery Ventures.
- $1.1 billion – The updated valuation of Onebrief following the Series C extension.
- $650 million – The previous valuation of Onebrief before the Series C extension, achieved three months ago.
Participants
| Name | Role | Type | Description |
|---|---|---|---|
| Onebrief | Target | Company | A software company providing solutions for military staff collaboration and operational planning, recently valued at $1.1 billion after its Series C extension. |
| Battery Ventures | Investor | Company | A venture capital firm leading Onebrief's $20 million Series C extension, supporting its growth in defense technology. |
| Alchemist Accelerator LLC | PE Firm | Company | The PE firm backing and accelerating Onebrief. |
| Grant Demaree | CEO | Person | CEO of Onebrief, guiding the company through its expansion and strategic investments in defense tech. |
| Michael Brown | General Partner | Person | A general partner at Battery Ventures, involved in overseeing the investment in Onebrief. |
| U.S. Department of Defense | Client/Partner | Government | Utilizes Onebrief's software to enhance military operations and efficiency. |