We are excited to announce that PROOF IV invested in Onebrief via a secondary purchase!
Onebrief modernizes how military organizations plan and execute operations; replacing fragmented, legacy tooling with a collaborative, integrated system purpose-built for defense. We've been tracking Onebrief's growth closely, and voted to invest in their most recent round.
The defense technology landscape is undergoing a structural shift: cloud platforms are being provisioned inside military networks for the first time, creating infrastructure that enterprise SaaS companies can finally build on and sell into at scale. For decades, military planning relied on disconnected internal systems that couldn't keep pace with modern operational demands. Between legacy government IT and large defense contractors sits a critical gap; commands and combatant forces who need modern, collaborative, AI-driven planning tools that traditional defense programs cannot deliver with speed or usability.
Onebrief addresses this gap with an AI-native platform that brings real-time collaboration, structured planning workflows, and institutional knowledge management into a single system. Its go-to-market strategy takes direct advantage of the military's chain of command: once one command adopts the platform, adjacent units follow organically.
What we like about Onebrief:
