United States: Warfighters Challenge

4 tracked companies from United States selected for the NATO DIANA warfighters challenge. Part of the Warfighters Challenge (10 tracked companies in total) and the United States overview (45 tracked across all cohorts).

Companies tracked

Challenge areas

Phase 2 selectees

40%

Share of cohort

Of 10 tracked

Challenge areas

Decision Superiority for NATO Warfighters

All 4 tracked companies

Watchtower Labs

United States · Warfighters Challenge

AI-first defence startup developing multi-agent systems for logistics decision support, simulation modelling, and operational planning in contested environments; holds US DIU prototype contracts.

Decision Superiority for NATO Warfighters

Grist Mill Exchange

United States · Warfighters Challenge

Operates a commercial data marketplace connecting defence and government customers with 375+ vetted data providers via anonymised, secure procurement channels to accelerate mission-critical data access.

Decision Superiority for NATO Warfighters

Onebrief

United States · Warfighters Challenge

Develops a cloud-based Command Decision Platform integrating agentic AI, real-time data, and collaborative planning tools to modernise military staff processes across all US services and coalition partners.

Decision Superiority for NATO Warfighters

Picogrid

United States · Warfighters Challenge

Provides an open-architecture integration platform (Legion API) that unifies disparate military sensors, drones, and autonomous systems into a single real-time C2 network; selected to support Project Maven across NATO.

Decision Superiority for NATO Warfighters

Source: Warfighters Challenge selection announcement (July 2026). See methodology.