Mattermost and Whitespace Partner to Advance Operational AI and Secure Mission Collaboration for Defence
Mattermost and Whitespace are partnering to advance operational AI, secure collaboration, and institutional learning across defence and national security environments.
The partnership brings together Mattermost’s mission-critical collaboration platform and Whitespace’s Collective sovereign AI operating system to help defence organisations connect information, decision-making, operational action, and organisational learning within secure mission environments.
As defence organisations operate across increasingly complex and contested environments, the challenge is no longer simply accessing information. It is enabling people, systems, and organisations to coordinate effectively, act with confidence, and learn from operational experience.
Bringing Secure Collaboration and Sovereign AI Together
Mattermost provides the secure collaboration and workflow layer where mission teams coordinate activity, execute structured processes, automate repeatable workflows, and maintain operational continuity across controlled deployment environments.
Designed for demanding defence, government, and mission-critical environments, Mattermost supports secure collaboration where deployment flexibility, control, resilience, and trust are essential.
Whitespace’s Collective platform brings sovereign AI capabilities into operational workflows by connecting governed data, organisational context, AI reasoning, and institutional learning across cloud, edge, on-premise, and air-gapped environments.
Together, Mattermost and Whitespace are bringing secure collaboration, AI-powered operational workflows, and institutional learning together in support of more unified, mission-ready operational environments.
From Information to Operational Advantage
Operational success increasingly depends on an organisation’s ability to connect information, decisions, actions, and learning in a trusted environment.
The partnership reflects a shared focus on operational deployment rather than experimentation alone. By combining secure collaboration with sovereign AI capabilities, Mattermost and Whitespace are helping defence teams move beyond isolated tools towards connected operational environments that support coordination, mission execution, and continuous improvement.
This approach helps reduce the time between information, understanding, decision, and operational impact while maintaining the security, resilience, and governance required for mission-critical work.
Building Through Ecosystems
The partnership builds on recent collaboration between Mattermost and Whitespace, including demonstrations showcased at Eurosatory 2026, where the two organisations presented an operational AI capability designed to support defence teams operating across connected, disconnected, and coalition environments.
Both organisations were also members of the Oracle Defence Ecosystem launch cohort, where a shared focus on operational deployment and mission-critical technology first brought the teams together.
Today, Mattermost and Whitespace will be participating in the Oracle Defence Tech Summit in Brussels as members of the Oracle Defence Ecosystem, showcasing how secure collaboration and sovereign AI can support defence organisations operating across complex coalition environments.
The partnership reflects a broader industry trend towards ecosystem-driven innovation, where complementary technologies are brought together to solve operational challenges that no single vendor can address alone.
A Force-Multiplying Partnership
“The future of defence technology will be built through ecosystems, not individual platforms. By bringing together Mattermost’s mission-critical collaboration capabilities and Collective, our sovereign AI operating system, we’re exploring how organisations can better connect people, information, workflows, and learning within a trusted operational environment. Our focus is simple: helping defence organisations move beyond isolated tools towards operational AI capabilities that support stronger coordination, faster learning, and more effective operations.” Andrew Webber, Chief Partnerships Officer, Whitespace
“Defence organisations need more than standalone AI tools. They need operational environments where people, information, and technology work together securely and effectively. By combining Mattermost’s secure collaboration and workflow capabilities with Whitespace’s sovereign AI platform, we’re helping create an ecosystem that supports better coordination, faster decision-making, and continuous operational learning.” Jason Blais, VP Product & NATO Alliances, Mattermost
The partnership represents the first step in a broader programme of collaboration focused on operational AI, secure mission workflows, institutional learning, and coalition interoperability.
Together, Mattermost and Whitespace are focused on helping defence organisations turn mission activity into institutional learning, and institutional learning into stronger readiness.
About Whitespace
Whitespace is a UK sovereign AI company delivering operational AI capabilities for defence, government, and regulated industries. Built for the world’s most demanding environments, Whitespace enables organisations to deploy secure, governed, and operationally effective AI across cloud, edge, and air-gapped environments. Learn more at https://white.space/.
