The Contracting Five (C5) is a voluntary collaboration between
innovators in governments who are working to foster openness,
innovation, integrity and better business and civic engagement
in government contracting and procurement.

The Open Contracting Data Standard is a global, non-proprietary data standard structured to reflect the complete contracting cycle. The standard enables users and partners around the world to publish shareable, re-usable, machine-readable data; to join that data with their own information; and to create tools to analyze or share that data.