INTEROPen is a collaboration of individuals, industries, standards organisations and health and care providers, who have agreed to work together to accelerate the development of open standards for interoperability in the health and social care sector. INTEROPen will act as an umbrella group, made up of key interoperability networks, all of whom will collaborate on the design and application of technical interoperability standards. Other networks under the umbrella include NHS England, NHS Digital, CCIO Network, TechUK and OpenEHR, amongst others. Every member has a different area of expertise and all will contribute to the overall goal of ensuring interoperability across all systems in health and social care.