MASHnet is a network with the expressed aim to improve the application of modelling and simulation techniques within health and care. MASHnet was established in 2005, in November 2011 it became a not-for-profit Community Interest Company.

The use of simulation and modelling in the planning and management of health and social care services has provided major benefits. But success has been restricted by lack of co-ordination and constraints in sharing of information between key individuals and organisations despite the growing interest and numbers of researchers involved.