The Spanish Society of Applied Mathematics (SEMA) was created in 1991, as a milestone in the development of applied mathematics in Spain, witnessed by the success and continuity of the national Spanish Congress of Differential Equations and their Applications that began in 1978. Its main purpose was to contribute in a coordinated manner to the development of mathematics in connection with its applications, responding in this way to new challenging problems of the real world, in the most diverse areas in science and industry. This was motivated by the quantitative deep change occurred in the preceding decade in the application of the mathematical techniques and methodology, essentially due to the development of parallel and subsequently high performance computing. Today the activity of SEMA is based upon the consideration that mathematical modeling and analysis, numerical simulation and control techniques are essential tools to understand and solve the many challenging problems in physics, chemistry, engineering, biomedical sciences, geosciences, economy, finance, among others. SEMA holds cooperation agreements with mathematical societies of Spain (RSME Royal Spanish Society of Mathematics-, SCM –Catalan Society of Mathematics-, SEIO –Spanish Society of Statistics and Operational Research-) and neighboring and north-american countries (AMS, GAMM, SIAM, SIMAI and SMAI). Also, it is an active member of international associations of mathematics societies, such as CIMPA, IMU, EMS, ECCOMAS and in particular ICIAM. The first president of SEMA was Antonio Valle (U. Málaga). Since June 2016 the president is Rosa Donat (U. València).