The Modelica Association is a non-profit organization that develops and promotes the Modelica language, a standardized, open-source language designed for modeling complex systems involving mechanical, electrical, electronic, hydraulic, thermal, control, electric power, or process-oriented subcomponents. Founded in 2000, the association focuses on the continuous enhancement of the language, related standards, and supporting libraries to facilitate model-based design and analysis. Modelica is widely used across industries and academia for simulation and optimization of dynamic systems. The association also organizes events such as conferences and workshops to foster collaboration and knowledge sharing within the community.