OpenSim is supported by the NIH through the Mobilize Center (P41 EB027060) and the Restore Center (P2C HD101913), and by the Wu Tsai Human Performance Alliance.

OpenSim previously has received support from the NIH though the National Center for Simulation in Rehabilitation Research (NCSRR) (P2C HD065690) and Simbios, the NIH National Center for Physics-Based Simulation of Biological Structures at Stanford (U54 GM072970), and by DARPA through the Warrior Web Program. 

See the Authors page for a list of the many people who have contributed to the OpenSim project over the years.

OpenSim relies on a wide variety of third-party software (licenses are in parentheses):

The source code for LGPL components can be obtained from the links above.

The following software tools are used when building (compiling) OpenSim: