The OpenMP ARB is a group of major computer hardware and software vendors that defines the OpenMP API, a portable and scalable model for developing parallel applications. It supports multi-platform parallel programming in C/C++ and Fortran, allowing programmers to easily develop applications for various systems. The ARB oversees the OpenMP specification and approves new versions, with permanent and auxiliary members contributing to the standard. Permanent members are vendors creating OpenMP products, while auxiliary members are organizations interested in the standard. For membership and business inquiries, contact [email protected], and for OpenMP API questions, use the User Forums.