What is the name of the American multinational corporation headquartered in Santa Clara that partnered with SGI and IBM to form OpenGL++?
OpenGL++:  The project started as the result of a partnership between SGI, IBM and Intel (and later Digital Equipment Corporation as well) to provide a higher level API than the "bare metal" support of OpenGL, as well as being an implementation for Java3D. Intel: Intel Corporation (also known as Intel, stylized as intel) is an American multinational corporation and technology company headquartered in Santa Clara, California (colloquially referred to as "Silicon Valley") that was founded by Gordon Moore (of Moore's law fame) and Robert Noyce.
Intel