Their headquarter is located in Santa Clara, California state of America. The company is known for their gamer-orientated GeForce GPUs/graphics cards, their workstation-orientated Quadro GPUs/graphics cards, their GPGPU-orientated Tesla GPUs and recently, their Tegra mobile SoCs.
In addition, Nvidia also introduced the Nvidia Shield mobile gaming brand by releasing the Nvidia Shield Portable gaming handheld.
See Also
GeForce - Nvidia's gaming-orientated GPU products
Quadro - Nvidia's workstation-orientated GPU products
Tesla - Nvidia's General-proposal GPU products
Tegra - Nvidia's mobile SoCs for smartphones and tablets
Nvidia Shield - Nvidia's mobile gaming brand for handhelds and tablets, powered by Nvidia Tegra SoC