From the company website:
Grinding Gear Games was founded in November 2006 in Auckland, New Zealand. Its founding members come from various countries and have a selection of diverse backgrounds ranging from artificial intelligence and software security to industrial design to professional tournament game play.
We are currently developing Path of Exile, a competitive online action RPG. Much more information about this project is available at www.pathofexile.com
As veterans of various online role playing games, we understand what is required to make an addictive action RPG with visceral combat and a complex item economy.