Public Storage is an American international self storage company headquartered in Glendale, California that is run as a real estate investment trust (REIT). It is the largest brand of self-storage services in the US. In 2008, it was the largest of four publicly traded storage REITs. There are more than 2,200 Public Storage self-storage locations in the US, Canada and Europe. It also owns 42 percent of an office parks subsidiary, sells packing supplies, and provides other services.