As of December 31, 2022, it owned 611 self storage properties in 24 states and the District of Columbia containing 44.1 million rentable square feet.

[1] It is the 3rd largest self storage company in the United States.

The company was founded in July 2004 as U-Store-It Trust.

[2] In December 2008, the company moved its headquarters to Malvern, Pennsylvania.

[4] In December 2021, the company acquired Storage West for $1.7 billion.