Item 2. Properties

As of December 31, 2021, we conducted our operations in 433 locations in 40 states, the District of Columbia and various foreign countries. We occupy approximately 8.9 million square feet of floor space. Of this amount, we own approximately 1.2 million square feet, and the remaining balance is leased. Our major locations are in the Washington, D.C., metropolitan area, where we occupy a combination of leased and owned floor space of approximately 2.2 million square feet. We also have employees working at customer sites throughout the United States and in other countries.

As of December 31, 2021, we owned the following properties:

The nature of our business is such that there is no practicable way to relate occupied space to our reportable segments.