STAG Industrial, Inc. is a real estate investment trust (REIT). The Company is focused on the acquisition, ownership, and operation of single-tenant, industrial properties throughout the United States. The Company is structured as an umbrella partnership REIT (UPREIT), and owns all its assets and conducts its business through its operating partnership, STAG Industrial Operating Partnership, L.P. The Company's portfolio includes 501 buildings in 39 states with approximately 100.1 million rentable square feet, consisting of approximately 421 warehouse/distribution buildings, 73 light manufacturing buildings, and seven flex/office buildings. It also owns both single- and multi-tenant properties.