Brennan Investment Group is a Chicago-based private industrial real estate investment firm founded in 2010 by Michael Brennan and his nephew Kevin Brennan. Michael Brennan previously served as co-founder and CEO of First Industrial Realty Trust from 1994 to 2008. The firm has grown to become the second-largest privately held industrial real estate owner in the United States. Brennan owns and operates a portfolio of approximately 57 million square feet across 29 states, representing more than $6.5 billion in assets under management. The company maintains 18 regional offices across the country and has been involved in over $20 billion in industrial real estate transactions since its inception. The firm's investment strategy centers on acquiring, developing, and operating industrial properties through multiple channels, including shallow-bay facilities, corporate real estate acquisitions, build-to-suit developments, and sale-leaseback transactions. The company targets functional industrial assets in land-constrained, high-growth markets. Brennan operates with an average hold period of approximately three years, achieving an average internal rate of return of 39 percent and a 2.16 equity multiple across properties sold. The firm has pivoted away from speculative ground-up development due to elevated construction costs, instead focusing on value-add acquisitions and manufacturing sector opportunities. Geographic focus includes major Midwest markets such as Chicagoland and Milwaukee, along with expansion in Sun Belt markets including Houston and Nashville. Recent acquisitions demonstrate concentration in shallow-bay industrial product with diverse tenant bases and weighted average lease terms exceeding four years. The firm co-invests with private and institutional capital partners, including recent partnerships with PCCP and Farallon Capital on large-scale portfolio transactions. Brennan's management team has collectively invested in over 5,000 properties across more than 60 cities throughout the United States, Canada, and Europe.