Founded in 1885, P. Flanigan and Sons Inc. specializes in the construction and maintenance of transportation infrastructure. Based in Baltimore, Md., the company has expertise in construction and material supply. It constructs and maintains infrastructure including roadways, airports and railroads. P. Flanigan and Sons Inc. produces a wide range of asphalt and recycled aggregate products, manufacturing a variety of hot mix asphalt, warm mix asphalt, foamed asphalt, and cold patch asphalt. Its list of projects includes Baltimore Washington Parkway, Domino Sugar, Cruise Ship Terminal and McCormick Elementary School.