O & G Industries, a diversified construction services company, is one of the largest of its kind in the Northeastern United States. The company provides building construction management, design/build, heavy civil construction, transportation, environmental remediation and construction materials, which include redi-mix concrete, bituminous paving materials, quarried stone aggregates and masonry products. O & G Industries has projects in a variety of industries, such as educational, health care and heavy and civil engineering. The company offers services to the Greenwich Boys & Girls Club, Towers at Merritt on The River, Sterling Power Plant at Yale University, MacDougall Correctional Institution and Bradley International Airport. O & G Industries was founded in 1923 and has headquarters in Torrington, Conn.