Laurence H. Rooney founds Manhattan Construction Company in Oklahoma Territory through a New York Charter.
On December 17, 1907 Manhattan Construction Company becomes the first company incorporated in the State of Oklahoma.
Manhattan constructs the Love County Courthouse, kicking off a three-decade-long period of construction 30 county courthouse projects across Oklahoma.
Manhattan completes work on the relocated capitol in Oklahoma City, Oklahoma. In 2004, Manhattan returned to add the dome to the structure.
Manhattan builds its first Texas project, the Denison Hotel in Denison, Texas.
Manhattan completed its first aviation project, a balloon hangar at Henry Post Army Airfield at Fort Sill, Oklahoma. The hangar housed dirigibles.
Manhattan opens its Houston office to better serve the company’s Texas-area clients.
Manhattan completed more than $1 billion of World War II mobilization projects for the U.S. Defense Department and was presented the Navy-Army “E” award for outstanding performance.
Manhattan solidifies its presence in Texas by opening its Dallas office.
Manhattan expands east and opens the Mid-Atlantic office service the Washington, D.C., Virginia and Maryland areas.
Manhattan expands operation to Oklahoma City to better serve the company’s growing client base in central and western Oklahoma.
Manhattan is bestowed the national “Excellence in Construction” award by the Associated Builders and Contractors (ABC) for the construction of the Fiesta Texas theme park in San Antonio, Texas.
Manhattan is honored with the national “Excellence in Construction” award by ABC for the construction of Texas Rangers Ballpark in Arlington, Texas.
Manhattan is honored with the “Excellence in Construction” award by ABC for the third time for construction of the Bush Presidential Library at Texas A&M University in College Station, Texas.
Atlanta-based Flagler Construction was acquired and changes its name to Manhattan Construction Company.
Manhattan affiliate, Cantera Concrete Company was formed.
Manhattan expands operations to the Tampa, Florida area to take advantage of the growing Florida market.
Manhattan is nationally recognized by the Associated General Contractors of America (AGC) as the company with the “Best Overall Safety Program” in the nation in the Building Division with more than one-million man hours.
Manhattan’s bridge-building affiliate, M.J. Lee Construction, acquires Muskogee Bridge and changes its name to Manhattan Road & Bridge Company.
Manhattan Construction Group expands its presence in Florida and acquires Spectrum Contracting, SAFEZONE, and general builder Kraft Construction Company, now called Manhattan Construction.
Manhattan is the 2017 Pinnacle Recipient, the highest national safety award that Associated Builders and Contractors awards.