Karl Koch Steel Consulting is a steel

Steel

Steel is an alloy that consists mostly of iron and has a carbon content between 0.2% and 2.1% by weight, depending on the grade. Carbon is the most common alloying material for iron, but various other alloying elements are used, such as manganese, chromium, vanadium, and tungsten...

 construction firm, based in Oyster Bay, New York. The company was established in the 1950s as Karl Koch Erecting Company, Inc., of Carteret, New Jersey

Carteret, New Jersey

Carteret is a borough in Middlesex County, New Jersey, United States. As of the 2010 United States Census, the borough population was 22,844.Carteret was created as the borough of Roosevelt on 11 April 1906, incorporating Woodbridge Township, and was a result of a referendum on 22 May 1906...

. The Karl Koch Erecting Company was hired by the Port Authority of New York and New Jersey

Port Authority of New York and New Jersey

The Port Authority of New York and New Jersey is a bi-state port district, established in 1921 through an interstate compact, that runs most of the regional transportation infrastructure, including the bridges, tunnels, airports, and seaports, within the Port of New York and New Jersey...

 as one of the companies to supply steel for construction of the World Trade Center

World Trade Center

The original World Trade Center was a complex with seven buildings featuring landmark twin towers in Lower Manhattan, New York City, United States. The complex opened on April 4, 1973, and was destroyed in 2001 during the September 11 attacks. The site is currently being rebuilt with five new...

. The company was also hired to do all the work of erecting the steel at the construction site.

External links

• Karl Koch Steel Consulting (official site)