Guy Nordenson and Associates is a structural engineering practice concentrating on collaborative design with architects. Recent projects include MIT Simmons Hall residence and Nelson-Atkins Museum in Kansas City with Steven Holl Architects; The Museum of Modern Art with Taniguchi and Associates; the Glass Pavilion at the Toledo Museum of Art in Ohio and New Museum of Contemporary Art in New York with SANAA; and the Bridges community center in Memphis with BuildingStudio. Guy Nordenson and Associates designed and engineered the 2,000 foot tall World Trade Center Tower 1 that was adapted in December 2003 to become the Freedom Tower.

The practice was established in 1997 by Guy Nordenson, who began his career as a structural engineer drafting for R. Buckminster Fuller and Isamu Noguchi in Long Island City, New York. He worked in San Francisco and New York, and in 1987 established the New York office of Ove Arup & Partners, where he was a director for ten years before forming his own office in 1997. Nordenson has collaborated on structures ranging from power stations in China to a glass cantilever stair in New York, the first of its kind.