title: Syska Hennessy
text: # Syska Hennessy
  
  Syska Hennessy is a global consulting, engineering and commissioning firm for the built environment. Established in 1928, Syska Hennessy was ranked the 161st-largest U.S. design firm by Engineering-News Record in 2022. The firm has over 500 employees with 20 offices worldwide, including 18 U.S. locations as well as Shanghai, China, and Dubai, UAE. Consulting-Specifying Engineer magazine placed Syska Hennessy 19th overall in its 2022 MEP Giants list, with gross revenue over $110 million. More than 90% of its revenue is derived from mechanical, electrical, and plumbing engineering services, according to the CSE ranking report, Building Design + Construction magazine ranked Syska Hennessy15th in its 2022 list of top building engineering firms.
  
  ## History
  
  Syska Hennessy was founded in 1928, by two mechanical engineers, Adolph G. Syska and John F. Hennessy. Originally established in New York City as Syska & Hennessy Engineers, the firm was among the earliest to specialize in the mechanical and electrical systems at the heart of high-rise structures.
  
  1930s
  
  * US Post Office Building, Washington, DC
  * Frick Collection, New York
  * LaGuardia Airport, New York
  * 1939 World’s Fair, New York
  
  1940s
  
  * United Nations Headquarters, New York
  * Todd Shipyards, New York, New Jersey, Louisiana, Maine
  
  1950s
  
  * West Point, New York
  * US Air Force Academy, Colorado
  * Columbia University, New York
  * New York University Medical School, New York
  * Massachusetts Institute of Technology, Massachusetts
  
  1960s
  
  * Lincoln Center, New York
  * Rockefeller Center, New York
  * John F. Kennedy Center for the Performing Arts, Washington, DC
  * National Gallery of Art, Washington, DC
  * Madison Square Gardens, New York
  * JFK Airport, New York
  * Bureau of Printing and Engraving, Washington, DC
  * New Jersey College of Medicine
  * Procter & Gamble Headquarters - Cincinnati, Ohio
  * Mount Sinai Hospital - Annemberg Tower, Manhattan, New York
  * New York University, New York
  
  1970s
  
  * National University of Iran, Tehran
  * King Saud University, Saudi Arabia
  * Monterey Bay Aquarium, California
  * IBM, Bordeaux, France
  
  1980s
  
  * Harvard University, Massachusetts
  * Boston Museum of Fine Arts, Massachusetts
  * New York City Convention Center, New York
  * Los Angeles International Airport, California
  * Disney World, Florida
  
  1990s
  
  * Amgen*Bristol-Myers Squibb
  * Bank of America, Nationwide
  * Sony Pictures Studios, California
  * Paramount Pictures, California
  * Reagan National Airport, Washington, DC
  
  ## Notable projects
  
  * Cooper Union Academic Center
  * U.S. Environmental Protection Agency Region 8 Headquarters
  * Maricopa County - New High-Rise Court Tower
  * 2000 Avenue of the Stars
  * Nokia Corporate Headquarters
  * Red Bull Headquarters
  * New York Presbyterian, Milstein Heart Hospital
  * Dulles International Airport Automated People Movers; East Z-Gates Concourse
  * Chennai International Airport
  * Haeundae Udong Hyundai I'Park Development
  * King Saud University
  * Dubai International Airport
  * California Academy of Sciences
  * Indianapolis International Airport, Midfield Terminal
  * KAPSARC
  * Busan Lotte World Tower
  * Lotte Jamsil
  