Syska Hennessy

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Syska Hennessy Group
Industry Consulting, Engineering, Commissioning
Headquarters 1515 Broadway
New York City
Number of locations New York, Los Angeles, Atlanta, Dubai,(UAE) Cambridge, Charlotte, Chicago, Dallas, Jacksonville, Princeton, Richmond, San Diego, San Francisco, Washington D.C., Wisconsin, Shanghai,(PRC)
Services Architectural Lighting Design, Audio-Visual, Building Science & Technologies, Commissioning, Energy Services, Engineering the Architecture, Facilities Management, IT/Telecommunications, Medical Communications, Security, Vertical Transportation
Employees 400+
Parent SH Group
Divisions Syska Hennessy Group, Syska Hennessy Group China, Syska Hennessy Group, MENA (Middle East North Africa)

Syska Hennessy is a global consulting, engineering and commissioning firm for the built environment. Established in 1928, Syska Hennessy is considered one of the largest U.S.-based engineering design firms[1] with over 400 employees located in 16 offices world wide. According to Consulting-Specifying Engineer magazine's 2010 MEP Giants list[2] and Building Design+Construction magazine's 2010 Giants 300 report,[3] Syska Hennessy ranks among the top mechanical, electrical, plumbing, and engineering firms in the United States.

Lotte Jamsil - Jamsil, South Korea


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 complicated mechanical and electrical systems at the heart of iconic, high-rise 20th-century structures.








High performance building solutions[edit]

Energy modeling
3D modeling

Syska Hennessy provides integrated, high performance engineering solutions that support near or net zero and carbon neutral environmental performance of buildings as well as third party verified environmental ratings (U.S. Green Buildings Council LEED ratings, BREEAM, Estidama, 3-Star etc.). Syska Hennessy is an early adopter of the Architecture 2030 Challenge[4] which aims to help reduce green house gas emission to achieve carbon neutral/net zero performance in new buildings by 2030. The firm also ranked #19 in Engineering News Record's 2011 Top 100 Green Design Firms.

Notable projects[edit]

Cooper Union's 41 Cooper Square
California Academy of Sciences
Busan Lotte, South Korea


  • 2011 Engineering Excellence ACEC Award - National and Regional (New York, Cooper Union Academic Center)
  • 2011 Combined Cycle Journal Award - (County of Orange Cogeneration Plant)
  • 2010 Calibre Design Award for Small Work Space - IIDA of Southern California (Annenberg Space for Photography)
  • 2010 Award of Merit, California Construction Best of 2010 (Eisenhower Medical Center-The Walter and Leonore Annenberg Pavilion, Rancho Mirage)
  • 2010 Award of Merit, California Construction Best of 2010 (Tom Bradley International Terminal Interior Improvements at LAX, Los Angeles)
  • 2010 Higher Education/Research Winner, California Construction Best of 2010 - (University of California, San Diego Housing & Dining Services Administration Building, La Jolla)
  • 2010 Award of Merit, California Construction Best of 2010 (UCLA Terasaki Life Sciences Building, Los Angeles)
  • 2010 Renovation/Restoration Winner, California Construction Best of 2010 - (University of California, Riverside Physics and Geology Building Renovations Phase II)
  • 2010 Outstanding Achievement in Design and Construction - NASA Honor Award (Jet Propulsion Laboratory, New Office Building and Central Plant, LEED NC Gold)
  • 2010 Engineering Excellence Platinum Award: Building/Technology Systems - ACEC New York (Indianapolis International Airport - Midfield Terminal)
  • 2010 AIA New York Chapter Architecture Design Award (Cooper Union Academic Center)
  • 2010 Masterworks Award for Best New Building in New York City (Cooper Union Academic Center)
  • 2010 American Council of Engineering Companies - Honor Award Winner in the Design Category,
  • 2010 National Finalist for Building/Technology Systems (Dulles International Airport: Automated People Movers)


  1. ^ "TOP 500 Design Firms". ENR. 
  2. ^ "MEP Giants 2010". Consulting Specifying Engineer. 
  3. ^ "Top 100 reconstruction design firms". Building Design + Construction. 
  4. ^ "Architecture 2030 Challenge".