Global engineering services leader DeSimone Consulting Engineering announced a new round of promotions, including the appointment of structural engineer, Mark B. Plechaty, P.E., as a managing principal.
“Mark Plechaty’s talent in developing innovative structural engineering design solutions and managing some of the firm’s largest and most complex projects has been critical to the success of countless iconic buildings from NYC to the UAE,” said Stephen DeSimone, chairman and CEO of DeSimone Consulting Engineering. “His astute, affable and highly effective leadership style has inspired those around him and earned him the respect of every client and project team he’s worked with.”
Plechaty has played a major role in the company’s growth since joining the structural engineering practice in 1995, having devoted much of his professional career to DeSimone. He was named a firm Principal in 2019 in recognition of his project achievements, and contributions to management and the company’s ongoing growth trajectory.
Most recently, Plechaty led the award-winning office-to-residential conversion of the landmarked One Wall St. tower in Manhattan. He currently leads the structural design team for the reimagining and revitalization of the historic One Times Square into a premier tourist destination, as well as the transformation of the historic, block-long Terminal Warehouse into a mixed-use office complex, both in Manhattan.
A registered professional engineer, Plechaty has overseen the design and project management of numerous other tall towers in New York City, including the award-winning skyscrapers at 125 Greenwich Street and 111 Murray in Lower Manhattan, and the Skyline Tower in Long Island City.
While based in DeSimone’s Abu Dhabi office, Plechaty directed overseas operations in the United Arab Emirates for four years. His work there included such projects as the 48-story Emirates Pearl Hotel, the Al Maryah Office Tower, the Special Security Hospital and the Zayed Military Hospital.








