Chicago-based Environmental Systems Design , Inc. will provide mechanical , plumbing , electrical and fire protection engineering , as well as teledata , audio/visual , security systems , and acoustics . Langan International will be responsible for geotechnical engineering as well as some ground level site work such as transportation engineering and parking , including the design of the proposed 3,000 – 4,700 car underground parking garage that will be located near , but not under the tower for terrorism reasons . Langan also designed the tower 's foundation , which has to be able to support the tower despite the less than optimal subsurface conditions , such as soft rock and permeable coral , which could cause the piles to settle . Thornton Tomasetti has provided the structural engineering for two of the previous world 's tallest building title holders , the Petronas Towers in Kuala Lumpur , and the Taipei 101 in Taiwan , as well as the under construction Ping An Finance Centre in Shenzhen , which will be the second tallest building in China after completion . Saudi Binladin Group is the largest construction firm in the Middle East , with over 35,000 workers and hundreds of projects . They recently constructed the topped-out Abraj Al-Bait Clock Tower in Mecca , which is the tallest building in Saudi Arabia and third tallest in the world , as well as the largest skyscraper in the world by floor area and volume . Aside from buildings , the firm has also constructed many major infrastructure projects , such as the King Abdulaziz ( Jeddah ) International Airport expansion and the six lane Al Qassim Expressway through Saudi Arabia . Saudi Binladin Group is owned by the family of the late al-Qaeda leader Osama bin Laden . As a result , it has sparked some minor media buzz . When asked his thoughts about this in an interview , Adrian Smith simply stated that they are the largest construction firm in the Middle East , most significant work in Saudi Arabia was done by them , and that it is a very large family that should n't be stereotyped by one of its members . Furthermore , in January 2012 , New York City judge George B. Daniels ruled that no charges could be filed against SBG to repay the victims of 9/11 as there is no evidence of the construction firm financially supporting bin Laden after he was removed as a shareholder following the 1993 World Trade Centre bombing
1993 World Trade Centre bombing
1993 World Trade Center bombing
Jeddah Tower