Parsons Corporation Information
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|Traded as||NYSE: PSN|
|Industry||Security, Defense, Intelligence, Technology, and Critical Infrastructure|
|Founded||California, United States (1944 as Ralph M. Parsons Company)|
5875 Trinity Pkwy #300, Centreville, Virginia
|Charles L. Harrington,
Carey Smith, COO
George L. Ball, CFO
|Revenue||US$ 3.6 billion (2018) |
Parsons Corporation (Parsons) is an American technology-focused defense, intelligence, security, and infrastructure engineering firm headquartered in Centreville, Virginia, founded in 1944 by engineer Ralph M. Parsons.  
Parsons has more than 16,000 employees across 24 countries.
Parsons was founded by Ralph M. Parsons.  During the Cold War, Parsons provided process engineering, facility design, construction services and operated various jet propulsion facilities— nuclear, chemical, and heavy fuels. It also delivered electronics, instrumentation, and ground checkout systems design and engineering for aircraft, missiles and rockets. 
Notable Parsons projects include:
- Titan and Minuteman ICBM bases, sites and silos (together with another California-based contractor—Daniel, Mann, Johnson & Mendenhall) 
- Pershing MRBM miss-distance indicators 
Parsons was awarded a contract for a $243 million project to build 150 health care centers in Iraq in March 2004. By March 2006, $186 million had been spent, with six centers complete and accepted by the U.S. Army Corps of Engineers (USACE), 135 centers only partly complete, and one reassigned to another contractor. USACE progressively terminated the contract from September 2005 to March 2006, eventually requiring Parsons to complete a total of 20 centers with the others to be completed by other contractors. The estimated cost for the completion of the other 121 centers was $36 million. 
Parsons and USACE disputed the degree to which the final 20 centers were completed.  A report by the Special Inspector General for Iraq Reconstruction cited problems, including "high turnover among government personnel... directions... given without agreement from the contractor... program managers' responsiveness to contractor communications, cost and time reporting, administration and quality assurance". 
Parsons was contracted in 2011 to implement a custom positive train control system for Caltrain, to be completed before the December 2015 federal PTC deadline mandated by the Rail Safety Improvement Act of 2008.  The project, called the Communications Based Overlay Signal System (CBOSS), failed to meet its 2015 delivery date and Caltrain terminated the contract as a result of "non-performance in 2017 after many months of delay and repeated failure by the contractor to correct performance issues."   After the cancellation of the Parsons contract, Caltrain approved a new contract for an off-the-shelf PTC system from Wabtec Corporation.  
- http://www.parsons.com/about-parsons/Pages/financial-highlights.aspx Parsons Financial Highlights
- "FAQ". Parsons. Retrieved Mar 2, 2019.
- Brown, Heidi. "Rebuilding". Forbes. Retrieved 2018-08-17.
- Thumbs up for performance. // Aviation Week & Space Technology, October 14, 1957, v. 67, no. 15, p. 84.
- "Ralph M. Parsons Foundation Awards $1 Million Grant to Caltech for New Research Laboratory | Caltech". The California Institute of Technology. Retrieved 2018-06-26.
- "Markets". Parsons. Retrieved Mar 2, 2019.
- Howard, William E. Billions for ICBM Launching Facilities // Missiles and Rockets, May 11, 1959, v. 5, no. 19, p.13-14.
- Packard Reminds Industry of Its Duty — Defense. // Missiles and Rockets, September 5, 1960, v. 7, no. 10, p. 17.
- Stuart W. Bowen, Jr. (February 15, 2007), STATEMENT OF STUART W. BOWEN, JR. SPECIAL INSPECTOR GENERAL FOR IRAQ RECONSTRUCTION BEFORE THE UNITED STATES HOUSE OVERSIGHT AND GOVERNMENT REFORM COMMITTEE U.S. CONTRACTING IN IRAQ (PDF), House Government Reform Committee, archived from the original (PDF) on August 29, 2008
- "Report details problems with contract for Iraq health centers". Government Executive. Retrieved Mar 2, 2019.
- Kyra Senese, Caltain to sign Wabtec PTC contract, Railway Age
- Caltrain PTC Program Status & Wabtec Contract Award, Caltrain
- Caltrain Receives $18.7 Million Grant for Positive Train Control Project, Caltrain