Private or publicly listed firms received at least $138 billion of U.S. taxpayer money for government contracts for services that included providing private security, building infrastructure and feeding the troops.
 
Ten contractors received 52 percent of the funds, according to an analysis by the Financial Times that was published Tuesday.
 
The No. 1 recipient?
 
Houston-based energy-focused engineering and construction firm KBR, Inc. (NYSE:KBR), which was spun off from its parent, oilfield services provider Halliburton Co. (NYSE:HAL), in 2007.
 
The company was given $39.5 billion in Iraq-related contracts over the past decade, with many of the deals given without any bidding from competing firms, such as a $568-million contract renewal in 2010 to provide housing, meals, water and bathroom services to soldiers, a deal that led to a Justice Department lawsuit over alleged kickbacks, as reported by Bloomberg.