Over the last decade, much of the company's growth has come from selling expertise, technology and manpower to the National Security Agency and other federal intelligence agencies.
Booz Allen earned USD 1.3 billion, 23 per cent of the company's total revenue, from intelligence work during its most recent fiscal year, the New York Times said.
"Thousands of people formerly employed by the government, and still approved to deal with classified information, now do essentially the same work for private companies.
"Mr. Snowden, who revealed on Sunday that he provided the recent leak of national security documents, is among them,' the NYT said.
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Interestingly, the daily said Obama administration's chief intelligence official James R Clapper is a former Booz executive. The official who held that post in the Bush administration John M McConnell now works for Booz.
The company, based in Virginia, is primarily a technology contractor. It reported revenues of USD 5.76 billion for the fiscal year ended in March and was No. 436 on Fortune's list of the 500 largest public companies. The government provided 98 per cent of that revenue, the company said.