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Major Clients	12 Months Ended
	Sep. 30, 2018
Major Clients
Major Clients	20.         Major Clients Other than the U.S. federal government, no single client accounted for 10% or more of the Company’s revenue in any of the past five fiscal years. Approximately 23%,  22%, and 23% of the Company’s revenue was derived through direct contracts with agencies of the U.S. federal government in the years ended September 30, 2018, 2017 and 2016, respectively. One of these contracts accounted for approximately 2%,  3%, and 3% of the Company’s revenue in the years ended September 30, 2018, 2017 and 2016, respectively.

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The entire disclosure for concentration risk on revenues from major clients. Major clients are those which that the loss of such client would have a material adverse effect on the entity.

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