The Foreign and Commonwealth Office (FCO) does not break down expenditure on consultants into specific categories to this level.
Annual expenditure on consultants is published in the FCO's annual departmental reports, copies of which are available on the FCO website and can be directly accessed through the following link:
http://www.fco.gov.uk/servlet/Front?pagename=OpenMarket/Xcelerate/ShowPage&c=Page&cid=1007029395438.