The term 'intelligence community' refers to the following agencies or organizations: (1) The Central Intelligence Agency (CIA); (2) The National Security Agency (NSA); (3) The Defense Intelligence Agency (DIA); (4) The offices within the Department of Defense for the collection of specialized national foreign intelligence through reconnaissance programs; (5) The Bureau of Intelligence and Research of the Department of State; (6) The int elligence elements of the Army, Navy, Air Force, and Marine Corps, the Federal Bureau of Investigation (FBI), the Department of the Treasury, and the Department of Energy; and (7) The staff elements of the Director of Central Intelligence.
Sources:
NIST SP 800-59 under Intelligence Community from E.O. 12333

  The term 'intelligence community' refers to the following agencies or organizations: (i) The Central Intelligence Agency (CIA); (ii)The National Security Agency (NSA); (iii) The Defense Intelligence Agency (DIA); (iv) The offices within the Department of Defense for the collection of specialized national foreign intelligence through reconnaissance programs; (v) The Bureau of Intelligence and Research of the Department of State; (vi) The intelligence elements of the Army, Navy, Air Force, and Marine Corps, the Federal Bureau of Investigation (FBI), the Department of the Treasury, and the Department of Energy; and (vii) The staff elements of the Director of Central Intelligence.
Sources:
NIST SP 800-60 Vol. 1 Rev. 1 under Intelligence Community
NIST SP 800-60 Vol. 2 Rev. 1 under Intelligence Community