1980: CSC began operations as R.J. Thompson, Inc.
1983: Company began operating under the name of Command Security
1986: All operations were consolidated under the New York Corporation
1995: Command Security acquired the assets of United Security Group including Aviation Safeguards
2007: Acquisition of California-based Brown Security Services
2013: Command Security Corporate HQ relocated to Washington, D.C. metropolitan area
2019: Prosegur acquired Command Security Corporation, Cipher, BSI, and Viewpoint Monitoring
2020: Command Security operates fully under Prosegur and will rebrand to Prosegur Services Group (PSG)