In January 2008 Human Rights First published the report "Private Security Contractors at War: Ending the Culture of Impunity”...Business & Human Rights Resource Centre invited seven private security companies to respond...[As of 2 Feb 2008]: - Aegis response - Blackwater response - Crescent Security response - Custer Battles: Several attempts were made to contact this company but they were unsuccessful - KBR [responses]... - Triple Canopy response - Zapata Engineering has not responded