In January 2008 Human Rights First published the report "Private Security Contractors at War: Ending the Culture of Impunity”: Full report [PDF] / Press release.  Business & Human Rights Resource Centre invited seven private security companies to respond:

Aegis response [DOC]    [Additional Aegis statements regarding "Trophy video" incident: [DOC] 27 Feb 2008 - and earlier statement from Aegis website]

Blackwater response [DOC]

Crescent Security response [DOC]

Custer Battles: Several attempts were made to contact this company but they were unsuccessful

KBR:

• statements regarding Human Rights First report [DOC]
• statements regarding Jamie Leigh Jones litigation [DOC]
• position statement to US Equal Employment Opportunity Commission regarding Jones case [DOC]
   

Triple Canopy response [PDF]

Zapata Engineering has not responded