Two Siemens companies have formed a limited liability company (LLC) to focus on maintaining explosive detection devices and systems installed in 438 commercial airports in the United States.

Atlanta-based Siemens Energy & Automation and Chicago-based Siemens Building Technologies have teamed up to form Siemens Maintenance Services LLC. The company is supported by the $1.37 billion contract awarded last spring by the U.S. Department of Transportation to a Boeing/Siemens partnership to install and maintain explosive detection systems at commercial airports nationwide.