The Centers for Disease Control and Prevention (CDC) awarded Sterling-based contractor AlphaSix Corp. an $87 million contract to help the National Institute for Occupational Safety and Health (NIOSH) build a knowledge base, the company announced Tuesday.
McLean-based Attain LLC and Arlington-based CACI International Inc. will serve as subcontractors on the award. The companies will work to develop a knowledge base for worker safety goals. Further details of specific services were not disclosed.

