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• ManTech Defense Systems Group
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•  » ManTech Systems Engineering     Corp
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The ManTech Defense Systems Group (DSG) consists of more than 2,300 professionals, the majority of which hold TS/SCI clearances. DSG, headquartered in Chantilly, Virginia, has a 40,000 square foot facility which includes a full service warehouse, a TS facility, and a 1,400 square foot SCIF. In addition to our Chantilly location, DSG also has more than 100 CONUS and OCONUS locations.

The DSG member subsidiaries include:

• ManTech Telecommunications and Information Systems Corporation (MTISC)



• ManTech Systems Engineering Corporation (MSEC)

 

CAPABILITIES & SOLUTIONS

ManTech is a leading provider of mission critical, advanced technology solutions and technical services that include:

 

CUSTOMERS

We have worked with many of our customers for more than 25 years. Some of them include: