NDIA provides its more than 1,570 corporate and 63,000 individual members and customers with broad outreach and sector coverage through its technical Divisions, local Chapters, and the complementary missions of its Affiliates:

National Training and Simulation Association (NTSA) – Providing the training, simulation, related support systems, and training services industries a focused, formal organization to represent and promote their business interests in the marketplace.

Women In Defense (WID) – Cultivating and supporting the advancement and recognition of women in national security.

Along with NTSA and WID, NDIA is home to 27 Divisions that cover topics ranging all the way from armaments to undersea warfare. Additionally, with 49 total Chapters located throughout the United States, we provide our members with an interconnected forum through which they can network on a local level.

Membership Numbers
Corporate Individual
1,570 63,000

 Division Listing


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