General Contact Info

The Mark Center building in Alexandria Viriginia


Address: 4800 Mark Center Drive Alexandria, VA 22350-1600


DTSA supports broader U.S. Government efforts to engage regional and international audiences on the nature of U.S. defense trade. If you would like to schedule a meeting with DTSA or request a DTSA speaker at your event, complete an outreach request form, then attach your request to an email addressed to DTSA's Outreach Team.

Press and Media Inquiries

Office of the Assistant Secretary of Defense for Public Affairs
Phone: 703-697-5131

Social Media

DTSA does not provide official responses through social media. Please contact DTSA directly when you require an official response.

DTSA occasionally engages in unofficial conversations relevant to defense technology and export controls through social media. DTSA tweets, retweets, links, likes and follows are not endorsements.

DTSA's Twitter Account:
Recommended Hashtags:
#DefenseTech, #ExportControl, #ExportReform
DTSA Outreach Channel

Career Opportunities

Visit to search for DTSA's career opportunities.

Web Master

Please contact the Web Master for any technical or cyber related issues.

Web Master

DTSA Contacts

Executive Office
Phone: 571-372-2301
International Security Directorate
Phone: 571-372-2564
Licensing Directorate
Phone: 571-372-2356
Management Directorate
Phone: 571-372-7623
Policy Directorate
Phone: 571-372-2438
Technology Directorate
For licensing-related matters
Phone: 571-372-2356
For specific technical questions
Phone: 571-372-2522
Technology Security Foreign Disclosure
Phone: 571-372-2472