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Contact IDA

Contact IDA and SAC

IDA Corporate Offices and Systems and Analyses Center (SAC)

Institute for Defense Analyses (IDA)
4850 Mark Center Drive
Alexandria, Virginia 22311-1882

IDA Systems and Analyses Center (SAC)
4850 Mark Center Drive
Alexandria, Virginia 22311-1882

How to sponsor research at SAC.

Subcontractor Opportunities

IDA issues subcontracts for selected technical services as well as for the procurement of many goods and services. We competitively award subcontracts when possible and would like to include your business in our database. We have an aggressive Small Business Program and seek any and all qualified small businesses to fulfill our subcontracting requirements and meet our client's needs.

Send us information about your company by completing our online registration form, or feel free to contact Pamela Harris (703-845-2221) in our Finance Department.

Media Inquiries

Herman Phillips
Communications Director

Employment Verification

HR Services Center


IDA/SAC Visitor COVID-19 Pre-Visit Screening Questionnaire(Open external link)




Visitors and Security Clearance

Visit letters passing clearance information should be faxed to 703-845-2588 (nonsecure fax).

If you are sending a visit letter electronically, the IDA SMO Code is 7A2934. To verify receipt of a visit letter, call 703-845-2000 or 703-845-6900.