3eTI Headquarters - Rockville, Maryland
3eTI’s corporate headquarters handles the company’s sales and marketing, as well as product engineering, and research and development.

9715 Key West Avenue
Suite 500
Rockville, Maryland  USA   20850
Phone: 301-670-6779
Fax:     301-670-6989

Lincoln, Nebraska, Office
The Lincoln, Nebraska, office is home to the Transcrypt International line of products. This location also staffs engineers for the 3eTI, EFJohnson and Transcrypt businesses.  Many finance, sales / marketing, technical support service, and manufacturing / purchasing staff for both 3eT and Transcrypt reside at this location.

3900 NW 12th Street
Suite 200
Lincoln, NE 68521
Phone:  402-474-4800
Tollfree: 800-228-0226
Fax:      402-479-8482

Dahlgren, Virginia, Office
The primary purpose of the Dahlgren office is to provide on-site system engineering support to Naval District Washington, based in Washington, D.C.

6103 James Madison Parkway
King George, VA   USA   22485
Phone: 540-663-2790
Fax: 540-663-2789