Contact Us

SOSi Headquarters

1881 Campus Commons Drive
Suite 500
Reston, VA 20191
(703) 391-9680

Reston, VA

11091 Sunset Hills Road
Suite 400
Reston, VA 20190
(703) 691-2480

Charleston, SC

4975 LaCross Road, Suite 256
North Charleston, SC 29406
(843) 300-3907

Sierra Vista, AZ

66 North Garden Ave.
Suite 250
Sierra Vista, AZ 85635
(520) 226-3355

Rosslyn, VA

1616 N Fort Myer Drive
Suite 700
Arlington, VA 22209
(703) 525-6102

Jobs information: careers@sosi.com