About

Tresys Technology was founded on the premise of solving the most complex security challenges with innovation of advanced security technologies for more practical use.

Since 1999, the company has dedicated itself to an extensive research and development program for Security-Enhanced Linux (SELinux) which has served as a building block for many of its proprietary and open source solutions. The application of these solutions is shifting the way governments and businesses approach security.

See how we Rethink Security for our customers

With a focus on attracting the brightest engineers and scientists interested in addressing existing and emerging threats to IT systems and networks, Tresys affords a depth of expertise that is respected in both the open source and high security communities.

This combination of acclaimed research, development prowess and practical approach to security solutions has earned the company a distinct reputation in the security market. Tresys is proud to serve U.S., U.K. and Australian Departments of Defense along with other government and commercial enterprises. Headquartered in Columbia, MD, Tresys is ranked by Deloitte as one of the fastest growing technology companies in Maryland with over 243% growth.