ManTech International is more than willing to lend a little high-tech manpower to its country. ManTech provides IT services to US federal government intelligence agencies, particularly the Department of Defense (DoD), Homeland Security, and the military. Its national security offerings include intelligence, communications, computer forensics, and security systems development and support. The contractor also offers network design and installation and system testing and evaluation. Its largest contract in 2010 was with the US Army's Tank Automotive Command (TACOM) for weapons research. ManTech International is active in 40 countries, but earns nearly all of its sales in the US.