AT&T uses its investment strategy to fight off the downturn in government budgets, strengthening its networks and capturing contracts that helped it land the No. 17 spot on the 2013 Top 100.
General Dynamics' Information Systems and Technology unit was a bright spot, leading the company's growth in an otherwise flat year. Where was this Top 100 company finding opportunities?
SAIC brought in a new CEO and moved across the country. But those changes didn't slow its ability to win new contracts and make acquisitions to fuel its growth.
KBR has built a multibillion-dollar business by supporting troops in Iraq and Afghanistan, but more competition is expected as military priorities shift.