Big Dogs, new tricks

is known as the Big Dog issue. Here are two pieces of information that explain why:These are the Big Dogs of federal market. Their influence and muscle are clearly growing.But that doesn't mean these companies are standing pat. Executives with Lockheed Martin Corp., the No. 1 company on the list, said they are continually on the prowl, looking to buy companies that will extend Lockheed Martin's reach into new federal offices and agencies. "Our business is an extremely competitive business," Arthur Johnson, senior corporate development strategist at Lockheed Martin, told one of our reporters. "Every competition is hard fought, and we don't like to lose."The Top 100 issue and expanded Top 100 Online (www.washingtontechnology.com/top100) provide the most detailed analysis of the federal IT market that you will find. The charts, statistics and in-depth profiles of the top companies give insight into market trends and company strategies. The Top 100 companies are continually reassessing their organizations, products and services, looking for ways to get an edge on their competitors."We tend to reinvent ourselves every two or three years," said Renato DiPentima, president and chief executive officer of No. 27-ranked SRA International Corp.These Big Dogs can hunt.