Ken Dahlberg

When Ken Dahlberg took over as chairman of Science Applications International Corp. in 2004 and chief executive officer in 2003, the company was still entirely employee-owned with annual revenues of less than $6 billion.

Since his ascension to the company's top jobs -- which were held by his predecessor Robert Beyster for 35 years -- the company has increased its annual revenue to more than $8 billion and completed an initial public offering in October 2006 that yielded $1.7 billion. Employees still own more than 80 percent of the company, however.

Dahlberg also led a consolidation of the company's business groups from five to four to better position the company for bigger contracts. The company plans to earn annual revenues between $12 billion and $15 billion by the end of the decade.

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