Here's What the Leaders of the 11 Most Successful U.S. Companies Studied in CollegeFind out what types of degrees led Tim Cook, Mary Barra and other CEOs to the top of the ladder.

如果你想成为一个强大的公司的首席执行官,choosing the rightcollege majoris an important place to start.

We took a look at the leaders of the top 11 companies in this year'sFortune 500, and by and large, they each majored in a field directly related to industry of their future employer. And nearly all of the CEOs obtained post-graduate education after getting their bachelor's degree.

Here are the college degrees held by some of America's most powerful CEOs.

Related video:Is College Education Dead?

Steven Collis -- AmerisourceBergen

AmerisourceBergenis worth $17.31 billion.

B.S. in commerce -- University of the Witwatersrand

Honors bachelor of commerce -- University of the Witwatersrand

James Hackett -- Ford Motor Company

Ford Motor Companyis worth $46.65 billion.

B.S. in finance -- University of Michigan

Randall Stephenson -- AT&T

AT&Tis worth $212.54 billion.

B.S. in accounting -- University of Central Oklahoma

Master of Accountancy -- University of Oklahoma

Mary Barra -- General Motors

General Motorsis worth $61.64 billion.

B.S. in electrical engineering -- General Motors Institute

M.B.A. -- Stanford University

Larry Merlo -- CVS Health

CVS Health Corp.is worth $71.18 billion.

B.S. in pharmacy -- University of Pittsburgh

David Wichmann -- UnitedHealth Group

UnitedHealth Groupis worth $202.57 billion.

B.S. in accounting -- Illinois State University

John Hammergren -- McKesson

McKessonis worth $29.41 billion.

B.A. in business administration -- University of Minnesota

M.B.A. -- Xavier University

Darren Woods -- ExxonMobil

ExxonMobilis worth $339.55 billion.

B.S. in electrical engineering -- Texas A&M University

M.B.A. -- Northwestern University

Tim Cook -- Apple

Appleis worth $871.85 billion.

B.S. in industrial engineering -- Auburn University

M.B.A. -- Duke University

Warren Buffett -- Berkshire Hathaway

Berkshire Hathawayis worth $443.69 billion.

B.S. in business administration -- University of Nebraska

M.S. in economics -- Columbia University

Doug McMillon -- Walmart

Walmartis worth $228.28 billion.

B.S. in business administration -- University of Arkansas

M.B.A. in finance -- University of Tulsa