Mary Barra, who General Motors on Tuesday named its next CEO, will be the first woman to run a major automobile maker. She joins just 22 other female CEOs among U.S. companies in the Fortune 500. Here's a look at the exclusive club.

-- GENERAL MOTORS

Annual revenue: $152 billion

Market value: $56 billion

CEO: Mary Barra, taking over in January 2014

-- HEWLETT-PACKARD CO.

Annual revenue: $112 billion

Market value: $52 billion

CEO: Margaret Whitman, took over in September 2011

-- IBM CORP.

Annual revenue: $105 billion

Market value: $193 billion

CEO: Virginia Rometty, took over in January 2012

-- PEPSICO INC.

Annual revenue: $65 billion

Market value: $127 billion

CEO: Indra Nooyi, took over in October 2006

-- ARCHER DANIELS MIDLAND CO.

Annual revenue: $89 billion.

Market value: $28 billion

CEO: Patricia Woertz, took over in April 2006

-- LOCKHEED MARTIN CORP.

Annual revenue: $47 billion

Market value: $45 billion

CEO: Marillyn Hewson, took over in January 2013

-- DUPONT CO.

Annual revenue: $35 billion

Market value: $57 billion

CEO: Ellen Kullman, took over in January 2009

-- MONDELEZ INTERNATIONAL INC.

Annual revenue: $35 billion

Market value: $60 billion

CEO: Irene Rosenfeld, took over in June 2006 (company was known as Kraft Foods at the time)

-- GENERAL DYNAMICS CORP.

Annual revenue: $32 billion

Market value: $32 billion

CEO: Phebe Nokakovic, took over in January 2013

-- TJX COMPANIES INC.

Annual revenue: $26 billion

Market value: $44 billion

CEO: Carol Meyrowitz, took over in January 2007

-- XEROX CORP.

Annual revenue: $22 billion

Market value: $14 billion

CEO: Ursula Burns, took over in July 2009

-- DUKE ENERGY CORP.

Annual revenue: $20 billion

Market value: $49 billion

CEO: Lynn Good, took over in July 2013

-- AVON PRODUCTS INC.

Annual revenue: $11 billion

Market value: $8 billion

CEO: Sherilyn McCoy, took over in April 2012

-- SEMPRA ENERGY

Annual revenue: $10 billion

Market value: $22 billion

CEO: Debra Reed, took over in June 2011

-- GUARDIAN LIFE INSURANCE OF AMERICA

Annual revenue: $8 billion

Market value: Not available (company is not publicly traded)

CEO: Deanna Mulligan, took over in July 2011

-- CAMPBELL SOUP CO.

Annual revenue: $8 billion

Market value: $13 billion

CEO: Denise Morrison, took over in August 2011

-- MYLAN INC.

Annual revenue: $7 billion

Market value: $16 billion

CEO: Heather Bresch, took over in January 2012

-- INGREDION INC.

Annual revenue: $7 billion

Market value: $5 billion

CEO: Ilene Gordon, took over in May 2009

-- CH2M HILL COS.

Annual revenue: $6 billion

Market value: Not available (company is not publicly traded)

CEO: Jacqueline Hinman, taking over in January 2014

-- GRAYBAR ELECTRIC

Annual revenue: $5 billion

Market value: Not available (company not publicly traded)

CEO: Kathleen Mazzarella, took over in June 2012

-- GANNETT CO.

Annual revenue: $5 billion

Market value: $6 billion

CEO: Gracia Martore, took over in October 2011

-- FRONTIER COMNUNICATIONS CORP.

Annual revenue: $5 billion

Market value: $5 billion

CEO: Maggie Wilderotter, took over in January 2006

-- YAHOO INC.

Annual revenue: $5 billion

Market value: $39 billion

CEO: Marissa Mayer, took over in July 2012