How many stocks are included in the Dow Jones Industrial Average?

The Dow Jones Industrial Average currently consists of 30 major American companies.

3M, Alcoa, American Express, AT&T, Bank of America, Boeing, Caterpillar,Chevron Corporation, Cisco Systems , Coca-Cola, DuPont, ExxonMobil, General Electric, Hewlett-Packard, The Home Depot, Intel, IBM, Johnson & Johnson, JPMorgan Chase, Kraft Foods, McDonald's, Merck, Microsoft, Pfizer, Procter & Gamble, Travelers, United Technologies Corporation, Verizon Communications, Wal-Mart, Walt Disney. - Priya