Fortune 500 Rank: No. 117
Revenue: $25.7 billion
Top Executive: CEO Richard Hamada
Like fellow distributors Tech Data and Arrow Electronics, Avnet's ranking dropped this year from No. 108 in 2012. And its prospects for moving up anytime soon don't look great. Last month the Phoenix-based distributor said it would cut expenses by $40 million after fiscal third-quarter net income plummeted 41 percent.