25 most powerful people in business

Some are empire builders. Others are hired guns. But if they truly have world-class oomph, they're on Fortune's subjective - yet really quite accurate - list of the most powerful businesspeople in the world.

Carlos Slim
20. Carlos Slim
Chair, TelMex and Carso Foundation

Slim's companies help Latin America work. His América Móvil wireless service operates in 16 countries and provides phone service to more than 137 million customers. In his home country, Mexico, Slim's TelMex controls more than 90% of the phone connections. His companies build roads and erect oil platforms, his banks loan money to businesses and consumers alike, and he even sells knickknacks through his Sanborn's retail chain.

The son of a Lebanese immigrant, Slim, 67, has a personal fortune of about $59 billion, making him the world's richest man; Slim-controlled companies make up one-third of the $422 billion Mexican stock exchange - a position of unique dominance. It is all but impossible for the average Mexican to function without interacting with a Slim-controlled company in some way every day. Slim shrugs off accusations he is a monopolist or an oligarch. With family members installed at various Slim companies, the billionaire is spending more time giving away some of his fortune. --Stephanie N. Mehta

Steve Jobs

Rupert Murdoch

Lloyd Blankfein

Eric Schmidt, Larry Page, and Sergei Brin

Warren Buffett

Rex Tillerson

Bill Gates

Jeff Immelt

Katsuaki Watanabe

A.G. Lafley

John Chambers

Li Ka-shing

Lee Scott

Lakshmi Mittal

Jamie Dimon

Mark Hurd

James McNerney

Marius Kloppers

Steve Schwarzman

Carlos Slim

Steve Feinberg

Indra Nooyi

Ratan Tata

Bob Iger

Bernard Arnault
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