As governments in all countries are making all-out efforts to eliminate unemployment, these large companies have created more job opportunities for millions of people.

Walmart, the United States' largest retailer, stood out as the world's biggest employer with a total of 2.1 million employees in 2010, according to a news report published by the Economist online recently.

China's energy giant-China National Petroleum came in as the second biggest employer in the world, boasting 1.67 million workforce, a 1.5 percent increase over the previous year. The State Grid Corporation of China took the third spot on the list, reporting a total of 1.56 million staff, a 2.0 percent increase from 2009.

Chinese companies dominated the list of the heavyweights which enjoy the greatest number of employees. A total of 8 Chinese corporate employers were included in the list, followed by the United States (3) and Germany (2).

Following are the top 15 biggest employers in the world in 2010: