According to Fortune 500 Global list for 2017, US retail giant Walmart has topped the list with a revenue of $486 billion, marking its fourth consecutive year of doing so. Interestingly, Walmart has claimed the top spot 12 times on the list, which ranks companies based on total revenues. Warren Buffett's Berkshire Hathaway and tech giant Apple were among the top 10, while Zuckerberg led Facebook and Jack Ma's Alibaba debuted on the list this year.
