Who is bigger Sony or Microsoft?

Panasonic has $16.32 billion 12 months ending Jun 30, 2012

a bigger market capitalization vs Sony $11.75 billion 12 months ending Jun 30, 2012 Market Capitalization, often shortened as "Market Cap", is the total market value of a company's outstanding shares. Market capitalization is calculated by multiplying the number of shares outstanding (this includes the value of all listed categories of a corporation's stocks - preferred stock, common shares, etc) by the market price per share which is the current value of a company. For example, if a company has 10 million shares, and the current price per share is $10, then the company's market capitalization is (10 million shares x $10), or $100 million.

Market cap is the public market's gauge of how much a company is worth.

The question needs clarification: bigger is 1. more offices more employees more products...