Entrepreneurial Impact: The Role of MIT presents the economic impact of companies founded by MIT alumni, based on one of the largest surveys of entrepreneur alumni ever conducted.

Professor Edward Roberts, the founder and chair of the Trust Center, and Charles Eesley wrote the report, and estimate that at the end of 2006, there were 25,600 active companies founded by living MIT alumni, employing 3.3 million people and generating annual world revenues of nearly $2 trillion. This group of companies, if its own nation, would be the 11th-largest economy in the world.

The report, originally issued in 2009, was updated in 2011.

MIT community members can view the 2011 report from on campus, or by using an off-campus computer with a certificate installed.

All others can read the original 2009 report by clicking here, or can purchase the 2011 report from the publisher.