IndiaMART.com is India's largest online marketplace that assists manufacturers, suppliers & exporters to trade with each other at a common, reliable & transparent platform. Largest free online business directory & yellow page with listing of 1,945,000 Indian & International companies. Find here quality products, trade leads, manufacturers, suppliers, exporters & international buyers.

4. IEEE

IEEE is the world's largest technical professional organization dedicated to advancing technology for the benefit of humanity.

Where they're located: New Orleans, Louisiana, USA
Website traffic: 13.6M/month

5. The University of Texas at Austin

The University of Texas at Austin provides public access to a first-class education and the tools of discovery. This has resulted in a culture of ambition and leadership, where physical scale is matched by bold goals and achievements. UT provides economic stimulus, an educated workforce, applied research, and basic research to solve societal problems and push the knowledge frontier.

Where they're located: Arlington, Texas, USA
Website traffic: 9.62M/month