By: Laura Benold

TechConnect World 2012 Utility Technology Challenge finalist, Primus Power, is joined by only 9 other energy/cleantech companies in the TiE World's 50 Hottest Startups

The TiE50 team reviewed more than 2,100 applications from companies representing 37 countries. The judges looked at the most enterprising startups of 2012 in five sectors that are driving today’s economy: Internet/Social Networking, Software/Cloud Computing, Life Sciences, Wireless/Mobile and Energy/CleanTech. The TiE 50 judging process was designed with meticulous planning, screening and judging by a team of more than 40 prominent entrepreneurs, venture capitalists, corporate executives and other domain experts. The 50 winners were selected from 131 world class finalists.
Among the 10 cleantech companies on the list, 2012 UTC Finalist Primus Power and 2011 UTC participant LanzaTech were both chosen.