After <a href="https://techcrunch.com/2011/09/08/ge-and-others-invest-22-million-in-green-builder-project-frog/">raising</a> $22 million in 2011, the cleantech building developer <a target="_blank" hr
GE is leading a $22 million investment in San Francisco-based green builder <a href="http://www.projectfrog.com/">Project Frog</a>, which helps speed up and reduce the cost of traditional construction