Medium and Small Scale Concentrated Solar Thermal Power Platform

Open source project for concentrated solar thermal engine :

Zenman Energy (look into what they have done recently, seems promising, hope it didn't dissolve)

Companies working on small scale solar concentrator power:

http://www.mss-csp.info/cms/front_content.php?idcat=12

There are useful links to Documents - papers and projects, with contact names, such as

http://www.mss-csp.info/cms/front_content.php?idcat=80