Romag Holdings - a glass company that has rapidly expanded its solar business based on its Powerglaz technology
BioFuel Energy Corp - a bioethanol development stage company
Nova Biosource Fuels Inc. - a biodiesel company with over 230 million gallons of Biodiesel in various stages of construction or in operation.
Oxford Catalysts Groups - who make catalysts for fuel cells and biogas conversion

And more to come . . . I suggest you sign up to the AEI newsletter for news of forthcoming IPOs and company announcements.

My rules for admission to AEI list of stocks remain the same;

i) No pink sheets
ii) At least 25% of the company's sales must come from alternative energy technologies
iii) That alternative energy technology must be one of those categorised on the right hand side of this page
iv) Unlike most alternative energy aficianados, I totally reject energy efficiency as a category because of the rebound effect - click on the link if you don't know about it.