Soladigm takes $20.7M for green building materials

Soladigm, a fairly stealthy green building company based in Santa Rosa, Calif., has raised $20.7 million of an expected $21.6 million round of equity, according to a filing with the SEC. It lists Sigma Partners and Khosla Ventures as previous investors.

The company doesn’t provide much information on its products or services, saying only that it is “developing next-generation green building solutions with a global impact.” It is, however, recruiting experts in the semiconductor, glass-making and optical coating fields, which indicates that it might soon be producing materials for energy efficient windows.

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