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Imagine That

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This story appears in the August 2007 issue of Entrepreneur. Subscribe »

Ori Sivan and Joe Silver co-founded Greenmaker Supply Co. to market sustainable building supplies to mainstream builders, contractors and homeowners. To help people unfamiliar with make more informed choices, Sivan, 31, developed a set of guidelines called "Seven Seeds of Sustainability" that explains trade-offs between water and , low toxicity, recycling, renewability and other issues.

The helped Greenmaker reach $1 million in sales in 2006, its second year in , and compelled ' governor to select the 12-person Chicago company as one of the state's most innovative. Sivan is now focused on keeping Greenmaker innovative. "The vision," he says, "is to become an engine of innovation."

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