The founders of Follow Your Heart are now in their 70s. Their first product, in the 1970s, was Vegenaise, an eggless mayo. Since then the company has survived a bitter partnership dispute and the loss of its biggest client, Trader Joe’s, which once accounted for almost 20% of revenue. The company owns a 104,000-square-foot solar-powered headquarters and production facility in Chatsworth, Calif. and expects $50 million in revenue this year–but its world has changed.

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