Castanea invests in Yasso

Castanea Partners said Jan. 16 that it has invested in Yasso. Financial terms weren’t announced. Yasso, of Quincy, Massachusetts, is a Greek frozen yogurt brand featuring stick bars, sandwiches, and pints. Piper Jaffray and Nixon Peabody advised Yasso. Ropes and Gray advised Castanea Partners.

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