The Riverside Co. has invested in Tate's Bake Shop Inc., a cookie and baked goods provider.
Southampton, New York-based Tate's makes thin, crisp cookies and all-natural baked snacks. The company also makes cakes, brownies and pies that are sold through grocery and specialty food stores, as well as online. Tate's also makes gluten-free cookies and snacks. Terms of the deal were not disclosed.