NEW YORK--(BUSINESS WIRE)--Smallhold, a Certified B Corporation and leaders in organic specialty mushrooms, today announced their fresh mushrooms are launching nationally at Whole Foods Market stores across the United States. This expansion builds off of Smallhold's success in East coast, West coast, and Southeast stores where the brand became the fastest growing specialty mushroom supplier at Whole Foods Market. The evolution into Whole Foods Market's planogram marks the first time Smallhold m