Agri-Mark Dairy Coop Announces Multi-Million Dollar Investment In Cheese Plant By Pat Bradley • Mar 10, 2016 Listen Listening... / 0:50 Agri-Mark and Empire State Development announced Thursday that nearly $30 million will be invested in the company’s Northern New York cheese manufacturing plant. Agri-Mark Dairy Co-op to Consolidate Vermont Offices By Pat Bradley • May 7, 2013 Agri-Mark Listen Listening... / The Agri-Mark Inc. dairy cooperative is planning to consolidate its Vermont operations and buy and renovate an industrial building in Waitsfield.