Westwood, Mass-based Filterfresh Coffee Service, a subsidiary of Van Houtte Inc, yesterday [Wednesday] announced it has acquired four separate coffee operations in the US under its strategic growth plan. Ag-Horn Coffee and Food Service Company, Filterfresh San Antonio, Alpine Roastery's Office Coffee Service Division-Coffee for a Purpose, and Filterfresh Hudson Valley, will all operate as Filterfresh Coffee Service-owned operations.