Santa Barbara, Calif.—The Thornhill Companies announced Marshall Miller has been promoted from operations specialist to the expanded role of head of operations. Miller will take a larger and more defined role in overseeing the operations of the Thornhill Companies’ various wineries, vineyards and alternative crop farming projects. Thornhill Companies is owned by the Miller family and includes Bien Nacido Vineyards & Winery, Central Coast Wine Services, French Camp Vineyards, Paso Robles Wine Serivces and Turn Key Wine Brands.