Ellsworth Builders Supply, Inc., was established in 1959. It was, and still is, a subsidiary of the Ellsworth Falls Lumber Co., Inc. The lumber company originally operated several small sawmills in the area. The supply company became a successful effort to diversify away from the troubles of the sawmill business. Ellsworth Falls Lumber Co. was backed by three families who summered on Mount Desert Island. Our About Us page has great information about EBS.