Weyerhaeuser Company is one of the leading U.S. forest product companies with operations primarily concentrated in Southern California, Nevada, Washington, Texas, Maryland and Virginia. The company caters to a diverse clientele spread over the United States, Canada, Japan, Europe and other regions. The company grows and harvests trees, builds homes and manufactures forest products worldwide, primarily to be used as lumber, pulp and paper, and other wood and building products. It offers logs, hardwood lumber, timber, poles and plywood, as well as minerals, oil, gas, seeds and seedlings.