Weyerhaeuser Company, one of the world's largest private owners of timberlands, began operations in 1900 and today owns or controls more than 10 million acres of timberlands in the U.S., as well as additional public timberlands managed under long-term licenses in Canada. Weyerhaeuser has been a global leader in sustainability for more than a century and manages 100 percent of its timberlands on a fully sustainable basis in compliance with internationally recognized sustainable forestry standards. Weyerhaeuser is also one of the largest manufacturers of wood products in North America and operates additional business lines around product distribution, climate solutions, real estate, and energy and natural resources, among others. In 2025, the company generated 6.9 billion dollars in net sales and employed approximately 9,500 people who serve customers worldwide. Weyerhaeuser Company was incorporated in 1900 in Washington and is based in Seattle, United States.