Barr Engineering Co. is an engineering and environmental consulting firm that helps clients develop, manage, and restore natural resources. The company employs over 1,000 engineers, scientists, and technical specialists, with headquarters in Minneapolis, Minnesota, and additional offices across the Midwest and throughout the Americas. Its project sites span from South America to South Dakota, and from California to western Canada, serving clients around the world.
The firm's technical work spans several key domains: engineering and design, environmental investigation and remediation, environmental permitting and compliance, sustainability and resiliency planning, and water management. Barr serves clients across industries including power, refining, fuels, mining, manufacturing, legal, government agencies, and natural-resource-management organizations.
Employee-owned since 1966, Barr operates with a collaborative model in which employee-owners work shoulder-to-shoulder with clients. The company culture emphasizes listening, adapting, and solving together, with a stated commitment to responsibly managing, developing, conserving, and restoring natural resources.






