The MB&G story begins in Portland, Oregon in 1921. David T. Mason, opened a consulting forestry office in the Terminal Sales Building. It was the start of a long and distinguished career for David Mason -- who would eventually emerge as one of the nation's leading voices in forestry issues and practices. In 1952, F. K. Weyerhaeuser would say this of David Mason, "No single person has been more influential in promoting sound forest management on private forest lands than he."

Back in the early 1920's, the firm started to expand, a trend which continues today. In 1923, Mason was joined by Carl M. Stevens; the partnership was known as Mason & Stevens. They remained in business as forestry consultants until 1931 when David Mason was appointed manager of the Western Pine Association, and moved to Washington, D.C. Stevens chose to form a partnership with the firm’s secretary, Donald Bruce, and for the next five years the consulting firm was known as Stevens & Bruce.

Longing to be closer to his adopted Northwest forests, David Mason returned to Portland in 1936. Carl Stevens later left the firm, and a new partnership was formed by David Mason and Donald Bruce called Mason & Bruce. The years were busy, and the demand for guidance in developing sustained forestry practices was growing. A dozen years later, James Girard joined the group after he had retired from the U.S. Forest Service, and in 1948 the firm adopted its present name, Mason, Bruce & Girard.

For the next several decades, the goals and core values envisioned by Mason, Bruce & Girard were clear: to be responsive to client needs with honesty and integrity. Today those goals live on. In the 1990s MB&G's services expanded to include Geographic Information Systems (GIS) and Environmental Services. The firm now provides a full range of technical specialists and analytical tools to solve our client's natural resource, inventory management, and permitting needs.