Mason, Bruce & Girard, Inc. Updated:12/2017

MB&G offers a comprehensive range of services in forestry, environmental, and geospatial services.

MB&G was founded in 1921 by David Mason, an early and vocal advocate for sustained yield forestry. He brought that passion to a wide variety of projects. Today, MB&G has three lines of business: forestry, environmental, and geospatial services. We are headquartered in Portland, Oregon, and have offices in California, Idaho, and Colorado. MB&G has 55 employees who provide forestry, environmental, and geospatial expertise to help solve some of the most complex natural resource management projects.

We provide outstanding service by getting to know our clients and understanding their business. Our core values are Integrity, Client Service, Quality, and Expertise. They are the key components of the work we do.


  • Oregon Medford Office
    33 North Central Ave
    Suite 418
    Medford, OR 97501
    Phone:  541-973-1951
    Fax: 503-224-6524
    Contact: Steven Ziegler

Contact Mason, Bruce & Girard, Inc.


Contact Mason, Bruce & Girard, Inc.

Michael Lester
Chief Operations Operator
707 SW Washington Street
Suite 1300
Portland, OR  97205
Phone: 503-224-3445
Fax: 503-224-6524

Service Area

Statewide service provider in:
  • California
  • Colorado
  • Idaho
  • Oregon