Founder, D.H. Timmerman
Timmerman Geotechnical Group, Inc. was founded as Messmore/Timmerman Services, Inc. in 1976, providing a variety of engineering and material testing services. TGG has continued to grow in size and scope and now offers the services listed below. See the 'Services' tab for more information.
Subsurface Explorations Laboratory Analyses
Foundation Analyses Soil, Concrete, and Asphalt Testing
Geotechnical Reports Structural Steel Inspection
Construction Quality Control Building Materials Testing
Timmerman Geotechnical Group, Inc.