Engineering Excellence for More Than 40 Years

Civil, Structural, Environmental and Transportation Engineers and Land Surveyors














Stahly Engineering & Associates, Inc.

Stahly Engineering & Associates, Inc. was established in 1970. The firm is headquartered in Helena, Montana with a branch office in Bozeman, Montana.


Employees provide service in the fields of transportation engineering, water and wastewater planning and system development, civil site development, and structural engineering. The firm also offers environmental engineering (including wetland mitigation), survey services, assistance with acquisition of funding (grants), and construction management and inspection.  

The ability of Stahly Engineering to manage a project from planning and design to construction has afforded them considerable success over the last 40+ years.