Browse the Top 2 Engineering Companies Serving Helena, MT

Bison Engineering is an employee-owned environmental consulting firm specializing in air quality and compliance services. We help industries navigate regulatory requirements through ambient monitoring, source testing, permitting, and emissions management. Our expertise since 1980 combines scientific rigor with practical engineering to balance environmental stewardship and industrial growth.

Robert Peccia & Associates is a Montana-based civil engineering firm specializing in infrastructure, environmental, and surveying projects. With 45 years of experience, we deliver innovative, sustainable solutions for airports, water systems, transportation networks, and land development. Our employee-owned model ensures personalized service and unwavering commitment to client success.