45 Years in Business
45 Years in Business
Since 1978, RPA has provided innovative solutions tailored to fit our client's needs.
Read MoreEngineering Excellence
Engineering Excellence
RPA is a nationally recognized, award-winning Civil Engineering firm.
Read MoreExperts in Civil Engineering & Surveying
Experts in Our Field
From highways to wastewater, RPA has the expert knowledge to complete any project.
Read MoreStart the Next Chapter in Your Career With Us
Your Career With Us
We are a dynamic civil engineering and surveying firm with locations in three beautiful Montana cities.
Read More"The Commissioners have had the opportunity, throughout the years, to work with a number of engineering firms. In the selection of engineering services, we look for expertise, public communication skills, availability, and financial understanding. RPA met and exceeded our expectations in each of these areas.”
Sanders County, MT
Office Locations
Helena, MT
3147 Saddle Drive
Helena, Montana 59601
Phone: 406-447-5000
Kalispell, MT
102 Cooperative Way,
Suite 300
Kalispell, Montana 59903
Phone: 406-752-5025
Bozeman, MT
602 S. Ferguson Avenue, Suite 5
Bozeman, Montana 59718
Phone: 406-284-2110