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45 Years in Business

45 Years in Business

Since 1978, RPA has provided innovative solutions tailored to fit our client's needs.

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Engineering Excellence

Engineering Excellence

RPA is a nationally recognized, award-winning Civil Engineering firm.

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Experts in Civil Engineering & Surveying

Experts in Our Field

From highways to wastewater, RPA has the expert knowledge to complete any project.

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Start 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.

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Our Clients have a vision and it is our mission to make it happen.

"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