TSP is a multidisciplinary service leader with architecture, engineering, planning, and interior design expertise all within a single company. What began as a one-man shop in 1930 has grown into a regional employee-owned practice. We pair our diverse project background with strategic, fresh design-thinking to deliver projects that meet needs today and are flexible enough to have a meaningful purpose well into the future. When everything just works, we give end-users the best possible experience. 

Architecture

Engineering

TSP's headquarters in Sioux Falls, SD, United States

The Rapid City office focuses on engineering and project management in the healthcare sector, enhancing local infrastructure.

Rapid City

The Rochester office specializes in architectural design and project coordination, focusing on innovative and functional spaces.

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