In June 1930, during the height of the country’s worst economic depression, Harold T. “Spitz” Spitznagel started his design firm with $20 capital and a $15-a-month office lease. The practice he founded would become one of the Midwest’s premier architecture, engineering, planning, and interior design companies.

TSP has solidified its position as a leading design firm in the region, with award-winning projects across the Midwest along with an extensive portfolio of projects that dot the landscape across Iowa, Minnesota, South Dakota, North Dakota, Nebraska, Colorado, Wisconsin, and Wyoming. From aquatic centers to sports venues, community facilities to churches, early childhood to university spaces, zoos, and beyond, our diverse body of work speaks volumes about our expertise and versatility. TSP is committed to continued growth and serving the evolving needs of the region.

Sioux Falls, South Dakota
In Sioux Falls, the multidisciplinary TSP team consists of more than 30 architects, engineers, interior designers, project managers, and administrative staff. Spitznagel’s first major commission, Sioux Falls’ art deco-inspired City Hall, still serves his hometown. And we continue to design and create legacy facilities around the region.

Rapid City, South Dakota
TSP’s connection with western South Dakota extends back almost from the beginning. In the mid-1930s, U.S. Senator Peter Norbeck and officials turned to Harold Spitznagel for a design at Sylvan Lake Lodge. TSP opened an architectural office in Rapid City in 1973. In 1975, the first professional engineer joined the staff, and through partnerships with Monument Health, Pennington County, the City of Rapid City, and many more we continue to grow.

Rochester, Minnesota
TSP has had a presence in Rochester since 1969, changing the way residents of Rochester and southeastern Minnesota live, work, and play. In six decades, we’ve worked with icons such as IBM and the Mayo Clinic and on numerous City and County buildings, including the remodel of the Mayo Civic Center. We’ve also designed and remodeled local and area schools and partnered with various community and religious groups and organizations.

Watertown, South Dakota
TSP strengthened its presence in Watertown by formally opening a downtown office there in 2017. The firm’s original connections to Watertown go back to the middle 1950s, when it designed Watertown High School. Other TSP-designed buildings in Watertown include Holy Name and Immaculate Conception Catholic churches, the South Dakota Army National Guard Readiness Center, the Watertown Events Center, and the new Serenity Hills and CARE facility for the Human Service Agency.

After more than 90 years in business, we have certainly learned that every project is unique, and every community has its subtle distinctions. We believe the best designs are built around — and with — the people they’ll serve. Our understanding of exactly what clients need enables us to place those features precisely where they’re needed. When everything just works, we give end-users the best possible experience.

Today, TSP is led by Jared Nesje, who has held the role of CEO since 2015. He is only the fifth CEO to lead the firm, and the first architect in the position since Spitznagel founded the company. Under Nesje’s direction, TSP has continued to pursue a strong design focus while staying true to our purpose to make communities better, by design.

Want to learn more about how Team TSP can help with your next project, give us a call.

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