Designed to last: Honoring a 95-year business legacy
There is a lot to look back on and celebrate 95 years in business.
Alex Kalmbach earns professional engineering license
After years of education, experience, and rigorous exams, Alex has officially earned the distinguished PE credential in mechanical engineering.
TSP recognized again as a top workplace
Each year, Prairie Business selects top companies based on nominations submitted by their employees.
How images shape a design legacy
Through the years, diverse project types, and in various communities, professional photography has played a vital role in preserving the spirit of the work.
The Legacy of Harold Spitznagel: Building by Design
TSP's founder was a community-driven leader who balanced hard work with humor and a deep appreciation for living life to the fullest. Discover more about Spitz through SD Hall of Fame resources!
