The firm that is now known as ATS&R (Armstrong Torseth Skold and Rydeen) was founded in 1944 by Claire Armstrong and Gordon Schlichting. Armstrong was a structural engineer by training and Schlichting was an architect. The combination of a creative designer and a detailed-oriented businessperson has always been a winning combination for the firm and one of the keys to the firm's stability and success. Armstrong and Schlichting recruited other partners to continue the firm after they would leave. They felt the buildings they designed would last far longer than they would and they wanted the client to continue to be served.

Armstrong and Schlichting brought in John Torseth and Kenneth Skold as partners to form the second generation of the firm. When Schlichting retired, the firm name changed to Armstrong Torseth and Skold.

In the third generation of ATS&R, James Rydeen was brought in as a partner and the name changed again to Armstrong Torseth Skold and Rydeen (ATS&R). As more partners became involved and people retired, a decision was made not to change the name again.

In 1997 a change in philosophy allowed additional partners to include members of each of the in-house disciplines. As a result of that philosophy clients benefit from having a partner engaged in every project undertaken by the firm. Currently, Paul W. Erickson provides leadership to ATS&R as its President.

ATS&R is proud of providing clients with quality buildings and superior service for more than 60 years.