Bob Sanderson begins working for Jack Mueller and Jim O'Brien at Sage Engineers and Land Planners as a rear chainman on a survey crew.
Jack Mueller starts Mueller Engineering in a converted garage on Grand Avenue. Bob works for Jack during vacations from college
Jack calls Bob in Seattle, and Bob returns to work for the growing firm after a stint with the Department of the Navy.
Engineering, Inc. is incorporated and the firm continues to grow at its new location in the Plaza Office Building at 1629 Avenue D in Billings.
John Stewart returns to join the firm in his hometown of Billings after six years in Iowa.
Bob and John complete their purchase of the firm from Jack, and Jack retires.
Rick Leuthold joins the firm as a construction inspector.
The growing firm moves to a new office in the Homestead Business Park in Billings, and Dennis Randall joins Engineering, Inc. of Wyoming in Sheridan and moves to the Billings office two years later.
Michael Sanderson, while still in high school, begins working at Engineering, Inc. as a surveyor.
Michael, Rick and Dennis purchase the firm from Bob and John, but Bob and John remain with the firm as active project managers and members of the Board of Directors.
Engineering, Inc. moves to its new office in the TransTech Center and helps pioneer Billings’ new state-of-the-art tech park.
Engineering, Inc. opens a branch office in Bozeman, Montana. Go Bobcats!
In its 40th year as a company, the firm introduces its new name, Sanderson Stewart.
Sanderson Stewart opens a branch office in Denver, Colorado