Walter Bollinger and Claude Mabillard started as partners around '85 at Giovanola of Switzerland, a subsidiary company to the larger Intamin. One of the coasters that they worked on while at Giovanola is Flashback at SFMM where they only worked on the trains. Flashback is an Intamin Space Diver, only one of its kind.

In 1988 B&M broke off of Intamin and started their own outfit in Monthey, Switzerland. Six Flags Great America decided they would like to have a new coaster for the '90 season. They noticed B&M's work through Intamin and ordered a stand-up from them. This stand-up was to become Iron Wolf.

B&M was off the ground. Since then, Bollinger and Mabillard have created many new roller coasters, as well as new trains, inversions, and tracks. Their work in the roller coaster industry gives them the distinction of being Great Minds.

Credit: Bollinger and Mabillard Engineering Firm