Clermont Steel Fabricators (abbreviated as CSF) is a private steel products manufacturing company known for making Bolliger & Mabillard roller coasters.

As a result, SOF manufactured its first coaster, Iron Wolf at Six Flags Great America.

Prior to the project, SOF's main focus was manufacturing commercial and industrial buildings.

In 2004, SOF closed[2] and Miller and a group of investors bought the company, renaming it Clermont Steel Fabricators and making the decision to focus on coaster manufacturing.

[3][4][5] The company manufactures other steel products, including turbine power bases and enclosures, heavy weldments, machine bases, structural steel, louvers and dampers, and industrial equipment.