Filtration Systems, Inc.

Filtration Systems Inc. was founded in 1980 by Richard Bayerlein, P.E. with his son Doug Bayerlein, BSME Southern Methodist University. From the beginning, Richard and Doug worked together using their engineering background , expertise, and innovation to create a world-leading filtration manufacturing company. Only the highest quality of materials are considered, and we are proud to say, Made In The USA! The FSI corporate campus and manufacturing plant is located in Waukesha, Wisconsin. Filtration Systems Inc. partners with industry leaders. From the inception of the company, strong partnerships were formed with a number of leading OEM’s optimizing engine filtration. FSI specializes in meeting specs and passing validation testing ensuring compliance for a large number of well known OEM companies. Innovative filtration for the Energy Sector is our specialty with providing enhanced robust filters that provides higher efficiencies in conjunction with longer change-out intervals.