Gierlich-Mitchell, Inc. was incorporated in 1964 in the State of California by James O. Gierlich, followed by James G. Mitchell until his retirement in 2007.  Currently, Ryan McCloskey serves as President of Gierlich-Mitchell, Inc.

Gierlich-Mitchell, Inc. is primarily a Manufacturers' Representative firm representing 30 Manufacturers of both Pumps and Process Equipment. Nearly every item of process equipment used in the treatment of water or waste water is available from these manufacturers.

Over the last 52 years, Gierlich-Mitchell, Inc.  has continually expanded its staff and capabilities to include Professional Engineers for Mechanical, Electrical and Biological Design applications, as well as complete Field Services and Class A General Contracting Services for Turnkey Installations and Design Build Projects.

As a result of our diversification, the Engineering and Sales Departments have developed a unique skill set of being familiar with both the technical details of equipment as well as the financial impacts to End Users, Contractors, and Manufacturers, of the applications on specific projects.  Gierlich-Mitchell, Inc. will provide assistance in proper sizing and specification writing to Consulting Engineering Firms as well as Municipalities throughout California and Nevada.