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Thomson Power Systems Brand

The Marathon® Thomson Power Systems brand is a leader in electrical products and systems for use in the power generation industry. The brand specializes in the design, engineering, and assembly of custom power generation controls, automatic transfer switches, and switchgear for low and medium voltage applications.  


Marathon Thomson Power Systems 2000 Switchgear
System 2000 Switchgear

Thomson designs, manufactures and services power generation switchgear for prime power, standby, distributed generation and cogeneration applications.

Marathon Thomson Power Systems Transfer Switches
Transfer Switches

Thomson manufactures a complete lineup of transfer switches ranging from 100A to 4000A.  Our innovative designs offer power solutions for mission critical, industrial, agricultural and residential applications.


The Marathon® Thomson Power System brand is applied in a myriad of applications and in a host of industries.  You can find interesting solutions and innovations by clicking on the links below.