Since 1945, La Marche Mfg. has been providing reliable power conversion products. La Marche products include industrial battery chargers, battery testers, DC power supplies, inverters and much more. We have built our reputation by controlling all aspects of the development process including design, in-house manufacturing and testing. La Marche is an ISO 9001:2008-certified manufacturer which includes 100% functional testing for every La Marche product. The company is headquartered in Des Plaines, IL. The Arthur N. Ulrich Company is the sales rep for La Marche Mfg. in the North American railroad market.