Company Overview

We are an Emissions Focused Platform

ESW Group® manufactures and markets a diverse line of proprietary catalytic emission conversion, emission control and emission support products and technologies for the transportation, construction, rail, marine, utility and other markets. These products are primarily designed for diesel engine applications including medium and heavy duty trucks, school buses, delivery vehicles, garbage collection vehicles. In addition to land vehicles, ESW Group technology is used in large marine engines. The company sells its emission control products through an established network of over 30 dealerships located throughout the United States, which is complemented by a team of seasoned emissions focused business development professionals, engineers and field technicians.

ESW Group also operates ESW America, an engine emissions testing, certification and verification facility which is recognized by EPA and CARB as capable of performing engine emissions verification and certification test protocols for the OEM supply chain. To learn more about ESW America, visit

ESW Group is present throughout North America, including Pennsylvania, California and Ontario, Canada. ESW Group operates two manufacturing facilities spanning the United States continent, including a 20,000 square foot space located in Montgomeryville, PA and a 18,000 square foot facility located in San Diego, CA, that are dedicated to the production and assembly operations of its market leading Level III+ CARB verified diesel emission control devices. In addition, ESW Group operates a 15,000 square feet emissions testing laboratory with eight test cells ranging from a UTV/ATV and motorcycle chassis dynamometer, to a 1,000HP engine 1065 CFR compliant transient dynamometer. This allows ESW Group a vertically integrated approach to conceptualize, obtain regulatory approvals, manufacture and commercialize new emissions based solutions for an ever changing marketplace.