Headquartered in Concord, Ontario, Environmental Solutions Worldwide (ESW) is a publicly traded company (OTCBB:ESWW) engaged through its subsidiaries ESW Canada and ESW America in the design, development, ISO certified manufacturing and sales of environmental technologies.

The ESW Group of Companies currently manufactures and markets a diverse line of proprietary catalytic emission conversion, control and support products and technologies for the International Transportation, Construction and Utility markets. These products are designed for a myriad of diesel, gasoline/petrol and alternative fueled engine applications. ESW also operates "Air Testing Services", an engine emissions testing, certification and verification facility through its subsidiary in PA recognized by EPA/CARB as capable of performing engine emissions verification test protocols.