Welcome to KM Chng

Founded in March 1989, KM Chng Environmental Inc. (KM Chng) is a nationally recognized expert in the areas of air quality assessment and noise and vibration analyses and monitoring for transportation and infrastructure development projects. We provide our services to both the public and private sectors.

KM Chng is a certified small business with the US Small Business Administration (SBA) and a Certified Minority Business Entity (MBE) in Massachusetts. We are pre-qualified in the areas of Air Quality and Noise studies with several states including Massachusetts, Connecticut, New York, New Jersey, Maryland, Virginia, Georgia, Ohio, Illinois, Indiana, Michigan, Pennsylvania and Florida.