Mde International, Inc | 25 followers on LinkedIn. MDE International, Inc. is headquartered in Burton, Michigan with environmental test sites located throughout the United States. In addition to the testing we perform at our corporate headquarters, we operate year round test facilities in Bemidji, MN; Corpus Christi, TX; Denver, CO; and Las Vegas, NV. Our strategic business alliances allow us to test, evaluate, and manage vehicles virtually anywhere, worldwide.