How do i contact dmc customer service? The DMC Corporation. 86 Northfield Ave. Edison, NJ 08837. Email us: [email protected]. To speak with a live representative 9 am - 5 pm EST Monday -Thursday 9 am - 2:30 pm Friday. Phone: (800) 275-4117. Why choose drivedmc insurance? DMC Insurance continues to invest time and financial contributions to our community partners within the greater Indianapolis metropolitan area and across the country. Giving back to our community is a cornerstone of DMC’s beliefs.Why choose dmc for claims handling? Our claims handling is a partnership, saving money and reducing costs for both of us. We are experienced trucking specialists, guiding you through every issue. FILING A CLAIM? DMC is Trucking Insurance Done Differently. “DMC distinguishes itself by being a true value add partner.”