Engineers Engineers Search | Advanced Search | New Members | Coupons and Discounts | All Categories Sort alphabetically by... Name City Gausman & Moore Mechanical and Electrical Engineers _ 501 S. Lake Ave.Duluth, MN 55802 (218) 722-2555 Learn More | Visit Site Obermiller, Nelson Engineering _ 525 Lake Ave. S., Ste 222Duluth, MN 55802 (218) 722-3060 Learn More | Visit Site If your business isn't here, contact us today to get listed!