Dominant Systems provides IT products and related services to the following areas:

Ann Arbor - City of Ann Arbor, University of Michigan
Washtenaw County - Ann Arbor, Chelsea, Dexter, Milan, Saline, Ypsilanti
Wayne County - Detroit, Dearborn, Livonia, Canton, Plymouth, Westland, Southgate
Jackson County - City of Jackson, Summit Township, Blackman Township, Spring Arbor, Parma, Grass Lake, Michigan Center
Lenawee County - Adrian, Tecumseh, Blissfield, Onsted, Clinton, Morenci, Hudson
Livingston County - Brighton, Howell, Pinckney, Hartland, Fowlerville