Computers & Telecommunications All Categories... Computer Service/SalesTelecommunications go Results Found: 3 Button group with nested dropdown Legacy Leader Golden West Telecommunications Cooperative 116 North Main Ave Hartford SD 57033 (605) 528-3211 Visit Website Big D Technology Solutions, Inc. Big D Technology Solutions, Inc. 3500 S Sheldon Lane Suite 104 Sioux Falls SD 57105 (605) 271-9885 Visit Website Midco Midco 3901 N. Louise Ave SIOUX FALLS South Dakota 57107 (800) 888-1300