• SBA District Office
• Service Corps of Retired Executives (SCORE)
• Small Business Development Centers (SBDCs)
• Chambers of Commerce
• State Business Resource List
• Local Development Corporations
• Manufacturer's Directory
• Department of Agriculture Marketing Assistance

Sioux Falls

• Sioux Falls Development Foundation
• Sioux Falls Chamber of Commerce
• City government information

Rapid City

• Rapid City Economic Development Partnership
• Community information
• West River Business Service Center

Aberdeen

• Chamber of Commerce
• Community information
• Northern State University School of Business