South Dakota International Business Institute
- Supports the Governor's Office of Economic Development in facilitating and enhancing international trade in the state of South Dakota. Statistics, seminars and resources.
- http://www.sd-exports.org/

South Dakota Chamber of Commerce & Industry
- Calendar, staff, membership directory, issues and links.
- http://www.sdchamber.biz/

SD Defense Lawyers Association
- An association of attorneys who defend civil cases. Features meeting details, news, who's who and contact information.
- http://www.sddla.com

Associated General Contractors of South Dakota
- Organization that promotes skill, responsibility and intergrity through construction and services.
- http://www.sdagc.org/headers/index.asp

SD CPA Society
- Contains general information, membership application, educational programs, news, and subject-related links.
- http://www.sdcpa.org/

South Dakota No-Till Association
- To promote, advance and improve agriculture through the utilization of no-till farming methods. Includes by-laws, member profiles, project information and newsletters.
- http://www.sdnotill.com/

SD Home Builders Association
- Includes who's who, how to join, member benefits and events information, as well as information on building, insuring and financing your home.
- http://www.sdhomebuilders.com/

SD Corn Growers Association
- Dedicated to serving farmers, educators, business people and others across the state and the nation with valuable information and useful resources. Includes announcements, educational information, weather, ethanol and utilization data.
- http://www.sdcorn.org/