In 2003, there were about 863 regional, national, and international organizations within the state. Among the organizations headquartered in Montana are the American Simmental Association (Bozeman) and Bikecentennial: The Bicycle Travel Association (Missoula).
Regional arts, history, and culture are represented in part through the Boone and Crockett Club, the Butte Jazz Society, the Custer Battlefield Historical and Museum Association, and the Lewis and Clark Trail Heritage Foundation. Conservation and outdoors recreation organizations include the Greater Yellowstone Coalition, Montana Outfitters and Guides Association, the National Forest Foundation, and the Yellowstone Park Foundation.
The Indian Law Resource Center, founded in 1978 and based in Helena, serves as a legal, environmental, and human rights organization promoting the welfare of Indian tribes and other indigenous peoples in North America.