International Willow Collectors (IWC) is a group of people who collect willow-pattern china and other willow wares.

The Wisconsin Pottery Association (WPA) is a non-profit 501(c)(3) organization under federal regulations. Its mission generally is to promote knowledge and appreciation of art pottery among its members and the general public.

In 1988, the Southern Folk Pottery Collectors Society

The Red Wing Collectors Society was founded in 1977 in Red Wing, Minn. and is devoted to providing education about all American pottery. There are more than 4,500 members worldwide.

The North Dakota Pottery Collectors Society is an organization, which was created to enhance collecting interest in the types of pottery made in North Dakota.

Nancy Brock and Norma Jones co-founded the National Autumn Leaf Collectors Club (NALCC) in the fall of 1978.

HLCCA is dedicated to providing a serious educational forum and communication tool for all those who are interested in the important contribution that HLC has made to American culture, from 1873 to the present.

The purpose of the Pickard Collectors' Club is to research, educate, communicate and preserve the history and artifacts of the art movement represented by Pickard and other American porcelain studios and artists.

The National Insulator Association, is an international organization of collectors and friends interested in communication and electrical insulators.

ACME was established in 1994 for the purpose of preserving the history and to encourage the collecting of domestic and international antique coffee mills.