New Sweden Alliance, Inc. is a 501(c)(3) nonprofit organization serving as an umbrella for heritage groups in Delaware, Pennsylvania, and New Jersey. The Alliance promotes and preserves the history, culture, and enduring contributions of New Sweden Colony in the Delaware Valley and lasting impact in the development of the United States. New Sweden Alliance is composed of the following member organizations: American Swedish Historical Museum Delaware Swedish Colonial Society Historic Gloria Dei Preservation Corp. Kalmar Nyckel Foundation New Sweden Centre Old Swedes Foundation Sister Cities of Wilmington, Inc. The Swedish Colonial Society Finnish-American Society of the Delaware Valley