SB Mission Archive is a non-profit 501(c)(3) research and educational institution dedicated to the preservation and access of historical and cultural resources related to Franciscan history and Missions. They focus specifically on Colonial New Spain, Northwestern Mexico, and the Southwestern United States. With a mission to provide wide access to their holdings, SB Mission Archive serves as a valuable resource for the community and qualified researchers alike.

Governed by a volunteer Board of Trustees, this non-profit institution relies on donations, grants, and membership dues to cover their operational expenses. The Archive-Library organizes and participates in various educational and professional events to increase knowledge and understanding of California missions and the heritage of California and the Americas. Located in Santa Barbara, California, SB Mission Archive is open to researchers by appointment only, offering a range of collections for study and exploration