Economic diversification is important to the San Manuel Band of Mission Indians as the tribe continually strives to expand its financial horizons in Southern California and beyond. The tribe works diligently to ensure a solid economic foundation for future generations by investing in diverse and strategic economic ventures, both on and off the reservation. Economic diversification efforts provide a way for the tribe to branch out from gaming and build a strong economy for tribe and the surrounding communities while sustaining a viable future for generations to come.

Norton Re-Use Project - The tribe owns a total of 91.5 acres on the former Norton Air Force Base located adjacent to a 1,700 acre master planned industrial park to be developed by Ross Perot Jr.-owned Hillwood Development Company. The tribal industrial park will provide up to 1.3 million square feet of leasable space and will include a taxiway for tenants.

Bake Orchard Parkway Project - The San Manuel Band of Mission Indians purchased two commercial buildings which total 53,000 square feet of office space as a real estate investment and profit generating enterprise.

Colton Warehouse Building - The Colton Warehouse is a brand new, state-of-the-art 123,000 square foot building located near the I-10/I-215 Interchange. The tribe acquired the building in June 2004 for July 2004 occupancy.

Wireless Reservation - In 2002, the tribe invested in a communications tower on the reservation. From the tower, fixed wireless broadband service is now provided to tribal homes and buildings on the reservation, and to the Colton Warehouse. By investing in technology infrastructure, the tribe has seen significant cost savings on broadband access.

Sterling and 5th Street Project - The project is designed to use 25 acres of land near the former San Bernardino International Airport for warehousing and storage for the San Manuel Band of Mission Indians and the tribe's many economic ventures.

Washington, D.C. Congressional Building - The San Manuel Band of Mission Indians, in an effort to continue a positive and mutual working relationship with the United States government, has purchased a 12,000 square-foot three-story building near Capitol Hill. The tribe will use the third floor for government relations and other needs and will lease the remainder of the property as a profit-generator.

Sacramento Hotel Project (Three Fires) - Similar to the Four Fires Residence Inn in Washington, D.C., a new hotel project is underway in Sacramento with three of the four tribes, including: the San Manuel Band of Mission Indians, the Viejas Band of Kumeyaay Indians and Oneida Tribe of Indians of Wisconsin. A location has been selected near the capitol to give tribes a base from which to work while meeting at the state level.