San Diego County Credit Union (SDCCU) is a federally insured state-chartered credit union headquartered in San Diego, California, chartered in 1938. With approximately $9.3 billion in assets and over 437,000 members, it is one of the largest credit unions in California and the United States. SDCCU operates 39 branch locations across Southern California and serves residents and workers throughout a nine-county region.

Certified FCU is a federal credit union headquartered in El Monte, California. It serves members in the Los Angeles area and surrounding regions. The institution operates as a member-owned financial cooperative providing banking services to its membership base.

BluPeak Credit Union, headquartered in San Diego, California, was established in 1936 and formerly operated as University & State Employees Credit Union (USECU) before rebranding in 2022. The credit union serves nearly 60,000 members across California with over $1.2 billion in assets and operates six branches throughout the state. BluPeak offers a full range of financial products including checking and savings accounts, credit cards, loans, mortgages, and online banking services.

California Coast Credit Union (Cal Coast) is a state-chartered credit union headquartered in San Diego, California, founded in 1929 by educators. As of 2026, it serves over 200,000 members with approximately $3.4 billion in assets across 26 branch locations in Southern California. The credit union operates as part of the CO-OP network, providing access to over 30,000 fee-free ATMs nationwide and 5,400+ shared branch locations.