OceanAir Federal Credit Union, headquartered in Oxnard, California, is a member-owned not-for-profit financial cooperative serving Ventura County. Rebranded from CBC Federal Credit Union in November 2024, it operates four branch locations throughout Ventura County with assets exceeding $800 million. The institution was originally established in 1952 to serve civilian employees at the Naval Construction Battalion Center in Port Hueneme.

The Golden 1 Credit Union is a state-chartered credit union headquartered in Sacramento, California, serving members primarily in Northern California. It is one of the largest credit unions in California by membership and assets. The credit union serves state employees, public employees, and their families through its field of membership.

1st United Credit Union is a federally chartered credit union serving the Pleasanton, California area. The institution provides financial services including savings accounts, loans, and other banking products to its membership. It operates as a community-focused financial cooperative in the San Francisco Bay Area region.

AltaOne Federal Credit Union is a federally chartered, member-owned financial cooperative headquartered in Ridgecrest, California, originally organized in 1947 as the NOTS Employees Federal Credit Union at China Lake. With over 57,000 members and more than $800 million in assets, it operates branches across Kern, Inyo, Mono, and northern San Bernardino counties. The credit union is certified as a Community Development Financial Institution by the U.S. Department of the Treasury.

Altura Federal Credit Union is a credit union based in Riverside, California, serving members in the region. The institution operates as a federally chartered credit union regulated by the NCUA. Altura FCU provides standard credit union services including savings accounts, loans, and financial products to its membership base.

America’s Christian Credit Union is a federally insured state-chartered credit union headquartered in Glendora, California, with approximately $770 million in assets and 125,000 members as of September 2025. Founded in 1958 as Nazarene Ministers’ Credit Union, it has expanded its field of membership to serve churches, ministries, Christian schools, and individuals aligned with Wesleyan Christian doctrine nationwide. The credit union reinvests member deposits into church expansion, ministry financing, and Christian-owned businesses.

American Airlines Federal Credit Union is a credit union headquartered in Fort Worth, Texas, primarily serving employees and members of the airline industry. The institution operates as a federally chartered credit union with a focus on providing financial services to American Airlines employees and eligible family members.

American First Credit Union is a federally insured credit union established in 1952 in Brea, California, originally serving grocery store workers. The institution expanded its field of membership in the early 2000s and now serves individuals and small businesses across Orange, Riverside, and San Bernardino counties, plus 14 surrounding cities, with partnerships extending membership through over 100 companies and community groups.

Arrowhead Federal Credit Union is a federally chartered credit union headquartered in Rancho Cucamonga, California. It serves members in Southern California with a focus on providing financial services to its membership base. The institution operates as a member-owned cooperative financial institution regulated by the National Credit Union Administration (NCUA).

Bay Cities Credit Union is a federally chartered credit union based in Hayward, California, serving the San Francisco Bay Area. The institution provides financial services including savings accounts, loans, and other banking products to its membership. Bay Cities operates as a community-based credit union with a focus on serving local members.