Operating Engineers Local Union #3 FCU is a federal credit union serving members of Operating Engineers Local Union #3 and their families in the Livermore, California area. The credit union is chartered to serve construction and heavy equipment operators in Northern California. It provides standard financial services including savings, checking, and lending products to its membership base.

Sierra Central Credit Union is a federally chartered credit union serving the Yuba City, California area and surrounding communities. The institution provides financial services including savings accounts, loans, and other banking products to its membership. It operates as a community-based credit union in the Sacramento Valley region.

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.