State Farm Federal Credit Union is headquartered in Bloomington, Illinois and serves employees of State Farm Insurance and their families. It is one of the largest credit unions in the United States by assets. The credit union offers a full range of financial services including savings accounts, loans, and investment products.

Suffolk Federal Credit Union is a federally chartered credit union based in Medford, New York, serving members in Suffolk County and surrounding areas. The institution provides standard credit union services including savings accounts, loans, and financial products to its membership base.

Sun Community Federal Credit Union is a credit union based in El Centro, California, serving members in the Imperial County region. The institution provides financial services including savings, lending, and checking accounts to its membership base.

Sun East Federal Credit Union is a federally chartered credit union headquartered in Aston, Pennsylvania, serving members across multiple states. The institution provides comprehensive financial services including savings, checking, loans, and investment products to its membership base.

Sunmark Credit Union is a community-chartered credit union headquartered in Latham, New York, serving the Capital Region and multiple counties throughout New York State. Established in 1937 as a General Electric employee credit union, it has grown to over $1.2 billion in assets with approximately 89,700 members. The institution offers comprehensive financial services including savings, lending, insurance, and investment products.

Sunward Federal Credit Union is a credit union based in Albuquerque, New Mexico. It serves members in the southwestern United States with a focus on providing financial services to its membership base.

Sunwest Educational Credit Union is a federally chartered credit union serving the Pueblo, Colorado area with a focus on educational employees and their families. The credit union operates as a member-owned financial cooperative providing savings, lending, and related financial services to its membership base.

Superior Credit Union is a federally chartered credit union located in Collegeville, Pennsylvania. It serves members in the local community and surrounding areas. The institution operates as a member-owned financial cooperative providing banking services to its membership base.

Teachers Credit Union is a financial cooperative based in Beloit, Wisconsin, serving members in the region. The credit union provides deposit and lending services to its membership. It operates as a federally chartered institution regulated by the NCUA.

Team One Credit Union is a federally chartered credit union serving the Saginaw, Michigan area. It provides financial services to members in the region, offering deposit and lending products typical of community credit unions.