Sharonview Federal Credit Union is a member-owned credit union headquartered in Fort Mill, South Carolina, serving over 68,000 members with more than $1.1 billion in assets. Founded in 1955 by 20 manufacturing employees, it operates branches in North Carolina, South Carolina, and New Jersey, with access to over 30,000 ATMs nationwide. The credit union offers checking, savings, mortgages, auto loans, credit cards, and other financial services.

Shell Federal Credit Union, chartered in 1937, is a member-owned, not-for-profit financial institution serving Harris County, Texas. With fourteen branch locations across the Greater Houston area and over 139,000 members managing $1.7 billion in assets, Shell FCU offers a full range of financial products and services including savings, lending, and digital banking solutions.

Sidney Federal Credit Union (SFCU) is a community-based credit union headquartered in Sidney, New York, established in 1949. It serves over 70,000 members across multiple counties in central and upstate New York with assets exceeding $980 million. SFCU offers a full range of financial services including checking and savings accounts, loans, mortgages, and credit cards to individuals and businesses in its geographic service area.

Sierra Central Credit Union is a California-based, state-chartered credit union founded in 1955 and headquartered in Yuba City. Originally established to serve military personnel at Beale Air Force Base, it has grown to serve over 72,000 members across northern California with approximately $1.3 billion in assets. The credit union operates 18���������20 branch locations and offers a full range of personal and business financial services.

Sikorsky Financial Credit Union is a state-chartered credit union headquartered in Stratford, Connecticut, founded in 1948 to serve Sikorsky Aircraft employees and their families. It is now the fourth-largest credit union in Connecticut with over 53,000 members and $760 million in assets. The credit union serves residents of Fairfield, New Haven, and Hartford counties and is federally insured by the NCUA.

SIU Credit Union is a not-for-profit, member-owned financial cooperative headquartered in Carbondale, Illinois, serving southern Illinois since 1938. The credit union manages over $497 million in assets and serves more than 44,800 members across multiple counties in southern Illinois. It is federally insured by the NCUA and offers a full range of financial products including savings, checking, loans, and investment services.

Skyla Credit Union is a full-service, not-for-profit financial institution headquartered in Charlotte, North Carolina, serving over 93,000 members across the Carolinas and expanding nationally. The credit union resulted from the 2021 merger of Charlotte Metro Credit Union with Premier Federal Credit Union and later merged with Parsons Federal Credit Union, adding branches in California and Virginia. Skyla offers personal and business banking, loans, mortgages, credit cards, and investment services with approximately $1.4 billion in assets.

SkyOne Federal Credit Union is a federally chartered, not-for-profit credit union headquartered in Hawthorne, California, serving over 50,000 members with approximately $700 million in assets. Originally founded in 1949 to serve Civil Aeronautics Administration employees, it has expanded significantly and now serves a broader membership base including air transportation industry employees and their families, as well as those in designated geographic areas and members of qualifying organizations. The credit union is federally insured by the National Credit Union Administration (NCUA) and operates nationwide.

Smart Financial Credit Union is a Houston-based, federally insured credit union established in 1934 with over 70,000 members and 14 branches across the greater Houston region (Brazoria, Fort Bend, Harris, and Montgomery Counties, Texas). Originally founded as the Houston Public School Teachers Credit Union, it expanded to community status and now serves a broad geographic membership. The credit union offers personal banking, loans, and financial services to its member-owners.

Soarion Credit Union (formerly Air Force Federal Credit Union) is a federal credit union headquartered in San Antonio, Texas, chartered in 1952 and regulated by the NCUA. Originally founded by 10 airmen at Lackland Air Force Base, it has grown to serve nearly 55,000 members worldwide with over $600 million in assets and operates financial centers in San Antonio, Del Rio, and Columbus, Mississippi.