National Police Federal Credit Union is a credit union serving law enforcement and public safety personnel, based in Chicago, Illinois. The institution serves police officers and related public safety professionals across multiple states.

Numark Credit Union is a federally chartered credit union based in Joliet, Illinois. It serves members in the Chicago metropolitan area and surrounding regions. The institution provides standard credit union services including savings accounts, loans, and financial products to its membership base.

1st MidAmerica Credit Union is a not-for-profit financial cooperative headquartered in Bethalto, Illinois, founded in 1934 as the Western Cartridge Company Employees Credit Union. It serves over 63,000 members across 10 branches in Illinois and Missouri, offering mortgages, auto loans, checking accounts, and investment services. The credit union is the 14th largest in Illinois and operates under an Illinois state charter.

Corporate America Family Credit Union is a federally chartered credit union located in Elgin, Illinois. It serves members in the Chicago metropolitan area and surrounding regions. The credit union provides standard financial services including savings accounts, loans, and other member-focused products.

Baxter Credit Union is a financial institution located in Vernon Hills, Illinois, serving members in the Chicago metropolitan area. The credit union provides traditional banking services including savings accounts, loans, and other financial products to its membership base.

Alliant Credit Union is a federally chartered credit union headquartered in Chicago, Illinois. It is one of the largest credit unions in the United States by assets and membership. Alliant operates as an online-focused institution serving members nationwide with competitive rates on savings and lending products.

Citizens Equity First Credit Union is a federally chartered credit union based in Peoria, Illinois. It serves members in the central Illinois region with a focus on providing financial services to its membership base. The institution operates as a member-owned cooperative financial institution.