Security Credit Union is a member-owned financial cooperative chartered in 1949 and headquartered in Michigan. It serves members across Michigan and select counties in Ohio (Fulton, Henry, Lucas, Ottawa, and Wood). The credit union has expanded significantly through mergers and now operates as a community-chartered institution with multiple branch locations.

Security First Federal Credit Union is the largest homegrown credit union in the Rio Grande Valley, Texas, serving over 43,000 members with more than $375 million in assets. Founded in 1947 as Hidalgo Federal Credit Union, it was renamed Security First Credit Union in 2000 and operates multiple branches across Cameron, Hidalgo, Starr, and Willacy counties. The credit union is federally insured by NCUA and offers a full range of member-owned financial services.

Security Service Federal Credit Union (SSFCU) is a federally chartered, NCUA-insured credit union headquartered in San Antonio, Texas, with over $14 billion in assets and more than 800,000 members. Originally established in 1956 to serve U.S. Air Force Security Service members, it has expanded significantly through mergers and now operates 70 locations across Texas, Colorado, and Utah. The credit union offers traditional financial products including checking and savings accounts, loans, mortgages, credit cards, and investment services.

SELCO Community Credit Union is an Oregon-based financial institution founded in 1936 and headquartered in Springfield, Oregon. It serves 27 Oregon counties and 8 Washington counties with 16 branches and offers auto loans, mortgage loans, business banking, insurance, and investment services. The credit union is NCUA-insured and has over 150,000 members.

Self-Help Credit Union, chartered in 1983, operates as a community development financial institution with over $2.15 billion in assets and more than 100,000 members across 36 branches in North Carolina, Florida, Georgia, and Virginia. The credit union is part of the Center for Community Self-Help and focuses on empowering working families and communities historically underserved by conventional lenders.

Selfreliance Federal Credit Union is a member-owned financial cooperative headquartered in Chicago’s Ukrainian Village, serving nearly 49,000 members across Illinois, Connecticut, Massachusetts, Michigan, Minnesota, and New Jersey with over $1 billion in assets. Founded in 1951 by Ukrainian immigrants, it has grown through multiple mergers and operates 15 branch offices as of February 2026. The credit union is regulated by the NCUA and provides affordable loans, savings products, and community support focused on the Ukrainian-American community.

Service 1st Federal Credit Union is headquartered in Danville, Pennsylvania, and was founded in 1975 as Geisinger Employees Federal Credit Union. It operates 12 branches across central Pennsylvania counties and serves over 50,000 members. The credit union is a not-for-profit financial cooperative offering checking, savings, loans, and investment services.

Founded in 1942, SESLOC Credit Union is a not-for-profit financial institution serving central and coastal California with $1.2 billion in assets and 59,000 members. Originally established for school employees in San Luis Obispo County, it has expanded to serve anyone who lives, works, or attends school in nine counties: San Luis Obispo, Santa Barbara, Ventura, Monterey, Santa Cruz, Tulare, Kern, Fresno, and Kings. The credit union operates six branches and offers personal and business banking, lending, and investment services.

Seven Seventeen Credit Union Inc is a federally insured credit union headquartered in Warren, Ohio, serving northeastern Ohio with 18 branches across Trumbull, Mahoning, Columbiana, Summit, Portage, and Stark counties. Originally founded in 1957 to serve members of IUE Local 717 at Packard Electric, it has grown to become the largest credit union in Northeast Ohio with over 120,000 members. The institution offers comprehensive banking services including checking and savings accounts, auto loans, mortgages, home equity loans, credit cards, and business banking solutions.

Sharon & Crescent United Credit Union (SCU) is a state-chartered, member-owned financial cooperative headquartered in Sharon, Massachusetts, formed in 2020 through the merger of Sharon Credit Union and Crescent Credit Union. The credit union operates 12 full-service branches across southeastern Massachusetts and Rhode Island, offering deposit accounts, loans, credit cards, and related financial services. It is federally insured by the NCUA and has approximately $1.25 billion in assets.