Alabama State Employees Credit Union is a federally chartered credit union headquartered in Montgomery, Alabama, serving state employees and their families. The institution provides financial services including savings, checking, loans, and other member benefits to its membership base.

Guardian Credit Union of Alabama is a full-service financial institution headquartered in Prattville, Alabama, with 17 branches across 16 counties in central Alabama. Founded in 1958 to serve Alabama National Guard members and their families, it has grown through mergers to become a community-focused credit union serving a broad membership base.

Southern Energy Credit Union, headquartered in Birmingham, Alabama, is the second-largest credit union in Alabama and the largest state-chartered credit union in the state. Founded in 1953 as APCO Employees Credit Union, it rebranded in 2025 following mergers with Powerco Federal Credit Union and Mutual Savings Credit Union. The institution serves over 90,000 members through 28 branches across Alabama, Georgia, and Mississippi, with over $3.5 billion in assets.