Wintrust Financial Corporation is a financial holding company that operates as a community-focused bank with regional prominence across northern Illinois, southern Wisconsin, northwest Indiana, and western Michigan. The company provides comprehensive banking services including traditional retail and commercial banking, as well as specialized financial solutions. Its operations span three primary segments: community banking, which generates the majority of revenue; specialty finance, including premium financing for property and casualty insurance and life insurance; and wealth management services. Wintrust also offers treasury management services and equipment financing capabilities. The company operates 15 chartered community banks and maintains a substantial presence in its core markets, establishing itself as a significant regional banking institution. Wintrust's business model emphasizes personalized customer service while leveraging its unique market position to deliver loans, deposits, and financial products tailored to local and commercial clients throughout its footprint.