Wintrust Financial Corporation is a financial holding company offering traditional retail and commercial banking services, wealth management, insurance premium financing, and treasury management. It operates 15 community banks across northern Illinois and southern Wisconsin, with a focus on community banking. The company's unique selling proposition is its commitment to retaining the identities of acquired banks, providing personalized service while leveraging large bank resources. Targeting individuals, businesses, and communities, Wintrust emphasizes local decision-making and community involvement, making it a staple in its regions. Its expansion into Michigan via the Macatawa Bank acquisition further enhances its community-focused approach.