Western Alliance Bancorporation is a bank holding company that provides commercial and business banking services through Western Alliance Bank, its primary subsidiary. The company offers a broad range of products including loans, deposit accounts, treasury management, and digital payment solutions, with specialized capabilities for industries such as real estate, homeowner associations, mortgage banking, legal services, and other business-focused sectors. Its banking divisions serve clients across Arizona, California, Nevada, and other U.S. markets, combining local relationship banking with national reach. Western Alliance Bancorporation also provides niche financial services through subsidiaries involved in mortgage lending, corporate trust, and insurance-related activities, making it a diversified provider of business banking and specialty finance solutions.